Search Results

Search found 1726 results on 70 pages for 'wolfram alpha'.

Page 53/70 | < Previous Page | 49 50 51 52 53 54 55 56 57 58 59 60  | Next Page >

  • Install GIMP 2.7.1 on Lucid Lynx using PPA

    - by Vivek
    GIMP lovers are going to be disappointed to hear that GIMP is going away in the next release of much awaited Ubuntu 10.04. Today we take a look at installing in on Lucid Lynx using PPA. The reason for getting rid of it as cited by the GIMP developers, is that GIMP is too professional a software to be included in regular desktop version of Ubuntu. And it takes up too much of space on the disk. Also, the fact that it’s too complicated for regular users. If you can’t live without it…let’s see how to install GIMP 2.7.1 on Lucid Lynx (Currently in Alpha). The new version of GIMP supports single window mode and we will also see how to enable this feature as well. First we need to add the official GIMP 2.7.1 PPA in the software sources of Ubuntu 10.04, by opening the terminal window and typing the following command: sudo sh -c “echo ‘deb http://ppa.launchpad.net/matthaeus123/mrw-gimp-svn/ubuntu lucid main’ >> /etc/apt/sources.list” Now that we have added the PPA we need to add the GPG key, so type the following in your Terminal window. sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com 405A15CB Next up we have to update the software repository… sudo apt-get update All that is left is to install GIMP 2.7.1 by typing in the following… sudo apt-get install gimp Click ‘Y’ (for yes) to install GIMP Once GIMP is installed you can start it by going to Applications > Graphics > GNU Image Manipulation Program. You now have your favorite GIMP on your favorite Ubuntu 10.04. As you can see in the image below, GIMP still comes with default 3 windows, which could clog up your lower panel In Ubuntu 10.04. However, now you can run GIMP in single window mode by going to Windows > Single-Window mode. That’s all! Now you have your GIMP running in single window mode with less of hassle to manage 3 windows. It’s unfortunate that GIMP will not be included, but by following these instructions, you’ll be able to enjoy using it in Ubuntu 10.04. Similar Articles Productive Geek Tips Show the List of Installed Packages on Ubuntu or DebianHow to Install Windows Applications on Linux Using CrossoverInstall VMware Tools on Ubuntu Edgy EftInstall Adobe PDF Reader on Ubuntu EdgyInstall MySQL Server 4.1 on Ubuntu TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Stretch popurls.com with a Stylish Script (Firefox) OldTvShows.org – Find episodes of Hitchcock, Soaps, Game Shows and more Download Microsoft Office Help tab The Growth of Citibank Quickly Switch between Tabs in IE Windows Media Player 12: Tweak Video & Sound with Playback Enhancements

    Read the article

  • Using the ASP.NET Membership API with SQL Server / SQL Azure: The new &ldquo;System.Web.Providers&rdquo; namespace

    - by Harish Ranganathan
    The Membership API came in .NET 2.0 and was a huge enhancement in building web applications with users, managing roles, permissions etc.,  The Membership API by default uses SQL Express and until Visual Studio 2008, it was available only through the ASP.NET Configuration manager screen (Website – ASP.NET Configuration) or (Project – ASP.NET Configuration) and for every application, one has to manually visit this place to start using the Security and other settings.  Upon doing that the default SQL Express database aspnet.mdf is created to store all the user profiles. Starting Visual Studio 2010 and .NET 4.0, the Default Website template includes the Membership API controls as a part of the page i.e. When you create a “File – New – ASP.NET Web Application” or an “ASP.NET MVC Application”, by default the Login/Register controls are enabled in the MasterPage and they are termed under “ApplicationServices” setting in the web.config file with connection string pointed to the SQL Express database. In fact, when you run the default website and click on “Logon” –> “Register”, and enter the details for registration and click “Register”, that is the time the aspnet.mdf file is created with the tables for Users, Roles, UsersInRoles, Profile etc., Now, this uses the default SQL Express database within the App_Data folder.  If you want to move your Membership information to some other database such as SQL Server, SQL CE or SQL Azure, you need to manually run the aspnet_regsql command and specify the destination database name. This would create all the Tables, Procedures and Views required to handle the Membership information.  Thereafter you can change the connection string for “ApplicationServices” to point to the database where you had run all the scripts. Now, enter “System.Web.Providers” Alpha. This is available as a part of the NuGet package library.  Scott Hanselman has a neat post describing the steps required to get it up and running as well as doing the basic changes  at http://www.hanselman.com/blog/IntroducingSystemWebProvidersASPNETUniversalProvidersForSessionMembershipRolesAndUserProfileOnSQLCompactAndSQLAzure.aspx Pretty much, it covers what the new System.Web.Providers do. One thing I wanted to clarify is that, the new “System.Web.Providers” add a lot of new settings which are also marked as the defaults, in the web.config.  Even now, they use SQL Express as the default database.  But, if you change the connection string for “DefaultConnection” under connectionStrings to point to your SQL Server or SQL Azure, Membership API would now be able to create all the tables, procedures and views at the destination specified (i.e. SQL Server or SQL Azure). In my case, I modified the DefaultConneciton to point to my SQL Azure database.  Next, I hit F5 to run the application.  The default view loads.  I clicked on “LogOn” and then “Register” since I knew there are no tables/users as of then.  One thing to note is that, I had put “NewDB” as the database name in the connection string that points to SQL Azure.  NewDB wasn’t existing and I would assume it would be created before the tables/views/procedures for Membership are created. Once I clicked on the “Register” to register my first username, it took a while and then registered as well as logged in me in.  Also, I went to the SQL Azure Management Portal and verified that there exists “NewDB” which has just been created I could also connect to the SQL Azure database “NewDB” from Management Studio and found that the tables now don’t have the aspnet_ prefix.  The tables were simply Users, Roles, UsersInRoles, Profiles etc., So, with a few clicks and configuration change, I could actually set up the user base for my application on SQL Azure and even make the SessionState, Roles, Profiles being stored in SQL Azure database. The new System.Web.Proivders also required MARS (MultipleActiveResultSets=true) setting since it uses Entity Framework for the DAL operations.  Also, the “Project – ASP.NET Configuration” screen can be used to further create/manage users/roles etc., although the data is stored on the remote database. With that, a long pending request from the community to have the ability to configure and use remote databases for Application users management without having to run the scripts from SQL Express is fulfilled. Cheers !!!

    Read the article

  • Increasing touch surface (#wp7dev)

    - by Laurent Bugnion
    When you design for Windows Phone 7 (or for any touch device, for that matter, and most especially small screens), you need to be very careful to give enough surface to your users’ fingers. It is easy to miss a touch on such small screens, and that can be horrifyingly frustrating. This is especially true when people are on the move, and trying to hit the control while walking and holding their device in one hand, or when the device is mounted in a car and vibrating with the engine. In my experience, a touch surface should be ideally minimum 60x60 pixels to be easy to activate on the Windows Phone 7 screen (which is, as we know, 800 pixels x 480 pixels). Ideally, I try to make my touch surfaces 80x80 pixels minimum. This causes a few design challenges of course. Using transparent backgrounds However, one thing is helping us tremendously: some surfaces can be made transparent, and yet react to touch. The secret is the following: If you have a panel that has a Null background (i.e. the Background is not set at all), then the empty surface does not react to touch. If however the Background is set to the Transparent color (or any color where the Alpha channel is set to 0), then it will react to touch. Setting a transparent background is easy. For example: <Grid Background="#00000000"> </Grid> or <Grid Background="Transparent"> </Grid> In C#: var grid = new Grid { Background = new SolidColorBrush( Colors.Transparent) }; Using negative margins Having a transparent background reactive to touch is a good start, but in addition, you must make sure that the surface is big enough for my clumsy fingers. One way to achieve that is to increase the transparent, touch-reactive surface, and reposition the element using negative margins. For example, consider the following UI. I changed the transparent background of the HyperlinkButton to Red, in order to visualize the touch surface. In this figure, the Settings HyperlinkButton is 105 pixels x 31 pixels. This is wide enough, but really small in height and easy to miss. To improve this, we can use negative margins, for instance: <HyperlinkButton Content="Settings" HorizontalAlignment="Right" VerticalAlignment="Bottom" Height="60" Margin="0,0,0,-15" /> Notice the usage of negative bottom margin to bring the HyperlinkButton back at the bottom of the main Grid’s first row, where it belongs. And the result is: Notice how the touch surface is much bigger than before. This makes the HyperlinkButton easier to reach, and improves the user experience. With the background set back to normal, the UI looks exactly the same, as it should: In summary: Remember to maximize the touch surface for your controls. Plan your design in consequence by reserving enough room around each control to allow their hit surface to be expanded as shown in this article. Do not cram too many controls in one page. If REALLY needed, use an additional page (or even better: use a Pivot control with multiple pivot items) for the controls that don’t fit on the first one. This should ensure a smoother user experience and improved touch behavior. Happy coding! Laurent   Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

