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  • Howto rotate image using jquery rotate plugin?

    - by Tom
    How do you rotate an image using jquery (www.jquery.com) rotate plugin (http://code.google.com/p/jquery-rotate/)? I have tried the following and it doesn't seem to work: <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=windows-1252"> <title>View Photo</title> <script type="text/javascript" src="scripts/jquery.js"></script> <script type="text/javascript" src="scripts/jquery.rotate.1-1.js"></script> <script type="text/javascript"> var angle = 0; setInterval ( function (e) { rotate(); }, 100 ); function rotate() { angle = angle + 1; $('#pic').rotate(angle); } </script> </head> <body> <img border="0" src="player.gif" name="pic" id="pic"> </body> </html> Other methods that are supported by most browsers are wanted too, thanks!

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  • Showing image in place of flash to iphones and ipads

    - by poindexter
    I want to detect user-agent on load and if the visitor is viewing on an iPhone or iPad I want to display this code: <?php get_header(); ?> <div class="flash"> <img src="/wp-content/themes/iq-iphone/main-page-image.png"/> </div> If it's a regular visitor I want to display this code: <?php get_header(); ?> <div class="flash"> <script type="text/javascript"> AC_FL_RunContent( 'codebase','http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0','width','924','height','316','src','<?php bloginfo('template_directory');?>/images/featurePanel','quality','high','pluginspage','http://www.macromedia.com/go/getflashplayer','movie','<?php bloginfo('template_directory');?>/images/featurePanel','wmode','transparent' ); //end AC code </script> <noscript> <object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width="924" height="316"> <param name="movie" value="<?php bloginfo('template_directory');?>/images/featurePanel.swf" /> <param name="quality" value="high" /> <param name="wmode" value="transparent" /> <embed src="<?php bloginfo('template_directory');?>/images/featurePanel.swf" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="924" height="316"></embed> </object> </noscript> </div> Any ideas? Thanks!

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  • Actionscript image download open custom viewer

    - by Vish
    Hi Gurus, i am downloading tiff images from WAMP server using our Flex AIR client. Using the following code for that. public static function requestDownload(id:int, defaultName:String):void { //POST params var urlVars:URLVariables = new URLVariables(); urlVars.action = "download"; urlVars.fid = id; var urlReq:URLRequest = new URLRequest(); urlReq.url = Config.getServerURL(); urlReq.data = urlVars; Config.fileReference.addEventListener(Event.,FileDownload.requestDownloadResultV); try { Config.fileReference.download(urlReq, defaultName); } catch (e:Error) { Alert.show("Error in downloading the file"); } } public static function requestDownloadResultV(e:Event):void { Alert.show("File downloaded"); } No issues with the download. It automatically prompts for a Save dialog. Works well. But i want to open the image being downloaded in a viewer(flash viewer or any) instead of the save dialog. Please help me. Thanks Vish.

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  • jquery/javascript - image resize to fit screen

    - by alberto
    not an expert programmer. i created this code to resize photos/images to fit the screen, considering the space available for the nav bar. the script happens on load of image, and on click of the navigation. is it a good piece of code, or could it be done better? any browser issues? in the html: $(document).ready(function(){ $("#photo").load(function(){ resize(); }); $(".navigation img").click(function(){ var imgPath = $(this).attr("src"); $("#photo").attr({ src: imgPath }); resize(); return false; }); }); while this is my function resize: resize = function() { var borderVt=150; //value based on css style. bottom bar + padding of photoContain var borderHz=40; //value based on css style photoContain padding $("#photo").css("width", "auto").css("height", "auto"); // Remove existing CSS $("#photo").removeAttr("width").removeAttr("height"); // Remove HTML attributes var origSizeW = $("#photo").width(); var origSizeH = $("#photo").height(); var ratioVt=(origSizeW/origSizeH); var ratioHz=(origSizeH/origSizeW); var winW = $(window).width(); var winH = $(window).height(); var screenSizeW=Math.round(winW-borderHz); var screenSizeH=Math.round(winH-borderVt); if (origSizeW>=origSizeH){ var newHeight = Math.round(screenSizeW*ratioHz); if (newHeight <= screenSizeH){ $("#photo").css("width", screenSizeW); // Set new width $("#photo").css("height", newHeight); } else{ $("#photo").css("height", screenSizeH); } } else{ $("#photo").css("height", screenSizeH); // Set new height } };

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  • Hard link not works under MacOS in GUI mode

