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  • Using Minified Page Specific JS [migrated]

    - by Mike C
    I've been working on a rather large scale project which makes use of a number of different pages with some very specific Javascript for each of them. To lessen load times, I plan to minify it all in to one file before deploying. The problem is this: how should I avoid launching page specific JS on pages which don't require it? So far my best solution has been to wrap each page in some additional container <div id='some_page'> ...everything else... </div> and I extended jQuery so I can do something like this: // If this element exists when the DOM is ready, execute the function $('#some_page').ready(function() { ... }); Which, while kind of cool, just rubs me the wrong way.

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  • JMeter: how to asign a single distinct value from CSV Data Set Config to each thread in thread group?

    - by JohnnyM
    I have to make a load test for a relatively large number of users so I cant realy use User Parameters pre-processor to parametrize each thread with custom user data. I've read that I should use CSV Data Set Config instead. However I run into a problem with how JMeter interprets the input of this Config. Example: I have a thread group of 3 threads and Loop Count:10 with one HTTP request sampler with server www.example.com and path: \${user}. The csv file (bullet is a single line in file) for CSV Data Set Config to extract the user parameter: 1 2 3 4 5 Expected output is that for thread 1-x the path of the request should be: \x. So the output file should consist of 10 samples per thread namely: for thread 1-1 : 10 requests to www.example.com\1 for thread 1-2 : 10 requests to www.example.com\2 for thread 1-3 : 10 requests to www.example.com\3 but instead i get requests to each \1 - \5 and then to EOF. Does anyone know how to achieve the expected effect with CSV Data Set Config in jmeter 2.9?

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  • Joining and compressing all javascript files together - good idea?

    - by Tomáš Zato
    Curently, I avoid loading any unnecesary scripts on individual pages of my site. I have a class that remembers all javascript files that were requested during PHP processing and adds them to HTML. I was just thinking that I could merge the current set of files, save the result in special directory and let the browser download just one, big file. Since the number of possible combinations is not very high, I would end up with about 10 combined files for different pages. I've never seen that on any site. What are the reasons not to do it? I need very fast page load.

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  • Intermittent Could not load file or assembly / PolicyExceptions