    Read the article

  • Surface V2.0

    - by Dennis Vroegop
    It’s been quiet around here. And the reason for that is that it’s been quiet around Surface for a while. Now, a lot of people assume that when a product team isn’t making too much noise that must mean they stopped working on their product. Remember the PDC keynote in 2010? Just because they didn’t mention WPF there a lot of people had the idea that WPF was dead and abandoned for Silverlight. Of course, this couldn’t be farther from the truth. The same applies to Surface. While we didn’t hear much from the team in Redmond they were busy putting together the next version of the platform. And at the CES in January the world saw what they have been up to all along: Surface V2.0 as it’s commonly known. Of course, the product is still in development. It’s not here yet, we can’t buy one yet. However, more and more information comes available and I think this is a good time to share with you what it’s all about! The biggest change from an organizational point of view is that Microsoft decided to stop producing the hardware themselves. Instead, they have formed a partnership with Samsung who will manufacture the devices. This means that you as a buyer get the benefits of a large, worldwide supplier with all the services they can offer. Not that Microsoft didn’t do that before but since Surface wasn’t a ‘big’ product it was sometimes hard to get to the right people. The new device is officially called the “Samsung SUR 40 for Microsoft Surface” which is quite a mouthful. The software that runs the device is of course still coming from Microsoft. Let’s dive into the technical specs (note: all of this is preliminary, it’s still in the Alpha phase!): Audio out HDMI / StereoRCA / SPDIF / 2 times 3.5mm audio out jack Brightness 300 CD/m2 Communications 1GB Ethernet/802.11/Bluetooth Contrast Ratio 1:1000 CPU AMD Athlon X2 245e 2.9Ghz Dual Core Display Resolution Full HD 1080p 1920x1080 / 16:9 aspect ratio GPU AMD Radeon HD 6750 1GB GDDRS HDD 320 GB / 7200 RPM HDMI In / HDMI out Yes I/O Ports 4 USB, SD Card reader Operation System Embedded Windows 7 Professional 64 bits Panel Size 40” diagonal Protection Glass Gorilla Glass RAM 4 GB DD3 Weight / with standard legs 70.0 Kg / 154 lbs Weight / standalone 39.5 Kg / 87 lbs Height (without legs) 4 inch Contact points recognized > 50 Cool Factor Extremely   Ok, the last point is not official, but I do think it needs to be there. Let’s talk software. As noted, it runs Windows 7 Professional 64 bit, which means you can run Visual Studio 2010 on it. The software is going to be developed in WPF4.0 with the additional Surface SDK 2.0. It will contain all the things you’ve seen before plus some extra’s. They have taken some steps to align it more with the Surface Toolkit which you can download today, so if you do things right your software should be portable between a WPF4.0 Windows 7 Multi-touch app and the Surface v2 environment. It still uses infrared to detect contacts, so in that respect nothing much has changed conceptually. We still can differentiate between a finger, a tag or a blob. Of course, since the new platform has a much higher resolution (compared to the 1024x768 of the first version) you might need to look at your code again. I’ve seen a lot of applications on Surface that assume the old resolution and moving that to V2 is going to be some work. To be honest: as I am under NDA I cannot disclose much about the new software besides what I have told you here, but trust me: it’s going to blow people away. Now, the biggest question for me is: when can I get one? Until we can, have a look here: Tags van Technorati: surface,samsung,WPF

    Read the article

  • Encode two integers into colour values and compare them in a HLSL shader

    - by Ben Slinger
    I am writing a 2D point and click adventure game in Monogame, and I'd like to be able to create an image mask for every room which defines which parts of the background a character can walk behind, and at which Y value a character needs to be at for the background to be drawn above the character. I haven't done any shader work before but after doing some reading I thought the following solution should work: Create a mask for the room with different walk behind areas painted in a colour that defines the baseline Y value (Walk Behind Mask) Render all objects to a RenderTarget2D (Base Texture) Render all objects to a different RenderTarget2D, but changing every pixel of each object to a colour that defines its Y value (Position Mask) Pass these two textures plus the image mask into the shader, and for each pixel compare the colour of the image mask to the colour of the Position Mask to the Walk Behind Mask - if the Position Mask pixel is larger (thus lower on the screen and closer to the camera) than the Walk Behind Mask, draw the pixel from the Base Texture, otherwise draw a transparent pixel (allowing the background to show through). I've got it mostly working, but I'm having trouble packing and unpacking the Y values into colours and retrieving them correctly in the shader. Here are some code examples of how I'm doing it so far: (When drawing to the Position Mask RenderTarget2D) Color posColor = new Color(((int)Position.Y >> 16) & 255, ((int)Position.Y >> 8) & 255, (int)Position.Y & 255); So as far as I can tell, this should be taking the first 3 bytes of the position integer and encoding them into a 4 byte colour (ignoring the alpha as the 4th byte). This seems to work fine, as when my character is at Y = 600, the resulting Color from this is: {[Color: R=0, G=2, B=88, A=255, PackedValue=4283957760]}. I then have an area in my Walk Behind Mask that I only want the character to be displayed behind if his Y value is lower than 655, so I've painted it with R=0, G=2, B=143, A=255. Now, I think I have the shader OK as well, here's what I have: sampler BaseTexture : register(s0); sampler MaskTexture : register(s1); sampler PositionTexture : register(s2); float4 mask( float2 coords : TEXCOORD0 ) : COLOR0 { float4 color = tex2D(BaseTexture, coords); float4 maskColor = tex2D(MaskTexture, coords); float4 positionColor = tex2D(PositionTexture, coords); float maskCompare = (maskColor.r * pow(2,24)) + (maskColor.g * pow(2,16)) + (maskColor.b * pow(2,8)); float positionCompare = (positionColor.r * pow(2,24)) + (positionColor.g * pow(2,16)) + (positionColor.b * pow(2,8)); return positionCompare < maskCompare ? float4(0,0,0,0) : color; } technique Technique1 { pass NoEffect { PixelShader = compile ps_3_0 mask(); } } This isn't working, however - currently all characters are displayed behind the walk behind area, regardless of their Y value. I tried printing out some debug info by grabbing the pixel from both the Position Mask and the Walk Under Mask under the current mouse position, and it seems like maybe the colours aren't being rendered to the Position Mask correctly? When calculating the colour in that code above I'm getting R=0, G=2, B=88, A=255, but when I mouseover my character I get R=0, G=0, B=30, A=255. Any ideas what I'm doing wrong? It seems like maybe I'm losing some information when rendering to the RenderTarget2D, but I'm now knowledgeable enough to figure out what's happening. Also, I should probably ask, is this an efficient way to do this? Will there be a performance impact? Edit: Whoops, turns out there was a bug that I'd introduced myself, I was drawing out the Position Mask with the position Color, left over from some early testing I was doing. So this solution is working perfectly, though I'm still interested in whether this is an efficient solution performance wise.