    - by AntonAL
    Hi, i faced a little strange behavior, while using hard links. From terminal, i create a text file 1.txt and a hard link "to this file" nano 1.txt mkdir dir ln 1.txt ./dir/ I check the resulting hard link and see, that it's contents is the same, as of "original" file. less ./dir/1.txt I change the initial file ... nano 1.txt ... and see, that changes was reflected in hard-link less ./dir/1.txt I change content of hard-link (more correct, of course - file, being referenced with hard-link) ... nano ./dir/1.txt ... and see, that changes are reflected in initial file less 1.txt Until now, all going well... Now, I close terminal and start playing with created files (1.txt and ./dir/1.txt) from Finder. When i change on this two files with TextEdit, changes are not reflected in another file. Just like the hard link was teared off... Whats going on here ?

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  • Django Image Upload: IOErrno2 Could not find path -- and yet it's saving the image there anyway?

    - by Rob
    I have an issue where the local version of django is handling image upload as expected but my server is not. Note: I am using a Django Container on MediaTemple.net (grid server) Here is my code. def view_settings(request): <snip> if request.POST: success_msgs = () mForm = MainProfileForm(request.POST, request.FILES, instance = mProfile) pForm = ChangePasswordForm(request.POST) eForm = ChangeEmailForm(request.POST) if mForm.is_valid(): m = mForm.save(commit = False) if mForm.cleaned_data['avatar']: m.avatar = upload_photo(request.FILES['avatar'], settings.AVATAR_SAVE_LOCATION) m.save() success_msgs += ('profile pictured updated',) <snip> def upload_photo(data,saveLocation): savePath = os.path.join(settings.MEDIA_ROOT, saveLocation, data.name) destination = open(savePath, 'wb+') for chunk in data.chunks(): destination.write(chunk) destination.close() return os.path.join(saveLocation, data.name) Here's where it gets whacky and I was hoping someone could shed a light on this error, because either a) it's the wrong error code, or b) something is happening with the file before it's completely handled. To recap, the file was actually uploaded to the server in the intended directory - and yet this err msg continues to persist. IOError at /user/settings [Errno 2] No such file or directory: u'/home/user66666/domains/example.com/html/media/images/avatars/DSC03852.JPG' Environment: Request Method: POST Request URL: http://111.111.111.111:2011/user/settings Django Version: 1.0.2 final Python Version: 2.4.4 Installed Applications: ['django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'ctrlme', 'usertools', 'easy_thumbnails'] Installed Middleware: ('django.middleware.common.CommonMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware') Traceback: File "/home/user6666/containers/django/leonidas/usertools/views.py" in view_settings m.avatar = upload_photo(request.FILES['avatar'], settings.AVATAR_SAVE_LOCATION) File "/home/user666666/containers/django/leonidas/usertools/functions.py" in upload_photo destination = open(savePath, 'wb+')

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  • I need some help cropping an image in PHP (GD)

    - by evan
    http://i.imgur.com/foT9u.jpg Using that image as an example, here's what I need to do: Crop the blue square to have the same proportional ratio as that of the black square From doing that, I should then be able to resize the blue square to fit into the black square without losing stretching it - It'll retain its proportions. Note: The blue square must be cropped 'from the center'. The original center should remain the center after the crop (it can't be cropped from the top left, for example). Here's what I'm thinking needs to be done (using the, landscape, blue square as the example): Figure out the difference between the black squares width and height Figure out the difference between the blue squares width and height This should tell me how much to crop the blue square by and with how much of a 'top offset' Once it's cropped to fit the black squares proportions, it can then be resized I've been messing around with code similar to: if (BLACK_WIDTH > BLACK_HEIGHT) { $diffHeight = BLACK_WIDTH - BLACK_HEIGHT; $newHeight = $blue_Height - $blue_Height; echo $newHeight; } And using Photoshop to try and get a feel for how this should be done, but it continues to fail .< How should I go about doing this? How can I figure out how much to crop by (depending on if the blue square is landscape or portrait)? How do I then get the offset to retain the blue squares center?

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  • 3D effect to distort paper

    - by donpal
    This may be a little hard to describe since I don't have a sample. I'm trying to find a math function or full 3d function in php or a similar language that can help me with the following effect: imagine if you were to take a flat sheet or paper and glue it on a glass of water. It wouldn't be flat any more. It would have a curve, and one of its sides might end up being slightly hidden. Anyone can refer me to a good library or resource on the web where such functions can be found?

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  • Image drawing library for Haskell?

