Tagged Questions
2
votes
2answers
132 views
How can I move a polygon edge 1 unit away from the center?
Let's say I have a polygon class that is represented by a list of vector classes as vertices, like so:
var Vector = function(x, y) { this.x = x; this.y = y; },
Polygon = function(vectors) { ...
8
votes
2answers
890 views
How do I determine if one polygon completely contains another?
I have 2 polygons. I know the vertex coordinates of both polygons. What's the best way to check if one is completely inside the other? For example, the algorithm should only recognize the black ...
4
votes
1answer
471 views
What is a good way to determine if a vector is between two other vectors?
I could operate with the angles, but I do not have the angles calculated yet (and would like to avoid having to do that). It would be possible to calculate and cache the local-coordinate-frame angles, ...