    Read the article

  • Wireless is detected, but not connecting. Ethernet works. How to correct the wireless address?

    - by Lucas
    I am running Ubuntu 14.04 with cable internet, and my wireless is detected and connected, but I cannot connect to the internet. I know the problem is with my machine because other machines are connecting to the same router just fine. I can connect via ethernet just fine as well. Here are some notable tests: ping 192.168.0.105 works with 0% packet loss, but ping 192.168.0.1 has 100% packet loss. When I plug in my ethernet, ping 192.168.0.1 works with 0% packet loss. My wireless name is tg, and the router ip is 192.168.0.1 (where I can enter username and password). I suspect that I need to change my wireless address from 192.168.0.105 to 192.168.0.1. Any suggestions on how to proceed? extra info: [lucas@lucas-ThinkPad-W520]/home/lucas$ iwconfig eth0 no wireless extensions. lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"tg" Mode:Managed Frequency:2.462 GHz Access Point: 00:02:6F:83:F8:F4 Bit Rate=1 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=62/70 Signal level=-48 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:52 Invalid misc:166 Missed beacon:0 [lucas@lucas-ThinkPad-W520]/home/lucas$ ifconfig eth0 Link encap:Ethernet HWaddr f0:de:f1:b2:53:53 inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::f2de:f1ff:feb2:5353/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:980003 errors:0 dropped:0 overruns:0 frame:0 TX packets:498384 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1320506168 (1.3 GB) TX bytes:59780591 (59.7 MB) Interrupt:20 Memory:f3a00000-f3a20000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:21927 errors:0 dropped:0 overruns:0 frame:0 TX packets:21927 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1781719 (1.7 MB) TX bytes:1781719 (1.7 MB) wlan0 Link encap:Ethernet HWaddr 24:77:03:29:8f:dc inet addr:192.168.0.105 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::2677:3ff:fe29:8fdc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:11828 errors:0 dropped:0 overruns:0 frame:0 TX packets:15444 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4855662 (4.8 MB) TX bytes:2250585 (2.2 MB) [lucas@lucas-ThinkPad-W520]/home/lucas$ lspci -nn | grep 0280 03:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:4238] (rev 3e) [lucas@lucas-ThinkPad-W520]/home/lucas$ rfkill list 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: tpacpi_bluetooth_sw: Bluetooth Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no with ethernet unplugged: [lucas@lucas-ThinkPad-W520]/home/lucas$ route -n | grep UG 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0 with ethernet plugged in: [lucas@lucas-ThinkPad-W520]/home/lucas$ route -n | grep UG 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0 [lucas@lucas-ThinkPad-W520]/home/lucas$ nm-tool NetworkManager Tool State: connected (global) - Device: wlan0 [tg] ---------------------------------------------------------- Type: 802.11 WiFi Driver: iwlwifi State: connected Default: no HW Address: 24:77:03:29:8F:DC Capabilities: Speed: 52 Mb/s Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points (* = current AP) tatum: Infra, 40:8B:07:D8:A5:04, Freq 2437 MHz, Rate 54 Mb/s, Strength 42 W PA WPA2 ums: Infra, 00:20:A6:72:52:BF, Freq 2437 MHz, Rate 54 Mb/s, Strength 59 Alpha 40: Infra, 28:CF:E9:86:59:5D, Freq 5260 MHz, Rate 54 Mb/s, Strength 30 W PA WPA2 thepromiselan: Infra, 58:6D:8F:51:E5:54, Freq 2452 MHz, Rate 54 Mb/s, Strength 34 $ PA WPA2 xfinitywifi: Infra, 06:1D:D5:84:27:A0, Freq 2437 MHz, Rate 54 Mb/s, Strength 52 *tg: Infra, 00:02:6F:83:F8:F4, Freq 2462 MHz, Rate 54 Mb/s, Strength 73 W PA2 ums: Infra, 00:20:A6:A1:9F:25, Freq 2452 MHz, Rate 54 Mb/s, Strength 44 BRIAN-PC_Network:Infra, 20:AA:4B:DD:93:D6, Freq 2462 MHz, Rate 54 Mb/s, Strength 35 W PA2 HOME-C0F8: Infra, 44:32:C8:D2:C0:F8, Freq 2412 MHz, Rate 54 Mb/s, Strength 40 W PA WPA2 abcsexy: Infra, 28:28:5D:27:5D:85, Freq 2412 MHz, Rate 54 Mb/s, Strength 27 W PA WPA2 IPv4 Settings: Address: 192.168.0.105 Prefix: 24 (255.255.255.0) Gateway: 192.168.0.1 DNS: 192.168.0.1 - Device: eth0 [Wired connection 1] ------------------------------------------- Type: Wired Driver: e1000e State: connected Default: yes HW Address: F0:DE:F1:B2:53:53 Capabilities: Carrier Detect: yes Speed: 100 Mb/s Wired Properties Carrier: on IPv4 Settings: Address: 192.168.0.100 Prefix: 24 (255.255.255.0) Gateway: 192.168.0.1 DNS: 192.168.0.1

    Read the article

  • Mind Reading with the Raspberry Pi

    - by speakjava
    Mind Reading With The Raspberry Pi At JavaOne in San Francisco I did a session entitled "Do You Like Coffee with Your Dessert? Java and the Raspberry Pi".  As part of this I showed some demonstrations of things I'd done using Java on the Raspberry Pi.  This is the first part of a series of blog entries that will cover all the different aspects of these demonstrations. A while ago I had bought a MindWave headset from Neurosky.  I was particularly interested to see how this worked as I had had the opportunity to visit Neurosky several years ago when they were still developing this technology.  At that time the 'headset' consisted of a headband (very much in the Bjorn Borg style) with a sensor attached and some wiring that clearly wasn't quite production ready.  The commercial version is very simple and easy to use: there are two sensors, one which rests on the skin of your forehead, the other is a small clip that attaches to your earlobe. Typical EEG sensors used in hospitals require lots of sensors and they all need copious amounts of conductive gel to ensure the electrical signals are picked up.  Part of Neurosky's innovation is the development of this simple dry-sensor technology.  Having put on the sensor and turned it on (it powers off a single AAA size battery) it collects data and transmits it to a USB dongle plugged into a PC, or in my case a Raspberry Pi. From a hacking perspective the USB dongle is ideal because it does not require any special drivers for any complex, low level USB communication.  Instead it appears as a simple serial device, which on the Raspberry Pi is accessed as /dev/ttyUSB0.  Neurosky have published details of the command protocol.  In addition, the MindSet protocol document, including sample code for parsing the data from the headset, can be found here. To get everything working on the Raspberry Pi using Java the first thing was to get serial communications going.  Back in the dim distant past there was the Java Comm API.  Sadly this has grown a bit dusty over the years, but there is a more modern open source project that provides compatible and enhanced functionality, RXTXComm.  This can be installed easily on the Pi using sudo apt-get install librxtx-java.  Next I wrote a library that would send commands to the MindWave headset via the serial port dongle and read back data being sent from the headset.  The design is pretty simple, I used an event based system so that code using the library could register listeners for different types of events from the headset.  You can download a complete NetBeans project for this here.  This includes javadoc API documentation that should make it obvious how to use it (incidentally, this will work on platforms other than Linux.  I've tested it on Windows without any issues, just by changing the device name to something like COM4). To test this I wrote a simple application that would connect to the headset and then print the attention and meditation values as they were received from the headset.  Again, you can download the NetBeans project for that here. Oracle recently released a developer preview of JavaFX on ARM which will run on the Raspberry Pi.  I thought it would be cool to write a graphical front end for the MindWave data that could take advantage of the built in charts of JavaFX.  Yet another NetBeans project is available here.  Screen shots of the app, which uses a very nice dial from the JFxtras project, are shown below. I probably should add labels for the EEG data so the user knows which is the low alpha, mid gamma waves and so on.  Given that I'm not a neurologist I suspect that it won't increase my understanding of what the (rather random looking) traces mean. In the next blog I'll explain how I connected a LEGO motor to the GPIO pins on the Raspberry Pi and then used my mind to control the motor!

