contextWindow.cpp

// Gmsh - Copyright (C) 1997-2018 C. Geuzaine, J.-F. Remacle
//
// See the LICENSE.txt file for license information. Please report all
// bugs and problems to the public mailing list <gmsh@onelab.info>.

#include <stdlib.h>
#include <FL/Fl_Tabs.H>
#include <FL/Fl_Return_Button.H>
#include "FlGui.h"
#include "drawContext.h"
#include "contextWindow.h"
#include "paletteWindow.h"
#include "graphicWindow.h"
#include "openglWindow.h"
#include "Parser.h"
#include "GModel.h"
#ifdef Convex // can be defined by Xlib
#undef Convex
#endif
#include "GModelIO_OCC.h"
#include "GeoStringInterface.h"
#include "OpenFile.h"
#include "Context.h"
#include "Options.h"
#include "MallocUtils.h"
#include "Geo.h"
#include "VertexArray.h"
#include "mathEvaluator.h"

static bool getval(const char *str, double &val)
{
  std::vector<std::string> var;
  std::vector<double> valVar;

  // we should probably use the actual .geo parser instead...
  for(std::map<std::string, gmsh_yysymbol>::iterator it = gmsh_yysymbols.begin();
      it != gmsh_yysymbols.end(); it++){
    if(it->second.value.size() == 1){
      var.push_back(it->first);
      valVar.push_back(it->second.value[0]);
    }
  }

  std::vector<std::string> expr(1);
  expr[0] = str;
  std::vector<double> res(1);
  mathEvaluator f(expr, var);
  if(expr.empty()) return false;
  if(!f.eval(valVar, res)) return false;
  val = res[0];
  return true;
}

static void draw_stl(std::vector<SPoint3> &vertices, std::vector<SVector3> &normals,
                     std::vector<int> &triangles)
{
  GLint mode[2];
  glGetIntegerv(GL_POLYGON_MODE, mode);
  if(CTX::instance()->geom.surfaceType == 1)
    glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
  else
    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
  glEnable(GL_LIGHTING);
  glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
  glColor4ubv((GLubyte *) & CTX::instance()->color.geom.highlight[0]);

  VertexArray va(3, triangles.size());
  for(unsigned int i = 0; i < triangles.size(); i+=3){
    SPoint3 p1 = vertices[triangles[i]];
    SPoint3 p2 = vertices[triangles[i + 1]];