Re: Axis for TNode.

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• In reply to: Alexander Zvyagin: "Axis for TNode."
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Alexander Zvyagin wrote:
> 
> Date: Fri, 2 Oct 1998 09:19:49 +0000
> From: Alexander Zvyagin <ZVYAGIN@mx.ihep.su>
> X-Sender: ZVYAGIN@polar.ihep.su
> To: roottalk@hpsalo.cern.ch
> Subject: Axis for TNode.
> Message-ID: <Pine.VMS.3.91-b11-vms.981002091104.2198A-100000@polar.ihep.su>
> MIME-Version: 1.0
> Content-Type: TEXT/PLAIN; charset=US-ASCII
> 
> Dear ROOTers!
> 
> I'd like to draw axis on my TNode. (I mean I would like to have axis drawn
> when I call function TNode::Draw() in CINT.)
> What is the simples way to do this?
> 
> May be it will be good to add 'axis feature' in the TNode/TShape class?
> 
> With best wishes,
> Alexander.

Alex,
I don't think this should be part of TNode/TShape, but an
independent small class. Meanwhile (and for fun) you can get
some inspiration for one (or both) macros below:

Rene Brun

//==============simple axis.C

{
   lx = new TPolyLine3D(2);
   lx->SetLineColor(6);
   lx->SetLineWidth(2);
   lx->SetLineStyle(2);
   lx->SetPoint(0,0,0,0);
   lx->SetPoint(1,800,0,0);

   ly = new TPolyLine3D(2);
   ly->SetLineColor(4);
   ly->SetLineStyle(2);
   ly->SetLineWidth(2);
   ly->SetPoint(0,0,0,0);
   ly->SetPoint(1,0,800,0);

   lz = new TPolyLine3D(2);
   lz->SetLineColor(2);
   lz->SetLineStyle(2);
   lz->SetLineWidth(2);
   lz->SetPoint(0,0,0,0);
   lz->SetPoint(1,0,0,1200);
   lx->Draw();
   ly->Draw();
   lz->Draw();
}   

//==============funny axis.C by Stascek Jadach


{
// S. Jadach, arrows.C, truly 3-dim. reference system
gROOT->Reset();
c1 = new TCanvas("c1","Geometry Shapes",0,0,700,700);

brik = new TBRIK("BRIK","BRIK","void",1000,1000,1000);
cone = new TCONE("CONE","CONE","void",  200,   0,200,  0,0);
//                                     +-z   r1,rmax  r1,rmax
tube = new TTUBE("TUBE","TUBE","void",  0,50,500);
cone->SetLineColor(1);
tube->SetLineColor(2);

//delete rot1;
TRotMatrix *rot1 = new TRotMatrix("rot1","rot1"     ,90,90  ,0,0 ,90,0
);
//                                                     y      z    x
TRotMatrix *rot2 = new TRotMatrix("rot2","rot2"      ,0,0  ,90,0
,90,90);
//                                                     y      z    x

//  Build the geometry hierarchy
node1 = new TNode("NODE1","NODE1","BRIK");
node1->cd();
TNode *node2 = new TNode("NODE2","NODE2","TUBE", 500,0,0,"rot1");
node2->cd();
TNode *node3 = new TNode("NODE3","NODE3","CONE", 0, 0, 700,"");
node3->SetLineColor(6);

node1->cd();
TNode *node4 = new TNode("NODE4","NODE4","TUBE",  0, 0, 500);
node4->cd();
TNode *node5 = new TNode("NODE5","NODE5","CONE", 0, 0, 700);
node3->SetLineColor(4);

node1->cd();
TNode *node6 = new TNode("NODE6","NODE6","TUBE",  0, 500, 0,"rot2");
node6->cd();
TNode *node7 = new TNode("NODE7","NODE7","CONE", 0, 0, 700);
node7->SetLineColor(5);

// Draw this geometry in the current canvas
node1->cd();
node1->Draw();
node1->SetVisibility(0);
c1->Update();

   pline3D = new TPolyLine3D(2,"");
   pline3D->SetLineColor(7);
   pline3D->SetLineWidth(2);
   pline3D->SetPoint(0, 0,0,0);
   pline3D->SetPoint(1, 1200,800,1000);
   pline3D->Draw();


}

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