    - by absz
    I'm working on a Haskell program for playing spatial games: I have a graph of a bunch of "individuals" playing the Prisoner's Dilemma, but only with their immediate neighbors, and copying the strategies of the people who do best. I've reached a point where I need to draw an image of the world, and this is where I've hit problems. Two of the possible geometries are easy: if people have four or eight neighbors each, then I represent each one as a filled square (with color corresponding to strategy) and tile the plane with these. However, I also have a situation where people have six neighbors (hexagons) or three neighbors (triangles). My question, then, is: what's a good Haskell library for creating images and drawing shapes on them? I'd prefer that it create PNGs, but I'm not incredibly picky. I was originally using Graphics.GD, but it only exports bindings to functions for drawing points, lines, arcs, ellipses, and non-rotated rectangles, which is not sufficient for my purposes (unless I want to draw hexagons pixel by pixel*). I looked into using foreign import, but it's proving a bit of a hassle (partly because the polygon-drawing function requires an array of gdPoint structs), and given that my requirements may grow, it would be nice to use an in-Haskell solution and not have to muck about with the FFI (though if push comes to shove, I'm willing to do that). Any suggestions? * That is also an option, actually; any tips on how to do that would also be appreciated, though I think a library would be easier.

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  • PDFBox: Problem with converting pdf page into image

    - by user552910
    My mission is pretty simple: converting every single page of a pdf file into images. I tried using icepdf open source version to generate the images but they don't generate the image with the correct font. So I start using PDFBox instead. The code is the following: PDDocument document = PDDocument.load(new File("testing.pdf")); List<PDPage> pages = document.getDocumentCatalog().getAllPages(); for (int i = 0; i < pages.size(); i++) { PDPage singlePage = pages.get(i); BufferedImage buffImage = convertToImage(singlePage, 8, 12); ImageIO.write(buffImage, "png", new File(PdfUtil.DATA_OUTPUT_DIR+(count++)+".png")); } The font looks good, but the pictures within the pdf file look fainted out (See the attachment). I look into the source code but I still have no clue how to fix it. Do you guys have any idea what's going on? Please help. Thanks!!

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  • Convert a image to a monochrome byte array

    - by Scott Chamberlain
    I am writing a library to interface C# with the EPL2 printer language. One feature I would like to try to implement is printing images, the specification doc says p1 = Width of graphic Width of graphic in bytes. Eight (8) dots = one (1) byte of data. p2 = Length of graphic Length of graphic in dots (or print lines) Data = Raw binary data without graphic file formatting. Data must be in bytes. Multiply the width in bytes (p1) by the number of print lines (p2) for the total amount of graphic data. The printer automatically calculates the exact size of the data block based upon this formula. I plan on my source image being a 1 bit per pixel bmp file, already scaled to size. I just don't know how to get it from that format in to a byte[] for me to send off to the printer. I tried ImageConverter.ConvertTo(Object, Type) it succeeds but the array it outputs is not the correct size and the documentation is very lacking on how the output is formatted. My current test code. Bitmap i = (Bitmap)Bitmap.FromFile("test.bmp"); ImageConverter ic = new ImageConverter(); byte[] b = (byte[])ic.ConvertTo(i, typeof(byte[])); Any help is greatly appreciated even if it is in a totally different direction.

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  • image onclick event not working

    - by heart_throbber
    im tryin to make a onclick event for my image, but its not workin..the alert is not showing up.. $(document).ready(function(){ $('img.closeAttrIcon').click(function(){ alert("ww"); }); }); even if i try like this with ..bind.. no hope... $(document).ready(function(){ $('img.closeAttrIcon').bind('click',function(){ alert("ww"); }); }); the html will be created during this event: $('a#btnAddStdntAttr').click(function(){ var newAttr = '<div class="attrParent"><br class="clear"><label></label><input type="text" id="stdntAttributeKey1" maxlength="250" style="width: 13%;" name="stdntAttributeKey1"/>'; newAttr+= '<input type="text" id="stdntAttributeValue1" maxlength="250" style="width: 13%;" name="stdntAttributeValue1"/>'; newAttr+= '<img src="<c:url value="/static/images/closeIcon.png"/>" onclick="removeStdntAttr();" class="closeAttrIcon" alt="Close" title="Close" /></div>'; $(this).after(newAttr); }); what am i doing wrong here..please help..

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  • Image.Save(..) throws a GDI+ exception because the memory stream is closed.