    Read the article

  • Get to Know a Candidate (3 of 25): Virgil Goode&ndash;Constitution Party

    - by Brian Lanham
    DISCLAIMER: This is not a post about “Romney” or “Obama”. This is not a post for whom I am voting. Information sourced for Wikipedia. Meet Virgil Goode of the Constitution Party Goode was served as a Republican member of the United States House of Representatives from 1997 to 2009. He represented the 5th congressional district of Virginia. Goode was born in Richmond, Virginia, the son of Alice Clara (née Besecker) and Virgil Hamlin Goode. He has spent most of his life in Rocky Mount. Goode graduated with a B.A. from the University of Richmond (Phi Beta Kappa) and with a J.D. from the University of Virginia School of Law. He also is a member of Lambda Chi Alpha Fraternity and served in the Army National Guard from 1969 to 1975. Goode grew up as a Democrat. He entered politics soon after graduating from law school. At the age of 27, he won a special election to the state Senate from a Southside district as an independent after the death of the Democratic incumbent. One of his major campaign focuses at the time was advocacy for the Equal Rights Amendment. Soon after being elected, he joined the Democrats. Goode wore his party ties very loosely. He became famous for his support of the tobacco industry, expressing his fear that "his elderly mother would be denied 'the one last pleasure' of smoking a cigarette on her hospital deathbed." He was an ardent defender of gun rights while being an enthusiastic supporter of L. Douglas Wilder, who later became the first elected black governor in the history of the United States. At the Democratic Party's state political convention in 1985, Goode nominated Wilder for lieutenant governor. However, while governor, Wilder cracked down on the sale of guns in the state. After the 1995 elections resulted in a 20–20 split between Democrats and Republicans in the State Senate, Goode seriously considered voting with the Republicans on organizing the chamber. Had he done so, the State Senate would have been under Republican control for the first time since Reconstruction (the Republicans ultimately won control outright in 1999). Goode's actions at the time "forced his party to share power with Republican lawmakers in the state legislature," which further upset the Democratic Party. Goode is on the ballot in CA, FL, ID, IO, LA, MI, MN, MS, MI, NJ, NM, NY, NV, ND, OH, SC, SD, TN, UT, VA, WA, WI, WY.  He is a write-in candidate in CA, CT, DC, GA, IL, IN, ME, MD, MA, MO, NC, TX, VT, WV Constitution Party This party was founded as the “U.S. Taxpayers’ Party” and considers itself conservative. The party's platform is predicated on the principles of the nation's founding documents. The party puts a large focus on immigration, calling for stricter penalties towards illegal immigrants and a moratorium on legal immigration until all federal subsidies to immigrants are discontinued.The party absorbed the American Independent Party, originally founded for George Wallace's 1968 presidential campaign. The American Independent Party of California has been an affiliate of the Constitution Party since its founding; however, current party leadership is disputed and the issue is in court to resolve this conflict. The Constitution Party has some substantial support from the Christian Right and in 2010 achieved major party status in Colorado. Learn more about Virgil Goode and Constitution Party on Wikipedia.

    Read the article

  • rotate player based off of joystick

    - by pengume
    Hey everyone I have this game that i am making in android and I have a touch screen joystick that moves the player around based on the joysticks position. I cant figure out how to also get the player to rotate at the same angle of the joystick. so when the joystick is to the left the players bitmap is rotated to the left as well. Maybe someone here has some sample code I could look at here is the joysticks class that I am using. `public class GameControls implements OnTouchListener { public float initx = DroidzActivity.screenWidth - 45; //255; // 320 og 425 public float inity = DroidzActivity.screenHeight - 45;//425; // 480 og 267 public Point _touchingPoint = new Point( DroidzActivity.screenWidth - 45, DroidzActivity.screenHeight - 45); public Point _pointerPosition = new Point(DroidzActivity.screenWidth - 100, DroidzActivity.screenHeight - 100); // ogx 220 ogy 150 private Boolean _dragging = false; private boolean attackMode = false; @Override public boolean onTouch(View v, MotionEvent event) { update(event); return true; } private MotionEvent lastEvent; public boolean ControlDragged; private static double angle; public void update(MotionEvent event) { if (event == null && lastEvent == null) { return; } else if (event == null && lastEvent != null) { event = lastEvent; } else { lastEvent = event; } // drag drop if (event.getAction() == MotionEvent.ACTION_DOWN) { if ((int) event.getX() > 0 && (int) event.getX() < 50 && (int) event.getY() > DroidzActivity.screenHeight - 160 && (int) event.getY() < DroidzActivity.screenHeight - 0) { setAttackMode(true); } else { _dragging = true; } } else if (event.getAction() == MotionEvent.ACTION_UP) { if(isAttackMode()){ setAttackMode(false); } _dragging = false; } if (_dragging) { ControlDragged = true; // get the pos _touchingPoint.x = (int) event.getX(); _touchingPoint.y = (int) event.getY(); // Log.d("GameControls", "x = " + _touchingPoint.x + " y = " //+ _touchingPoint.y); // bound to a box if (_touchingPoint.x < DroidzActivity.screenWidth - 75) { // og 400 _touchingPoint.x = DroidzActivity.screenWidth - 75; } if (_touchingPoint.x > DroidzActivity.screenWidth - 15) {// og 450 _touchingPoint.x = DroidzActivity.screenWidth - 15; } if (_touchingPoint.y < DroidzActivity.screenHeight - 75) {// og 240 _touchingPoint.y = DroidzActivity.screenHeight - 75; } if (_touchingPoint.y > DroidzActivity.screenHeight - 15) {// og 290 _touchingPoint.y = DroidzActivity.screenHeight - 15; } // get the angle setAngle(Math.atan2(_touchingPoint.y - inity, _touchingPoint.x - initx) / (Math.PI / 180)); // Move the ninja in proportion to how far // the joystick is dragged from its center _pointerPosition.y += Math.sin(getAngle() * (Math.PI / 180)) * (_touchingPoint.x / 70); // og 180 70 _pointerPosition.x += Math.cos(getAngle() * (Math.PI / 180)) * (_touchingPoint.x / 70); // make the pointer go thru if (_pointerPosition.x > DroidzActivity.screenWidth) { _pointerPosition.x = 0; } if (_pointerPosition.x < 0) { _pointerPosition.x = DroidzActivity.screenWidth; } if (_pointerPosition.y > DroidzActivity.screenHeight) { _pointerPosition.y = 0; } if (_pointerPosition.y < 0) { _pointerPosition.y = DroidzActivity.screenHeight; } } else if (!_dragging) { ControlDragged = false; // Snap back to center when the joystick is released _touchingPoint.x = (int) initx; _touchingPoint.y = (int) inity; // shaft.alpha = 0; } } public void setAttackMode(boolean attackMode) { this.attackMode = attackMode; } public boolean isAttackMode() { return attackMode; } public void setAngle(double angle) { this.angle = angle; } public static double getAngle() { return angle; } }` I should also note that the player has animations based on when he is moving or attacking.

