This MATLAB function allows you to transform the vectors generated by a call to meshgrid in one function call, without looping. Before an after pictures are shown below, to give you an idea as to what this does.
This is a simple plot of a grid generated by meshgrid([-5:0.5:5]).
This is a plot of
applying warpmesh to that grid with C = [1.0 0.5; 0.0; 0.8660]. 
[W Z] = WARPMESH(X, Y, C) Apply a transformation to the output of meshgrid(). The output matrices W & Z are such that the matrix C is applied to each 2d vector: +- -+ +- -+ | W(i,j) | | X(i,j) | | | = C | | | Z(i,J) | | Y(i,j) | +- -+ +- -+