VP1Lines::Imp Class Reference

Collaboration diagram for VP1Lines::Imp:

Public Member Functions
	Imp (VP1Lines *, SoSeparator *attachsep)
void	rebuild3DObjects ()
void	updateColour ()

Public Attributes
VP1Lines *	theclass
SoSeparator *	attachSep
bool	shown
SbColor4f	colourAndTransp
SbVec3f	direction
SoSeparator *	sep

Detailed Description

Definition at line 18 of file VP1Lines.cxx.

Constructor & Destructor Documentation

Imp()

VP1Lines::Imp::Imp	(	VP1Lines *	tc,
		SoSeparator *	attachsep )

Definition at line 53 of file VP1Lines.cxx.

  : theclass(tc), attachSep(as), shown(false),
    // lines are white by default
    colourAndTransp(SbColor4f(1,1,1,1)),
    // this is if you want them black
    // colourAndTransp(SbColor4f(0,0,0,1)),
    direction(SbVec3f(0,0,0)),
    sep(0)
{
  attachSep->ref();
}

Member Function Documentation

rebuild3DObjects()

void VP1Lines::Imp::rebuild3DObjects

(

)

Definition at line 66 of file VP1Lines.cxx.

{
  theclass->messageVerbose("(Re)building 3D objects");
 
  if (sep) {
    sep->removeAllChildren();
  } else {
    sep = new SoSeparator;
    sep->ref();
  }
 
  const bool save = sep->enableNotify(false);
 
  SoVertexProperty * line_vertices = new SoVertexProperty();
 
  line_vertices->vertex.set1Value(0,0.0,0.0,0.0);
  line_vertices->vertex.set1Value(1,direction[0],direction[1],direction[2]);
 
  line_vertices->materialBinding=SoMaterialBinding::OVERALL;
  line_vertices->normalBinding=SoNormalBinding::OVERALL;
  SoLineSet * line = new SoLineSet();
  line->numVertices.enableNotify(FALSE);
  // line->numVertices.setNum(1);
  // line->numVertices.set1Value(0,2);
  line->vertexProperty = line_vertices;
  line->numVertices.enableNotify(TRUE);
  line->numVertices.touch();
 
  // This is here if you want to
  // convert lines into cylinders
  constexpr bool convert = false;
  if (convert) {
    SbVec3f p1 = line_vertices->vertex[0].getValue();
    SbVec3f p2 = line_vertices->vertex[1].getValue();
    SoCylinder * cylinder = new SoCylinder;
    cylinder->radius = 4.0;
    float height = std::sqrt( direction[0]*direction[0]+
                                direction[1]*direction[1]+
                                direction[2]*direction[2]);
    cylinder->height = height;
 
    SbMatrix m;
    m.setTranslate(SbVec3f(0,0.5*height,0));
    SbVec3f v(p2); v -= p1;
    SbRotation rotation(SbVec3f(0,1,0),v);
    SbMatrix m2; m2.setRotate(rotation);
    m.multRight(m2);
    SbMatrix m3;
    m3.setTranslate(p1);
    m.multRight(m3);
    SbMatrix mat;
    mat = m;
    SoMatrixTransform * mt = new SoMatrixTransform;
    mt->matrix.setValue(mat);
    sep->addChild(mt);
    sep->addChild(cylinder);
  } else sep->addChild(line);
 
  updateColour();
 
  if (save) {
    sep->enableNotify(true);
    sep->touch();
  }
 
}

updateColour()

void VP1Lines::Imp::updateColour

(

)

Definition at line 134 of file VP1Lines.cxx.

{
  theclass->messageVerbose("Updating packed colour");
  if (!sep||sep->getNumChildren()<1)
    return;
  SoNode * n = sep->getChild(0);
  if (!n||n->getTypeId()!=SoLineSet::getClassTypeId())
    return;
  SoLineSet * line = static_cast<SoLineSet*>(n);
  SoVertexProperty * vertices = static_cast<SoVertexProperty *>(line->vertexProperty.getValue());
  if (!vertices)
    return;
  vertices->orderedRGBA = colourAndTransp.getPackedValue();
}

Member Data Documentation

attachSep

SoSeparator* VP1Lines::Imp::attachSep

Definition at line 23 of file VP1Lines.cxx.

colourAndTransp

SbColor4f VP1Lines::Imp::colourAndTransp

Definition at line 26 of file VP1Lines.cxx.

direction

SbVec3f VP1Lines::Imp::direction

Definition at line 27 of file VP1Lines.cxx.

sep

SoSeparator* VP1Lines::Imp::sep

Definition at line 29 of file VP1Lines.cxx.

shown

bool VP1Lines::Imp::shown

Definition at line 25 of file VP1Lines.cxx.

theclass

VP1Lines* VP1Lines::Imp::theclass

Definition at line 22 of file VP1Lines.cxx.

---

The documentation for this class was generated from the following file:

• VP1Lines.cxx