ROOT Version: v6-28-04@v6-28-04
Platform: macosxarm64
Compiler: Apple clang version 14.0.3 (clang-1403.0.22.14.1)
Hi, I’m trying to draw two TGraph2Ds on a TCanvas with a cylinder and sphere overlayed onto them so that the entire display can be rotated and the points on the graph can be seen. I have all of this working except for a couple of issues:
- The canvas initially draws with the view very zoomed out:
- When zooming in using A/S there is a set of ‘axes’ visible that I can’t seem to get rid of:
These axes appear to be related to theTViewobject that is created when drawing the sphere. If I draw a sphere by itself I don’t see any axes, same with a lone cylinder. When I add theTGraph2Ds using the"SAME"option then the axes appear.
How would I get rid of these?
Thanks,
Jack
Here is my code:
void plot3D() {
// Open the data file
std::ifstream infile("<SOME FILE NAME HERE>");
if (!infile.is_open()) {
std::cerr << "Unable to open file" << std::endl;
return;
}
// Prepare the 3D graphs
TGraph2D *graphInside = new TGraph2D();
TGraph2D *graphOutside = new TGraph2D();
graphInside->SetTitle("3D Cylinder Plot (Inside Cylinder);X (mm);Y (mm);Z (mm)");
graphOutside->SetTitle("3D Cylinder Plot (Outside Cylinder);X (mm);Y (mm);Z (mm)");
std::string line;
int lineNumber = 0;
// Read the file line by line
while (std::getline(infile, line)) {
// READ FILE AND ADD POINTS TO GRAPHS
}
infile.close();
// Draw the graph
TCanvas *canvas = new TCanvas("canvas", "3D Cylinder Plot", 800, 600);
// Draw a large sphere
TGeoSphere *mySphere = new TGeoSphere(1990, 2000., 0, 180, 0, 360);
mySphere->Draw();
// Draw a cylinder of some size on the same pad
TGeoTube *myCyl = new TGeoTube(0., 35.5, 34.);
myCyl->Draw("SAME");
// Draw the points inside the cylinder
graphInside->SetMarkerStyle(1); // Set marker style to dots
graphInside->Draw("AIP SAME"); // Draw points on the same canvas
// Draw the points outside the cylinder
graphOutside->SetMarkerStyle(20); // Set marker style to squares for outside points
graphOutside->SetMarkerColor(kRed); // Set marker color to red for outside points
graphOutside->SetMarkerSize(0.3); // Increase marker size for outside points
graphOutside->Draw("AIP SAME"); // Draw points on the same canvas
canvas->Modified();
canvas->Update();
}