glsurfaces.C: This example draws 6 surfaces using OpenGL in pad (one is remake | OpenGL examples | nucleus.C: use TGeo classes to draw a model of a nucleus |
void gltf3() { // Draw the Klein bottle(closed nonorientable surface that has no // inside or outside). // TF3 can be drawn in several styles, // default // (like surface4) // kMaple0 (very nice colours) // kMaple1 (nice colours and outlines) // kMaple2 (nice colour outlines). // To switch between them, you can press 's' key. // Author: Timur Pocheptsov TCanvas *cnv = new TCanvas("glc", "TF3: Klein bottle", 200, 10, 600, 600); // TCanvas *cnv = new TCanvas("glc", "TF3: Torus", 200, 10, 600, 600); TPaveLabel *title = new TPaveLabel(0.04, 0.86, 0.96, 0.98, "\"gl\" option for TF3. Select plot and press 's' to change the color."); title->SetFillColor(32); title->Draw(); TPad *tf3Pad = new TPad("box", "box", 0.04, 0.04, 0.96, 0.8); tf3Pad->Draw(); TFormula f1 = TFormula("f1", "x*x + y*y + z*z + 2*y - 1"); TFormula f2 = TFormula("f2", "x*x + y*y + z*z - 2*y - 1"); // Klein bottle with cutted top&bottom parts // The Klein bottle is a closed nonorientable surface that has no // inside or outside. TF3 *tf3 = new TF3("Klein Bottle","f1*(f2*f2-8*z*z) + 16*x*z*f2", -3.5, 3.5, -3.5, 3.5, -2.5, 2.5); // Torus // TF3 *tf3 = new TF3("Torus","4*(x^4 + // (y^2+z^2)^2)+17*x^2*(y^2+z^2)-20*(x^2+y^2+z^2)+17", -2.5., 2.5., // -2.5., 2.5., -2.5., 2.5.); tf3->SetFillColor(kRed); tf3Pad->cd(); tf3->Draw("gl"); } |
|