Add a quadrangle in the document:
q1 = doc.addQuad(ed1, ed2, ed3, ed4)
q2 = doc.addQuadVertices(ver1, ver2, ver3, ver4)
Set of index: 0 1 2 3.
The vertices and edges follow the outline of the quadrangle.
Get the number of quadrangles of the document:
nq = doc.countQuad()
Get a quadrangle of the document:
q = doc.getQuad(i)
Get an edge of a quadrangle:
ed_i = q1.getEdge(0 or 1 or 2 or 3)
Get a vertex of a quadrangle:
ve_j = q1.getVertex(0 or 1 or 2 or 3)
Find a quadrangle in the document:
qua = doc.findQuad(ver1, ver2)
GUI command: Quadrangle