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  • Visual Studio error on valid SQL

    - by Sam
    I'm getting an annoying error in visual studio for SQL that executes fine. SELECT InvoiceLines.LineID, InvoiceLines.InvoiceID, InvoiceLines.Text, InvoiceLines.Rate, InvoiceLines.Count, InvoiceLines.Rate * InvoiceLines.Count AS LineTotal, ((InvoiceLines.Rate * InvoiceLines.Count) * (1 + Invoices.VatRate / 100)) * (1 - CAST(Invoices.Discount AS money) * InvoiceLines.ApplyDiscount / 100) AS LineTotalIncVat, InvoiceLines.ApplyDiscount FROM InvoiceLines LEFT JOIN Invoices ON Invoices.InvoiceID = InvoiceLines.InvoiceID What LineTotalIncVat is trying to do is compute the total for the invoice item while adding the vat and subtracting the discount, and yes, probably better to do this in code (would if I could) The error visual studio gives is: There was an error parsing the query [token line number =1, token line offset =14, token in error = InvoiceLines] Even though it will validate and execute without a problem in the query builder...

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  • How I can add and remove the attribute "readonly" ?

    - by question_about_the_problem
    $(document).ready(function() { //Check City Value var city_value = parseInt($("#city").val()); if( city_value == 0) { $("#state").attr("readonly", true); //$("#rate").attr("readonly", "readonly"); } else { $("#state").removeAttr("readonly"); //document.getElementById("state").removeAttribute("readonly",0); //get_states(city_value); } /*** //Check State Value var state_value = parseInt($('#state').val()); if( state_value == 0) { $('#rate').attr('readonly', true); } else { $('#rate').attr('readonly', false); } ***/ });

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  • Why does use of H264 in sender/receiver pipelines introduce just HUGE delay?

    - by Serguey Zefirov
    When I try to create pipeline that uses H264 to transmit video, I get some enormous delay, up to 10 seconds to transmit video from my machine to... my machine! This is unacceptable for my goals and I'd like to consult StackOverflow over what I (or someone else) do wrong. I took pipelines from gstrtpbin documentation page and slightly modified them to use Speex: This is sender pipeline: #!/bin/sh gst-launch -v gstrtpbin name=rtpbin \ v4l2src ! ffmpegcolorspace ! ffenc_h263 ! rtph263ppay ! rtpbin.send_rtp_sink_0 \ rtpbin.send_rtp_src_0 ! udpsink host=127.0.0.1 port=5000 \ rtpbin.send_rtcp_src_0 ! udpsink host=127.0.0.1 port=5001 sync=false async=false \ udpsrc port=5005 ! rtpbin.recv_rtcp_sink_0 \ pulsesrc ! audioconvert ! audioresample ! audio/x-raw-int,rate=16000 ! \ speexenc bitrate=16000 ! rtpspeexpay ! rtpbin.send_rtp_sink_1 \ rtpbin.send_rtp_src_1 ! udpsink host=127.0.0.1 port=5002 \ rtpbin.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=5003 sync=false async=false \ udpsrc port=5007 ! rtpbin.recv_rtcp_sink_1 Receiver pipeline: !/bin/sh gst-launch -v\ gstrtpbin name=rtpbin \ udpsrc caps="application/x-rtp,media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263-1998" \ port=5000 ! rtpbin.recv_rtp_sink_0 \ rtpbin. ! rtph263pdepay ! ffdec_h263 ! xvimagesink \ udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0 \ rtpbin.send_rtcp_src_0 ! udpsink port=5005 sync=false async=false \ udpsrc caps="application/x-rtp,media=(string)audio, clock-rate=(int)16000, encoding-name=(string)SPEEX, encoding-params=(string)1, payload=(int)110" \ port=5002 ! rtpbin.recv_rtp_sink_1 \ rtpbin. ! rtpspeexdepay ! speexdec ! audioresample ! audioconvert ! alsasink \ udpsrc port=5003 ! rtpbin.recv_rtcp_sink_1 \ rtpbin.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=5007 sync=false async=false Those pipelines, a combination of H263 and Speex, work fine enough. I snap my fingers near camera and micropohne and then I see movement and hear sound at the same time. Then I changed pipelines to use H264 along the video path. The sender becomes: #!/bin/sh gst-launch -v gstrtpbin name=rtpbin \ v4l2src ! ffmpegcolorspace ! x264enc bitrate=300 ! rtph264pay ! rtpbin.send_rtp_sink_0 \ rtpbin.send_rtp_src_0 ! udpsink host=127.0.0.1 port=5000 \ rtpbin.send_rtcp_src_0 ! udpsink host=127.0.0.1 port=5001 sync=false async=false \ udpsrc port=5005 ! rtpbin.recv_rtcp_sink_0 \ pulsesrc ! audioconvert ! audioresample ! audio/x-raw-int,rate=16000 ! \ speexenc bitrate=16000 ! rtpspeexpay ! rtpbin.send_rtp_sink_1 \ rtpbin.send_rtp_src_1 ! udpsink host=127.0.0.1 port=5002 \ rtpbin.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=5003 sync=false async=false \ udpsrc port=5007 ! rtpbin.recv_rtcp_sink_1 And receiver becomes: #!/bin/sh gst-launch -v\ gstrtpbin name=rtpbin \ udpsrc caps="application/x-rtp,media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264" \ port=5000 ! rtpbin.recv_rtp_sink_0 \ rtpbin. ! rtph264depay ! ffdec_h264 ! xvimagesink \ udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0 \ rtpbin.send_rtcp_src_0 ! udpsink port=5005 sync=false async=false \ udpsrc caps="application/x-rtp,media=(string)audio, clock-rate=(int)16000, encoding-name=(string)SPEEX, encoding-params=(string)1, payload=(int)110" \ port=5002 ! rtpbin.recv_rtp_sink_1 \ rtpbin. ! rtpspeexdepay ! speexdec ! audioresample ! audioconvert ! alsasink \ udpsrc port=5003 ! rtpbin.recv_rtcp_sink_1 \ rtpbin.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=5007 sync=false async=false This is what happen under Ubuntu 10.04. I didn't noticed such huge delays on Ubuntu 9.04 - the delays there was in range 2-3 seconds, AFAIR.

