8.12.7 Dens (Pure C)

C function: void mgl_dens_xy (HMGL gr, const HMDT x, const HMDT y, const HMDT z, const char *sch, float zVal)

The function draws density plot for surface specified parametrically {x[i,j], y[i,j], z[i,j]} at z = zVal. String sch sets the color scheme (see section Color scheme). Previous color scheme is used by default. If string sch have symbol ‘#’ then grid lines are drawn. The minor dimensions of arrays x, y, z should be equal x.nx=z.nx && y.nx=z.ny or x.nx=y.nx=z.nx && x.ny=y.ny=z.ny. Arrays x and y can be vectors (not matrices as z). Surface is plotted for each z slice of the data. See also Surf(), Cont(), ContF(), Dens[XYZ](). See section Dens sample, for sample code and picture.

C function: void mgl_dens (HMGL gr, const HMDT z, const char *sch, float zVal)

The same as previous with x, y equidistantly distributed in interval [Min, Max].