Find angles by Siva Srinivas Kolukula

Find angles of triangle and/or quadrilateral when vertices are given. (triangle, quadrilateral, angles)

FindAngles(vertices)

QUADangles(vertices)

TRIangles(vertices)

Unstructured quadrilateral mesh quality assessment by Allan Peter Engsig-Karup

Assess the quality of a triangle mesh using a simple indicator. (mesh, quad, quadrilateral)

MeshQualityQuads(EToV,VX,VY)

QUADPLOT - for plotting 2D quad-meshes by Allan Peter Engsig-Karup

QUADPLOT is a routine for plotting 2D meshes based on quadrilaterals. (mesh, plot, quads)

quadplot(quad,varargin)

Fast Quadrilateral Intersection by Russell

Computes the intersecting area of two arbitrary quadrilaterals. (bounding box, polygon, intersection)

fastRectInt(r1, r2)

polyLong2PolyShort(polyLong)

QUADMESH Quadrilateral mesh plot by Allan Peter Engsig-Karup

Function for plotting quadrilateral meshes from coordinate and connection tables. (quadrilateral, mesh plot, specialized)

quadmesh(quad,x,y,z,varargin)