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  • How can I limit asp.net control actions based on user role?

    - by Duke
    I have several pages or views in my application which are essentially the same for both authenticated users and anonymous users. I'd like to limit the insert/update/delete actions in formviews and gridviews to authenticated users only, and allow read access for both authed and anon users. I'm using the asp.net configuration system for handling authentication and roles. This system limits access based on path so I've been creating duplicate pages for authed and anon paths. The solution that comes to mind immediately is to check roles in the appropriate event handlers, limiting what possible actions are displayed (insert/update/delete buttons) and also limiting what actions are performed (for users that may know how to perform an action in the absence of a button.) However, this solution doesn't eliminate duplication - I'd be duplicating security code on a series of pages rather than duplicating pages and limiting access based on path; the latter would be significantly less complicated. I could always build some controls that offered role-based configuration, but I don't think I have time for that kind of commitment right now. Is there a relatively easy way to do this (do such controls exist?) or should I just stick to path-based access and duplicate pages? Does it even make sense to use two methods of authorization? There are still some pages which are strictly for either role so I'll be making use of path-based authorization anyway. Finally, would using something other than path-based authorization be contrary to typical asp.net design practices, at least in the context of using the asp.net configuration system?

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  • jQuery ajax request to php, how to return plain text only

    - by jyoseph
    I am making an ajax request to a php page and I cannot for the life of me get it to just return plain text. $.ajax({ type: 'GET', url: '/shipping/test.php', cache: false, dataType: 'text', data: myData, success: function(data){ console.log(data) } }); in test.php I am including this script to get UPS rates. I am then calling the function with $rate = ups($dest_zip,$service,$weight,$length,$width,$height); I am doing echo $rate; at the bottom of test.php. When viewed in a browser shows the rate, that's great. But when I request the page via ajax I get a bunch of XML. Pastie here: http://pastie.org/1416142 My question is, how do I get it so I can just return the plain text string from the ajax call, where the result data will be a number? Edit, here's what I see in Firebug- Response tab: HTML tab:

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  • terminated value of Eclipse

    - by helloWorld
    I have some function: void addNormalLine(int id, LineNumber number, Rate smsRate, Rate callRate) { list<Account>::iterator iAccounts; findAccount(iAccounts, id); if(iAccounts == listOfAccounts.end()){ throw "AccountDoesNotExist"; } if(lineExists(number)){ throw "LineExists"; } else{ iAccounts->increaseNumLines(); shared_ptr<Line> currentLine(new Line(id, number, smsRate, callRate)); //here I have some problems listOfLines.push_back(currentLine); //without these two rows it works, but didn't add lines to my list } } Account, Rate, LineNumber - some classes but It always add only one or two numbers, if I add 3 it always terminates and and I recieve terminated, exit value: 3, I tried google it, but didn't find, what is than supposed to mean, thanks in advance

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  • Retrieving specific tuples using Mysql

    - by Narayanan
    Hi, I have some problems retrieving specific tuples. I am actually a student trying to build a Room management system. I have two tables: Room(roomID,hotelname,rate) and Reservation(resID,arriveDate,departDate,roomID). I am not sure how to retrieve the rooms that are available between 2 specific dates. This was the query that i used. SELECT Room.roomID,hotelname,rate FROM Room LEFT JOIN Reservation on ( Room.roomID=Reservation.resID and arriveDate >='2010-02-16' and departDate <='2010-02-20' ) GROUP BY roomID,hotelname,rate HAVING count(*)=0;' but it returns an empty set. Can any1 be kind enough to tell me what mistake i am doing??

