image thumbnail

updated 1 day ago

FINDTRIA - Spatial queries for simplexes. by Darren Engwirda

Efficient spatial queries for collections of d-simplexes. (mathematics, geometry, 2d)

image thumbnail

updated 4 days ago

Robust dual-mesh construction by Darren Engwirda

Construct dual meshes from 2-simplex triangulations embedded in R^3 (mathematics, modeling, 2d)

blocksolve(aa,bb)

demodual2(id)

drawdual2(cp,ce,pv,ev,varargin)

image thumbnail

updated 5 years ago

MESH2D - Automatic Mesh Generation by Darren Engwirda

Generates unstructured triangular meshes for general 2D geometry. (mathematics, simulation, modeling)

checkgeometry(node,edge,face,hdata)

circumcircle(p,t)

connectivity(p,t)

image thumbnail

updated 7 years ago

Fast points-in-polygon test by Darren Engwirda

Fast test to determine points located inside general polygon regions. Should be significantly faster (points inside polygon, image processing, inpolygon)

inpoly(p,node,edge,TOL)

lake

polydemo

image thumbnail

updated 8 years ago

tinterp - an alternative to griddata by Darren Engwirda

Linear and quadratic interpolation for scattered data (approximation, interpolation, scattered interpolati...)

tester

tinterp(p,t,f,xi,yi,method)

image thumbnail

updated 8 years ago

Contours for triangular grids by Darren Engwirda

Generate smooth contours for functions defined on unstructured triangular grids (specialized, plotting, unstructured)

contourdemo

tricontour(p,t,Hn,N)

image thumbnail

updated 8 years ago

Fast sparse matrix vector product by Darren Engwirda

sparse matrix vector product (linear algebra, sparse, matrix)

smvp

image thumbnail

updated 8 years ago

Fast Sparse LU substitution by Darren Engwirda

A dedicated mex-file for use with UMFPACK to complete the forward and back substitution quickly (linear algebra, sparse lu substitutio..., umfpack)

LUsubs

Contact us