Contour interpolator for to place points on polygonal surfaces. More...
#include <vtkPolygonalSurfaceContourLineInterpolator.h>
Detailed Description
Contour interpolator for to place points on polygonal surfaces.
vtkPolygonalSurfaceContourLineInterpolator interpolates and places contour points on polygonal surfaces. The class interpolates nodes by computing a graph geodesic laying on the polygonal data. By graph Geodesic, we mean that the line interpolating the two end points traverses along on the mesh edges so as to form the shortest path. A Dijkstra algorithm is used to compute the path. See vtkDijkstraGraphGeodesicPath.
The class is mean to be used in conjunction with vtkPolygonalSurfacePointPlacer. The reason for this weak coupling is a performance issue, both classes need to perform a cell pick, and coupling avoids multiple cell picks (cell picks are slow).
- Warning:
- You should have computed cell normals for the input polydata.
Definition at line 51 of file vtkPolygonalSurfaceContourLineInterpolator.h.
Member Typedef Documentation
Standard methods for instances of this class.
Reimplemented from vtkPolyDataContourLineInterpolator.
Definition at line 56 of file vtkPolygonalSurfaceContourLineInterpolator.h.
Constructor & Destructor Documentation
| vtkPolygonalSurfaceContourLineInterpolator::vtkPolygonalSurfaceContourLineInterpolator | ( | ) | [protected] |
| vtkPolygonalSurfaceContourLineInterpolator::~vtkPolygonalSurfaceContourLineInterpolator | ( | ) | [protected] |
Member Function Documentation
| static int vtkPolygonalSurfaceContourLineInterpolator::IsTypeOf | ( | const char * | type | ) | [static] |
Standard methods for instances of this class.
Reimplemented from vtkPolyDataContourLineInterpolator.
| virtual int vtkPolygonalSurfaceContourLineInterpolator::IsA | ( | const char * | type | ) | [virtual] |
Standard methods for instances of this class.
Reimplemented from vtkPolyDataContourLineInterpolator.
| static vtkPolygonalSurfaceContourLineInterpolator* vtkPolygonalSurfaceContourLineInterpolator::SafeDownCast | ( | vtkObjectBase * | o | ) | [static] |
Standard methods for instances of this class.
Reimplemented from vtkPolyDataContourLineInterpolator.
| virtual vtkObjectBase* vtkPolygonalSurfaceContourLineInterpolator::NewInstanceInternal | ( | ) | const [protected, virtual] |
Standard methods for instances of this class.
Reimplemented from vtkPolyDataContourLineInterpolator.
| vtkPolygonalSurfaceContourLineInterpolator* vtkPolygonalSurfaceContourLineInterpolator::NewInstance | ( | ) | const |
Standard methods for instances of this class.
Reimplemented from vtkPolyDataContourLineInterpolator.
| void vtkPolygonalSurfaceContourLineInterpolator::PrintSelf | ( | ostream & | os, |
| vtkIndent | indent | ||
| ) | [virtual] |
Standard methods for instances of this class.
Reimplemented from vtkPolyDataContourLineInterpolator.
| static vtkPolygonalSurfaceContourLineInterpolator* vtkPolygonalSurfaceContourLineInterpolator::New | ( | ) | [static] |
Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
Reimplemented from vtkObject.
| virtual int vtkPolygonalSurfaceContourLineInterpolator::InterpolateLine | ( | vtkRenderer * | ren, |
| vtkContourRepresentation * | rep, | ||
| int | idx1, | ||
| int | idx2 | ||
| ) | [virtual] |
Subclasses that wish to interpolate a line segment must implement this. For instance vtkBezierContourLineInterpolator adds nodes between idx1 and idx2, that allow the contour to adhere to a bezier curve.
Implements vtkPolyDataContourLineInterpolator.
| virtual int vtkPolygonalSurfaceContourLineInterpolator::UpdateNode | ( | vtkRenderer * | , |
| vtkContourRepresentation * | , | ||
| double * | vtkNotUsednode, | ||
| int | vtkNotUsedidx | ||
| ) | [virtual] |
The interpolator is given a chance to update the node. vtkImageContourLineInterpolator updates the idx'th node in the contour, so it automatically sticks to edges in the vicinity as the user constructs the contour. Returns 0 if the node (world position) is unchanged.
Implements vtkPolyDataContourLineInterpolator.
| virtual void vtkPolygonalSurfaceContourLineInterpolator::SetDistanceOffset | ( | double | ) | [virtual] |
Height offset at which points may be placed on the polygonal surface. If you specify a non-zero value here, be sure to have computed vertex normals on your input polygonal data. (easily done with vtkPolyDataNormals).
| virtual double vtkPolygonalSurfaceContourLineInterpolator::GetDistanceOffset | ( | ) | [virtual] |
Height offset at which points may be placed on the polygonal surface. If you specify a non-zero value here, be sure to have computed vertex normals on your input polygonal data. (easily done with vtkPolyDataNormals).
| void vtkPolygonalSurfaceContourLineInterpolator::GetContourPointIds | ( | vtkContourRepresentation * | rep, |
| vtkIdList * | idList | ||
| ) |
Get the contour point ids. These point ids correspond to those on the polygonal surface
Member Data Documentation
Draw the polyline at a certain height (in the direction of the vertex normal) above the polydata.
Definition at line 102 of file vtkPolygonalSurfaceContourLineInterpolator.h.
The documentation for this class was generated from the following file:
- dox/Interaction/Widgets/vtkPolygonalSurfaceContourLineInterpolator.h
