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• Firefox: tabs containing a single image sometimes show generic icon instead of thumbnail

  - by ??O?????

  My version of Firefox is 3.5.9, but I've had this issue since single-image tabs started showing a thumbnail of the contained image. Typically, a tab containing a single image will use a thumbnail of the image as the icon before the tab title. Sometimes, though, this icon will be the generic “shaded sphere on blank page” (or perhaps whatever your theme defaults to). I'm guessing this happens whenever height or width is larger than 1024, but I seem to recall (perhaps erroneously) exceptions to this rule. Anyway, hopefully someone will know the definite answer to: Why does this happen? Examples Images showing thumbnails Wikipedia/Natalie Portman #1 (600×887) Wikipedia/Natalie Portman #2 (789×1024) Images not showing thumbnails Wikipedia/BMW series 3 cars (1276×338) Wikipedia/Greek temple (2414×1740)

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• Best technique for reusing a Windows system image across configurations

  - by Martin Wiboe

  We are a small company that provides solutions for ventilation systems. Part of the solution is a "controller" which communicates with the ventilation equipment. These controllers are simply Dell computers that come with our Windows 7 system image on them and sometimes some special hardware. We typically do a batch of 10 controllers at a time. We have been using Norton Ghost to apply the system image, but this process breaks because Dell changes the system configuration often, and our Windows image now does not contain the correct drivers. This is especially a problem when they change the RAID controller. To improve this, I see 2 options: use some kind of virtualization and install a hypervisor on each PC. This would solve the driver problem, but probably cause trouble with our special hardware. use some method of adding the proper drivers to our Windows image in offline mode. I haven't got much experience in either of these approaches. How would you solve our problem?

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• IIS7 How to serve a default 404 image when an image is requested?

  - by Lucifer

  How can I get IIS7 to serve a default image instead of a 404 html page, when an image is requested? e.g. request for: http://www.example.com/myImage.jpg myImage.jpg does not exist, so we deliver another image instead?

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• IDE compatability with SATA image

  - by Ormis

  We had an old CNC machine's hard-drive fail recently. The hard-drive is an old 1275MB IDE (Seagate) and there were defiantly bad sectors on it. I was able to image the contents of the drive onto a drive in my computer before it became completely unusable (I used DD, replacing all bad sectors w/ 0s). After running a couple chdsks, the SATA drive will boot off of the image. This is great, but there's one problem. The CNC machine old and requires IDE, I've attempted to copy the currently booting image off of the SATA drive and onto IDE drives numerous times in numerous ways and every time I do so the machines return that a boot device cannot be found. Some other information: The file system is fat32, running windows 98 The SATA drive is an 80gb drive I have tried copying the image to three 20gb and two 80gb IDE drives I have checked the jumper on the back of the IDE drives when using them If anyone has any ideas, questions, suggestions, etc. please let me know. P.S. I would just put a fresh install of win98 on the machine if i had the installation media (so that's out of the question). And if it comes to it, this is my last week working here, so I'll leave that to my co-worker. EDIT: Also, I have tried using Clonezilla as well as straight up DD to copy the image to the IDE drives.

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• how do i determine the image compression algorithm

  - by klijo

  i have a folder containing images. I need to determine the image compression algorithm used in them. Image format is TIFF. Is there a program that i can use to do this ? A program that runs on windows or Linux is ok. When i do a file it gives 100 (2).tif: TIFF image data, little-endian 100.tif: TIFF image data, little-endian It doesnt say which type of algorithm it uses. whether its lossy or lossless and the name of it ?

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• How to add an image as a full-page background in Word 2010

  - by Oak

  I'm trying to add an image as a full-page background in word. I've tried page layout -> page color -> fill effect -> picture which looks fine in the preview (though when I try to zoom in or out it no longer looks the same), but when printing it tiled the image instead of just showing it once. I've tried insert -> picture and then setting it to "behind text" and settings its location to (0,0), but then when trying to change the image size the "relative" option is greyed out, so I can't set it to 100% of page size: I guess I can set it manually to the page size, but is there another, simpler way to just set a single image as a background?