    - by Mark S. Rasmussen
    Intermittently we'll get errors like these from our .NET 3.5 web applications: Exception: System.Configuration.ConfigurationErrorsException: Could not load file or assembly 'itextsharp, Version=4.1.2.0, Culture=neutral, PublicKeyToken=8354ae6d2174ddca' or one of its dependencies. Failed to grant permission to execute. (Exception from HRESULT: 0x80131418) (C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Config\web.config line 59) ---> System.IO.FileLoadException: Could not load file or assembly 'itextsharp, Version=4.1.2.0, Culture=neutral, PublicKeyToken=8354ae6d2174ddca' or one of its dependencies. Failed to grant permission to execute. (Exception from HRESULT: 0x80131418) File name: 'itextsharp, Version=4.1.2.0, Culture=neutral, PublicKeyToken=8354ae6d2174ddca' ---> System.Security.Policy.PolicyException: Execution permission cannot be acquired. at System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Boolean checkExecutionPermission) at System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Int32& securitySpecialFlags, Boolean checkExecutionPermission) at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.Load(String assemblyString) at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) --- End of inner exception stack trace --- at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) at System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() at System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) at System.Web.Configuration.AssemblyInfo.get_AssemblyInternal() at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) at System.Web.Compilation.WebDirectoryBatchCompiler..ctor(VirtualDirectory vdir) at System.Web.Compilation.BuildManager.BatchCompileWebDirectoryInternal(VirtualDirectory vdir, Boolean ignoreErrors) at System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) at System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) at System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean noAssert) at System.Web.Compilation.BuildManager.GetCompiledType(String virtualPath) at System.Web.Script.Services.WebServiceData.GetWebServiceData(HttpContext context, String virtualPath, Boolean failIfNoData, Boolean pageMethods, Boolean inlineScript) at System.Web.Script.Services.RestHandler.CreateHandler(HttpContext context) at System.Web.Script.Services.ScriptHandlerFactory.GetHandler(HttpContext context, String requestType, String url, String pathTranslated) at System.Web.HttpApplication.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) Inner exception: System.IO.FileLoadException: Could not load file or assembly 'itextsharp, Version=4.1.2.0, Culture=neutral, PublicKeyToken=8354ae6d2174ddca' or one of its dependencies. Failed to grant permission to execute. (Exception from HRESULT: 0x80131418) File name: 'itextsharp, Version=4.1.2.0, Culture=neutral, PublicKeyToken=8354ae6d2174ddca' ---> System.Security.Policy.PolicyException: Execution permission cannot be acquired. at System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Boolean checkExecutionPermission) at System.Security.SecurityManager.ResolvePolicy(Evidence evidence, PermissionSet reqdPset, PermissionSet optPset, PermissionSet denyPset, PermissionSet& denied, Int32& securitySpecialFlags, Boolean checkExecutionPermission) at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) at System.Reflection.Assembly.Load(String assemblyString) at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) web.config line 59 being: <add assembly="*"/> When these occur, the sites will YSOD untill we recycle the application pool. The sites may run for days/weeks before this occurs, or it might happen twice within the hour. I have not been able to pinpoint this to any specific request/function in our system. In this case it points to itextsharp, but it randomly points to any assembly referenced by our application, both internal and external. Running caspol verifies that the DLL has full trust permissions: C:\Windows\Microsoft.NET\Framework64\v2.0.50727>caspol -rsg D:\...\bin\itextsharp.dll Microsoft (R) .NET Framework CasPol 2.0.50727.3053 Copyright (c) Microsoft Corporation. All rights reserved. Level = Enterprise Code Groups: 1. All code: FullTrust Level = Machine Code Groups: 1. All code: Nothing 1.1. Zone - MyComputer: FullTrust Level = User Code Groups: 1. All code: FullTrust Success Our application is running on three servers, two of them are on Server 2008 Web x64 while the third is running Server 2008 R2 Web x64, all have .NET 3.5 installed, no .NET 4.0 installations. The problem only occurs on the first two that are running 2008 non R2. Running depends.exe on all three servers gives equal results for the nonR2 servers: My DLL is shown as x86 (compiled as AnyCPU, running in x64 w3wp), all other modules show as x64. Missing IESHIMS.DLL and LINKINFO.DLL - both of these seem to be red herrings according to Google. The third server shows the same, except it does not miss LINKINFO.DLL All servers are running IIS7 (7.5 for the R2 one) under a custom domain account that has been granted the necessary permissions: aspnet_regiis -ga [user] Load user profile is set to false on all three servers. I've tried setting this to true on one of the faulting servers, according to: http://stackoverflow.com/questions/1846816/iis7-failed-to-grant-minimum-permission-requests By running processmonitor I can see that it's now using the C:\Users\TEMP\AppData\Local\Temp directory for various temp files - the other ones are not using any such directory. So far I'll let it run in this way to see if this changes anything. I'm in doubt however given that the third server is not exhibiting the problems, yet still has "Load user profile" set to the same value, false. I've also tried running Fuslogvw on all three servers, logging binding failures to disk. All three servers report the same binding errors for VJSharpCodeProvider and CppCodeProvider, but these seem to be normal as well and can be solved by not defining the DEBUG and TRACE constants during build. We're running about 500 websites on each server (identical, load balanced), of which 50 are under moderate load, the problem has arisen both under heavy load as well as under minimal load however. Right now I'm waiting for the errors to happen again so I can hopefully see a pattern and determine whether "Load user profile" alleviates the issue. Any suggestions in the meantime would be very welcome! Also, I don't understand how the lack of "Load user profile" would cause an issue like this? And even further, how it would seemingly work on R2 but not on plain 2008? Thanks!

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  • Why is Apple System Image Utility so slow?

    - by Jon Rhoades
    I'm using Apple System Image Utility (SIU) on Snow Leopard 10.6.2 and I am rather disturbed it takes over Three hours to make a Netrestore or Netboot image. I'm using as the donor machine a brand new iMac and as the imaging machine a brand new iMac connected using target disk mode & Firewire 800. The hard drive size and subsequent image is about 8GB. To restore the image over the network takes about 4 minutes. Given that Norton Ghost will take an image in about 5 minutes (or less on newer machines) over USB2, why is the Mac over an order of magnitude slower?

