PocketMatrix

I can't split polygons.
I want to draw complex polygon as CDC function Polygon.
for example, using this points, function must draw 2 separate squares:
points[0].x = 10;
points[0].y = 10;
points[1].x = 110;
points[1].y = 10;
points[2].x = 110;
points[2].y = 110;
points[3].x = 10;
points[3].y = 110;
points[4].x = 10;
points[4].y = 10;

points[5].x = 120;
points[5].y = 120;
points[6].x = 220;
points[6].y = 120;
points[7].x = 220;
points[7].y = 220;
points[8].x = 120;
points[8].y = 220;
points[9].x = 120;
points[9].y = 120;

and using this - frame (20 pix width)
points[0].x = 0;
points[0].y = 0;
points[1].x = 100;
points[1].y = 0;
points[2].x = 100;
points[2].y = 100;
points[3].x = 0;
points[3].y = 100;
points[4].x = 0;
points[4].y = 0;

points[5].x = 20;
points[5].y = 20;
points[6].x = 80;
points[6].y = 20;
points[7].x = 80;
points[7].y = 80;
points[8].x = 20;
points[8].y = 80;
points[9].x = 20;
points[9].y = 20;

Thanks for the code - especially the surface texture one.

For everyone else that hasn't tried it yet, I'll attach a pic.

The texture is repeated to fill the entire poly - which may be desirable or not...

Anyway, I may run a benchmark to see just how much faster it is.

Hi all,

I have tested this function because I need to render complex polygons, however it don't work when some vertex of polygon are off screen.

For example, try to draw this rectangle

P1.x = 50; P1.y = -50;
P2.x = 100; P2.y = -50;
P3.x = 100; P3.y = 50;
P4.x = 50; P4.y = 50;

I have expected that this function render the part inside the screen but nothing is rendered. However, the original function FillPoly (that does not work with complex polygons) produce the expected result.



There are a bufix for this function?

Thanks!

Congrats, you just resurrected a 4.5 years old thread. Most of the people (if not all) on this thread don't visit here anymore.