I want to plot a 3D graph using MathGL. There are three variables (X,Y,Z), and kinds of combination correspond different C values. Also C vector sets the color scheme. I write some codes as below. But it doesn't work. I'm not sure I use wrong functions or not. -
mglData x("x"),y("y"),z("z"),c("c");
-
mglGraph *gr=new mglGraphZB;
-
gr->SetSize(1200,800);gr->Title("Eletron Density",0,5);
-
gr->Rotate(65,35);
-
gr->XRange(x);
-
gr->YRange(y);
-
gr->ZRange(z);
-
gr->CRange(0,30);
-
gr->Label('x',"Longitude");
-
gr->Label('y',"Latitude");
-
gr->Label('z',"Altitude");
-
gr->Colorbar("BbcyrR",1.0,0.90,0.2,0.4,0.7);
-
gr->Surf3(x,y,z,c);
-
gr->Axis();
-
gr->Box();
-
gr->WritePNG("eletron_density.png");
-
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