vtkMarchingSquares - generate isoline(s) from structured points set

Super Class: vtkStructuredPointsToPolyDataFilter

Description:

vtkMarchingSquares is a filter that takes as input a structured points set and generates on output one or more isolines. One or more contour values must be specified to generate the isolines. Alternatively, you can specify a min/max scalar range and the number of contours to generate a series of evenly spaced contour values. To generate contour lines the input data must be of topological dimension 2 (i.e., an image). If not, you can use the ImageRange ivar to select an image plane from an input volume. This avoids having to extract a plane first (using vtkExtractSubVolume). The filter deals with this by first trying to use the input data directly, and if not a 2D image, then uses the ImageRange ivar to reduce it to an image.

Caveats:

This filter is specialized to images. If you are interested in contouring other types of data, use the general vtkContourFilter.

See Also:

vtkContourFilter vtkMarchingCubes vtkSliceCubes vtkDividingCubes

Methods:

Detailed Method Descriptions: