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   * Copyright (c) Kongsberg Oil & Gas Technologies AS
   * All rights reserved.
   * 
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   * met:
   * 
   * Redistributions of source code must retain the above copyright notice,
   * this list of conditions and the following disclaimer.
   * 
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   * documentation and/or other materials provided with the distribution.
   * 
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   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   * 
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  \**************************************************************************/
  
  /*!
    \class SoLineSet SoLineSet.h Inventor/nodes/SoLineSet.h
    \brief The SoLineSet class is used to render and organize non-indexed polylines.
  
    \ingroup nodes
  
    Polylines are specified using the numVertices field. Coordinates,
    normals, materials and texture coordinates are fetched in order from
    the current state or from the vertexProperty node if set. For
    example, if numVertices is set to [3, 4, 2], this node would specify
    a line through coordinates 0, 1 and 2, a line through coordinates 3, 4, 5
    and 6, and finally a single line segment between coordinates 7 and 8.
  
    Here's a very simple usage example:
  
    \verbatim
    #Inventor V2.1 ascii
  
    Separator {
       Coordinate3 {
          point [ 0 0 0, 1 1 1, 2 1 1, 2 2 1, 2 2 2, 2 2 3, 2 3 2, 2 3 3, 3 3 3 ]
       }
  
       LineSet {
          numVertices [ 3, 4, 2 ]
       }
    }
    \endverbatim
  
  
    Binding PER_VERTEX, PER_FACE, PER_PART or OVERALL can be set for
    material, and normals. The default material binding is OVERALL. The
    default normal binding is PER_VERTEX. If no normals are set, the
    line set will be rendered with lighting disabled.
  
    The width of the rendered lines can be controlled through the
    insertion of an SoDrawStyle node in front of SoLineSet node(s) in
    the scenegraph.
  
    <b>FILE FORMAT/DEFAULTS:</b>
    \code
      LineSet {
          vertexProperty NULL
          startIndex 0
          numVertices -1
      }
    \endcode
  
    \sa SoIndexedLineSet
  */
  
  #include <Inventor/nodes/SoLineSet.h>
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif // HAVE_CONFIG_H
  
  #include <Inventor/misc/SoState.h>
  #include <Inventor/bundles/SoTextureCoordinateBundle.h>
  #include <Inventor/caches/SoNormalCache.h>
  #include <Inventor/SoPrimitiveVertex.h>
  #include <Inventor/caches/SoBoundingBoxCache.h>
  #include <Inventor/actions/SoGLRenderAction.h>
  #include <Inventor/actions/SoGetBoundingBoxAction.h>
  #include <Inventor/system/gl.h>
  #include <Inventor/actions/SoGetPrimitiveCountAction.h>
  #include <Inventor/elements/SoGLCoordinateElement.h>
  #include <Inventor/elements/SoNormalBindingElement.h>
  #include <Inventor/elements/SoMaterialBindingElement.h>
  #include <Inventor/errors/SoDebugError.h>
  #include <Inventor/bundles/SoMaterialBundle.h>
  #include <Inventor/elements/SoDrawStyleElement.h>
  #include <Inventor/elements/SoLazyElement.h>
  #include <Inventor/details/SoLineDetail.h>
  
  #include "rendering/SoGL.h"
  #include "nodes/SoSubNodeP.h"
  
  /*!
    \var SoMFInt32 SoLineSet::numVertices
    Used to specify polylines. Each entry specifies the number of coordinates
    in a line. The coordinates are taken in order from the state or from
    the vertexProperty node.
  */
  
  // *************************************************************************
  
  SO_NODE_SOURCE(SoLineSet);
  
  /*!
    Constructor.
  */
  SoLineSet::SoLineSet()
  {
    SO_NODE_INTERNAL_CONSTRUCTOR(SoLineSet);
  
    SO_NODE_ADD_FIELD(numVertices, (-1));
  }
  
  /*!
    Destructor.
  */
  SoLineSet::~SoLineSet()
  {
  }
  
  // doc from parent
  void
  SoLineSet::computeBBox(SoAction * action, SbBox3f & box, SbVec3f & center)
  {
    int32_t numvertices = 0;
    for (int i=0; i < this->numVertices.getNum(); i++)
      numvertices += this->numVertices[i];
    inherited::computeCoordBBox(action, numvertices, box, center);
  }
  