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• Take a regular Windows 7 clone with clonezilla (device-to-image)

  - by Mario De Schaepmeester

  I am unexperienced with cloning software and I've decided to use Clonezilla as it seemed best as freeware. I chose device image and left most options standard. I chose expert mode anyway to see what I could configure, and decided to try the lzop algorithm instead of the default one for compression. The rest was left at default. When Clonezilla asked me which partitions to clone (I chose parts to image), I chose the C:\ drive but Windows 7 also creates a 100MB partition on setup for system files (the actual boot partition?). I copied that into the image as well. The reason I didn't choose disk to image is that I also have a data partition that needs to stay intact. Now I'm simply not sure that this is the way to go, should I ever need to restore my disk image. Will Clonezilla know what to do with both partitions and will Windows 7 work perfectly after restoring? Edit: apparantly a similar question has been asked before. The link to the first article in the answer is not relevant to me since it covers a device-to-device clone. It appears the windows installation disk can repair the 100MB partition. As for Clonezilla, it copies "hidden data after the MBR" by default too. I don't know, I feel I'll be allright whether by restoring the partition with Clonezilla or repairing it with the Windows 7 disk.

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• Copy image location in vimperator

  - by wcoenen

  When using vimperator, how do I do the equivalent of right-clicking an image and clicking "copy image location"?

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• Preparing a hyper-v VM image

  - by Anteru

  We have a Hyper-V Windows Server 2k3, and we're hosting multiple VMs on it. However, right now, we always start the VM creation right on the server, i.e. when preparing a new Ubuntu image, I just install it into a new VM and set it up and when I'm happy we store the disk image. I wonder if there is a way to prepare a hyper-v image locally on my desktop machine instead? I'm running Windows 7, and I would love to be able to set up a VM so that we can copy the image over to the server and be done with it. This is for linux images only, and we definitely need the hyperv network integration. Is there a recommended way how to prepare hyperv images without running a hyperv instance somewhere?

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• Best way to render card images

  - by user1065145

  I have high-quality SVG card images, but they drastically lose their quality when I downsize them. I have tried two ways of rendering cards (using Inkscape and Imagemagics): 1) Render SVG to high-res PNG and resize it then; 2) Render SVG to image of proper size at once. Both approaches generate blurry card images, which looks even worse than old Windows cards. What are the best way to generate smaller card images from SVG sources and not to loose their quality a lot?

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• How to insert images using labels in NetBeans IDE, Java? [migrated]

  - by Vaishnavi Kanduri

  I'm making a virtual mall using NetBeans IDE 7.3.1 I inserted images using the following steps: Drag and drop label onto frame Go to label properties Click on ellipsis of 'icon' option Import to project, select desired image Resize or reposition it accordingly. Then, I saved the project, copied the project folder into a pendrive, tried to 'Open Project' in mate's laptop, using the same Java Netbeans IDE version. When I tried to open the frames, they displayed empty labels, without images. What went wrong?

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• solve a classic map-reduce problem with opencl?

  - by liuliu

  I am trying to parallel a classic map-reduce problem (which can parallel well with MPI) with OpenCL, namely, the AMD implementation. But the result bothers me. Let me brief about the problem first. There are two type of data that flow into the system: the feature set (30 parameters for each) and the sample set (9000+ dimensions for each). It is a classic map-reduce problem in the sense that I need to calculate the score of every feature on every sample (Map). And then, sum up the overall score for every feature (Reduce). There are around 10k features and 30k samples. I tried different ways to solve the problem. First, I tried to decompose the problem by features. The problem is that the score calculation consists of random memory access (pick some of the 9000+ dimensions and do plus/subtraction calculations). Since I cannot coalesce memory access, it costs. Then, I tried to decompose the problem by samples. The problem is that to sum up overall score, all threads are competing for few score variables. It keeps overwriting the score which turns out to be incorrect. (I cannot carry out individual score first and sum up later because it requires 10k * 30k * 4 bytes). The first method I tried gives me the same performance on i7 860 CPU with 8 threads. However, I don't think the problem is unsolvable: it is remarkably similar to ray tracing problem (for which you carry out calculation that millions of rays against millions of triangles). Any ideas?

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• AutoMapper How To Map Object A To Object B Differently Depending On Context

  - by IanT8

  Calling all AutoMapper gurus! I'd like to be able to map object A to object B differently depending on context at runtime. In particular, I'd like to ignore certain properties in one mapping case, and have all properties mapped in another case. What I'm experiencing is that Mapper.CreateMap can be called successfully in the different mapping cases however, once CreateMap is called, the map for a particular pair of types is set and is not subsequently changed by succeeding CreateMap calls which might describe the mapping differently. I found a blog post which advocates Mapper.Reset() to get round the problem, however, the static nature of the Mapper class means that it is only a matter of time before a collision and crash occur. Is there a way to do this? What I think I need is to call Mapper.CreateMap once per appdomain, and later, be able to call Mapper.Map with hints about which properties should be included / excluded. Right now, I'm thinking about changing the source code by writing a non-static mapping class that holds the mapping config instance based. Poor performance, but thread safe. What are my options. What can be done? Automapper seems so promising.

