pixels

Question is simple so, no codes! If someone knows Box2D and SDL2, then, please tell me how to wrap SDL_Rect with b2body. Ofcourse, it requires to know the conversion of metre to pixel and vice versa. This is because Box2D measures distance in metres. Can you give me a simple expression or function to convert metres(of Box2D) to pixels or pixels to metres(of Box2D)? Can you give me a simple expression or function to convert metres(of Box2D) to pixels or pixels to metres(of Box2D)? Unfortunately, this isn't as simple as it sounds, for us. Because, if your game is on worms, then your game world

What is the fastest way to get the RGB value of each pixel of a BufferedImage ? Right now I am getting the RGB values using two for loops as shown in the code below, but it took too long to get those values as the nested loop runs a total of 479999 times for my image. If I use a 16-bit image this number would be even higher! I need a faster way to get the pixel values. Here is the code I am currently trying to work with: BufferedImage bi=ImageIO.read(new File("C:\\images\\Sunset.jpg")); int countloop=0; for (int x = 0; x <bi.getWidth(); x++) { for (int y = 0; y < bi.getHeight(); y++) { Color c

I'm currently working on a website redesign and I'm receiving a list with the required changes from an agency. The header menu of the site currently has the following styles: line-height: 1em; font-size: 11px; In one of the documents I have received there's a change request that requires me to change those styles to: line-height: 1.2em; font-size: 11.5px; I know that the EMs are OK with the decimal values but what does half a pixel mean in the font size? I have tried to change the font size using the inspector from 12 to 11.5 and to 11 and the change from 11 to 11.5 is visible but the one from

I get the pixels from BufferedImage using the method getRGB() . The pixels are stored in array called data[] . After some manipulation on data array, I need to create a BufferedImage again so that I can pass it to a module which will display the modified image, from this data array, but I am stuck with it. BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Then set the pixels again. bufferedImage.setRGB(x, y, your_value); PS: as stated in the comments, please use the answer from @TacticalCoder I get the pixels from the BufferedImage using the method

I have tried to make an algorithm in java to rotate a 2-d pixel array(Not restricted to 90 degrees), the only problem i have with this is: the end result leaves me with dots/holes within the image. Here is the code : for (int x = 0; x < width; x++) { for (int y = 0; y < height; y++) { int xp = (int) (nx + Math.cos(rotation) * (x - width / 2) + Math .cos(rotation + Math.PI / 2) * (y - height / 2)); int yp = (int) (ny + Math.sin(rotation) * (x - width / 2) + Math .sin(rotation + Math.PI / 2) * (y - height / 2)); int pixel = pixels[x + y * width]; Main.pixels[xp + yp * Main.WIDTH] = pixel; } }

Is it possible to read pixels of an image in canvas A and create pixels on canvas B? And I want to create the new pixels on Canvas B only where the image's pixels are green. eg. If images' pixel (120,45) is green I need to create a green colored pixel in Canvas B at (120,45) Niklas You can use canvas ImageData to get color values for each pixels. The function: context.getImageData(left, top, width, height); returns an ImageData object, which consists of the following properties: width height data ( CanvasPixelArray ) The CanvasPixelArray contains the RGBA values for all the pixels, starting

I'm programming VBA for Word 2007. I've created a UserForm which I need to resize with script. I noticed that its not pixels Me.Width = pixelW // form appears about 20% larger than the pixel width And its not twips either Me.Width = (((1 / TwipsPerPixelX()) * pixelW)) / 1) // form appears very small So how are form widths and heights measured in Office 2007 VBA? When manipulating controls on forms through code the sizes are in twips by default (I believe if you change the form's ScaleMode property you can choose to use another unit). Your conversion formula is wrong (it's easy to get wrong).