  //
  // translates the current material binding to the internal Binding enum
  //
  SoLineSet::Binding
  SoLineSet::findMaterialBinding(SoState * const state) const
  {
    Binding binding = OVERALL;
    SoMaterialBindingElement::Binding matbind =
      SoMaterialBindingElement::get(state);
  
    switch (matbind) {
    case SoMaterialBindingElement::OVERALL:
      binding = OVERALL;
      break;
    case SoMaterialBindingElement::PER_VERTEX:
    case SoMaterialBindingElement::PER_VERTEX_INDEXED:
      binding = PER_VERTEX;
      break;
    case SoMaterialBindingElement::PER_PART:
    case SoMaterialBindingElement::PER_PART_INDEXED:
      binding = PER_SEGMENT;
      break;
    case SoMaterialBindingElement::PER_FACE:
    case SoMaterialBindingElement::PER_FACE_INDEXED:
      binding = PER_LINE;
      break;
    default:
      binding = OVERALL;
  #if COIN_DEBUG
      SoDebugError::postWarning("SoLineSet::findMaterialBinding",
                                "unknown material binding setting");
  #endif // COIN_DEBUG
      break;
    }
    return binding;
  }
  
  
  //
  // translates the current normal binding to the internal Binding enum
  //
  SoLineSet::Binding
  SoLineSet::findNormalBinding(SoState * const state) const
  {
    Binding binding = PER_VERTEX;
  
    SoNormalBindingElement::Binding normbind =
      SoNormalBindingElement::get(state);
  
    switch (normbind) {
    case SoMaterialBindingElement::OVERALL:
      binding = OVERALL;
      break;
    case SoMaterialBindingElement::PER_VERTEX:
    case SoMaterialBindingElement::PER_VERTEX_INDEXED:
      binding = PER_VERTEX;
      break;
    case SoMaterialBindingElement::PER_PART:
    case SoMaterialBindingElement::PER_PART_INDEXED:
      binding = PER_SEGMENT;
      break;
    case SoMaterialBindingElement::PER_FACE:
    case SoMaterialBindingElement::PER_FACE_INDEXED:
      binding = PER_LINE;
      break;
    default:
      binding = PER_VERTEX;
  #if COIN_DEBUG
      SoDebugError::postWarning("SoLineSet::findNormalBinding",
                                "unknown normal binding setting");
  #endif // COIN_DEBUG
      break;
    }
    return binding;
  }
  
  namespace { namespace SoGL { namespace LineSet {
  
    enum AttributeBinding {
      OVERALL = 0,
      PER_LINE = 1,
      PER_SEGMENT = 2,
      PER_VERTEX = 3
    };
  
    template < int NormalBinding,
               int MaterialBinding,
               int TexturingEnabled >
    static void GLRender(const SoGLCoordinateElement * coords,
                         const SbVec3f *normals,
                         SoMaterialBundle * mb,
                         const SoTextureCoordinateBundle * tb,
                         int32_t idx,
                         const int32_t *ptr,
                         const int32_t *end,
                         SbBool needNormals,
                         SbBool drawPoints)
    {
      const SbVec3f * coords3d = NULL;
      const SbVec4f * coords4d = NULL;
      const SbBool is3d = coords->is3D();
      if (is3d) {
        coords3d = coords->getArrayPtr3();
      }
      else {
        coords4d = coords->getArrayPtr4();
      }
  
      // This is the same code as in SoGLCoordinateElement::send().
      // It is inlined here for speed (~15% speed increase).
  #define SEND_VERTEX(_idx_)                                        \
      if (is3d) glVertex3fv((const GLfloat*) (coords3d + _idx_)); \
      else glVertex4fv((const GLfloat*) (coords4d + _idx_));
  
