vtkPolygonalSurfaceContourLineInterpolator

Section: Visualization Toolkit Widget Classes

Usage

vtkPolygonalSurfaceContourLineInterpolator interpolates and places contour points on polygonal surfaces. The class interpolates nodes by computing a \em graph \em geodesic lying on the polygonal data. By \em graph \em 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).

To create an instance of class vtkPolygonalSurfaceContourLineInterpolator, simply invoke its constructor as follows

  obj = vtkPolygonalSurfaceContourLineInterpolator

Methods

The class vtkPolygonalSurfaceContourLineInterpolator has several methods that can be used. They are listed below. Note that the documentation is translated automatically from the VTK sources, and may not be completely intelligible. When in doubt, consult the VTK website. In the methods listed below, obj is an instance of the vtkPolygonalSurfaceContourLineInterpolator class.