    - by Pure.Krome
    Hi folks, i've got some binary data which i want to save as an image. When i try to save the image, it throws an exception if the memory stream used to create the image, was closed before the save. The reason i do this is because i'm dynamically creating images and as such .. i need to use a memory stream. this is the code: [TestMethod] public void TestMethod1() { // Grab the binary data. byte[] data = File.ReadAllBytes("Chick.jpg"); // Read in the data but do not close, before using the stream. Stream originalBinaryDataStream = new MemoryStream(data); Bitmap image = new Bitmap(originalBinaryDataStream); image.Save(@"c:\test.jpg"); originalBinaryDataStream.Dispose(); // Now lets use a nice dispose, etc... Bitmap2 image2; using (Stream originalBinaryDataStream2 = new MemoryStream(data)) { image2 = new Bitmap(originalBinaryDataStream2); } image2.Save(@"C:\temp\pewpew.jpg"); // This throws the GDI+ exception. } Does anyone have any suggestions to how i could save an image with the stream closed? I cannot rely on the developers to remember to close the stream after the image is saved. In fact, the developer would have NO IDEA that the image was generated using a memory stream (because it happens in some other code, elsewhere). I'm really confused :(

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  • selected area to cut an image

    - by Oskar Marciniak
    Hi I would do the selected area to cut an image on picturebox control. I have the following code: using System; using System.Drawing; using System.Windows.Forms; namespace WindowsFormsApplication1 { public partial class Form1 : Form { private Rectangle rect; private Pen p; public Form1() { InitializeComponent(); } private void pictureBox1_Paint(object sender, PaintEventArgs e) { if (this.p == null) this.p = new Pen(Color.FromArgb(100, 200, 200, 200), 5); if (this.rect.Width > 0) e.Graphics.DrawRectangle(this.p, this.rect); } private void pictureBox1_MouseUp(object sender, MouseEventArgs e) { if (e.X < this.rect.X) { this.rect.Width = this.rect.X - e.X; this.rect.X = e.X; } else { this.rect.Width = e.X - this.rect.X; } if (e.Y < this.rect.Y) { this.rect.Height = this.rect.Y - e.Y; this.rect.Y = e.Y; } else { this.rect.Height = e.Y - this.rect.Y; } this.Invalidate(this.rect); } private void pictureBox1_MouseDown(object sender, MouseEventArgs e) { this.rect.X = e.X; this.rect.Y = e.Y; } } } It returns an error here: Application.Run(new Form1()); Why? thanks for all replies ;p

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  • jquery question - addclass to element depending on active image in rotating banner

    - by whitman6732
    I have a banner that rotates a series of three images. The active one has a display:block, while the inactive have display:none. I'm trying to match the class for the active image with an tag so that I can add an "active" class to the a tag. Having some trouble writing that function. It's adding all of the classes for each of the img elements, regardless of whether they're being displayed or not... The html markup looks like this: <div id="banner-area"> <div class="clearfix" id="promo-boxes-nav"> <ul id="banner-tabs"> <li> <ul id="page-tabs"> <li><a class="t39" href="#">1</a></li> <li><a class="t42" href="#">2</a></li> <li><a class="t49" href="#">3</a></li> </ul> </li> <li class="last">&nbsp;</li> </ul> </div> <div id="banner-content"> <img class="t39" src="http://localhost:8888/1.png" style="position: absolute; top: 0px; left: 0px; display: none; opacity: 0;"> <img class="t42" src="http://localhost:8888/2.png" style="position: absolute; top: 0px; left: 0px; display: block; opacity: 1;"> <img class="t49" src="http://localhost:8888/3.png" style="position: absolute; top: 0px; left: 0px; display: none;opacity: 0;"> </div> </div> The function in its current form looks like this: $j(document).ready(function() { $j('#banner-content') .cycle({ fx: 'fade', speed: 300, timeout: 3000, next: '.t1', pause: 1 }); if($j('#page-tabs a').attr('class')) { $j('#banner-content img').each(function() { if($j(this).attr('display','block')) { var bcClass = $j(this).attr('class'); } $j('#page-tabs li a').each(function() { if($j('#page-tabs li a').hasClass(bcClass)) { $j(this).addClass(bcClass); } }); }); } })

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  • Jquery image preview thumbnail doesn't seem to work....

