I've answered a similar question here, even though it wasn't clear if I understood the OP's question too well. Well , here it is again - Let's take a very general case . Polygon with a hole and Intersections The ray casting (point in polygon) algorithm shoots off a ray...

3d,volume,voronoi,vertices,point-in-polygon

When you have input points, the simplest way is to iterate over them and check which one is closest to your new point. The closest of your input points will represent the region that contains your new point....

Create a polygon object with your data. Use the contains method of that polygon object. Here is the java api : http://docs.oracle.com/javase/7/docs/api/ As for algorithm, you should try connecting the points and generate equations of line. Store the lines in a list, and see if the point you are testing...

java,mouseover,point-in-polygon

In pseudo-code (to be more readable): Point org = new Point(64, 32); // Center. Point radii = new Point(32, 16); // Half the size. Point mousePos = ... mousePos -= org; // Relative to the center. boolean inside = Math.abs(mousePos.x) * radii.y + Math.abs(mousePos.y) * radii.x <= radii.x * radii.y;...

python,vector,geometry,point-in-polygon

Aha! &!==and and |!==or. By changing the operators it worked. ...

Alright for anyone who stumbles upon this problem again, I solved the issue by implementing the algorithm proposed in this answer.

c++,algorithm,computational-geometry,boundary,point-in-polygon

From the website documentation: "PNPOLY partitions the plane into points inside the polygon and points outside the polygon. Points that are on the boundary are classified as either inside or outside. ..." Please read the documentation available on the site again.It answers your question. In the end, you will probably...