    Read the article

  • Flash AS3: (VideoEvent.COMPLETE, completePlay) - listener is triggered before video is completed

    - by Tevi
    Hello, I have a flash video using the standard FLV Playback component that comes with Flash. I'm using ActionScript 3 to modify the appearance and set up an event listener. I've set it up to go to a new URL using "externalInterface" when the video completes play. The URL is set in a variable using SWFObject. On only a few instances (3 people out of 50 - tested using Amazon Turk), people reported being taken directly to the new url, before the video even started playing. It's difficult to repeat the issue, but it did happen to me once. It doesn't have anything to do with cache, since it has been reported on people going to the url for the first time. Here's the url to the video: http://www.partstown.com/is-bin/INTERSHOP.enfinity/WFS/Reedy-PartsTown-Site/en_US/-/USD/ViewStaticPage-UnFramed?page=tourthetown Here's the code: import flash.external.*; import fl.video.*; var myVideo:FLVPlayback = new FLVPlayback(); var theUrl:String = this.loaderInfo.parameters.urlName; var theScript:String = this.loaderInfo.parameters.scriptName; myVideo.source = this.loaderInfo.parameters.videoPath;//"partstown.flv"; myVideo.skin = this.loaderInfo.parameters.skinPath;//"SkinUnderPlayStopSeekMuteVol.swf" myVideo.skinBackgroundColor = 0xAEBEFB; myVideo.skinBackgroundAlpha = 0.5; myVideo.width = 939; myVideo.height = 660; myVideo.addEventListener(VideoEvent.COMPLETE, completePlay); function completePlay(e:VideoEvent):void { myVideo.alpha=0.2; ExternalInterface.call(theScript); } addChild(myVideo); Why would the listener be triggered before the event complete? How can I fix it? Thanks!

    Read the article

  • Javascript or CSS hover not working in Safari and Chrome

    - by PAZtech
    I have a problem with a script for a image gallery. The problem seems to only occur on Safari and Chrome, but if I refresh the page I get it to work correctly - weird! Correct function: The gallery has a top bar, which if you hover over it, it will display a caption. Below sits the main image. At the bottom there is another bar that is a reversal of the top bar. When you hover over it, it will display thumbnails of the gallery. The problem: In Safari and Chrome, the thumbnail holder will not display. In fact, it doesn't even show it as an active item (or a rollover). But oddly enough, if you manually refresh the page it begins to work correctly for the rest of the time you view the page. Once you have left the page and return the same error occurs again and you have to go through the same process. Here's one of the pages to look at: link text Here's the CSS: #ThumbsGutter { background: url(../Images/1x1.gif); background: url(/Images/1x1.gif); height: 105px; left: 0px; position: absolute; top: 0px; width: 754px; z-index: 2; } #ThumbsHolder { display: none; } #ThumbsTable { left: 1px; } #Thumbs { background-color: #000; width: 703px; } #Thumbs ul { list-style: none; margin: 0; padding: 0; } #Thumbs ul li { display: inline; } .Thumbs ul li a { border-right: 1px solid #fff; border-top: 1px solid #fff; float: left; left: 1px; } .Thumbs ul li a img { filter: alpha(opacity=50); height: 104px; opacity: .5; width: 140px; } .Thumbs ul li a img.Hot { filter: alpha(opacity=100); opacity: 1; } Here is the javascript: //Variables var globalPath = ""; var imgMain; var gutter; var holder; var thumbs; var loadingImage; var holderState; var imgCount; var imgLoaded; var captionHolder; var captionState = 0; var captionHideTimer; var captionHideTime = 500; var thumbsHideTimer; var thumbsHideTime = 500; $(document).ready(function() { //Load Variables imgMain = $("#MainImage"); captionHolder = $("#CaptionHolder"); gutter = $("#ThumbsGutter"); holder = $("#ThumbsHolder"); thumbs = $("#Thumbs"); loadingImage = $("#LoadingImageHolder"); //Position Loading Image loadingImage.centerOnObject(imgMain); //Caption Tab Event Handlers $("#CaptionTab").mouseover(function() { clearCaptionHideTimer(); showCaption(); }).mouseout(function() { setCaptionHideTimer(); }); //Caption Holder Event Handlers captionHolder.mouseenter(function() { clearCaptionHideTimer(); }).mouseleave(function() { setCaptionHideTimer(); }); //Position Gutter if (jQuery.browser.safari) { gutter.css("left", imgMain.position().left + "px").css("top", ((imgMain.offset().top + imgMain.height()) - 89) + "px"); } else { gutter.css("left", imgMain.position().left + "px").css("top", ((imgMain.offset().top + imgMain.height()) - 105) + "px"); } //gutter.css("left", imgMain.position().left + "px").css("top", ((imgMain.offset().top + imgMain.height()) - 105) + "px"); //gutter.css("left", imgMain.offset().left + "px").css("top", ((imgMain.offset().top + imgMain.height()) - gutter.height()) + "px"); //Thumb Tab Event Handlers $("#ThumbTab").mouseover(function() { clearThumbsHideTimer(); showThumbs(); }).mouseout(function() { setThumbsHideTimer(); }); //Gutter Event Handlers gutter.mouseenter(function() { //showThumbs(); clearThumbsHideTimer(); }).mouseleave(function() { //hideThumbs(); setThumbsHideTimer(); }); //Next/Prev Button Event Handlers $("#btnPrev").mouseover(function() { $(this).attr("src", globalPath + "/Images/GalleryLeftButtonHot.jpg"); }).mouseout(function() { $(this).attr("src", globalPath + "/Images/GalleryLeftButton.jpg"); }); $("#btnNext").mouseover(function() { $(this).attr("src", globalPath + "/Images/GalleryRightButtonHot.jpg"); }).mouseout(function() { $(this).attr("src", globalPath + "/Images/GalleryRightButton.jpg"); }); //Load Gallery //loadGallery(1); }); function loadGallery(galleryID) { //Hide Holder holderState = 0; holder.css("display", "none"); //Hide Empty Gallery Text $("#EmptyGalleryText").css("display", "none"); //Show Loading Message $("#LoadingGalleryOverlay").css("display", "inline").centerOnObject(imgMain); $("#LoadingGalleryText").css("display", "inline").centerOnObject(imgMain); //Load Thumbs thumbs.load(globalPath + "/GetGallery.aspx", { GID: galleryID }, function() { $("#TitleHolder").html($("#TitleContainer").html()); $("#DescriptionHolder").html($("#DescriptionContainer").html()); imgCount = $("#Thumbs img").length; imgLoaded = 0; if (imgCount == 0) { $("#LoadingGalleryText").css("display", "none"); $("#EmptyGalleryText").css("display", "inline").centerOnObject(imgMain); } else { $("#Thumbs img").load(function() { imgLoaded++; if (imgLoaded == imgCount) { holder.css("display", "inline"); //Carousel Thumbs thumbs.jCarouselLite({ btnNext: "#btnNext", btnPrev: "#btnPrev", mouseWheel: true, scroll: 1, visible: 5 }); //Small Image Event Handlers $("#Thumbs img").each(function(i) { $(this).mouseover(function() { $(this).addClass("Hot"); }).mouseout(function() { $(this).removeClass("Hot"); }).click(function() { //Load Big Image setImage($(this)); }); }); holder.css("display", "none"); //Load First Image var img = new Image(); img.onload = function() { imgMain.attr("src", img.src); setCaption($("#Image1").attr("alt")); //Hide Loading Message $("#LoadingGalleryText").css("display", "none"); $("#LoadingGalleryOverlay").css("display", "none"); } img.src = $("#Image1").attr("bigimg"); } }); } }); } function showCaption() { if (captionState == 0) { $("#CaptionTab").attr("src", globalPath + "/Images/CaptionTabHot.jpg"); captionHolder.css("display", "inline").css("left", imgMain.position().left + "px").css("top", imgMain.position().top + "px").css("width", imgMain.width() + "px").effect("slide", { "direction": "up" }, 500, function() { captionState = 1; }); } } function hideCaption() { if (captionState == 1) { captionHolder.toggle("slide", { "direction": "up" }, 500, function() { $("#CaptionTab").attr("src", globalPath + "/Images/CaptionTab.jpg"); captionState = 0; }); } } function setCaptionHideTimer() { captionHideTimer = window.setTimeout(hideCaption,captionHideTime); } function clearCaptionHideTimer() { if(captionHideTimer) { window.clearTimeout(captionHideTimer); captionHideTimer = null; } } function showThumbs() { if (holderState == 0) { $("#ThumbTab").attr("src", globalPath + "/Images/ThumbTabHot.jpg"); holder.effect("slide", { "direction": "down" }, 500, function() { holderState = 1; }); } } function hideThumbs() { if (holderState == 1) { if (jQuery.browser.safari) { holder.css("display", "none"); $("#ThumbTab").attr("src", globalPath + "/Images/ThumbTab.jpg"); holderState = 0; } else { holder.toggle("slide", { "direction": "down" }, 500, function() { $("#ThumbTab").attr("src", globalPath + "/Images/ThumbTab.jpg"); holderState = 0; }); } } } function setThumbsHideTimer() { thumbsHideTimer = window.setTimeout(hideThumbs,thumbsHideTime); } function clearThumbsHideTimer() { if(thumbsHideTimer) { window.clearTimeout(thumbsHideTimer); thumbsHideTimer = null; } } function setImage(image) { //Show Loading Image loadingImage.css("display", "inline"); var img = new Image(); img.onload = function() { //imgMain.css("background","url(" + img.src + ")").css("display","none").fadeIn(250); imgMain.attr("src", img.src).css("display", "none").fadeIn(250); setCaption(image.attr("alt")); //Hide Loading Image loadingImage.css("display", "none"); }; img.src = image.attr("bigimg"); } function setCaption(caption) { $("#CaptionText").html(caption); //alert($("#CaptionText").html()); /* if (caption.length 0) { $("#CaptionText") .css("display", "inline") .css("left", imgMain.position().left + "px") .css("top", imgMain.position().top + "px") .css("width", imgMain.width() + "px") .html(caption); $("#CaptionOverlay").css("display", "inline") .css("height", $("#CaptionText").height() + 36 + "px") .css("left", imgMain.position().left + "px") .css("top", imgMain.position().top + "px") .css("width", imgMain.width() + "px"); } else { $("#CaptionText").css("display", "none"); $("#CaptionOverlay").css("display", "none"); } */ } Please if anyone could help, it would be greatly appreciated! Thanks in advance. Justin