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  • Installing software after .wim image

    - by lross1309
    I have been looking all day into how to install software to a .wim image. I have a .wim image of a laptop that will be deplyed to 20 more. The image is pretty much good to go except I need to add a couple more drivers and a couple more applications. Is there a way to do this in the answer file? Do I have to deploy the image, install the drivers/application, sysprep, and recapture the image? Any information relating to this will be greatly appreciated. Leon ps I have only been using answer files and imagex. Would like to stick with this for the time being. I plan on using WDT and WDS when I have some time to learn about it.

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  • "Disk Not Found" Error when trying to install iso image of CentOs on ESXI using VSphere

    - by kamal
    When trying to install CentOs setup as an iso image on datastore, i get an error : "Disk Not Found". I am using ESXi 4.1 as host VM. Is there a way to attach DVD/CD as iso image ? I tried "Connect at Power on" Checked and Connect CD/DVD on the VSphere Console, but i still am unable ot get the iso image recognized as a DVD mounted image: Solved: if i look at the image size, it was 11 MB, so it WAS a boot iso, but nithing else, if we compare it with other boot images with complete iso's therein lies the solution. This boot.iso was from rBUILD/Conary packaging

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  • Very small image for rebuilds

    - by Deon
    I worked at a place last year that had a very small image for Windows XP re-builds. It was two Norton GHO files, totalling about 2-3 GB. This is how it worked: Boot into Norton Ghost Map to the network share where the images lived Apply the image to the workstation Reboot It would then load into Windows Setup Enter the Domain Admin credentials so it can join the domain That's it... it would then reboot into Windows and the image was complete. How did they make an image so small? Did they perhaps kick off a Windows install and create an image then? I particularly liked how it required no user input other than a domain admin login.

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  • Pattern Recognition for image comparision in .net

    - by vinod R
    hi Can anybody share code or algorithm(using pattern recognition) for image comparision in .net . I need to compare 2 images of different resolution and textures and the find the difference . Now i have code to find the difference between 2 images using C# // Load the images. Bitmap bm1 = (Bitmap) (Image.FromFile(txtFile1.Text)); Bitmap bm2 = (Bitmap) (Image.FromFile(txtFile2.Text)); // Make a difference image. int wid = Math.Min(bm1.Width, bm2.Width); int hgt = Math.Min(bm1.Height, bm2.Height); Bitmap bm3 = new Bitmap(wid, hgt); // Create the difference image. bool are_identical = true; int r1; int g1; int b1; int r2; int g2; int b2; int r3; int g3; int b3; Color eq_color = Color.Transparent; Color ne_color = Color.Transparent; for (int x = 0; x <= wid - 1; x++) { for (int y = 0; y <= hgt - 1; y++) { if (bm1.GetPixel(x, y).Equals(bm2.GetPixel(x, y))) { bm3.SetPixel(x, y, eq_color); } else { bm1.SetPixel(x, y, ne_color); are_identical = false; } } } // Display the result. picResult.Image = bm1; Bitmap Logo = new Bitmap(picResult.Image); Logo.MakeTransparent(Logo.GetPixel(1, 1)); picResult.Image = (Image)Logo; //this.Cursor = Cursors.Default; if ((bm1.Width != bm2.Width) || (bm1.Height != bm2.Height)) { are_identical = false; } if (are_identical) { MessageBox.Show("The images are identical"); } else { MessageBox.Show("The images are different"); } //bm1.Dispose() // bm2.Dispose() BUT this compare if the 2 images are of same resolution and size.if some shadow is there on one image(but the 2 images are same) it shows the difference between the image..so i am trying to compare using pattern recognition. Thanks in advance

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  • Lightbox image / link URL

