Could you please point me to a good C# tutorial for drawing 2d graphics like Ellipse and Rectangle (that inherit from Shape) on a Canvas using WPF ? I m also interested later to click on shapes and ...

I am writing simple hex engine for action-rpg in XNA 3.1. I want to light ground near hero and torches just as they were lighted in Diablo II. I though the best way to do so was to calculate field-of-...

I m trying to write a 2D simulation of a ball that bounces off of fixed vertical and horizontal walls. Simulating collisions with the faces of the walls was pretty simple--just negate the X-velocity ...

I am trying to check the location of a point(px, py) on 2D graph in relation to a line segment (lx1, ly1) (lx2, ly2), using logic of North South East West directions. The logic I have implemented is ...

How can I draw a perpendicular on a line segment from a given point? My line segment is defined as (x1, y1), (x2, y2), If I draw a perpendicular from a point (x3,y3) and it meets to line on point (x4,...

So I m trying to figure out how to implement a method of selecting lines or edges in a drawing area but my math is a bit lacking. This is what I got so far: A collection of lines, each line has two ...

How do I generate a contour graph like this: contour http://www.fz-juelich.de/vislab/software/gsharp/Gsharp/userguide/interpolate/ex6.gif It s easy enough if the points are on a regular grid, but ...

For some reason it seems that everyone writing webpages about Poincare discs is only concerned with how to represent lines and measure distances. I d like to morph a collection of 2D points (as ...