I want to use CSS sprites on a web site instead of separate image files, for a large collection of small icons that are all the same size. How can I concatenate (tile) them into one big image using ImageMagick? ...
I need a very fast algorithm for the following task. I have already implemented several algorithms that complete it, but they're all too slow for the performance I need. It should be fast enough that the algorithm can be run at least 100,000 times a second on a modern CPU. It will be implemented in C++. I am working with spans/ranges, a...
I'm a CompSci student, and fairly new at C#, and I was doing a "Josephus Problem" program for a class, and I created an Exit button that calls Application.Exit() to exit at anytime, but if C# is still working on painting and the button is pressed it throws an ObjectDisposedExeception for the Graphics object. Is there any way to prevent t...
Any suggestion for a JS interactive drawing library? Just need to draw lines, polygons, texts of different colors. IE/Firefox/Opera/Safari compatible. ...
How to test if a line segment intersects an axis-aligned rectange in 2D? The segment is defined with its two ends: p1, p2. The rectangle is defined with top-left and bottom-right points. ...
We have a graphics intensive application that seems to be experiencing problems on AMD 64 bit Dual Core platforms that are not apparent on Intel platforms. Running the application causes the CPU to run at 100%, in particular when using code for shadows and lighting (Open GL). Does anyone know of specific issues with AMD processors that...
What version control systems would be useful or have extra features to support projects that are mainly binary files like mp3, wav, or proprietary application-specific file types? ...
I need to put an alpha blended gradient border around an image. My problem is in blending the corners so they are smooth where the horizontal and vertical gradients meet. I believe there is a standard algorithm that solves this problem. I think I even encountered it in school many years ago. But I have been unsuccessful in finding any...
Given an arbitrary sequence of points in space, how would you produce a smooth continuous interpolation between them? 2D and 3D solutions are welcome. Solutions that produce a list of points at arbitrary granularity and solutions that produce control points for bezier curves are also appreciated. Also, it would be cool to see an itera...
I'm trying to find/make an algorithm to compute the intersection (a new filled object) of two arbitrary filled 2D objects. The objects are defined using either lines or cubic beziers and may have holes or self-intersect. I'm aware of several existing algorithms doing the same with polygons, listed here. However, I'd like to support bezie...
I have a report that I built for a client where i need to plot x 0-100, y 0-100. Lets imagine I have these points: 0,0 2,24 50,70 100,100 I need to represent these as a smoothed line chart, as the application of it is a dot gain graph for printing presses. Heres the problem. The line draws fine from 100,100 (top right) down to 2,24. B...
Anyone know? Want to be able to on the fly stamp an image with another image as a watermark, also to do large batches. Any type of existing library or a technique you know of would be great. ...
. Inspiration -- Southpark game (very popular if you see download count on download.com ,,, did he ask for permission ??) I am making a 2d game based on dexter's lab theme. I've got the sprite of dexter from GSA. basically I'm not an artist, so I have to depend on already available sprites, backgrounds, sfx on websites like GameSpr...
I am looking for a high-performance graphic library for .NET and Mono. I have taken a look at Tao framework and, while it is very complete, it's quite lacking in terms of usability. It should be cross-platform compatible. What other alternatives worked for you? ...
As a programmer, I don't have the best design skills. I often find the need to have a single graphic or even an entire web site designed. What sites have you used to get the graphics you needed and would you use them again? ...
I have this view set: glMatrixMode(GL_MODELVIEW); //Switch to the drawing perspective glLoadIdentity(); //Reset the drawing perspective and I get a screen position (sx, sy) from a mouse click. Given a value of z, how can I calculate x and y in 3d-space from sx and sy? ...
How do I get the current size of a matrix stack (GL_MODELVIEW, GL_PROJECTION, GL_TEXTURE) in OpenGL? I want this so that I can do some error checking to ensure that in certain parts of the code I can check that the matrix stacks have been left in the original condition. ...
It has been a few years since I used Actionscript. Back in the day, I made a project that emulated a QTVR panorama (at the time I was using Flash, you could only embed very basic mov files) by simply moving a very long flattened pano image left or right behind a mask. The effect was okay, but not as nice as a real pano, since the perspec...
I'm looking for an algorithm to detect if two rectangles intersect (one at an arbitrary angle, the other with only vertical/horizontal lines). Testing if a corner of one is in the other ALMOST works. It fails if the rectangles form a cross-like shape. It seems like a good idea to avoid using slopes of the lines, which would require sp...
When doing small icons, header graphics and the like for websites, is it better to use GIFs or PNGs? Obviously if transparency effects are required, then PNGs are definitely the way to go, and for larger, more photographic images I'd use JPEGs - but for normal web "furniture", which would you recommend and why? It may just be the tools...