Density plot for given matrices x, and y from
meshgrid
and a matrix c corresponding to the x and y coordinates of the mesh's vertices. If x and y are vectors, then a typical vertex is (x(j), y(i), c(i,j)). Thus, columns of c correspond to different x values and rows of c correspond to different y values.The
colormap
is scaled to the extents of c. Limits may be placed on the color axis by the commandcaxis
, or by setting theclim
property of the parent axis.The face color of each cell of the mesh is determined by interpolating the values of c for the cell's vertices. Contrast this with
imagesc
which renders one cell for each element of c.
shading
modifies an attribute determining the manner by which the face color of each cell is interpolated from the values of c, and the visibility of the cells' edges. By default the attribute is "faceted", which renders a single color for each cell's face with the edge visible.h is the handle to the surface object.