    - by GSTAR
    Basically I have a slightly non-standard implementation of FancyBox. By default you have to include a link to the large version of the image so that the Lightbox can display it. However, in my implementation, the image link URLs point to a script rather than directly to the image file. So for example, instead of: <a href="mysite/images/myimage.jpg" rel="gallery"> I have: <a href="mysite/photos/view/abc123" rel="gallery"> The above URL points to a function: public function actionPhotos($view) { $photo=Photo::model()->find('name=:name', array(':name'=>$view)); if(!empty($photo)) { $this->renderPartial('_photo', array('photo'=>$photo, true)); } } The "$this-renderPartial()" bit simply calls a layout file which includes a standard HTML tag to output. Now when the user clicks on a thumbnail, the above function is called and the large image is displayed in the Lightbox. Now if the user right clicks on the thumbnail and selects "open in new tab/window" then the image is displayed in the browser as per normal, i.e. just the image. I want to change this so that it displays the image within a layout. In the above code I can include the following and put it in an IF statement: $this->render('photos', array('photo'=>$photo)); This will call the layout file "photos" which contains the layout to display the image in. I have a specific limitation for this - the image URL must remain the same, i.e. no additional GET variables in the URL. However if we can pass in a GET variable in the background then that is OK. I will most likely need to change my function above so that it calls a different file for this functionality. EDIT: To demonstrate exactly what I am trying to do, check out the following: http://www.starnow.co.uk/KimberleyMarren Go to the photos tab and hover over a thumbnail - note the URL. Click the thumbnail and it will open up in the Lightbox. Next right click on that same thumbnail and select "open in new tab/new window". You will notice that the image is now displayed in a layout. So that same URL is used for displaying the image in the Lightbox and on its own page. The way StarNow have done this is using some crazy long JavaScript functionality, which I'm not too keen on replicating.

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  • reuse div container to load images

    - by user295927
    Hi All; What I would like to do: use a single container to load images. As it is now: I have eleven (11) containers in HTML mark-up each with its own div. each container holds 4 images (2 images side by side top and bottom) when link in anchor tag is clicked div with images fades in. /*-- Jquery accordion is used for navigation typical example is below --*/ <li> <a class="head" href="#">commercial/hospitality</a> <ul> <li><a href="#" projectName="project1" projectType="hospitality1" image1="images/testImage1.jpg" image2="images/testImage2.jpg" image3="images/testImage3.jpg" image4="images/testImage4.jpg">hospitality project number 1</a> </li> <li><a href="#" projectName="project2" projectType="hospitality2" image1="images/testImage1.jpg" image2="images/testImage2.jpg" image3="images/testImage3.jpg" image4="images/testImage4.jpg">hospitality project number 2</a> </li> <li><a href="#" projectName="project3" projectType="hospitality3" image1="images/testImage1.jpg" image2="images/testImage2.jpg" image3="images/testImage3.jpg" image4="images/testImage4.jpg">hospitality project number 3</a> </li> </ul> </li> Typical <div> container used for image insertion currently there are 11 of them: <div id="hospitality1" class="current"> <div id="image1"><img src="images/testImage.jpg"/></div> <div id="image2"><img src="images/testImage.jpg"/></div> <div id="image3"><img src="images/testImage.jpg"/></div> <div id="image4"><img src="images/testImage.jpg"/></div> </div> Here is the code I am using at this point, it does work, but is there a better way to do this that will only re-use a single div container for loading the images? $(document).ready(function(){ $('#navigation a').click(function (selected) { var projectType = $(this).attr("projectType"); //projectType var projectName = $(this).attr("projectName"); //projectName var image1 = $(this).attr("image1"); //anchor tag for image number 1 var image2 = $(this).attr("image2"); //anchor tag for image number 2 var image3 = $(this).attr("image3"); //anchor tag for image number 3 var image4 = $(this).attr("image4"); //anchor tag for image number 4 console.log(projectType); //returns type of project console.log(projectName); //returns name of project console.log(image1); //returns 1st image console.log(image2); //returns 2nd image console.log(image3); //returns 3rd image console.log(image4); //returns 4th image $(function() { $(".current").hide(); // hides previous selected image $("#" + projectType ).fadeIn("normal").addClass("current"); }); }); As you can, see the mark up getting quite large. Any help is appreciated. ussteele

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  • Display BLOB (image) through JSP