    - by Pandiya Chendur
    I just tried the tooltip like this Easy image preview... But i cant get it to work.... I used this, <style> body { margin:0; padding:40px; background:#fff; font:80% Arial, Helvetica, sans-serif; color:#555; line-height:180%; } h1{ font-size:180%; font-weight:normal; color:#555; } h2{ clear:both; font-size:160%; font-weight:normal; color:#555; margin:0; padding:.5em 0; } a{ text-decoration:none; color:#f30; } p{ clear:both; margin:0; padding:.5em 0; } pre{ display:block; font:100% "Courier New", Courier, monospace; padding:10px; border:1px solid #bae2f0; background:#e3f4f9; margin:.5em 0; overflow:auto; width:800px; } img{border:none;} ul,li{ margin:0; padding:0; } li{ list-style:none; float:left; display:inline; margin-right:10px; } /* */ #preview{ position:absolute; border:1px solid #ccc; background:#333; padding:5px; display:none; color:#fff; } /* */ </style> <script type="text/javascript" src="jquery.js"></script> <ul> <li> <a href="Images/4.jpg" class="preview" title="Lake and a mountain"> <img src="Images/4s.jpg" alt="gallery thumbnail" /> </a> </li> </ul> and included style... Nothing happens when i hover over the anchor tag....

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  • Web image loaded by thread in android

    - by Bostjan
    I have an extended BaseAdapter in a ListActivity: private static class RequestAdapter extends BaseAdapter { and some handlers and runnables defined in it // Need handler for callbacks to the UI thread final Handler mHandler = new Handler(); // Create runnable for posting final Runnable mUpdateResults = new Runnable() { public void run() { loadAvatar(); } }; protected static void loadAvatar() { // TODO Auto-generated method stub //ava.setImageBitmap(getImageBitmap("URL"+pic)); buddyIcon.setImageBitmap(avatar); } In the getView function of the Adapter, I'm getting the view like this: if (convertView == null) { convertView = mInflater.inflate(R.layout.messageitem, null); // Creates a ViewHolder and store references to the two children views // we want to bind data to. holder = new ViewHolder(); holder.username = (TextView) convertView.findViewById(R.id.username); holder.date = (TextView) convertView.findViewById(R.id.dateValue); holder.time = (TextView) convertView.findViewById(R.id.timeValue); holder.notType = (TextView) convertView.findViewById(R.id.notType); holder.newMsg = (ImageView) convertView.findViewById(R.id.newMsg); holder.realUsername = (TextView) convertView.findViewById(R.id.realUsername); holder.replied = (ImageView) convertView.findViewById(R.id.replied); holder.msgID = (TextView) convertView.findViewById(R.id.msgID_fr); holder.avatar = (ImageView) convertView.findViewById(R.id.buddyIcon); holder.msgPreview = (TextView) convertView.findViewById(R.id.msgPreview); convertView.setTag(holder); } else { // Get the ViewHolder back to get fast access to the TextView // and the ImageView. holder = (ViewHolder) convertView.getTag(); } and the image is getting loaded this way: Thread sepThread = new Thread() { public void run() { String ava; ava = request[8].replace(".", "_micro."); Log.e("ava thread",ava+", username: "+request[0]); avatar = getImageBitmap(URL+ava); buddyIcon = holder.avatar; mHandler.post(mUpdateResults); //holder.avatar.setImageBitmap(getImageBitmap(URL+ava)); } }; sepThread.start(); Now, the problem I'm having is that if there are more items that need to display the same picture, not all of those pictures get displayed. When you scroll up and down the list maybe you end up filling all of them. When I tried the commented out line (holder.avatar.setImageBitmap...) the app sometimes force closes with "only the thread that created the view can request...". But only sometimes. Any idea how I can fix this? Either option.

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  • LightSwitch Tutorial - Adding Image to a LightSwitch Screen

    - by ChrisD
    Last week, I have discussed how to control Screen Layouts in LightSwitch. Now, I will talk about how to add an image to the LightSwitch screen. In this demo, I will try to upload the image to the screen and will save the image into the database. The first step we need to do is start the VS 2010, create LightSwitch Desktop application with the name “AddingImageIntoScreenInLSBeta2” as shown in the following figure. The second steps, create a table as shown in the screen by selecting the "create a table" option in the start up screen. Then, we need to add a New Data Screen to our demo application. See the following figure which is the default screen layouts for the screen we have created. So we have to change the layout of this screen so that the uploading and using the image in the screen can be easily explained. Before adding the Model Window we have to prepare the layout. So delete the Highlighted fields as shown in the above figure. After preparing the layout to add the image, just add a new Group to the Person Property Rows Layout. To add a new group, [No: 1] – Select the Rows layout, it will shows you the Add button. [No: 2] – Click the Add button to select the new group. [No: 3] – Select the New Group. After adding the new group change the Layout type to Columns Layout. Here, -          Change the rows layout to columns layouts and give the display name as Uploading Image Example. -          Click on the add button to add the Photo field under the column layout. Add a new group under the Column layout group. Follow the [No: #] to create a new group under the columns layout group. After adding a new group of rows layout add the fields to the newly created group. [No: 1] – Select the Rows Layout group and change the display name as Details. [No: 2] – Click on Add button to select the appropriate fields to add to the group. [No: 3] – Add the fields to the group The above snippet shows the complete layout tree for our screen. Now the screen for uploading the image is ready. Just press the Play button. And see the result.