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  • C# compile error for simple Annual Salary Calculator

    - by Mike Vignapiano
    I am new to C# and trying to create my 1st app. I have 3 errors. The first two say that txtSalary and Salary do not exist. The 3rd says that it cannot convert method group 'ToString' to non-delegate type 'string'. and asks if I intend to invoke the method. Here is what I have: protected void Button1_Click(object sender, EventArgs e) { int salary, AnnualHours, Rate; string txtAnnualHours, txtSalary, txtRate; salary = AnnualHours * Rate; txtsalary = int.Parse(Salary); txtAnnualHours = salary.ToString; MessageBox.Show(salary); } According to my book, when you enter numerics in AnnualHours and Rate textbox, when click Button1, these values are converted from string to integers, then multiplied for salary. Then numeric answer converted to string and displayed in messagebox named txtSalary. Please show me what I got wrong because according to the book, I am not missing anything.

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  • How to use the sum the value of 2 totals in different table (Reporting Services)?

    - by dewacorp.alliances
    Hi there In report design, I have 2 tables (Current and Proposed) the structure like this: Current Parameter | Value | Rate | Total Value ... Proposed Parameter | Value | Rate | Total Value ... Each bottom of the table (Table Footer), I have something called: "Total: " which is a sum of Total field. I called these textboxes are txtbxCurrent and txtbxProposed and the format is in currency already. This thing is running well. But now I need to get a total of these txtbxCurrent and txtbxProposed. How do I do this? Can I take the value of this or not? BTW .. I am using Ms SQL Server 2005 (ReportViewer - client) Also here my dataset looks like: RecID | Type | Parameter | Value | Rate | Total 1, CURRENT, 'Param1', 100, 0.1, 10 1, CURRENT, 'Param2', 200, 0.2, 10 1, PROPOSED, 'Param1', 100, 0.2, 20 1, PROPOSED, 'Param2', 200, 0.2, 20 Thanks

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  • xrdp and xfce4 Ubuntu 14.04 slow refreshrate

    - by Awatatah
    I am running Ubuntu 14.04 LTS 32bit and I am connecting via windows rdp to my ubuntu machine that has xrdp with xfce4 session. Network is 40mbps/5mbps. RDP to a windows machine from a windows machine is flawless from same location. I can connect fine, but the refresh rate is horrible. When it fist opens the desktop, the picture drags as seen in this image. The same thing happens when items are opened, closed, etc. Windows have the same effect. Sometimes up to 4 seconds before the image is rendered, depending on the image. Is there a setting to improve the refresh rate or something I can do to fix?

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  • Issues with timed out downloads via TomCat?

    - by Ira Baxter
    We get, in our opinion, a lot of failed download attempts and want to understand why. We offer downloads via an email link (typical): http://www.semanticdesigns.com/deliverEval/<productname> This is processed by Tomcat on Linux via a jsp file, with the following code: response.addHeader( "Content-Disposition", "attachment; filename=" + fileTail ); response.addHeader( "Content-Type", "application/x-msdos-program" ); byte[] buf = new byte[8192]; int read; try { java.io.FileInputStream input = new java.io.FileInputStream( filename ); java.io.OutputStream o = response.getOutputStream(); while( ( read = input.read( buf, 0, 8192 ) ) != -1 ){ o.write( buf, 0, read ); } o.flush(); } catch( Exception e ){ util.fatalError( request.getRequestURI(), "Error sending file '" + filename + "' to client", e ); throw e; } We get a lot of reported errors (about 50% error rate): URI --- /deliverEval/download.jsp Code Message: Error sending file '/home/sd/ShippingMasters/DMS/Domains/C/GCC3/Tools/TestCoverage/SD_C~GCC3_TestCoverage.1.6.12.exe' to client Stack Trace ----------- null at org.apache.coyote.tomcat5.OutputBuffer.realWriteBytes(byte[], int, int) (Unknown Source) at org.apache.tomcat.util.buf.ByteChunk.append(byte[], int, int) (Unknown Source) at org.apache.coyote.tomcat5.OutputBuffer.writeBytes(byte[], int, int) (Unknown Source) at org.apache.coyote.tomcat5.OutputBuffer.write(byte[], int, int) (Unknown Source) at org.apache.coyote.tomcat5.CoyoteOutputStream.write(byte[], int, int) (Unknown Source) at org.apache.jsp.deliverEval.download_jsp._jspService(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) (Unknown Source) at org.apache.jasper.runtime.HttpJspBase.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) (Unknown Source) at javax.servlet.http.HttpServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (Unknown Source) at org.apache.jasper.servlet.JspServletWrapper.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, boolean) (Unknown Source) at org.apache.jasper.servlet.JspServlet.serviceJspFile(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.lang.String, java.lang.Throwable, boolean) (Unknown Source) at org.apache.jasper.servlet.JspServlet.service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) (Unknown Source) at javax.servlet.http.HttpServlet.service(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.doFilter(javax.servlet.ServletRequest, javax.servlet.ServletResponse) (Unknown Source) at org.apache.catalina.core.StandardWrapperValve.invoke(org.apache.catalina.Request, org.apache.catalina.Response, org.apache.catalina.ValveContext) (Unknown Source) We don't understand why this rate should be so high. Is there any way to get more information about the cause of the error? It is useful to know that these are pretty big documents, 3-50 megabytes. They reside on the Linux server so reading them is just a local disk read, and is unlikely to be a contributor to the problem. But sheer size might be an issue for the recipients browser? Is this kind of error rate typical for downloads? My personal experience downloading other's documents suggests no; our internal attempts show this to be very reliable, but we're operating on our internal network for such experiments so we're missing the complexity of the intervening internet.