    - by jMarcel
    I have a code to show a chart o employees. The data (name, phone, photo etc) are stored in SQLServer and displayed through JSP. Showing the data is ok, except the image .jpg (stored in IMAGE=BLOB column). By the way, I've already got the image displayed (see code below), but I dont't know how to put it in the area defined in a .css (see code below, too), since the image got through the resultSet is loaded in the whole page in the browser. Does anyone knows how can I 'frame' the image ? <% Connection con = FactoryConnection_SQL_SERVER.getConnection("empCHART"); Statement stSuper = con.createStatement(); Statement stSetor = con.createStatement(); Blob image = null; byte[] imgData = null; ResultSet rsSuper = stSuper.executeQuery("SELECT * FROM funChart WHERE dept = 'myDept'"); if (rsSuper.next()) { image = rsSuper.getBlob(12); imgData = image.getBytes(1, (int) image.length()); response.setContentType("image/gif"); OutputStream o = response.getOutputStream(); //o.write(imgData); // even here we got the same as below. //o.flush(); //o.close(); --[...] <table style="margin: 0px; margin-top: 15px;"> <tr> <td id="photo"> <img title="<%=rsSuper.getString("empName").trim()%>" src="<%= o.wite(imageData); o.flush(); o.close(); %>" /> </td> </td> <td id="empData"> <h3><%=rsSuper.getString("empName")%></h3> <p><%=rsSuper.getString("Position")%></p> <p>Id:<br/><%=rsSuper.getString("id")%></p> <p>Phone:<br/><%=rsSuper.getString("Phone")%></p> <p>E-Mail:<br/><%=rsSuper.getString("Email")%></p> </td> </table> And here is the fragment supposed to frame the image: #photo { padding: 0px; vertical-align: middle; text-align: center; width: 170px; height: 220px; } Thanks in advance !

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  • Converting an Oracle VM VirtualBox VM into an Oracle VM Server image

    - by wim.coekaerts
    As we are working on tighter seemless moving of VM's between the 2 products, here are a few simple steps to convert an existing Oracle VM VirtualBox image over. Steps involved to make it easy/straightforward : (1) When creating a VM in Virtualbox, using Oracle Linux as an example, make sure that /etc/fstab only uses labels. Do not use hardcoded device names. instead of an entry /dev/sda1 /u01 ext3 defaults 1 1 use LABEL=foo /u01 ext3 defaults 1 1 for more info on labels : man e2label or use a logical volume /dev/VolGroup00/LVfoo /u01 ext3 defaults 1 1 Doing so will make it easier to have an OS boot up on a different hypervisor with potentially different device names. For instance, the VirtualBox VM might expose a scsi driver while in Oracle VM Server you might end up with an ide disk, this then changes /dev/sda to /dev/hda. (2) If you have a VM created that you want to convert, then shut down the VM in VirtualBox and convert the image files : go the the directory that contains your HardDisk image files (.VirtualBox/HardDisks/* as an example) for each of the virtual disks run the following command : VBoxManage clonehd virtualdiskfilename.vdi system.img --format raw where virtualdiskfilename.vdi is the original VBox VM file (this can also be a vmdk file) and system.img is the name of the virtualdisk for Oracle VM. this can be any filename as well, I typically use system.img to specify the boot disk (as is common for Oracle VM template creation) (3) create a vm.cfg To run a VM converted from VirtualBox, you have to create a vm.cfg for Oracle VM server that creates an HVM guest. The easiest is to use a simple hvm vm.cfg and change it for your vm. I have an example here : acpi = 1 apic = 1 builder = 'hvm' device_model = '/usr/lib/xen/bin/qemu-dm' disk = ['file:system.img,hda,w', 'file:oracle.img,hdb,w',',hdc:cdrom,r',] kernel = '/usr/lib/xen/boot/hvmloader' memory = '1024' name = 'vmname' on_crash = 'restart' on_reboot = 'restart' pae = 1 serial = 'pty' timer_mode = '0' usbdevice = 'tablet' vcpus = 1 vif = ['bridge=xenbr0,type=ioemu'] vif_other_config = [] vnc = 1 vncconsole = 1 vnclisten = '0.0.0.0' vncpasswd = '' vncunused = 1 If you take the above vm.cfg, all you need to do - modify disk = (add your virtual disks in there) - modify memory = (amount of memory your VM needs) - modify name = (enter a name for your VM here) - modify vif = (might want to replace bridge=xenbr0 to the bridge you want to use) if you want more than 1 vcpu or other changes of course you have to make those as well. (4) copy this set of files onto your Oracle VM server or onto a webserver in a subdirectory and import the template through Oracle VM Manager. You can also just start the vm using xm create vm.cfg if you like. And that's it. As I said, we are working on automation around all this but it is relatively trivial to convert VM's over as long as you take the basic issues into account. Primarily the set up of the filesystems and the use of labels in /etc/fstab. There are other potential things to look at, such as network config. If you want to make that part clean then prior to shutting down the VM change /etc/modprobe.conf and/or add the mac address of the VM into the vm.cfg in the vifs line. The good thing, at least with Linux, is that even tho the virtual hardware changes, Linux will deal with it just fine (e1000 vs 8139 realtek, ide vs scsi etc). hope this helps.