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  • Image first loaded, then it isn't? (XNA)

    - by M0rgenstern
    I am very confused at the Moment. I have the following Class: (Just a part of the class): public class GUIWindow { #region Static Fields //The standard image for windows. public static IngameImage StandardBackgroundImage; #endregion } IngameImage is just one of my own classes, but actually it contains a Texture2D (and some other things). In another class I load a list of GUIButtons by deserializing a XML file. public static GUI Initializazion(string pXMLPath, ContentManager pConMan) { GUI myGUI = pConMan.Load<GUI>(pXMLPath); GUIWindow.StandardBackgroundImage = new IngameImage(pConMan.Load<Texture2D>(myGUI.WindowStandardBackgroundImagePath), Vector2.Zero, 1024, 600, 1, 0, Color.White, 1.0f, true, false, false); System.Console.WriteLine("Image loaded? " + (GUIWindow.StandardBackgroundImage.ImageStrip != null)); myGUI.Windows = pConMan.Load<List<GUIWindow>>(myGUI.GUIFormatXMLPath); System.Console.WriteLine("Windows loaded"); return myGUI; } Here this line: System.Console.WriteLine("Image loaded? " + (GUIWindow.StandardBackgroundImage.ImageStrip != null)); Prints "true". To load the GUIWindows I need an "empty" constructor, which looks like that: public GUIWindow() { Name = ""; Buttons = new List<Button>(); ImagePath = ""; System.Console.WriteLine("Image loaded? (In win) " + (GUIWindow.StandardBackgroundImage.ImageStrip != null)); //Image = new IngameImage(StandardBackgroundImage); //System.Console.WriteLine( //Image.IsActive = false; SelectedButton = null; IsActive = false; } As you can see, I commented lines out in the constructor. Because: Otherwise this would crash. Here the line System.Console.WriteLine("Image loaded? (In win) " + (GUIWindow.StandardBackgroundImage.ImageStrip != null)); Doesn't print anything, it just crashes with the following errormessage: Building content threw NullReferenceException: Object reference not set to an object instance. Why does this happen? Before the program wants to load the List, it prints "true". But in the constructor, so in the loading of the list it prints "false". Can anybody please tell me why this happens and how to fix it?

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  • How to resize images without loss in quality ?

    - by qWolf
    Hi everybody. I have a image JPEG with resolution is 2010 x 1080 (Pixels). And now, I want resize this image to 338 x 450 without losing image quality, how can I do ? (for ex: After I zoom in image, its quality was not good! ) Which software I can use ? Let me know about a solution. Thanks for all responses ;) Update / Clarification: My purpose is have a page contains image. This image have size is 2010x1080 (in original). First, image display on web page with size is 338x450. Then, to see image more clear, I want to zoom in. But when I do this, image quality was lost. Now, i don't know how to execute this problem :(

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  • Sporadic disk clicking sound