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  • Wow Twitter!!! Ten billions and counting

    - by samsudeen
    Twitter the micro blogging site crossed the ten billions milestone on 4th of this month as per the report by GigaTweet (Site which tracks the number of tweets posted on twitter) The person who sent the 10 billionth tweet is still unknown as his profile is protected. But the 9,999,999,999th tweet was sent by one Rafaela Marques from Brazil. AS you can see GigaTweet expects just another 196 days to reach the 20 billionth marks if tweet continues with the current pace. Some of the interesting statics about rate in which people tweeted every year 2007 – 5000 tweets per day 2008 – 300,000 tweets per day 2009 – 2.5 million per day It reached an average of 35 million tweets per day by end  2009. Today believe it or not the tweet rate is 50 million tweets per day and that’s why we call Wow Twitter!!! . Join us on Facebook to read all our stories right inside your Facebook news feed.

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  • Limit Windows PC Network/Internet Throughput

    - by Jon Cram
    I have a Vista x64 machine on a fairly fast Internet connection and either buggy drivers for the onboard Ethernet or faulty onboard Ethernet hardware. If I sustain too high a throughput on the Ethernet connection the network connection within Windows fails and I have to restart the machine to restore connectivity. I don't believe I can fix this issue (I'm erring towards faulty hardware) but would like to mitigate the effects by limiting my network throughput. I'm in a position where I would like to download a 5GB file from the Internet (a game install via Steam) and am certain that as this will take a few hours I will not be able to complete the download before my network connection within Windows fails. From downloading content through a BitTorrent client I have found that by limiting the download throughput to around 150 kilobytes per second I can maintain a steady network connection. I can't directly limit the throughput of the download through the Steam client and would instead like to find out how I can limit the throughput of my Ethernet connection within Windows. Any suggestions on how I can achieve this?

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  • SQL SERVER – Number-Crunching with SQL Server – Exceed the Functionality of Excel