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  • How to export pdf page as a image using pdfsharp .net library ?

    - by vi.su.
    How to export a pdf page as an image using pdfsharp .net library, for pixel level manipulation ? for example, something like, System.Drawing.BitMap.GetPixel() I am trying to find out empty area (all white, or of any colour) inside a pdf document, to write some graphics / image. 09, June 2010: I have tried this, but it is not working. why the following code is not working as expected ? Bitmap.GetPixel always returns 0. // // PdfSharp.Pdf.PdfDocument // PdfSharp.Pdf.PdfPage // PdfSharp.Drawing.XGraphics // System.Drawing.Bitmap // string srcPDF = @"C:\hcr\test\tmp\file1.pdf"; PdfDocument pdfd = PdfReader.Open(srcPDF); XGraphics xgfx = XGraphics.FromPdfPage(pdfd.Pages[0]); Bitmap b = new Bitmap((int) pdfp.Width.Point, (int) pdfp.Height.Point, xgfx.Graphics); int rgb = b.GetPixel(0, 0).ToArgb();

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  • How does Silverlight Image Clipping work?

    - by TreeUK
    I've got a very large image which I'd like to use for sprite techniques (à la css image sprites). I've got the code below: <Image x:Name="testImage" Width="24" Height="12" Source="../Resources/Images/sprites.png"> <Image.Clip> <RectangleGeometry Rect="258,10632,24,12" /> </Image.Clip> </Image> This clips the source image to 24x12 at the relative position of 258, 10632 in the source image. The problem is that I want the cropped image to show at 0,0 in the testImage whereas it shows it at 258, 10632. It's using the geometry as a cutting guide but also as a layout guide. Anyone have any idea how this should be done? if at all. Conclusion: There seems to be no good way of doing this at present, Graeme's solution seems to be the closest to achieving this with Silverlight 2.0. That said, if anyone knows of a better way of doing this, please reply with an answer.

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  • UIBarButtonItem with custom image and no border

    - by mongeta
    Hello, I want to create a UIBarButtonItem with a custom image, but I don't want the border that iPhone adds, as my Image has a special border. It's the same as the back button but a forward button. This App is for an inHouse project, so I don't care if Apple reject or approves it or likes it :-) If I use the initWithCustomView:v property of the UIBarButtonItem, I can do it: UIImage *image = [UIImage imageNamed:@"right.png"]; UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; [button setBackgroundImage: [image stretchableImageWithLeftCapWidth:7.0 topCapHeight:0.0] forState:UIControlStateNormal]; [button setBackgroundImage: [[UIImage imageNamed: @"right_clicked.png"] stretchableImageWithLeftCapWidth:7.0 topCapHeight:0.0] forState:UIControlStateHighlighted]; button.frame= CGRectMake(0.0, 0.0, image.size.width, image.size.height); [button addTarget:self action:@selector(AcceptData) forControlEvents:UIControlEventTouchUpInside]; UIView *v=[[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, image.size.width, image.size.height) ]; [v addSubview:button]; UIBarButtonItem *forward = [[UIBarButtonItem alloc] initWithCustomView:v]; self.navigationItem.rightBarButtonItem= forward; [v release]; [image release]; This works, but if I have to repeat this process in 10 views, this is not DRY. I suppose I have to subclass, but what ? NSView ? UIBarButtonItem ? thanks, regards,