    - by Abdó
    Hi, I'm having some unusual and sporadic hard disk clicking issues. Here is a cronological description of the facts. I'm using an ASUS P6T-SE with Intel Core i7, 6Gb RAM 600W Power supply and ATI4670 graphics, running Ubuntu 10.10. About one month ago my hard disk (SATA II Seagate Barracuda 1Tb 7200 rpm) started making a clicking sound: a sort of loud tic-tac, every second or so, when involved in disk activity. The system was clearly slower than before at disk access, but it was functional and I could not find any signal of trouble on the linux logs. I disconnected the disk and tried an older SATA drive I had around: no problem with it. Then I reconnected the Seagate disk, and the problem was mysteriously gone. Ubuntu booted normally, usual speed, no clicking. A couple of weeks later, the problem reappeared. I tried disconnecting reconnecting (as it somehow solved the problem before) without luck. So, despite it was a rather new drive, I assumed it was a hardware issue, made backups and bought a new drive. The new drive is a SATA II Seagate Barracuda 1.5 Tb 7200 rpm. I installed both drives at the same time, with the intention of transferring my files from on to the other. To my surprise, when I booted the computer with both drives, both started making the clicking sound !! Even worse, I removed the old drive, leaving the unformated new drive connected, and booted from a LiveCD. It kept clicking ! Puzzled by this, I tried both drives on my laptop with a SATA to USB cable. At the moment I connected any of them, they made one or two unusual clicks and immediately stopped doing that and worked normally. The old drive I thought almost dead, was working like a charm as if nothing happened. Then I thought: "ok, it must be the motherboard. Let's try again". So, I reconnected the old drive to the ASUS P6T motherboard (the same cables and SATA port as before), and it worked as if nothing happened ! The problem was gone again. The new 1.5 Tb drive was also working ok: No clicking nor slowdown. So I left the old 1Tb disk connected and kept using the computer daily during 3 weeks, until today it happened again. Now I don't really know what to do or check. I'm not even sure if it is a hardware issue any more ! This is rather annoying as it seems it happens with a period of 2 or 3 weeks and I have no means of forcing it to happen. Does anyone have a clue of what can causes this behaviour or have any suggestions of things I should check when it happens again ? What I did today is checking some SMART parameters Error log: smartctl -l error /dev/sda. No errors Short selftest: smartctl -t short /dev/sda. No errors Disk Health check: smartctl -H /dev/sda. passed And here are the vendor specific parameters (smartctl -A /dev/sda) Which I'm not quite sure how to interpret. === START OF READ SMART DATA SECTION === SMART Attributes Data Structure revision number: 10 Vendor Specific SMART Attributes with Thresholds: ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE 1 Raw_Read_Error_Rate 0x000f 120 099 006 Pre-fail Always - 235962588 3 Spin_Up_Time 0x0003 095 095 000 Pre-fail Always - 0 4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 187 5 Reallocated_Sector_Ct 0x0033 100 100 036 Pre-fail Always - 0 7 Seek_Error_Rate 0x000f 072 060 030 Pre-fail Always - 16348045 9 Power_On_Hours 0x0032 096 096 000 Old_age Always - 3590 10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0 12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 94 183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0 184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0 187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0 188 Command_Timeout 0x0032 100 097 000 Old_age Always - 4295164029 189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0 190 Airflow_Temperature_Cel 0x0022 070 057 045 Old_age Always - 30 (Lifetime Min/Max 19/31) 194 Temperature_Celsius 0x0022 030 043 000 Old_age Always - 30 (0 18 0 0) 195 Hardware_ECC_Recovered 0x001a 037 026 000 Old_age Always - 235962588 197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0 198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0 199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0 240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 73950746906346 241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 1832967731 242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 3294986902 Any clue to this mystery will be really welcome. Thank you very much !!

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  • I have a bunch of CHK files on my USB Drive that used to be my stories that I saved on there. How do I get them back?

    - by Susana
    Ok, so I am not sure why, but my USB flash drive isn't showing all of my stories that I typed and saved. It might be because I removed the USB flash drive without ejecting it safely. All of the data was there on my flash drive, I just couldn't see it. The capacity was almost full so I'm pretty sure the data was there. So, when I decided to run and check to see if there were any problems, the computer found that there were. I think it found my files, but now they are CHK files and I don't know how to get them back. Can someone please help? This is my life's work here!

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  • Css background layers and 100% height div's

    - by Znarkus
    Imagine the following code. <body id="first_bg_layer"> <div id="second_bg_layer"> <div id="third_bg_layer"> </div> </div> </div> Each layer has a different background that is static/repeated to achieve the desired effect. I need all layers to fill up the screen, otherwise the background will be broken. The background is split in layers to minimize the image sizes. Setting min-height to 100% doesn't work for various reasons. Is there any way to do this?

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  • 2D pixel array rotation and scaling

    - by Betamoo
    Hi I am working on C# program to process images ( given as int[,] ).. So I have 2D array of pixels, and I need to rotate them around a point, then scale them down to fit the original array.. I already found articles about using matrix to transform to a point and rotate then transform back.. What remains is to scale the resultant image to fit an array of original size.. How that can be done? (preferably with 2 equations one for x and one for y ) Thanks in advance

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  • linux raid 1: right after replacing and syncing one drive, the other disk fails - understanding what is going on with mdstat/mdadm