    - by Pinal Dave
    Imagine this. Your users have developed an Excel spreadsheet that extracts data from your SQL Server database, manipulates that data through the use of Excel formulas and, possibly, some VBA code which is then used to calculate P&L, hedging requirements or even risk numbers. Management comes to you and tells you that they need to get rid of the spreadsheet and that the results of the spreadsheet calculations need to be persisted on the database. SQL Server has a very small set of functions for analyzing data. Excel has hundreds of functions for analyzing data, with many of them focused on specific financial and statistical calculations. Is it even remotely possible that you can use SQL Server to replace the complex calculations being done in a spreadsheet? Westclintech has developed a library of functions that match or exceed the functionality of Excel’s functions and contains many functions that are not available in EXCEL. Their XLeratorDB library of functions contains over 700 functions that can be incorporated into T-SQL statements. XLeratorDB takes advantage of the SQL CLR architecture introduced in SQL Server 2005. SQL CLR permits managed code to be compiled into the database and run alongside built-in SQL Server functions like COUNT or SUM. The Westclintech developers have taken advantage of this architecture to bring robust analytical functions to the database. In our hypothetical spreadsheet, let’s assume that our users are using the YIELD function and that the data are extracted from a table in our database called BONDS. Here’s what the spreadsheet might look like. We go to column G and see that it contains the following formula. Obviously, SQL Server does not offer a native YIELD function. However, with XLeratorDB we can replicate this calculation in SQL Server with the following statement: SELECT *, wct.YIELD(CAST(GETDATE() AS date),Maturity,Rate,Price,100,Frequency,Basis) AS YIELD FROM BONDS This produces the following result. This illustrates one of the best features about XLeratorDB; it is so easy to use. Since I knew that the spreadsheet was using the YIELD function I could use the same function with the same calling structure to do the calculation in SQL Server. I didn’t need to know anything at all about the mechanics of calculating the yield on a bond. It was pretty close to cut and paste. In fact, that’s one way to construct the SQL. Just copy the function call from the cell in the spreadsheet and paste it into SMS and change the cell references to column names. I built the SQL for this query by starting with this. SELECT * ,YIELD(TODAY(),B2,C2,D2,100,E2,F2) FROM BONDS I then changed the cell references to column names. SELECT * --,YIELD(TODAY(),B2,C2,D2,100,E2,F2) ,YIELD(TODAY(),Maturity,Rate,Price,100,Frequency,Basis) FROM BONDS Finally, I replicated the TODAY() function using GETDATE() and added the schema name to the function name. SELECT * --,YIELD(TODAY(),B2,C2,D2,100,E2,F2) --,YIELD(TODAY(),Maturity,Rate,Price,100,Frequency,Basis) ,wct.YIELD(GETDATE(),Maturity,Rate,Price,100,Frequency,Basis) FROM BONDS Then I am able to execute the statement returning the results seen above. The XLeratorDB libraries are heavy on financial, statistical, and mathematical functions. Where there is an analog to an Excel function, the XLeratorDB function uses the same naming conventions and calling structure as the Excel function, but there are also hundreds of additional functions for SQL Server that are not found in Excel. You can find the functions by opening Object Explorer in SQL Server Management Studio (SSMS) and expanding the Programmability folder under the database where the functions have been installed. The  Functions folder expands to show 3 sub-folders: Table-valued Functions; Scalar-valued functions, Aggregate Functions, and System Functions. You can expand any of the first three folders to see the XLeratorDB functions. Since the wct.YIELD function is a scalar function, we will open the Scalar-valued Functions folder, scroll down to the wct.YIELD function and and click the plus sign (+) to display the input parameters. The functions are also Intellisense-enabled, with the input parameters displayed directly in the query tab. The Westclintech website contains documentation for all the functions including examples that can be copied directly into a query window and executed. There are also more one hundred articles on the site which go into more detail about how some of the functions work and demonstrate some of the extensive business processes that can be done in SQL Server using XLeratorDB functions and some T-SQL. XLeratorDB is organized into libraries: finance, statistics; math; strings; engineering; and financial options. There is also a windowing library for SQL Server 2005, 2008, and 2012 which provides functions for calculating things like running and moving averages (which were introduced in SQL Server 2012), FIFO inventory calculations, financial ratios and more, without having to use triangular joins. To get started you can download the XLeratorDB 15-day free trial from the Westclintech web site. It is a fully-functioning, unrestricted version of the software. If you need more than 15 days to evaluate the software, you can simply download another 15-day free trial. XLeratorDB is an easy and cost-effective way to start adding sophisticated data analysis to your SQL Server database without having to know anything more than T-SQL. Get XLeratorDB Today and Now! Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL Tagged: Excel

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  • Integrated webcam not being detected

    - by Johnny
    I am having a problem with my laptops integrated cam. Its a brand new laptop and the cam worked in windows 8. But I dont do windows. So I installed Ubuntu 12.10 and the cam DID work... but I then went with 14.04 now and I get no webcam action. My laptop is ASUS X551CA-RI3N15. This is the results from the command... Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 003: ID 04f2:b404 Chicony Electronics Co., Ltd Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 002: ID 12c9:1001 Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I Thank all for the help ahead of time.

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  • When to detect collisions in game loop

    - by Ciaran
    My game loop uses a fixed time step to do "physics" updates, say every 20 ms. In here I move objects. I draw frames as frequently as possible. I work out a value between 0 and 1 to represent the proportion of the physics tick that is complete and interpolate between the previous and current physics state before drawing. It results in a smoother game assuming the frame rate is higher than the physics update rate. I am currently doing the collision detection in the physics update routine. I was wondering should it instead take place in the interpolated draw routine where the positions match what the user sees? Collisions can result in explosions by the way.