      SbVec3f dummynormal(0.0f, 0.0f, 1.0f);
      const SbVec3f * currnormal = &dummynormal;
      if (normals) currnormal = normals;
      if ((AttributeBinding)NormalBinding == OVERALL) {
        if (needNormals)
          glNormal3fv((const GLfloat *)currnormal);
      }
  
      int matnr = 0;
      int texnr = 0;
  
      if ((AttributeBinding)NormalBinding == PER_SEGMENT ||
          (AttributeBinding)MaterialBinding == PER_SEGMENT) {
  
        if (drawPoints) glBegin(GL_POINTS);
        else glBegin(GL_LINES);
  
        while (ptr < end) {
          int n = *ptr++;
          if (n < 2) {
            idx += n;
            continue;
          }
          if ((AttributeBinding)MaterialBinding == PER_LINE ||
              (AttributeBinding)MaterialBinding == PER_VERTEX) {
            mb->send(matnr++, TRUE);
          }
          if ((AttributeBinding)NormalBinding == PER_LINE ||
              (AttributeBinding)NormalBinding == PER_VERTEX) {
            currnormal = normals++;
            glNormal3fv((const GLfloat*)currnormal);
          }
          if (TexturingEnabled == TRUE) {
            tb->send(texnr++, coords->get3(idx), *currnormal);
          }
  
          while (--n) {
            if ((AttributeBinding)MaterialBinding == PER_SEGMENT) {
              mb->send(matnr++, TRUE);
            }
            if ((AttributeBinding)NormalBinding == PER_SEGMENT) {
              currnormal = normals++;
              glNormal3fv((const GLfloat*)currnormal);
            }
            SEND_VERTEX(idx);
            idx++;
  
            if ((AttributeBinding)NormalBinding == PER_VERTEX) {
              currnormal = normals++;
              glNormal3fv((const GLfloat *)currnormal);
            }
            if ((AttributeBinding)MaterialBinding == PER_VERTEX) {
              mb->send(matnr++, TRUE);
            }
            if (TexturingEnabled == TRUE) {
              tb->send(texnr++, coords->get3(idx), *currnormal);
            }
            SEND_VERTEX(idx);
          }
          idx++;
        }
        glEnd();
  
      } else { // NBINDING==PER_SEGMENT || MBINDING==PER_SEGMENT
  
        if (drawPoints) glBegin(GL_POINTS);
        while (ptr < end) {
          int n = *ptr++;
          if (n < 2) {
            idx += n; // FIXME: is this correct?
            continue;
          }
          n -= 2;
          if (!drawPoints) glBegin(GL_LINE_STRIP);
  
          if ((AttributeBinding)NormalBinding != OVERALL) {
            currnormal = normals++;
            glNormal3fv((const GLfloat *)currnormal);
          }
          if ((AttributeBinding)MaterialBinding != OVERALL) {
            mb->send(matnr++, TRUE);
          }
          if (TexturingEnabled == TRUE) {
            tb->send(texnr++, coords->get3(idx), *currnormal);
          }
          SEND_VERTEX(idx);
          idx++;
          do {
            if ((AttributeBinding)NormalBinding == PER_VERTEX) {
              currnormal = normals++;
              glNormal3fv((const GLfloat *)currnormal);
            }
            if ((AttributeBinding)MaterialBinding == PER_VERTEX) {
              mb->send(matnr++, TRUE);
            }
            if (TexturingEnabled == TRUE) {
              tb->send(texnr++, coords->get3(idx), *currnormal);
            }
            SEND_VERTEX(idx);
            idx++;
          } while (n--);
          if (!drawPoints) glEnd();
        }
      }
      if (drawPoints) glEnd();
  #undef SEND_VERTEX
    }
  
  } } } // namespace
  
  // doc from parent
  void
  SoLineSet::initClass(void)
  {
    SO_NODE_INTERNAL_INIT_CLASS(SoLineSet, SO_FROM_INVENTOR_1);
  }
  
  #define SOGL_LINESET_GLRENDER_CALL_FUNC(normalbinding, materialbinding, texturing, args) \
    SoGL::LineSet::GLRender<normalbinding, materialbinding, texturing> args
  
  #define SOGL_LINESET_GLRENDER_RESOLVE_ARG3(normalbinding, materialbinding, texturing, args) \
    if (texturing) {                                                      \
      SOGL_LINESET_GLRENDER_CALL_FUNC(normalbinding, materialbinding, TRUE, args); \
    } else {                                                              \
      SOGL_LINESET_GLRENDER_CALL_FUNC(normalbinding, materialbinding, FALSE, args); \
    }
  
