[cgma-dev] errors with OCC

[Leidy Suarez]

Hi,

1.  And another bug in line 73 in file:  "OCCDrawTool.cpp" :

OCCSurface *occ_face = CAST_TO(occ_face, OCCSurface);


Maybe is:

 OCCSurface *occ_face = CAST_TO(face, OCCSurface);


2. We have tried using "OCCDrawTool". The example is:

//======================== create objects 
======================================
   //Create sphere
    RefEntity* sphereEnt= GeometryModifyTool::instance()->sphere(1.5);
    sphereEnt->entity_name("sphere");
 //========================================================================
 //======================== Plot objects 
======================================

    TopoDS_CompSolid* objOCC;
    int numBodies = GeometryQueryTool::instance()->num_bodies(); 
    Body* tmpBd = GeometryQueryTool::instance()->get_first_body();
    for (int i = 0; i < numBodies; i++)
    {
        BodySM* tmpBdSM = tmpBd->get_body_sm_ptr();
        objOCC = ( (OCCBody*) tmpBdSM )->get_TopoDS_Shape(); 
//Opencascade Object
        OCCDrawTool::instance()->draw_TopoDS_Shape(objOCC, 200);
        tmpBd = GeometryQueryTool::instance()->get_next_body();
    }
//========================================================================

We have had a problem when the method "draw_TopoDS_Shape" in the calling 
of the method "draw_FACE".
The problem is exactly in the method "draw_FACE", when is called the 
method "draw_curve".  Because in "get_graphics"  the
"facets" are not generated.
We have added the check:

//====================
  if (facets.IsNull())
    return CUBIT_FAILURE;
//====================

Why do you use the "BRep_Tool::Polygon3D" ?

Mahy thanks,
Leidy


Leidy Suarez wrote:
> Hi,
> We believe have found a problem using OCC engine.
>
> We have made an example. The example consist on create a arc circle 
> passing two vertexes and one mid point.
>
> The code is showed to be continued.
>
>    //====================== Create circle 
> ======================================
>    CubitVector v1(6.0, 0.0, 0.0);
>    RefVertex* vert1 = GeometryModifyTool::instance()->make_RefVertex(v1);
>    CubitVector v2(6.0, 8.0, 0.0);
>    RefVertex* vert2 = GeometryModifyTool::instance()->make_RefVertex(v2);
>    CubitVector v3(0, 8.0, 0.0);
>      RefEdge* edge = 
> GeometryModifyTool::instance()->make_RefEdge(ARC_CURVE_TYPE, vert1, 
> vert2, &v3, CUBIT_FORWARD );
>  
> //=========================================================================== 
>
>
> The problem is when we have checked the vertexes that contain the 
> curve. We have checked by two manners:
>
> 1. The first check is made by listing the vertexes using the vertex 
> method called "get_child_ref_entities()" :
>
>    //============================= List objects 
> ==================================
>    DLIList<RefEntity*> listVertexEdge;
>    tmpEdge->get_child_ref_entities(listVertexEdge);
>    int numVertexEdge = listVertexEdge.size();
>    for (int i = 0; i < numVertexEdge; i++)
>    {
>        tmpVertex = (RefVertex*) listVertexEdge.get_and_step();
>        tmpPt = tmpVertex->get_point_ptr();
>        coord = tmpPt->coordinates();
>    }
>    
> //============================================================================= 
>
> The result is:
>
> /The num total of vertexes of the arc curve are: 2
> The vertexes //coordinates  //are: v1[6.0, 0.0, 0.0] and v2[0, 8.0, 0.0].
> /
> The questions is: /
>
> Why does not vert2 appear?./
>
> 2.  The second check is made by listing the vertexes using the 
> "GeometryQueryTool" tool:
>
>   //============================= List objects 
> ===================================
>    int numTotalVertex  = 
> GeometryQueryTool::instance()->num_ref_vertices();
>    RefVertex* tmpVertex = NULL;
>    CubitVector coord;
>    Point* tmpPt = NULL;
>    for (int i = 0; i < numTotalVertex; i++)
>    {
>        tmpVertex = GeometryQueryTool::instance()->get_next_ref_vertex();
>        tmpPt = tmpVertex->get_point_ptr();
>        coord = tmpPt->coordinates();
>    }
>    
> //=========================================================================== 
>
>
> The result is:
>
> /The num total of vertexes are: 4
> The vertexes //coordinates  //are: /v1(6.0, 0.0, 0.0),  v2(6.0, 8.0, 
> 0.0),  v3(0, 8.0, 0.0)
> and v4(6.0, 0.0, 0.0).
>
> The questions is: /
>
> Why did v1 be repeated?.
>
>
> /Thanks,
> Leidy
>
>