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• AndEngine VS Android's Canvas VS OpenGLES - For rendering a 2D indoor vector map

  - by Orchestrator

  This is a big issue for me I'm trying to figure out for a long time already. I'm working on an application that should include a 2D vector indoor map in it. The map will be drawn out from an .svg file that will specify all the data of the lines, curved lines (path) and rectangles that should be drawn. My main requirement from the map are Support touch events to detect where exactly the finger is touching. Great image quality especially when considering the drawings of curved and diagonal lines (anti-aliasing) Optional but very nice to have - Built in ability to zoom, pan and rotate. So far I tried AndEngine and Android's canvas. With AndEngine I had troubles with implementing anti-aliasing for rendering smooth diagonal lines or drawing curved lines, and as far as I understand, this is not an easy thing to implement in AndEngine. Though I have to mention that AndEngine's ability to zoom in and pan with the camera instead of modifying the objects on the screen was really nice to have. I also had some little experience with the built in Android's Canvas, mainly with viewing simple bitmaps, but I'm not sure if it supports all of these things, and especially if it would provide smooth results. Last but no least, there's the option of just plain OpenGLES 1 or 2, that as far as I understand, with enough work should be able to support all the features I require. However it seems like something that would be hard to implement. And I've never programmed in OpenGL or anything like it, but I'm willing very much to learn. To sum it all up, I need a platform that would provide me with the ability to do the 3 things I mentioned before, but also very important - To allow me to implement this feature as fast as possible. Any kind of answer or suggestion would be very much welcomed as I'm very eager to solve this problem! Thanks!

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• How to capture page with google map?

  - by Max

  I have a UIComponent with Google map in the continer. I need to capture this container for making a preview. My integration looks like the following: <mx:UIComponent id="mapContainer" width="410" height="300" /> googleMap = new Map(); mapContainer.addChild(googleMap); But if I do("this" - is my UIComponent) var bmd:BitmapData = new BitmapData(this.width, this.height, true, 0x00ffffff); bmd.draw(this); I see the following: An ActionScript error has occurred: SecurityError: Error #2123: Security sandbox violation: BitmapData.draw: http://localhost/ cannot access http://mt1.google.com/vt/lyrs=m@121&hl=en&src=api&x=1&y=1&z=1&s=Gali. No policy files granted access. at flash.display::BitmapData/draw() I now, that I can to add it host to allowed on the custom client. But I need to have working system on any computer ) I've tried to hide it: templateGoogleMapRenderer.mapContainer.setVisible(false); templateGoogleMapRenderer.mapContainer.includeInLayout = false; But it was unsuccessfully. May be I can override some method in my UIComponent, that flex use during BitmapData/draw() ? Capture with hidden map is success result for me )

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• Finding unreachable sections of a 2D map

  - by dada

  I don't want you to solve this problem for me, i just want to ask for some ideas. This is the input below, and it represents a map. The 'x' represents land, and the dots - water. So with the 'x' you can represent 'islands' on the map. xxx.x...xxxxx xxxx....x...x ........x.x.x ..xxxxx.x...x ..x...x.xxx.x ..x.x.x...x.. ..x...x...xxx ...xxxxxx.... x............ As you can see, there are some islands which are closed, i.e. if some boat is inside its territory, it won't be able to get out, for ex: ..xxxxx. ..x...x. ..x.x.x. ..x...x. ..xxxxx. And there are some open islands which is possible to get out of them, ex: .xxxxx .x...x .x.x.x .xxx.x The problem is this: For a given NxM map like those above, calculate howm any of the islands are open, and how many are closed. I repeat: I don't want you to solve it, just need some sugestions, ideas for solving. thanks

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• Using map/reduce for mapping the properties in a collection

  - by And

  Update: follow-up to MongoDB Get names of all keys in collection. As pointed out by Kristina, one can use Mongodb 's map/reduce to list the keys in a collection: db.things.insert( { type : ['dog', 'cat'] } ); db.things.insert( { egg : ['cat'] } ); db.things.insert( { type : [] }); db.things.insert( { hello : [] } ); mr = db.runCommand({"mapreduce" : "things", "map" : function() { for (var key in this) { emit(key, null); } }, "reduce" : function(key, stuff) { return null; }}) db[mr.result].distinct("_id") //output: [ "_id", "egg", "hello", "type" ] As long as we want to get only the keys located at the first level of depth, this works fine. However, it will fail retrieving those keys that are located at deeper levels. If we add a new record: db.things.insert({foo: {bar: {baaar: true}}}) And we run again the map-reduce +distinct snippet above, we will get: [ "_id", "egg", "foo", "hello", "type" ] But we will not get the bar and the baaar keys, which are nested down in the data structure. The question is: how do I retrieve all keys, no matter their level of depth? Ideally, I would actually like the script to walk down to all level of depth, producing an output such as: ["_id","egg","foo","foo.bar","foo.bar.baaar","hello","type"] Thank you in advance!