  #define SOGL_LINESET_GLRENDER_RESOLVE_ARG2(normalbinding, materialbinding, texturing, args) \
    switch (materialbinding) {                                            \
    case SoGL::LineSet::OVERALL:                                          \
      SOGL_LINESET_GLRENDER_RESOLVE_ARG3(normalbinding, SoGL::LineSet::OVERALL, texturing, args); \
      break;                                                              \
    case SoGL::LineSet::PER_LINE:                                         \
      SOGL_LINESET_GLRENDER_RESOLVE_ARG3(normalbinding, SoGL::LineSet::PER_LINE, texturing, args); \
      break;                                                              \
    case SoGL::LineSet::PER_SEGMENT:                                      \
      SOGL_LINESET_GLRENDER_RESOLVE_ARG3(normalbinding, SoGL::LineSet::PER_SEGMENT, texturing, args); \
      break;                                                              \
    case SoGL::LineSet::PER_VERTEX:                                       \
      SOGL_LINESET_GLRENDER_RESOLVE_ARG3(normalbinding, SoGL::LineSet::PER_VERTEX, texturing, args); \
      break;                                                              \
    default:                                                              \
      assert(!"invalid materialbinding argument");                        \
      break;                                                              \
    }
  
  #define SOGL_LINESET_GLRENDER_RESOLVE_ARG1(normalbinding, materialbinding, texturing, args) \
    switch (normalbinding) {                                              \
    case SoGL::LineSet::OVERALL:                                          \
      SOGL_LINESET_GLRENDER_RESOLVE_ARG2(SoGL::LineSet::OVERALL, materialbinding, texturing, args); \
      break;                                                              \
    case SoGL::LineSet::PER_LINE:                                         \
      SOGL_LINESET_GLRENDER_RESOLVE_ARG2(SoGL::LineSet::PER_LINE, materialbinding, texturing, args); \
      break;                                                              \
    case SoGL::LineSet::PER_SEGMENT:                                      \
      SOGL_LINESET_GLRENDER_RESOLVE_ARG2(SoGL::LineSet::PER_SEGMENT, materialbinding, texturing, args); \
      break;                                                              \
    case SoGL::LineSet::PER_VERTEX:                                       \
      SOGL_LINESET_GLRENDER_RESOLVE_ARG2(SoGL::LineSet::PER_VERTEX, materialbinding, texturing, args); \
      break;                                                              \
    default:                                                              \
      assert(!"invalid normalbinding argument");                          \
      break;                                                              \
    }
  
  #define SOGL_LINESET_GLRENDER(normalbinding, materialbinding, texturing, args) \
    SOGL_LINESET_GLRENDER_RESOLVE_ARG1(normalbinding, materialbinding, texturing, args)
  
  // doc from parent
  void
  SoLineSet::GLRender(SoGLRenderAction * action)
  {
    SoState * state = action->getState();
    SbBool didpush = FALSE;
  
    if (this->vertexProperty.getValue()) {
      state->push();
      didpush = TRUE;
      this->vertexProperty.getValue()->GLRender(action);
    }
  
    if (!this->shouldGLRender(action)) {
      if (didpush) {
        state->pop();
      }
      return;
    }
  
    int32_t idx = this->startIndex.getValue();
    int32_t dummyarray[1];
    const int32_t * ptr = this->numVertices.getValues(0);
    const int32_t * end = ptr + this->numVertices.getNum();
    if ((end - ptr == 1) && ptr[0] == 0) {
      if (didpush) state->pop();
      return; // nothing to render
    }
    this->fixNumVerticesPointers(state, ptr, end, dummyarray);
  
  
    SoMaterialBundle mb(action);
    SoTextureCoordinateBundle tb(action, TRUE, FALSE);
    SbBool doTextures = tb.needCoordinates();
  
    const SoCoordinateElement * tmp;
    const SbVec3f * normals;
  
    SbBool needNormals = !mb.isColorOnly() || tb.isFunction();
  
    SoVertexShape::getVertexData(state, tmp, normals,
                                 needNormals);
    if (normals == NULL && needNormals) {
      needNormals = FALSE;
      if (!didpush) {
        state->push();
        didpush = TRUE;
      }
      SoLazyElement::setLightModel(state, SoLazyElement::BASE_COLOR);
    }
  
    const SoGLCoordinateElement * coords = (SoGLCoordinateElement *)tmp;
  
    Binding mbind = findMaterialBinding(action->getState());
  
  
    Binding nbind;
    if (!needNormals) nbind = OVERALL;
    else nbind = findNormalBinding(action->getState());
  
    mb.sendFirst(); // make sure we have the correct material
  
    SbBool drawPoints =
      SoDrawStyleElement::get(state) == SoDrawStyleElement::POINTS;
  