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  • extrapolating object state based on updates

    - by user494461
    I have a networked multi-user collaborative application. To maintain a consistent virtual world, I send updates for objects from a master peer to a guest peer. The update state contains x,y,z coordinates of object center and his rotation matrix(CHAI3d api used a 3x3 matrix) with 30Hz frequency. I want to reduce this update rate and want to send with a reduced update rate. I want a predictor on both peers. When the predicted value is outside, say a error value of 10% in comparison to master peers objects original state the master peer triggers a state update. Now for position I used velocity,position updates so that the guest peer can extrapolate position. Like velocity for position what parameter should I use for rotation extrapolition?

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  • I need a webpage to host my javascript!

    - by Amir Reza
    Does anyone know a website that hosts javascripts on their page? I have a research project that needs to collect some RTT from all over the world and compare them together. I have written the javascript code for that but I do not have a high hit rate website to put it on to collect data. I know it is a little bit odd question to ask, but do you know any website or any trick that can help me? Note that the script would not do any harm to anybody! :-) Thanks, Decad is right, I basically need some people to put my script on their "high-hit rate" website ... so I can collect data from large number of clients... Of coarse, the script is run on the background with no harm to the page. It basically measures some RTT and submit it to a server. I already have some pages, but they barely got a hit from outside! Thanks,

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  • How Can I Get My USB TV Tuner To Work

    - by Foxface
    I have a KWorld UB445-U ATSC Hybrid TV Stick. I've tried MythTV, but it kept crashing when I was trying to set it up, and didn't get anywhere with it. I've tried VLC and just tried Kaffiene. I'm not sure how to work VLC or Kaffeine to accept my TV. Can someone help me with it? EDIT: Code: foxface@Toshiba-Satellite-L775:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 04f2:b289 Chicony Electronics Co., Ltd Bus 002 Device 006: ID 1b80:e421 Afatech Bus 003 Device 002: ID 13fd:1e40 Initio Corporation

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  • Removing hard-coded values and defensive design vs YAGNI

    - by Ben Scott
    First a bit of background. I'm coding a lookup from Age - Rate. There are 7 age brackets so the lookup table is 3 columns (From|To|Rate) with 7 rows. The values rarely change - they are legislated rates (first and third columns) that have stayed the same for 3 years. I figured that the easiest way to store this table without hard-coding it is in the database in a global configuration table, as a single text value containing a CSV (so "65,69,0.05,70,74,0.06" is how the 65-69 and 70-74 tiers would be stored). Relatively easy to parse then use. Then I realised that to implement this I would have to create a new table, a repository to wrap around it, data layer tests for the repo, unit tests around the code that unflattens the CSV into the table, and tests around the lookup itself. The only benefit of all this work is avoiding hard-coding the lookup table. When talking to the users (who currently use the lookup table directly - by looking at a hard copy) the opinion is pretty much that "the rates never change." Obviously that isn't actually correct - the rates were only created three years ago and in the past things that "never change" have had a habit of changing - so for me to defensively program this I definitely shouldn't store the lookup table in the application. Except when I think YAGNI. The feature I am implementing doesn't specify that the rates will change. If the rates do change, they will still change so rarely that maintenance isn't even a consideration, and the feature isn't actually critical enough that anything would be affected if there was a delay between the rate change and the updated application. I've pretty much decided that nothing of value will be lost if I hard-code the lookup, and I'm not too concerned about my approach to this particular feature. My question is, as a professional have I properly justified that decision? Hard-coding values is bad design, but going to the trouble of removing the values from the application seems to violate the YAGNI principle. EDIT To clarify the question, I'm not concerned about the actual implementation. I'm concerned that I can either do a quick, bad thing, and justify it by saying YAGNI, or I can take a more defensive, high-effort approach, that even in the best case ultimately has low benefits. As a professional programmer does my decision to implement a design that I know is flawed simply come down to a cost/benefit analysis?

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  • 3 Weeks Left to Save $100 for the Oracle Value Chain Summit

    - by Stephen Slade
    Projected to be sellout event, for the next 3 weeks you can save $100 with the Early-Bird Registration rate for the Oracle Value Chain Summit. Attend and experience 6 pillar product Conferences under one roof. Bring your supply chain team and receive a group discount (4+ attendees).  The site hotel has a dedicated room block (at a discounted rate) that is filling fast - so be sure to take advantage of these great offers! A new agenda was just published this week with an exciting lineup of best practices and success stories that I'm sure many of you can benefit from. REGISTER_TODAY!

