graphics

how to perform mouse on click action in selected area in java paint using swings

import java.awt.*; import java.awt.image.*; import javax.swing.*; import java.awt.event.*; public class MouseAct extends JFrame{ public static void main(String args[]){ MouseAct M= new MouseAct(); M.paint1(); } public void paint1(){ setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE ); setSize(640,480); // show(); ...

How to log Mac OS X graphics card driver

In my Mac OS X application, I would like to log the user's graphics card driver and model. What is the appropriate API to use? ...

QT or GTK for an embedded real-time display system based on Linux

We are trying to develop a real-time display system in safety critical domain. (All this is at very basic stage.) One option I have is to write my own Widgets using OpenGL. Other two options is to use something like GTK or QT. QT seems easy to use and has good development tools. But I have worked on several applications in real-time dom...

extends GraphicsProgram

I'm watching the Programming Methodology from Stanford on Youtube and professor uses the GraphicsProgram as a bacis class for the class he creates. I do: public class Test extends GraphicsProgram { public static void main(String[] args) { } } But getting the error that GraphicsProgram can't be resolved to a type. I clicked ctrl+...

[Graphics]Line-tracing in C#

Hello, I am trying to find the intersection of the two lines spanning from corner to corner diagonally( picture below done in MSpaint, I currently don't have access to the real image ). I have figured that tracing them by using the black and white backgrounds would be the easiest, but there are artifacts on the picture( the squiggly lin...

c++ gdi drawing ellipse problem

ok i can draw ellipse the problem is this, im trying to draw one ellipse but change its x value to different one. like this i draw one ellipse and the x value is 1 after ten seconds i want it the x value to be 10 but it seems that im creating new ellipse with x value 10. here is my code while(sd==1)//sd equal 1 { sf++;//sf equals 1...

Looking for a fast polygon rendering algorithm

I am working with a Microchip dsPIC33FJ128GP802. It's a small DSP-based microcontroller, and it doesn't have much power (40 million instructions per second). I'm looking for a way to render a convex (i.e. simple) polygon. I am only dealing with 2D shapes, integer math, and set or clear pixels (i.e. 1 bit per pixel.) I already have routin...

What is "graphics memory aperture base" in Intel chipsets?

Hi everybody, i'm trying to understand how I can paint simple graphics in x86 protected mode on Intel chipsets; I already (kind of) know how to do that with VGA interface, and I'm trying to understand how I could use G35 Express to do the same. For this purpose I'm studying this document. I can't understand what's "graphics memory apert...

Rotated 2d rectangle intersection detection

I have 2 rectangles they are placed arbitrarily and I have rects all four corner point like struct Rect { NSPoint topLeft; NSPoint topRight; NSPoint bottomLeft; NSPoint bottomRight; } I want to check whether 2 rectangles intersects. I am looking a method similar to NSIntersectsRect . But NSIntersectsRectwon't respect the rota...

Can I define a linear gradient in SVG with a normal/bell-shaped blend?

Consider the following svg snippet: <linearGradient id="redgradient" x1="0%" x2="0%" y1="0%" y2="100%"> <stop offset="0%" stop-color="#ffffff"/> <stop offset="100%" stop-color="#ff0000"/> </linearGradient> <rect x="0" y="0" width="400" height="400" fill="url(#redgradient)"/> Is there a way of specifying that the colours should...

Intensive graphics application in C# (with .NET/Mono)

Hi, If you were writing a 2d graphics intensive application in C# (like animation software or a music sequencer with automated graphics control), which one would be a better choice for graphics library? I'd like to develop a cross-platform application (at least portable on Windows 7, Linux), and I'd like to use only C#, avoiding mixing...

How can I adjust the Hue for Multiple UIImageVIews on the iPhone?

I've run into what originally seemed should be a very simple problem, but have spent many many hours trying to figure out and have gotten nowhere. I'm working with Apple's GLImageProcessing sample code and have simplified it to display one EAGLView with a UISlider that adjusts the hue of an image. I've modified EAGLView to inherit fro...

Software to draw graphical models in plate notation

So I see graphical models expressed in plate notation in research papers and online all the time (for example: http://www.cs.princeton.edu/~blei/papers/BleiNgJordan2003.pdf). Is there a quick and easy way to produce these?? I've searched and searched but all I've found are solutions like GraphViz which are really way more powerful than...

Where can I find tomesh.c?

It is used to compare the results in many papers and cited as "Akeley, K., P. Haeberli, and D. Burns, tomesh.c, a C-program on the SGI Developer's Toolbox CD, 1990". But where can I find the source code now? Thanks, ...

Editor for 2D graphical elements in iPhone App

Hi, I am going to be working with a graphic designer to develop an interactive children's iphone app. It will not be a game as such, but rather a series of backgrounds with some interactive objects that can be touched to display simple animation or sound. These I would be striving for the quality that these guys produce http://duckduck...

Why keep using CCSprite drawing will have a line in the middle?

The image that should be display: But actually, it shows like this: It seems some over lapping, what's happen? thank you. ...

Required Info to choose colormatrix for getting original Image

Hi, I have a requirement where i need to mask and clear the masked portion of the images. I am done with masking part of the requirement. I am using color matrix to mask my image also the selected portion in the image is blacked out. For this the color matrix setting used is , colormatrix obj = new colormatrix ( { 255,0,0,0,0} {0,255,...

PNG is not displaying...

Hello, I'm a newbie in iphone development so plz don't mind. I'm trying to draw PNG on my screen using libpng but its just displaying nothing on the screen. The code I'm using is: // Sets up matrices and transforms for OpenGL ES glViewport(0, 0, backingWidth, backingHeight); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glOrthof(0.0f, ...

Set individual pixels in .NET Format16bppGrayScale image

I'm trying to render a small Bitmap in memory with .NET that needs to be 16 bit Grayscale. The bitmap's format is set to PixelFormat.Format16bppGrayScale. However, Bitmap.SetPixel takes a Color argument. Color in turn takes one byte for each of R, B, and G (and optionally A). How do I specify a 16-bit gray scale value rather than an ...

Graphics library for .net, mono and silverlight

I have a C# application which renders 2D graphics into bitmaps using System.Drawing.Graphics. I now want to port this application to work on normal .net on windows, mono on linux and in Silverlight/Moonlight. But at least Silverlight is lacking System.Drawing. Since I don't want to maintain several copies of my rendering code I need one...