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  • Dynamically inserting an image with JavaScript does not work on images that 302 redirect

    - by Samuel Clay
    I am dynamically inserting an image into an HTML document using jQuery. Here is the code: var image_url = "http://www.kottke.org/plus/misc/images/castro-pitching.jpg"; var $image = $('<img src="'+image_url+'" width="50" height="50" />'); $('body').prepend($image); Notice that the image http://www.kottke.org/plus/misc/images/castro-pitching.jpg is actually a 302 redirect to http://kottkegae.appspot.com/images/castro-pitching.jpg. If you were to go to the original image in your browser, it works fine. If you were to load an HTML page with that image in an img tag, it would load fine. However, if you were to insert it dynamically using jQuery (or JavaScript, for that matter), the browser will not show the 302'ed image. If you show the redirected image, it would work fine. var image_url = "http://kottkegae.appspot.com/images/castro-pitching.jpg"; var $image2 = $('<img src="'+image_url+'" width="50" height="50" />'); $('body').prepend($image2); That's crazy, right? What gives and how can I force the image to load when inserted dynamically?

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  • JavaScript Image zoom with CSS3 Transforms, How to calculate Origin? (with example)

    - by Sunday Ironfoot
    I'm trying to implement an image zoom effect, a bit like how the zoom works with Google Maps, but with a grid of fix position images. I've uploaded an example of what I have so far here: http://www.dominicpettifer.co.uk/Files/MosaicZoom.html (uses CSS3 transforms so only works with Firefox, Opera, Chrome or Safari) Use your mouse wheel to zoom in/out. The HTML source is basically an outer div with an inner-div, and that inner-div contains 16 images arranged using absolute position. It's going to be a Photo Mosaic basically. I've got the zoom bit working using CSS3 transforms: $(this).find('div').css('-moz-transform', 'scale(' + scale + ')'); ...however, I'm relying on the mouse X/Y position on the outer div to zoom in on where the mouse cursor is, similar to how Google Maps functions. The problem is that if you zoom right in on an image, move the cursor to the bottom/left corner and zoom again, instead of zooming to the bottom/left corner of the image, it zooms to the bottom/left of the entire mosaic. This has the effect of appearing to jump about the mosaic as you zoom in closer while moving the mouse around, even slightly. That's basically the problem, I want the zoom to work exactly like Google Maps where it zooms exactly to where your mouse cursor position is, but I can't get my head around the Maths to calculate the transform-origin: X/Y values correctly. Please help, been stuck on this for 3 days now. Here is the full code listing for the mouse wheel event: var scale = 1; $("#mosaicContainer").mousewheel(function(e, delta) { if (delta > 0) { scale += 1; } else { scale -= 1; } scale = scale < 1 ? 1 : (scale > 40 ? 40 : scale); var x = e.pageX - $(this).offset().left; var y = e.pageY - $(this).offset().top; $(this).find('div').css('-moz-transform', 'scale(' + scale + ')') .css('-moz-transform-origin', x + 'px ' + y + 'px'); return false; });

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  • How to recognise vehicle licence / number plate (ANPR) from an image?

    - by Ryan ONeill
    Hi all, I have a web site that allows users to upload images of cars and I would like to put a privacy filter in place to detect registration plates on the vehicle and blur them. The blurring is not a problem but is there a library or component (open source preferred) that will help with finding a licence within a photo? Caveats; I know nothing is perfect and image recognition of this type will provide false positive and negatives. I appreciate that we could ask the user to select the area to blur and we will do this as well, but the question is specifically about finding that data programmatically; so answers such as 'get a person to check every image' is not helpful. This software method is called 'Automatic Number Plate Recognition' in the UK but I cannot see any implementations of it as libraries. Any language is great although .Net is preferred. Thanks in advance Ryan

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  • Emulator restarts after snapshot load

    - by reox
    I've set up a android emulator with a snapshot of a specific state i need to go back every time. the snapshot is created and is listed and i can also start directly with this snapshot with emulator -avd MyAVD -snapshot mystate -no-snapshot-save the problem is now that the emulator restart itselfs after i load the snapshot after i did my changes in the emulator. So if i use echo -e "avd snapshot load mystate\nexit" | nc localhost 5554 the snapshot is loaded correctly but then after some seconds i see the bootloader screen. Whats happening there? this phenomen is repeatable with different emulators and different snapshots. is it possible that i just misuse a feature here? edit: it seems this problem is only occuring when i load a snapshot multiple times. after starting the emulator, everything is working quite well. now i load my snapshot, also everything is working well. but when i now load the same snapshot again, it will correctly load it but then the emulator will restart. so is there any possibility to load a snapshot multiple times? otherwise i always need to restart my emulator, which takes a long time...