    Read the article

  • Subclassing UINavigationBar ... how do I use it in UINavigationController?

    - by funkadelic
    Hi, I wanted to subclass UINavigationBar (to set a custom background image & text color) and use that for all the navigation bars in my app. Looking at the API docs for UINavigationController, it looks like navigationBar is read-only: @property(nonatomic, readonly) UINavigationBar *navigationBar Is there a way to actually use a custom UINavigationBar in my UIViewControllers? I know that other apps have done custom navigation bars, like flickr: Here is my UINavigationBar subclass: #import <UIKit/UIKit.h> @interface MyNavigationBar : UINavigationBar <UINavigationBarDelegate> { } @end the implementation #import "MyNavigationBar.h" @implementation MyNavigationBar - (id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { // Initialization code } return self; } - (void)drawRect:(CGRect)rect { // override the standard background with our own custom one UIImage *image = [[UIImage imageNamed:@"navigation_bar_bgd.png"] retain]; [image drawInRect:rect]; [image release]; } #pragma mark - #pragma mark UINavigationDelegate Methods - (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated{ // use the title of the passed in view controller NSString *title = [viewController title]; // create our own UILabel with custom color, text, etc UILabel *titleView = [[UILabel alloc] init]; [titleView setFont:[UIFont boldSystemFontOfSize:18]]; [titleView setTextColor:[UIColor blackColor]]; titleView.text = title; titleView.backgroundColor = [UIColor clearColor]; [titleView sizeToFit]; viewController.navigationItem.titleView = titleView; [titleView release]; viewController.navigationController.navigationBar.tintColor = [UIColor colorWithRed:0.1 green:0.2 blue:0.3 alpha:0.8]; } - (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated{ } - (void)dealloc { [super dealloc]; } @end I know that I can use a category to change the background image, but i still want to be able to set the text color of the navigation bar title @implementation UINavigationBar (CustomImage) - (void)drawRect:(CGRect)rect { UIImage *image = [UIImage imageNamed: @"navigation_bar_bgd.png"]; [image drawInRect:CGRectMake(0, 0, self.frame.size.width, self.frame.size.height)]; } @end any suggestions or other solutions? I basically want to create a light background and dark text like Flickr's app navigation bars

    Read the article

  • How to exclude jars generated by maven war plugin ?

    - by Jacques René Mesrine
    Because of transitive dependencies, my wars are getting populated by xml-apis, xerces jars. I tried following the instructions on the reference page for maven-war-plugin but it is not working. <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <configuration> <packagingExcludes>WEB-INF/lib/xalan-2.6.0.jar,WEB-INF/lib/xercesImpl-2.6.2.jar,WEB-INF/lib/xml-apis-1.0.b2.jar,WEB-INF/lib/xmlParserAPIs-2.6.2.jar</packagingExcludes> <webXml>${basedir}/src/main/webapp/WEB-INF/web.xml</webXml> <warName>project1</warName> <warSourceDirectory>src/main/webapp</warSourceDirectory> </configuration> </plugin> What am I doing wrong ? If it matters, I discovered that the maven-war-plugin I'm using is at version 2.1-alpha-1

    Read the article

  • properties-maven-plugin: Error loading properties-file

    - by yournamehere
    I want to extract all the properties from my pom.xml into a properties-file. These are the common properties like dependency-versions, plugin-versions and directories. I'm using the properties-maven-plugin, but its not working as i want it to. The essential part of my pom.xml: <plugin> <groupId>org.codehaus.mojo</groupId> <artifactId>properties-maven-plugin</artifactId> <version>1.0-alpha-1</version> <executions> <execution> <phase>initialize</phase> <goals> <goal>read-project-properties</goal> </goals> <configuration> <files> <file>${basedir}/pom.properties</file> </files> </configuration> </execution> </executions> </plugin> Now when i run "mvn properties:read-project-properties" i get the following error: [INFO] One or more required plugin parameters are invalid/missing for 'properties:read-project-properties' [0] Inside the definition for plugin 'properties-maven-plugin' specify the following: <configuration> ... <files>VALUE</files> </configuration>. The pom.properties-file is located in the same dir as the pom.xml. What can i do to let the properties-maven-plugin read my properties-file?

    Read the article

  • Flex 3.5.0; Update ComboBox display list upon dataprovider change

    - by Gabriel Poama-Neagra
    Hello, I have two related ComboBoxes ( continents, and countries ). When the continents ComboBox changes I request a XML from a certain URL. When I receive that XML i change the DataProvider for the countries ComboBox, like this: public function displayCountryArray( items:XMLList ):void { this.resellersCountryLoader.alpha = 0; this.resellersCountry.dataProvider = items; this.resellersCountry.dispatchEvent( new ListEvent( ListEvent.CHANGE ) ); } I dispatch the ListEvent.CHANGE because I use it to change another ComboBox so please ignore that (and the 1st line ). So, my problem is this: I select "ASIA" from the first continents, then the combobox DATA get's updated ( I can see that because the first ITEM is an item with the label '23 countries' ). I click the combo then I can see the countries. NOW, I select "Africa", the first item is displayed, with the ComboBox being closed, then when I click it, the countries are still the ones from Asia. Anyway, if I click an Item in the list, then the list updates correctly, and also, it has the correct info ( as I said it affects other ComboBoxes ). SO the only problem is that the display list does not get updated. In this function I tried these approaches Converting XMLList to XMLCollection and even ArrayCollection Adding this.resellersCountry.invalidateDisplayList(); Triggering events like DATA_CHANGE and UPDATE_COMPLETE I know they don't make much sense, but I got a little desperate. Please note that when I used 3.0.0 SDK this did not happen. Sorry if I'm stupid, but the flex events are killing me.

