mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-10 18:51:21 +03:00
160 lines
4.6 KiB
C++
160 lines
4.6 KiB
C++
// Created on: 1997-07-22
|
|
// Created by: Laurent PAINNOT
|
|
// Copyright (c) 1997-1999 Matra Datavision
|
|
// Copyright (c) 1999-2014 OPEN CASCADE SAS
|
|
//
|
|
// This file is part of Open CASCADE Technology software library.
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify it under
|
|
// the terms of the GNU Lesser General Public License version 2.1 as published
|
|
// by the Free Software Foundation, with special exception defined in the file
|
|
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
|
|
// distribution for complete text of the license and disclaimer of any warranty.
|
|
//
|
|
// Alternatively, this file may be used under the terms of Open CASCADE
|
|
// commercial license or contractual agreement.
|
|
|
|
|
|
#include <Draw_Color.hxx>
|
|
#include <Draw_Display.hxx>
|
|
#include <DrawTrSurf_Triangulation2D.hxx>
|
|
#include <Poly.hxx>
|
|
#include <Poly_Connect.hxx>
|
|
#include <Poly_Triangle.hxx>
|
|
#include <Poly_Triangulation.hxx>
|
|
#include <Standard_Type.hxx>
|
|
#include <TColStd_Array1OfInteger.hxx>
|
|
|
|
IMPLEMENT_STANDARD_RTTIEXT(DrawTrSurf_Triangulation2D,Draw_Drawable2D)
|
|
|
|
#ifdef _MSC_VER
|
|
#include <stdio.h>
|
|
#endif
|
|
|
|
//=======================================================================
|
|
//function : DrawTrSurf_Triangulation2D
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
DrawTrSurf_Triangulation2D::DrawTrSurf_Triangulation2D
|
|
(const Handle(Poly_Triangulation)& T):
|
|
myTriangulation(T)
|
|
{
|
|
// Build the connect tool
|
|
Poly_Connect pc(T);
|
|
|
|
Standard_Integer i,j,nFree, nInternal, nbTriangles = T->NbTriangles();
|
|
Standard_Integer t[3];
|
|
|
|
// count the free edges
|
|
nFree = 0;
|
|
for (i = 1; i <= nbTriangles; i++) {
|
|
pc.Triangles(i,t[0],t[1],t[2]);
|
|
for (j = 0; j < 3; j++)
|
|
if (t[j] == 0) nFree++;
|
|
}
|
|
|
|
// allocate the arrays
|
|
myFree = new TColStd_HArray1OfInteger(1,2*nFree);
|
|
nInternal = (3*nbTriangles - nFree) / 2;
|
|
myInternals = new TColStd_HArray1OfInteger(1,2*nInternal);
|
|
|
|
TColStd_Array1OfInteger& Free = myFree->ChangeArray1();
|
|
TColStd_Array1OfInteger& Internal = myInternals->ChangeArray1();
|
|
|
|
Standard_Integer fr = 1, in = 1;
|
|
Standard_Integer n[3];
|
|
for (i = 1; i <= nbTriangles; i++) {
|
|
pc.Triangles(i,t[0],t[1],t[2]);
|
|
T->Triangle(i).Get (n[0],n[1],n[2]);
|
|
for (j = 0; j < 3; j++) {
|
|
Standard_Integer k = (j+1) % 3;
|
|
if (t[j] == 0) {
|
|
Free(fr) = n[j];
|
|
Free(fr+1) = n[k];
|
|
fr += 2;
|
|
}
|
|
// internal edge if this triangle has a lower index than the adjacent
|
|
else if (i < t[j]) {
|
|
Internal(in) = n[j];
|
|
Internal(in+1) = n[k];
|
|
in += 2;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : Triangulation
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
Handle(Poly_Triangulation) DrawTrSurf_Triangulation2D::Triangulation() const
|
|
{
|
|
return myTriangulation;
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : DrawOn
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void DrawTrSurf_Triangulation2D::DrawOn(Draw_Display& dis) const
|
|
{
|
|
// Display the edges
|
|
Standard_Integer i,n;
|
|
if (myTriangulation->HasUVNodes())
|
|
{
|
|
// free edges
|
|
dis.SetColor(Draw_rouge);
|
|
const TColStd_Array1OfInteger& Free = myFree->Array1();
|
|
n = Free.Length() / 2;
|
|
for (i = 1; i <= n; i++)
|
|
{
|
|
dis.Draw (myTriangulation->UVNode (Free[2*i-1]),
|
|
myTriangulation->UVNode (Free[2*i]));
|
|
}
|
|
|
|
// internal edges
|
|
dis.SetColor(Draw_bleu);
|
|
const TColStd_Array1OfInteger& Internal = myInternals->Array1();
|
|
n = Internal.Length() / 2;
|
|
for (i = 1; i <= n; i++)
|
|
{
|
|
dis.Draw (myTriangulation->UVNode (Internal[2*i-1]),
|
|
myTriangulation->UVNode (Internal[2*i]));
|
|
}
|
|
}
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : Copy
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
Handle(Draw_Drawable3D) DrawTrSurf_Triangulation2D::Copy() const
|
|
{
|
|
return new DrawTrSurf_Triangulation2D(myTriangulation);
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : Dump
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void DrawTrSurf_Triangulation2D::Dump(Standard_OStream& S) const
|
|
{
|
|
Poly::Dump(myTriangulation,S);
|
|
}
|
|
|
|
//=======================================================================
|
|
//function : Whatis
|
|
//purpose :
|
|
//=======================================================================
|
|
|
|
void DrawTrSurf_Triangulation2D::Whatis(Draw_Interpretor& I) const
|
|
{
|
|
I << "triangulation";
|
|
}
|
|
|