    SOGL_LINESET_GLRENDER(nbind, mbind, doTextures, (coords,
                                                     normals,
                                                     &mb,
                                                     &tb,
                                                     idx,
                                                     ptr,
                                                     end,
                                                     needNormals,
                                                     drawPoints));
  
    if (didpush)
      state->pop();
  
    int numv = this->numVertices.getNum();
    // send approx number of lines for autocache handling
    sogl_autocache_update(state, numv ?
                          (this->numVertices[0]-1)*numv : 0, FALSE);
  }
  
  #undef SOGL_LINESET_GLRENDER_CALL_FUNC
  #undef SOGL_LINESET_GLRENDER_RESOLVE_ARG3
  #undef SOGL_LINESET_GLRENDER_RESOLVE_ARG2
  #undef SOGL_LINESET_GLRENDER_RESOLVE_ARG1
  #undef SOGL_LINESET_GLRENDER
  
  // Documented in superclass.
  SbBool
  SoLineSet::generateDefaultNormals(SoState * , SoNormalCache * nc)
  {
    // not possible to generate normals for LineSet
    nc->set(0, NULL);
    return TRUE;
  }
  
  // Documented in superclass.
  SbBool
  SoLineSet::generateDefaultNormals(SoState *, SoNormalBundle *)
  {
    return FALSE;
  }
  
  // doc from parent
  void
  SoLineSet::getBoundingBox(SoGetBoundingBoxAction * action)
  {
    inherited::getBoundingBox(action);
    // notify open (if any) bbox caches about lines in this shape
    SoBoundingBoxCache::setHasLinesOrPoints(action->getState());
  }
  
  // doc from parent
  void
  SoLineSet::getPrimitiveCount(SoGetPrimitiveCountAction *action)
  {
    if (!this->shouldPrimitiveCount(action)) return;
  
    int32_t dummyarray[1];
    const int32_t *ptr = this->numVertices.getValues(0);
    const int32_t *end = ptr + this->numVertices.getNum();
  
    if ((end-ptr == 1) && (*ptr == 0)) return;
  
    this->fixNumVerticesPointers(action->getState(), ptr, end, dummyarray);
  
    if (action->canApproximateCount()) {
      const ptrdiff_t diff = end - ptr;
      action->addNumLines((int)diff);
    }
    else {
      int cnt = 0;
      while (ptr < end) {
        cnt += *ptr++ - 1;
      }
      action->addNumLines(cnt);
    }
  }
  
  // doc from parent
  void
  SoLineSet::generatePrimitives(SoAction *action)
  {
    SoState * state = action->getState();
  
    if (this->vertexProperty.getValue()) {
      state->push();
      this->vertexProperty.getValue()->doAction(action);
    }
  
    const SoCoordinateElement *coords;
    const SbVec3f * normals;
    SbBool doTextures;
    SbBool needNormals = TRUE;
  
    SoVertexShape::getVertexData(action->getState(), coords, normals,
                                 needNormals);
  
    if (normals == NULL) needNormals = FALSE;
  
    SoTextureCoordinateBundle tb(action, FALSE, FALSE);
    doTextures = tb.needCoordinates();
  
    Binding mbind = findMaterialBinding(action->getState());
    Binding nbind = findNormalBinding(action->getState());
  
    if (!needNormals) nbind = OVERALL;
  
    SoPrimitiveVertex vertex;
    SoLineDetail lineDetail;
    SoPointDetail pointDetail;
  
    vertex.setDetail(&pointDetail);
  
    SbVec3f dummynormal(0.0f, 0.0f, 1.0f);
    const SbVec3f * currnormal = &dummynormal;
    if (normals) currnormal = normals;
    if (nbind == OVERALL && needNormals) {
      vertex.setNormal(*currnormal);
    }
  
    int32_t idx = this->startIndex.getValue();
    int32_t dummyarray[1];
    const int32_t * ptr = this->numVertices.getValues(0);
    const int32_t * end = ptr + this->numVertices.getNum();
    this->fixNumVerticesPointers(state, ptr, end, dummyarray);
  
    int normnr = 0;
    int matnr = 0;
    int texnr = 0;
  
    if (nbind == PER_SEGMENT || mbind == PER_SEGMENT) {
      this->beginShape(action, SoShape::LINES, &lineDetail);
  