    Read the article

  • NETCF - Optimized Repaint (onPaint)

    - by Nullstr1ng
    Hi Guys, I want to ask for suggestions on how to optimize a repaint in Compact Framework? GetHashCode() didn't help because it always return a different hash code. Anyway, I have a program which you can drag and resize an object in run time. This object is a transparent object and it has a PNG image which also dynamically resize relative to object client size. Though I noticed, (e.g. I have 4 transparent object and I'm dragging or resizing one) all 4 of them triggers OnPaintBackground even if the 3 are not moving. Another one when am just tapping on the one object .. it sill triggers onPaintBacground(). Anyway, I don't have a problem when this events get triggered. What I like to do is optimization and that means I only have to repaint the object when it's necessary. Can you guys please give a suggestions? here's my pseudo C# code Bitmap _backBuff; onResize() { if(_backBuff != null) _backBuff.Dispose(); _backBuff = new Bitmap(ClientSize.Width, ClientSize.Height); Invalidate(); } onPaintBackground(e) /*have to use onPaintBackground because MSDN said it's faster*/ { using(Graphics g = Graphics.FromImage(_backBuff)) { g.Clear(Color.Black); // draw background ....some interface calling here ....and paint the background // draw alpha PNG .. get hDc .. paint PNG .. release hDc } e.Graphics.DrawImage(_backBuff,0,0); } Thanks in advance.

    Read the article

  • Android -- How to position View off-screen?

    - by borg17of20
    Hello all, I'm trying to animate a simple ImageView in my application and I want it to slide in from the bottom of the screen and come to a resting position where the top 50px of the view is off the top of the screen (e.g. the final position of the ImageView should be -50px in X). I've tried to use the AbsoluteLayout to do this, but this actually cuts off the top 50px of the ImageView such that the top 50px is never rendered. I need to have the top 50px of the ImageView visible/rendered while it's animating and then simply have it come to a rest slightly off-screen. I hope I've explained that well enough. Here is what I'm currently using as a layout and the slide-in animation (this currently doesn't render the top 50px of the ImageView): Layout: <?xml version="1.0" encoding="utf-8"?> <AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_height="fill_parent" android:layout_width="fill_parent" android:id="@+id/QuickPlayClipLayout"> <ImageView android:id="@+id/Clip" android:background="@drawable/clip" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_y="-50dp"> </ImageView> </AbsoluteLayout> Animation: <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <translate android:fromYDelta="100%p" android:toYDelta="0" android:duration="1000"/> <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="1000" /> </set> Thanks in advance.

    Read the article

  • help with grouping and sorting for TreeView in xaml

    - by danhotb
    I am having problems getting my head around grouping and sorting in xaml and hope someone can get me straightened out! I have creaed an xml file from a tree of files and folders (just like windows explorer) that can be serveral levels deep. I have bound a TreeView control to an xml datasource and it works great! It sorts everything alphabetically but ... I would like it to sort all folders first then all files, rather than folders listed with files, as it does now. the xml : if you load this to a treeviw it will display the two files before the folder because they are first in alpha-order. here is my code: <!-- This will contain the XML-data. --> <XmlDataProvider x:Key="xmlDP" XPath="*"> <x:XData> <Select_Project /> </x:XData> </XmlDataProvider> <!-- This HierarchicalDataTemplate will visualize all XML-nodes --> <HierarchicalDataTemplate DataType="project" ItemsSource ="{Binding}"> <TextBlock Text="{Binding XPath=@name}" /> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="folder" ItemsSource ="{Binding}"> <TextBlock Text="{Binding XPath=@name}" /> </HierarchicalDataTemplate> <HierarchicalDataTemplate DataType="file" ItemsSource ="{Binding}"> <TextBlock Text="{Binding XPath=@name}" /> </HierarchicalDataTemplate> <CollectionViewSource x:Key="projectView" Source="{StaticResource xmlDP}"> <CollectionViewSource.SortDescriptions> <!-- ADD SORT DESCRIPTION HERE --> </CollectionViewSource.SortDescriptions> </CollectionViewSource> <TreeView Margin="11,79.992,18,19.089" Name="tvProject" BorderThickness="1" FontSize="12" FontFamily="Verdana"> <TreeViewItem ItemsSource="{Binding Source={StaticResource xmlDP}, XPath=*}" Header="Project"/> </TreeView>

    Read the article

  • error when plotting log'd array in matplotlib/scipy/numpy

    - by user248237
    I have two arrays and I take their logs. When I do that and try to plot their scatter plot, I get this error: File "/Library/Python/2.6/site-packages/matplotlib-1.0.svn_r7892-py2.6-macosx-10.6-universal.egg/matplotlib/pyplot.py", line 2192, in scatter ret = ax.scatter(x, y, s, c, marker, cmap, norm, vmin, vmax, alpha, linewidths, faceted, verts, **kwargs) File "/Library/Python/2.6/site-packages/matplotlib-1.0.svn_r7892-py2.6-macosx-10.6-universal.egg/matplotlib/axes.py", line 5384, in scatter self.add_collection(collection) File "/Library/Python/2.6/site-packages/matplotlib-1.0.svn_r7892-py2.6-macosx-10.6-universal.egg/matplotlib/axes.py", line 1391, in add_collection self.update_datalim(collection.get_datalim(self.transData)) File "/Library/Python/2.6/site-packages/matplotlib-1.0.svn_r7892-py2.6-macosx-10.6-universal.egg/matplotlib/collections.py", line 153, in get_datalim offsets = transOffset.transform_non_affine(offsets) File "/Library/Python/2.6/site-packages/matplotlib-1.0.svn_r7892-py2.6-macosx-10.6-universal.egg/matplotlib/transforms.py", line 1924, in transform_non_affine self._a.transform(points)) File "/Library/Python/2.6/site-packages/matplotlib-1.0.svn_r7892-py2.6-macosx-10.6-universal.egg/matplotlib/transforms.py", line 1420, in transform return affine_transform(points, mtx) ValueError: Invalid vertices array. the code is simply: myarray_x = log(my_array[:, 0]) myarray_y = log(my_array[:, 1]) plt.scatter(myarray_x, myarray_y) any idea what could be causing this? thanks.

    Read the article

  • iPhone SDK - UITabBarConroller and custom design

    - by Cheryl
    Hi I am having a problem with my tab bars at the bottom of the screen. The designer has decided it should be one colour (not black) when inactive and another colour when active. I have worked out how to replace the main colour of the tabbar by subclassing UITabBarController and doing this:- - (void)viewDidLoad { [super viewDidLoad]; CGRect frame = CGRectMake(0.0, 0, self.view.bounds.size.width, self.view.bounds.size.height); UIView *v = [[UIView alloc] initWithFrame:frame]; //get percentage values from digitalcolour meter and enter as decimals v.backgroundColor = [UIColor colorWithRed:.0 green:.706 blue:.863 alpha:1]; [tabBar1 insertSubview:v atIndex:0]; [v release]; } I just can't see how to make the active tabbar be a separate colour when it is selected. I have tried subclassing UITabBarItem but there doesn't seem to be any property for me to set to change the background colour of the tab. They also want to have the icons on the tab bar not be blue and grey and I can't figure out how to do that. In the ViewController for one tab bar item I have put this into viewdidload:- myTabBarItem *tabItem = [[myTabBarItem alloc] initWithTitle:@"listOOO" image:[UIImage imageNamed:@"starcopy.png"] tag:1]; tabItem.customHighlightedImage=[UIImage imageNamed:@"starcopy.png"]; self.tabBarItem=tabItem; [tabItem release]; tabItem=nil; and in my subclass of UITabBarItem I have put this:- -(UIImage *) selectedImage{ return self.customHighlightedImage; } Only I don't see the icon at all. If I put this into the viewDidLoad of my subclass of UITabBarController:- for (UITabBarItem *item in tabBar1.items){ item.image = [UIImage imageNamed:@"starcopy.png"]; } Then all my tab bars have the icon but they are blue (and grey when inactive) how would I get them not to become blue but stay their original colour? If you have any light on this problem please help as I have been banking my head on the wall for 2 days now and it's getting me down. Thanks in advance Cheryl

    Read the article

  • iPhone:How to set background image for tablerow cell?

