ofzach / ofxtrianglemesh

triangle mesh addon for openframeworks

ofxTriangleMesh

triangle mesh addon for openframeworks

this is based on ofxTriangle, but uses triangle rather than the c++ wrapper triangle++, which allows for more flexability and options in the triangulation.

for example, you can set angle or size constraints on the triangles generated, and have the insertion of steiner points, etc.

there's info here:

https://www.cs.cmu.edu/~quake/triangle.switch.html

the triangle++ wrapper has a heavily modified version of triangle, this uses the straight thing:

https://www.cs.cmu.edu/~quake/triangle.html

note: this addon is pretty rough still, so please test this before using it in production.

examples of smallest minimum angle constraints:

examples of size constraints:

ofxtrianglemesh's Issues

Error with current OF master due to the new glm::tvec3 format in ofPolygon

Hey, I was switching over from ofxTriangle and had a small issue with the current master due to the new vector formats:

addons/ofxTriangleMesh/src/ofxTriangleMesh.cpp:121: error: no matching function for call to 'ofxTriangleMesh::isPointInsidePolygon(glm::tvec3<float, (glm::precision)0u>*, size_t, ofPoint)'
         if( isPointInsidePolygon(&contour[0], contour.size(), getTriangleCenter(tr) ) ) {
                                                                                     ^

I was able to resolve it by changing the isPointInsidePolygon function to look like this:

bool isPointInsidePolygon(ofPolyline polygon, int N, ofPoint p);

I can file a PR, but maybe there is another way of resolving this without changing the function parameters..?

Thanks for the addon! :)

Crash with ofxBox2D

Hi:

ofxTriangleMesh is a great addon that exposes the switches of Triangle, which is much more power that that provided by ofxBox2D. However, it crash with ofxBox2D, probably due to duplication of use of structure triangulateio. Is there way to fix this issue?

Thanks!
Eric