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• Java map with values limited by key's type parameter

  - by Ashley Mercer

  Is there a way in Java to have a map where the type parameter of a value is tied to the type parameter of a key? What I want to write is something like the following: public class Foo { // This declaration won't compile - what should it be? private static Map<Class<T>, T> defaultValues; // These two methods are just fine public static <T> void setDefaultValue(Class<T> clazz, T value) { defaultValues.put(clazz, value); } public static <T> T getDefaultValue(Class<T> clazz) { return defaultValues.get(clazz); } } That is, I can store any default value against a Class object, provided the value's type matches that of the Class object. I don't see why this shouldn't be allowed since I can ensure when setting/getting values that the types are correct. EDIT: Thanks to cletus for his answer. I don't actually need the type parameters on the map itself since I can ensure consistency in the methods which get/set values, even if it means using some slightly ugly casts.

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• Serializing and deserializing a map with key as string

  - by Grace K

  Hi! I am intending to serialize and deserialize a hashmap whose key is a string. From Josh Bloch's Effective Java, I understand the following. P.222 "For example, consider the case of a harsh table. The physical representation is a sequence of hash buckets containing key-value entries. Which bucket an entry is placed in is a function of the hash code of the key, which is not, in general guaranteed to be the same from JVM implementation to JVM implementation. In fact, it isn't even guranteed to be the same from run to run on the same JVM implementation. Therefore accepting the default serialized form for a hash table would constitute a serious bug. Serializing and deserializing the hash table could yield an object whose invariants were seriously corrupt." My questions are: 1) In general, would overriding the equals and hashcode of the key class of the map resolve this issue and the map can be correctly restored? 2) If my key is a String and the String class is already overriding the hashCode() method, would I still have problem described above. (I am seeing a bug which makes me think this is probably still a problem even though the key is String with overriding hashCode.) 3)Previously, I get around this issue by serializing an array of entries (key, value) and when deserializing I would reconstruct the map. I am wondering if there is a better approach. 4) If the answers to question 1 and 2 are that I still can't be guaranteed. Could someone explain why? If the hashCodes are the same would they go to the same buckets across JVMs? Thanks, Grace

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• Interactive World Map, highlight countries on mouseover

  - by BrenGG

  I need to create an interactive world map on the front page of a site, the view portal will be about 650x200 pixels. The interactivity would include the following, mouse-over a country would highlight (the countries are will literally be filled with "red" for example) that country and display the countries' name (preferably text in a div), I will also be linking the highlighting event with a that will highlight a country when selected. I am having a difficult time finding a suitable solution, I refuse to use or learn a proprietry technology such as flash so it is not an option. I created a simple mockup using openlayers and a custom map image but the countries' markers load too slowly in IE6. Also svg seems too large, as I tried to use RaphaelJS, but abondoned it when I realised the world map data is 1.2mb which is totally un acceptable for the front page of a site.. I am really at a loss on how I am going to do this, my last resort is to manually create 250+ (however many countries there are) pngs and apply mouseover events to hotspots in the image... but this is probably going to be a dead end too.. desperately seeking a solution, any helpful comments will be appreciated!

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• Refactoring routes - serving different layouts

  - by dmclark

  As a Rails NOOB, I started with a routes.rb of: ActionController::Routing::Routes.draw do |map| map.resources :events map.connect 'affiliates/list', :controller => "affiliates", :action => "list" map.connect 'affiliates/regenerate_thumb/:id', :controller => "affiliates", :action => "regenerate_thumb" map.connect 'affiliates/state/:id.:format', :controller => "affiliates", :action => "find_by_state" map.connect 'affiliates/getfeed', :controller => "affiliates", :action => "feed" map.resources :affiliates, :has_many => :events map.connect ":controller/:action" map.connect '', :controller => "affiliates" map.connect ":controller/:action/:id" map.connect ":controller/:action/:id/:format" end and i'm trying to tighten it up. and I've gotten as far as: ActionController::Routing::Routes.draw do |map| map.resources :events, :only => "index" map.resources :affiliates do |affiliates| affiliates.resources :has_many => :events affiliates.resources :collection => { :list => :get, :regenerate_thumb => "regenerate_thumb" } end # map.connect 'affiliates/regenerate_thumb/:id', :controller => "affiliates", :action => "regenerate_thumb" map.connect 'affiliates/state/:id.:format', :controller => "affiliates", :action => "find_by_state" map.connect 'affiliates/getfeed', :controller => "affiliates", :action => "feed" map.root :affiliates end what is confusing to me is routes vs parameters.. For example, I realized that the only difference between list and index is HOW it is rendered, rather than WHAT is rendered. Having a different action (as I do now) feels wrong but I can't figure out he right way. Thanks