    - by user187532
    Hello all, I want to put some background image for TableView row cell. I am using the following code: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { ..................... ................... UIImage * backgroundImage = [UIImage imageNamed:@"cell.png"]; UIColor *backgroundColor = [[UIColor alloc] initWithPatternImage:backgroundImage]; cell.opaque = NO; cell.contentView.opaque = NO; cell.backgroundColor = [UIColor clearColor]; cell.backgroundColor = backgroundColor; //cell.contentView.backgroundColor = [UIColor clearColor]; //cell.contentView.backgroundColor = backgroundColor; } But it is not giving the background image properly. Could someone guide me what is the proper ways of setting background image for a tableview row? Note: I'm also setting background image for my TableView as well using the below code: UIImage * backgroundImage = [UIImage imageNamed:@"Tablebackground.png"]; UIColor *backgroundColor = [[UIColor alloc] initWithPatternImage:backgroundImage]; self.myTableView.backgroundColor = [UIColor clearColor]; self.myTableView.alpha = 0.9; self.myTableView.backgroundColor = backgroundColor; I don't observe any problem for tableview background. Only thing here is, tableview background image is not being static, when scrolling happening, image is also scrolling. But i want to know first how to set background image for Tableview row cell? Thank you.

    Read the article

  • WPF 3D extrude "a bitmap"

    - by Bgnt44
    Hi, I'm looking for a way to simulate a projector in wpf 3D : i've these "in" parameters : beam shape : a black and white bitmap file beam size ( ex : 30 °) beam color beam intensity ( dimmer ) projector position (x,y,z) beam position (pan(x),tilt(y) relative to projector) First i was thinking of using light object but it seem that wpf can't do that So, now i think that i can make for each projector a polygon from my bitmap... First i need to convert the black and white bitmap to vector. Only Simple shape ( bubble, line,dot,cross ...) Is there any WPF way to do that ? Or maybe a external program file (freeware); then i need to build the polygon, with the shape of the converted bitmap , color , size , orientation in parameter. i don't know how can i defined the lenght of the beam , and if it can be infiny ... To show the beam result, i think of making a room ( floor , wall ...) and beam will end to these wall... i don't care of real light render ( dispersion ...) but the scene render has to be real time and at least 15 times / second (with probably from one to 100 projectors at the same time), information about position, angle,shape,color will be sent for each render... Well so, i need sample for that, i guess that all of these things could be useful for other people If you have sample code : Convert Bitmap to vector Extrude vectors from one point with a angle parameter until collision of a wall Set x,y position of the beam depend of the projector position Set Alpha intensity of the beam, color Maybe i'm totally wrong and WPF is not ready for that , so advise me about other way ( xna,d3D ) with sample of course ;-) Thanks you

    Read the article

  • Java JUnit: The method X is ambiguous for type Y

    - by Rosarch
    I had some tests working fine. Then, I moved it to a different package, and am now getting errors. Here is the code: import static org.junit.Assert.*; import java.util.HashSet; import java.util.Map; import java.util.Set; import org.jgrapht.Graphs; import org.jgrapht.WeightedGraph; import org.jgrapht.graph.DefaultWeightedEdge; import org.jgrapht.graph.SimpleWeightedGraph; import org.junit.*; @Test public void testEccentricity() { WeightedGraph<String, DefaultWeightedEdge> g = generateSimpleCaseGraph(); Map<String, Double> eccen = JGraphtUtilities.eccentricities(g); assertEquals(70, eccen.get("alpha")); assertEquals(80, eccen.get("l")); assertEquals(130, eccen.get("l-0")); assertEquals(100, eccen.get("l-1")); assertEquals(90, eccen.get("r")); assertEquals(120, eccen.get("r-0")); assertEquals(130, eccen.get("r-1")); } The error message is this: The method assertEquals(Object, Object) is ambiguous for the type JGraphtUtilitiesTest How can I fix this? Why did this problem occur as I moved the class to a different package?

    Read the article

  • Python: fetching SVG file using urllib is returning binary when I need ASCII

    - by Drew Dara-Abrams
    I'm using urllib (in Python) to fetch an SVG file: import urllib urllib.urlopen('http://alpha.vectors.cloudmade.com/BC9A493B41014CAABB98F0471D759707/-122.2487,37.87588,-122.265823,37.868054?styleid=1&viewport=400x231').read() which produces output of the sort: xb6\xf6\x00\xb3\xfb2\xff\xda\xc5\xf2\xc2\x14\xef\xcd\x82\x0b\xdbU\xb0\x81\xcaF\xd8\x1a\xf6\xdf[i)\xba\xcf\x80\xab\xd6\x8c\xe3l_\xe7\n\xed2,\xbdm\xa0_|\xbb\x12\xff\xb6\xf8\xda\xd9\xc3\xd9\t\xde\x9a\xf8\xae\xb3T\xa3\r`\x8a\x08!T\xfb8\x92\x95\x0c\xdd\x8b!\x02P\xea@\x98\x1c^\xc7\xda\\\xec\xe3\xe1\xbe,0\xcd\xbeZ~\x92\xb3\xfa\xdd\xfcbyu\xb8\x83\xbb\xbdS\x0f\x82\x0b\xfe\xf5_\xdawn\xff\xef_\xff\xe5\xfa\x1f?\xbf\xffoZ\x0f\x8b\xbfV\xf4\x04\x00' when I was expecting more like this: <?xml version='1.0' encoding='UTF-8'?> <svg xmlns="http://www.w3.org/2000/svg" xmlns:cm="http://cloudmade.com/" width="400" height="231"> <rect width="100%" height="100%" fill="#eae8dd" opacity="1"/> <g transform="scale(0.209849975856)"> <g transform="translate(13610569, 4561906)" flood-opacity="0.1" flood-color="grey"> <path d="M -13610027.720000000670552 -4562403.660000000149012 I guess this is an issue of binary vs. ASCII. Can anyone help me (a Python newbie) with the appropriate conversion so that I can get on with parsing and manipulating the SVG code?

    Read the article

  • Implementing a customized drawable in Android

    - by Girish
    Hi , I was trying to get hold of 2D graphics in Android. As a example i want to implement a custom drawable and show it in my Activity I have defined a customized drawable by extending from Android drawable as mentioned below myDrawable extends Drawable { private static final String TAG = myDrawable.class.getSimpleName(); private ColorFilter cf; @Override public void draw(Canvas canvas) { //First you define a colour for the outline of your rectangle Paint rectanglePaint = new Paint(); rectanglePaint.setARGB(255, 255, 0, 0); rectanglePaint.setStrokeWidth(2); rectanglePaint.setStyle(Style.FILL); //Then create yourself a Rectangle RectF rectangle = new RectF(15.0f, 50.0f, 55.0f, 75.0f); //in pixels Log.d(TAG,"On Draw method"); // TODO Auto-generated method stub Paint paintHandl = new Paint(); // paintHandl.setColor(0xaabbcc); paintHandl.setARGB(125, 234, 213, 34 ); RectF rectObj = new RectF(5,5,25,25); canvas.drawRoundRect(rectangle, 0.5f, 0.5f, rectanglePaint); } @Override public int getOpacity() { // TODO Auto-generated method stub return 100; } @Override public void setAlpha(int alpha) { // TODO Auto-generated method stub } @Override public void setColorFilter(ColorFilter cf) { // TODO Auto-generated method stub this.cf = cf; } } I am trying to get this displayed in my activity, as shown below public class custDrawable extends Activity { /** Called when the activity is first created. */ LinearLayout layObj = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); layObj = (LinearLayout) findViewById(R.id.parentLay); ImageView imageView = (ImageView) findViewById(R.id.icon2); myDrawable myDrawObj = new myDrawable(); imageView.setImageDrawable(myDrawObj); imageView.invalidate(); // layObj.addView(myDrawObj, params); } } But when i run the app i see no rectangle on the activity, can anyone help me out? Where am i going wrong?

    Read the article

< Previous Page | 49 50 51 52 53 54 55 56 57 58 59 60  | Next Page >