MESHBOUNDARYEDGEINDICES Indices of boundary edges of a mesh.
INDS = meshBoundaryVertexIndices(V, F)
INDS = meshBoundaryVertexIndices(V, E, F)
Example
% create centered icosahedron
[v, f] = createIcosahedron;
v(:,3) = v(:,3) - mean(v(:,3));
% convert to simili-sphere
[v2, f2] = subdivideMesh(v, f, 3);
v3 = normalizeVector3d(v2);
% clip with plane
plane = createPlane([0 0 0], [-1 -2 3]);
[vc, fc] = clipMeshVertices(v3, f2, plane, 'shape', 'plane');
figure; drawMesh(vc, fc); axis equal; view(3);
% draw boundary vertices
ec = meshEdges(vc, fc);
inds = meshBoundaryEdgeIndices(vc, ec, fc);
edges = [vc(ec(inds, 1), :) vc(ec(inds, 2), :)];
hold on; drawEdge3d(edges, 'linewidth', 2, 'color', 'b');
See also
meshes3d, meshBoundary, meshBoundaryVertexIndices, meshEdgeFaces
Package: matgeom