Logo ROOT   6.21/01
Reference Guide
gldemos.C File Reference

Detailed Description

Menu for running GL demos.

void gldemos()
{
TControlBar *bar = new TControlBar("vertical", "GL painter demo",20,20);
bar->AddButton("Help on demos", "help()", "Description");
bar->AddButton("glsurfaces", ".x $ROOTSYS/tutorials/gl/glsurfaces.C", "Surface painter example");
bar->AddButton("glrose", ".x $ROOTSYS/tutorials/gl/glrose.C", "Surface in polar system");
bar->AddButton("gltf3", ".x $ROOTSYS/tutorials/gl/gltf3.C", "TF3 painter");
bar->AddButton("glbox", ".x $ROOTSYS/tutorials/gl/glbox.C", "BOX painter");
bar->AddButton("glparametric", ".x $ROOTSYS/tutorials/gl/glparametric.C", "Parametric surface");
bar->Show();
}
void help()
{
new TCanvas("chelp","Help on gldemos",200,10,700,600);
TPaveLabel *title = new TPaveLabel(0.04, 0.86, 0.96, 0.98, "These demos show different gl painters.");
title->SetFillColor(32);
title->Draw();
TPaveText *hdemo = new TPaveText(0.04, 0.04, 0.96, 0.8);
hdemo->SetTextAlign(12);
hdemo->SetTextFont(52);
hdemo->AddText("1. Glsurfaces demo shows glsurf4, glsurf1, glsurf3, glsurf1cyl, glsurfpol, gltf3 options.");
hdemo->AddText("2. Glrose demontrates \"glsurf2pol\" drawing option and user-defined palette.");
hdemo->AddText("3. Gltf3 demo shows \"gltf3\" option.");
hdemo->AddText("4. Glbox demo shows \"glbox\" and \"glbox1\" options for TH3.");
hdemo->AddText("5. Glparametric demo shows how to define and display parametric surfaces.");
hdemo->AddText("You can zoom any plot: press 'J', 'K', 'j', 'k' keys, or use mouse wheel.");
hdemo->AddText("Rotate any plot:");
hdemo->AddText(" ---select plot with mouse cursor,");
hdemo->AddText(" ---move mouse cursor, pressing and holding left mouse button ");
hdemo->AddText("Pan plot:");
hdemo->AddText(" ---select with mouse cursor a part of a plot, other than back box planes ,");
hdemo->AddText(" ---move mouse cursor, pressing and holding middle mouse button ");
hdemo->AddText("Selected part of a plot is higlighted (TF3 higlighting is not implemented yet.)");
hdemo->AddText("You can select one of back box planes, press middle mouse button and move cursor-");
hdemo->AddText("this will create \"slice\" (TF does not support yet).");
hdemo->AddText("After the slice was created, you can project it on a back box");
hdemo->AddText(" ---press key 'p' (now implemented only for surf options ).");
hdemo->AddText("Left double click removes all slices/projections.");
hdemo->Draw();
}
Author
Timur Pocheptsov

Definition in file gldemos.C.