GRAPH 3D v2.425 (20-FEB-2017)

[Han]

If you downloaded v2.421 prior to 21-DEC-2014, there is a minor bug that appears when switching colors while trace mode is active. In the g3D_recolor function, insert the following two lines before the "else" statement toward the bottom of the code block.

Code:

    ptdef:=ptdefs(fsel); // <-- add this line
    Zvals:=zvals(fsel); // <-- and this line

  else
    zColor:=makemat(g3D_zcolor(I,J),grid3D+1,grid3D+1);
    ptdef:=makelist(g3D_makeptdef((X-1) mod (grid3D+1),IP((X+grid3D)/(grid3D+1))),X,1,(grid3D+1)^2);
    ptdef:=concat(ptdef,corners);
  end;

Basically the bug was that the recolor function altered the current zvals and point definitions of the selected function.