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• How to Map Two Tables To One Class in Fluent NHibernate

  - by Richard Nagle

  I am having a problem with fluent nhiberbate mapping two tables to one class. I have the following database schema: TABLE dbo.LocationName ( LocationId INT PRIMARY KEY, LanguageId INT PRIMARY KEY, Name VARCHAR(200) ) TABLE dbo.Language ( LanguageId INT PRIMARY KEY, Locale CHAR(5) ) And want to build the following class definition: public class LocationName { public virtual int LocationId { get; private set; } public virtual int LanguageId { get; private set; } public virtual string Name { get; set; } public virtual string Locale { get; set; } } Here is my mapping class: public LocalisedNameMap() { WithTable("LocationName"); UseCompositeId() .WithKeyProperty(x => x.LanguageId) .WithKeyProperty(x => x.LocationId); Map(x => x.Name); WithTable("Language", lang => { lang.WithKeyColumn("LanguageId"); lang.Map(x => x.Locale); }); } The problem is with the mapping of the Locale field being from another table, and in particular that the keys between those tables don't match. Whenever I run the application with this mapping I get the following error on startup: Foreign key (FK7FC009CCEEA10EEE:Language [LanguageId])) must have same number of columns as the referenced primary key (LocationName [LanguageId, LocationId]) How do I tell nHibernate to map from LocationName to Language using only the LanguageId field?

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• How to copy_if from map to vector?

  - by VJo

  I'd like to copy values that match a predicate (equal ints) from a map<string,int> to a vector<int>. This is what I tried: #include <map> #include <vector> #include <algorithm> int main() { std::vector< int > v; std::map< std::string, int > m; m[ "1" ] = 1; m[ "2" ] = 2; m[ "3" ] = 3; m[ "4" ] = 4; m[ "5" ] = 5; std::copy_if( m.begin(), m.end(), v.begin(), [] ( const std::pair< std::string,int > &it ) { return ( 0 == ( it.second % 2 ) ); } ); } The error message from g++ 4.6.1 is : error: cannot convert 'std::pair<const std::basic_string<char>, int>' to 'int' in assignment Is there a way to adjust the example to do the above copy?

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• direction line color google map v2

  - by user1328645

  I'm using this code to change direction line color in google map v2, but still it won't work even after using getpolyine? How can I change it? ` function direction() { var txtAddress = document.getElementById("<%=txtAddress.ClientID %>"); var address = txtAddress.value; var TextBox1 = document.getElementById("<%=TextBox1.ClientID %>"); var address1 = TextBox1.value; directions = new GDirections(map, directionsPanel); directions.load("from: " + address1 + " to: " + address + "", { getPolyline: true }); setTimeout(handle, 1000); // var address =txtAddress.value + " " + TextBox3.value; } function handle() { var points = []; var poly = direction.getPolyline(); for (var i = o; i < poly.getVertexCount(); i++) { points[i] = poly.getVertex(i); } var mypoly = new GPolyline(point, "#ff627", 3, 1) map.addOverlay(mypoly); } `

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• Correct way to load image into UIWebView from NSData object

  - by rustyshelf

  I have downloaded a gif image into an NSData object (I've checked the contents of the NSData object and it's definitely populated). Now I want to load that image into my UIWebView. I've tried the following: [webView loadData:imageData MIMEType:@"image/gif" textEncodingName:nil baseURL:nil]; but I get a blank UIWebView. Loading the image from the same URL directly works fine: NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:imageUrl]]; [imageView loadRequest:request]; Do I need to set the textEncodingName to something, or am I doing something else wrong? I want to load the image manually so I can report progress to the user, but it's an animated gif, so when it's done I want to show it in a UIWebView. Edit: Perhaps I need to wrap my image in HTML somehow? Is there a way to do this without having to save it to disk?

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