      while (ptr < end) {
        int n = *ptr++;
        if (n < 2) {
          idx += n;
          continue;
        }
        if (nbind == PER_LINE || nbind == PER_VERTEX) {
          pointDetail.setNormalIndex(normnr);
          currnormal = &normals[normnr++];
          vertex.setNormal(*currnormal);
        }
        if (mbind == PER_LINE || mbind == PER_VERTEX) {
          pointDetail.setMaterialIndex(matnr);
          vertex.setMaterialIndex(matnr++);
        }
        if (doTextures) {
          if (tb.isFunction())
            vertex.setTextureCoords(tb.get(coords->get3(idx), *currnormal));
          else {
            pointDetail.setTextureCoordIndex(texnr);
            vertex.setTextureCoords(tb.get(texnr++));
          }
        }
        while (--n) {
          if (nbind == PER_SEGMENT) {
            pointDetail.setNormalIndex(normnr);
            currnormal = &normals[normnr++];
            vertex.setNormal(*currnormal);
          }
          if (mbind == PER_SEGMENT) {
            pointDetail.setMaterialIndex(matnr);
            vertex.setMaterialIndex(matnr++);
          }
          pointDetail.setCoordinateIndex(idx);
          vertex.setPoint(coords->get3(idx++));
          this->shapeVertex(&vertex);
  
          if (nbind == PER_VERTEX) {
            pointDetail.setNormalIndex(normnr);
            currnormal = &normals[normnr++];
            vertex.setNormal(*currnormal);
          }
          if (mbind == PER_VERTEX) {
            pointDetail.setMaterialIndex(matnr);
            vertex.setMaterialIndex(matnr++);
          }
          if (doTextures) {
            if (tb.isFunction())
              vertex.setTextureCoords(tb.get(coords->get3(idx), *currnormal));
            else {
              pointDetail.setTextureCoordIndex(texnr);
              vertex.setTextureCoords(tb.get(texnr++));
            }
          }
          pointDetail.setCoordinateIndex(idx);
          vertex.setPoint(coords->get3(idx));
          this->shapeVertex(&vertex);
          lineDetail.incPartIndex();
        }
        lineDetail.incLineIndex();
        idx++; // next (poly)line should use the next index
      }
      this->endShape();
    }
    else {
      while (ptr < end) {
        lineDetail.setPartIndex(0);
        int n = *ptr++;
        if (n < 2) {
          idx += n;
          continue;
        }
        n -= 2;
        this->beginShape(action, SoShape::LINE_STRIP, &lineDetail);
        if (nbind != OVERALL) {
          pointDetail.setNormalIndex(normnr);
          currnormal = &normals[normnr++];
          vertex.setNormal(*currnormal);
        }
        if (mbind != OVERALL) {
          pointDetail.setMaterialIndex(matnr);
          vertex.setMaterialIndex(matnr++);
        }
        if (doTextures) {
          if (tb.isFunction())
            vertex.setTextureCoords(tb.get(coords->get3(idx), *currnormal));
          else {
            pointDetail.setTextureCoordIndex(texnr);
            vertex.setTextureCoords(tb.get(texnr++));
          }
        }
        pointDetail.setCoordinateIndex(idx);
        vertex.setPoint(coords->get3(idx++));
        this->shapeVertex(&vertex);
        do {
          if (nbind == PER_VERTEX) {
            pointDetail.setNormalIndex(normnr);
            currnormal = &normals[normnr++];
            vertex.setNormal(*currnormal);
          }
          if (mbind == PER_VERTEX) {
            pointDetail.setMaterialIndex(matnr);
            vertex.setMaterialIndex(matnr++);
          }
          if (doTextures) {
            if (tb.isFunction())
              vertex.setTextureCoords(tb.get(coords->get3(idx), *currnormal));
            else {
              pointDetail.setTextureCoordIndex(texnr);
              vertex.setTextureCoords(tb.get(texnr++));
            }
          }
          pointDetail.setCoordinateIndex(idx);
          vertex.setPoint(coords->get3(idx++));
          this->shapeVertex(&vertex);
          lineDetail.incPartIndex();
        } while (n--);
        this->endShape();
        lineDetail.incLineIndex();
      }
    }
    if (this->vertexProperty.getValue())
      state->pop();
  }
  