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  • Micromax 3G mobile internet modem not being detected

    - by arjith
    I have Micromax 3G modem, and i inserted it in the USB port, but it is not being detected by Ubuntu 12.04, that i'm using from a Live USB. I tried creating a mobile internet connection, however, eventhough i created it, there is no option to connect. I had previously used 11.10 Ubuntu, and it had automatically detected the datastick modem and asked me to create a connection. On typing lsusb in the terminal it gives the following: **Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 03f0:5307 Hewlett-Packard Bus 001 Device 008: ID 1c9e:9605 OMEGA TECHNOLOGY Bus 001 Device 006: ID 5986:0364 Acer, Inc tried to insert the modem before boot, with negative results **

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  • External USB 3 drive not recognized

    - by ilan123
    Ubuntu 12.10 64 bit seems not to recognize my external hard disk. It is a Vantec NST-310S3 external disk enclosure with a WD 3TB drive. The disk has two NTFS partitions. My PC is a dual boot system. Under Windows 7 the hard disk works fine but I can't make it work with Ubuntu. When the drive is connected to the PC then the command sudo fdisk -l seems to hang forever. Below are the output of lsusb and cat /proc/partitions without the external drive and then with it connected. I added also the last lines of the dmesg command at the end. First without the drive: ilan@linux:~$ lsusb Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 13ba:0017 Unknown PS/2 Keyboard+Mouse Adapter Bus 001 Device 004: ID 046d:c50e Logitech, Inc. Cordless Mouse Receiver Bus 001 Device 005: ID 0ac8:3420 Z-Star Microelectronics Corp. Venus USB2.0 Camera ilan@linux:~$ cat /proc/partitions major minor #blocks name 8 0 1953514584 sda 8 1 102400 sda1 8 2 629043200 sda2 8 3 367001600 sda3 8 4 1 sda4 8 5 471859200 sda5 8 6 157286400 sda6 8 7 324115456 sda7 8 8 4101120 sda8 11 0 1048575 sr0 Second with the USB 3 drive: ilan@linux:~$ lsusb Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 004 Device 002: ID 174c:55aa ASMedia Technology Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 13ba:0017 Unknown PS/2 Keyboard+Mouse Adapter Bus 001 Device 004: ID 046d:c50e Logitech, Inc. Cordless Mouse Receiver Bus 001 Device 005: ID 0ac8:3420 Z-Star Microelectronics Corp. Venus USB2.0 Camera ilan@linux:~$ cat /proc/partitions major minor #blocks name 8 0 1953514584 sda 8 1 102400 sda1 8 2 629043200 sda2 8 3 367001600 sda3 8 4 1 sda4 8 5 471859200 sda5 8 6 157286400 sda6 8 7 324115456 sda7 8 8 4101120 sda8 11 0 1048575 sr0 8 16 2930266584 sdb ilan@linux:~$ lsusb -v -s 004:002 Bus 004 Device 002: ID 174c:55aa ASMedia Technology Inc. Couldn't open device, some information will be missing Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 3.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 9 idVendor 0x174c ASMedia Technology Inc. idProduct 0x55aa bcdDevice 1.00 iManufacturer 2 iProduct 3 iSerial 1 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 44 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0400 1x 1024 bytes bInterval 0 bMaxBurst 15 ilan@linux:~$ sudo fdisk -l [sudo] password for ilan: Disk /dev/sda: 2000.4 GB, 2000398934016 bytes 255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xf1b4f1ee Device Boot Start End Blocks Id System /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT /dev/sda2 206848 1258293247 629043200 7 HPFS/NTFS/exFAT /dev/sda3 1258293248 1992296447 367001600 7 HPFS/NTFS/exFAT /dev/sda4 1992298494 3907028991 957365249 f W95 Ext'd (LBA) /dev/sda5 1992298496 2936016895 471859200 7 HPFS/NTFS/exFAT /dev/sda6 2936018944 3250591743 157286400 7 HPFS/NTFS/exFAT /dev/sda7 3250593792 3898824703 324115456 83 Linux /dev/sda8 3898826752 3907028991 4101120 82 Linux swap / Solaris dmesg output after connecting the external drive: [ 23.740567] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 23.740786] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 49.144673] usb 4-1: >new SuperSpeed USB device number 2 using xhci_hcd [ 49.163039] usb 4-1: >Parent hub missing LPM exit latency info. Power management will be impacted. [ 49.166789] usb 4-1: >New USB device found, idVendor=174c, idProduct=55aa [ 49.166793] usb 4-1: >New USB device strings: Mfr=2, Product=3, SerialNumber=1 [ 49.166796] usb 4-1: >Product: AS2105 [ 49.166799] usb 4-1: >Manufacturer: ASMedia [ 49.166801] usb 4-1: >SerialNumber: 0123456789ABCDEF [ 49.206372] usbcore: registered new interface driver uas [ 49.228891] Initializing USB Mass Storage driver... [ 49.229042] scsi6 : usb-storage 4-1:1.0 [ 49.229115] usbcore: registered new interface driver usb-storage [ 49.229116] USB Mass Storage support registered. [ 64.045528] scsi 6:0:0:0: >Direct-Access WDC WD30 EZRX-00MMMB0 80.0 PQ: 0 ANSI: 0 [ 64.046224] sd 6:0:0:0: >Attached scsi generic sg2 type 0 [ 64.046881] sd 6:0:0:0: >[sdb] Very big device. Trying to use READ CAPACITY(16). [ 64.047610] sd 6:0:0:0: >[sdb] 5860533168 512-byte logical blocks: (3.00 TB/2.72 TiB) [ 64.048368] sd 6:0:0:0: >[sdb] Write Protect is off [ 64.048373] sd 6:0:0:0: >[sdb] Mode Sense: 23 00 00 00 [ 64.048984] sd 6:0:0:0: >[sdb] No Caching mode page present [ 64.048987] sd 6:0:0:0: >[sdb] Assuming drive cache: write through [ 64.049297] sd 6:0:0:0: >[sdb] Very big device. Trying to use READ CAPACITY(16). [ 64.050942] sd 6:0:0:0: >[sdb] No Caching mode page present [ 64.050944] sd 6:0:0:0: >[sdb] Assuming drive cache: write through [ 94.245006] usb 4-1: >reset SuperSpeed USB device number 2 using xhci_hcd [ 94.262553] usb 4-1: >Parent hub missing LPM exit latency info. Power management will be impacted. [ 94.263805] xhci_hcd 0000:03:00.0: >xHCI xhci_drop_endpoint called with disabled ep ffff8800d37d1c00 [ 94.263808] xhci_hcd 0000:03:00.0: >xHCI xhci_drop_endpoint called with disabled ep ffff8800d37d1c40 [ 125.262722] usb 4-1: >reset SuperSpeed USB device number 2 using xhci_hcd [ 125.280304] usb 4-1: >Parent hub missing LPM exit latency info. Power management will be impacted. [ 125.281511] xhci_hcd 0000:03:00.0: >xHCI xhci_drop_endpoint called with disabled ep ffff8800d37d1c00 [ 125.281516] xhci_hcd 0000:03:00.0: >xHCI xhci_drop_endpoint called with disabled ep ffff8800d37d1c40