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  • Saving and retrieving image in SQL database from C# problem

    - by Mobin
    I used this code for inserting records in a person table in my DB System.IO.MemoryStream ms = new System.IO.MemoryStream(); Image img = Image_Box.Image; img.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp); this.personTableAdapter1.Insert(NIC_Box.Text.Trim(), Application_Box.Text.Trim(), Name_Box.Text.Trim(), Father_Name_Box.Text.Trim(), DOB_TimePicker.Value.Date, Address_Box.Text.Trim(), City_Box.Text.Trim(), Country_Box.Text.Trim(), ms.GetBuffer()); but when i retrieve this with this code byte[] image = (byte[])Person_On_Application.Rows[0][8]; MemoryStream Stream = new MemoryStream(); Stream.Write(image, 0, image.Length); Bitmap Display_Picture = new Bitmap(Stream); Image_Box.Image = Display_Picture; it works perfectly fine but if i update this with my own generated Query like System.IO.MemoryStream ms = new System.IO.MemoryStream(); Image img = Image_Box.Image; img.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp); Query = "UPDATE Person SET Person_Image ='"+ms.GetBuffer()+"' WHERE (Person_NIC = '"+NIC_Box.Text.Trim()+"')"; the next time i use the same code for retrieving the image and displaying it as used above . Program throws an exception

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  • Some sites won't load on Ubuntu/Mint

    - by Or W
    I have a REALLY weird problem with either my network or my OS. Last week I've suddenly had difficulties loading some websites or even more odd some parts of different websites. For example, I could load gmail.com, login and view the list of emails in my inbox but when I clicked one of them it would just time out. Another example is http://www.ynet.co.il, I can view the home page but going into any one of the articles fails (times out). I've tried Chrome, Firefox and Opera, all fail the same way. If I take a URL of a page I cannot load via the browser and try to wget it though the console I get the file just fine. I've formatted my machine (Used to run Ubuntu 13.04) and installed Mint Linux this time, it worked fine for a few days and now, again, having the same exact issues. Important to note that I have other machines connected either directly or via Wi-Fi to the router and they are all working fine (two win7 machines and 1 raspberry pi). Another strange behavior is that I can ftp or ssh to remote machines but cannot send files via ftp (times out) even if I set passive mode ON and when using ssh I can do just about anything but I cannot paste text into the remote machine, for example if I nano a file on the remote machine and try to paste anything from my clipboard it freezes. What I've tried so far: Disable IPv6 on the networking admin (and on firefox disabling ipv6 on the about:config page) Changing the port and the network cable I went to the store and bought a new standalone PCIe network adapter Connected my win7 laptop using the same cable and router port (sites that were not working on my Mint are working just fine on the win7 machine) Loaded Mint from a livecd, got the same result Tried changing the MTU (was 1500, tried 1492) Some observations: When I clear my browser cache and go to facebook.com for example, the homepage loads but I fail to load any profile/group page. If I refresh facebook.com homepage a couple of times it stops and fails to load until I clear my browser cache. I changed the chrome cache folder permissions to 0777 but that did not help. When I run netstat -n I see A LOT of connections that are in 'FIN_WAIT' mode (I'm guessing that's when I try to refresh pages that are not working and timing out), I have no idea what it means or if it helps anyone figure out what's wrong. The sites that are not loading correctly are always that same, they don't vary or anything and they fail to load exactly the same way on all three browsers that I've tried. When I Googled 'Ubuntu some sites not loading' I see a huge amount of complaints just like mine, but none of them that I could find actually says what the problem is or how they fixed it. Technical stuff: netstat -n ps aux netstat -nr

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