    - by devicerandom
    We have an old RAID 1 Linux server (Ubuntu Lucid 10.04), with four partitions. A few days ago /dev/sdb failed, and today we noticed /dev/sda had pre-failure ominous SMART signs (~4000 reallocated sector count). We replaced /dev/sdb this morning and rebuilt the RAID on the new drive, following this guide: http://www.howtoforge.com/replacing_hard_disks_in_a_raid1_array Everything went smooth until the very end. When it looked like it was finishing to synchronize the last partition, the other old one failed. At this point I am very unsure of the state of the system. Everything seems working and the files seem to be all accessible, just as if it synchronized everything, but I'm new to RAID and I'm worried about what is going on. The /proc/mdstat output is: Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10] md3 : active raid1 sdb4[2](S) sda4[0] 478713792 blocks [2/1] [U_] md2 : active raid1 sdb3[1] sda3[2](F) 244140992 blocks [2/1] [_U] md1 : active raid1 sdb2[1] sda2[2](F) 244140992 blocks [2/1] [_U] md0 : active raid1 sdb1[1] sda1[2](F) 9764800 blocks [2/1] [_U] unused devices: <none> The order of [_U] vs [U_]. Why aren't they consistent along all the array? Is the first U /dev/sda or /dev/sdb? (I tried looking on the web for this trivial information but I found no explicit indication) If I read correctly for md0, [_U] should be /dev/sda1 (down) and /dev/sdb1 (up). But if /dev/sda has failed, how can it be the opposite for md3 ? I understand /dev/sdb4 is now spare because probably it failed to synchronize it 100%, but why does it show /dev/sda4 as up? Shouldn't it be [__]? Or [_U] anyway? The /dev/sda drive now cannot even be accessed by SMART anymore apparently, so I wouldn't expect it to be up. What is wrong with my interpretation of the output? I attach also the outputs of mdadm --detail for the four partitions: /dev/md0: Version : 00.90 Creation Time : Fri Jan 21 18:43:07 2011 Raid Level : raid1 Array Size : 9764800 (9.31 GiB 10.00 GB) Used Dev Size : 9764800 (9.31 GiB 10.00 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Tue Nov 5 17:27:33 2013 State : clean, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 1 Spare Devices : 0 UUID : a3b4dbbd:859bf7f2:bde36644:fcef85e2 Events : 0.7704 Number Major Minor RaidDevice State 0 0 0 0 removed 1 8 17 1 active sync /dev/sdb1 2 8 1 - faulty spare /dev/sda1 /dev/md1: Version : 00.90 Creation Time : Fri Jan 21 18:43:15 2011 Raid Level : raid1 Array Size : 244140992 (232.83 GiB 250.00 GB) Used Dev Size : 244140992 (232.83 GiB 250.00 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 1 Persistence : Superblock is persistent Update Time : Tue Nov 5 17:39:06 2013 State : clean, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 1 Spare Devices : 0 UUID : 8bcd5765:90dc93d5:cc70849c:224ced45 Events : 0.1508280 Number Major Minor RaidDevice State 0 0 0 0 removed 1 8 18 1 active sync /dev/sdb2 2 8 2 - faulty spare /dev/sda2 /dev/md2: Version : 00.90 Creation Time : Fri Jan 21 18:43:19 2011 Raid Level : raid1 Array Size : 244140992 (232.83 GiB 250.00 GB) Used Dev Size : 244140992 (232.83 GiB 250.00 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 2 Persistence : Superblock is persistent Update Time : Tue Nov 5 17:46:44 2013 State : clean, degraded Active Devices : 1 Working Devices : 1 Failed Devices : 1 Spare Devices : 0 UUID : 2885668b:881cafed:b8275ae8:16bc7171 Events : 0.2289636 Number Major Minor RaidDevice State 0 0 0 0 removed 1 8 19 1 active sync /dev/sdb3 2 8 3 - faulty spare /dev/sda3 /dev/md3: Version : 00.90 Creation Time : Fri Jan 21 18:43:22 2011 Raid Level : raid1 Array Size : 478713792 (456.54 GiB 490.20 GB) Used Dev Size : 478713792 (456.54 GiB 490.20 GB) Raid Devices : 2 Total Devices : 2 Preferred Minor : 3 Persistence : Superblock is persistent Update Time : Tue Nov 5 17:19:20 2013 State : clean, degraded Active Devices : 1 Working Devices : 2 Failed Devices : 0 Spare Devices : 1 Number Major Minor RaidDevice State 0 8 4 0 active sync /dev/sda4 1 0 0 1 removed 2 8 20 - spare /dev/sdb4 The active sync on /dev/sda4 baffles me. I am worried because if tomorrow morning I have to replace /dev/sda, I want to be sure what should I sync with what and what is going on. I am also quite baffled by the fact /dev/sda decided to fail exactly when the raid finished resyncing. I'd like to understand what is really happening. Thanks a lot for your patience and help. Massimo

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