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  • Ubuntu doesn't see my phone (Sony Xperia Tipo)

    - by ola
    When I connect my phone Xperia Tipo to my Ubuntu 12.04, the USB icon does not appear in a launcher. lsusb gives me following results: Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 003: ID 8086:0189 Intel Corp. Bus 001 Device 004: ID 1bcf:2880 Sunplus Innovation Technology Inc. Bus 003 Device 003: ID 0fce:5170 Sony Ericsson Mobile Communications AB I installed Wammu and it does not see phone either: Wammu is now searching for phone: All finished, found 0 phones No phone has been found! On the phone I have debbugging turned on and it sees Ubuntu. Can I ask for instruction step by step? I am a begginer on Ubuntu.

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  • Splitting an MP4 file

    - by Asaf Chertkoff
    what is the fastest and less resource consuming method for splitting an MP4 file? @Alex: it didn't work, i don't know why. see the out put here: asafche@asafche-laptop:~$ ffmpeg -vcodec copy -ss 0 -t 00:10:00 -i /home/asafche/Videos/myVideos/MAH00124.MP4 /home/asafche/Videos/myVideos/eh.mp4 FFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1.1, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-version=4:0.5.1-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --disable-stripping --disable-vhook --enable-runtime-cpudetect --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static libavutil 49.15. 0 / 49.15. 0 libavcodec 52.20. 1 / 52.20. 1 libavformat 52.31. 0 / 52.31. 0 libavdevice 52. 1. 0 / 52. 1. 0 libavfilter 0. 4. 0 / 0. 4. 0 libswscale 0. 7. 1 / 0. 7. 1 libpostproc 51. 2. 0 / 51. 2. 0 built on Mar 31 2011 18:53:20, gcc: 4.4.3 Seems stream 0 codec frame rate differs from container frame rate: 119.88 (120000/1001) -> 59.94 (60000/1001) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/asafche/Videos/myVideos/MAH00124.MP4': Duration: 00:15:35.96, start: 0.000000, bitrate: 5664 kb/s Stream #0.0(und): Video: h264, yuv420p, 1280x720, 59.94 tbr, 59.94 tbn, 119.88 tbc Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16 Output #0, mp4, to '/home/asafche/Videos/myVideos/eh.mp4': Stream #0.0(und): Video: libx264, yuv420p, 1280x720, q=2-31, 90k tbn, 59.94 tbc Stream #0.1(und): Audio: 0x0000, 48000 Hz, stereo, s16, 64 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Unsupported codec for output stream #0.1 it says something about different frame rate...

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