How to add axis to a TPolyMarker3D view

ROOT
1

I have generated a view of a TPolyMarker3D to view as a point cloud. I now need to add some decorations to it but am having a hard time understanding the TGAxis format. Everytime that I rotate the plot or translate it will I need to manually repaint the axis? Is there a nice way to pull this off without having to writre a bunch of mainanence code?

:question:

2

Yhea…

I just now saw the TView::ShowAxis method.

/me cowers in the corner :laughing:

3

Next list some code about how to show axis for TPolyMarker3D points

TView *v = TView::CreateView();

 v->ShowAxis();

TPolyMarker3D* marker = new TPolyMarker3D(1);
marker->Draw();

You may try it.

4

An other way:

{
   gStyle->SetOptStat(0);

   TH3F *frame3d = new TH3F("frame3d","frame3d",10,-1,1,10,-1,1,10,-1,1);
   frame3d->Draw();

   TPolyMarker3D *pm3d1 = new TPolyMarker3D(3);
   pm3d1->SetPoint(0,1,0,0);
   pm3d1->SetPoint(1,0,1,0);
   pm3d1->SetPoint(2,0,0,1);

   pm3d1->SetMarkerSize(2);
   pm3d1->SetMarkerColor(kBlue);
   pm3d1->SetMarkerStyle(20);

   pm3d1->Draw();

   TPolyMarker3D *pm3d2 = new TPolyMarker3D(3);
   pm3d2->SetPoint(0,-1,0,0);
   pm3d2->SetPoint(1,0,-1,0);
   pm3d2->SetPoint(2,0,0,-1);

   pm3d2->SetMarkerSize(2);
   pm3d2->SetMarkerColor(kRed);
   pm3d2->SetMarkerStyle(20);

   pm3d2->Draw();
}
5

I test the macro on my computer, It works very well. Thank you.