FreeMat: vtkGeoGraticule

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vtkGeoGraticule

Section: Visualization Toolkit Geo Vis Classes

# Usage

This filter generates polydata to illustrate the distortions introduced by a map projection. The level parameter specifies the number of lines to be drawn. Poles are treated differently than other regions; hence the use of a Level parameter instead of a NumberOfLines parameter. The latitude and longitude are specified as half-open intervals with units of degrees. By default the latitude bounds are [-90,90[ and the longitude bounds are [0,180[.

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

      obj = vtkGeoGraticule

# Methods

The class vtkGeoGraticule 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 vtkGeoGraticule class.

- `string = obj.GetClassName ()`
- `int = obj.IsA (string name)`
- `vtkGeoGraticule = obj.NewInstance ()`
- `vtkGeoGraticule = obj.SafeDownCast (vtkObject o)`
- `obj.SetLatitudeBounds (double , double )` - The latitude bounds of the graticule.
- `obj.SetLatitudeBounds (double a[2])` - The latitude bounds of the graticule.
- `double = obj. GetLatitudeBounds ()` - The latitude bounds of the graticule.
- `obj.SetLongitudeBounds (double , double )` - The longitude bounds of the graticule.
- `obj.SetLongitudeBounds (double a[2])` - The longitude bounds of the graticule.
- `double = obj. GetLongitudeBounds ()` - The longitude bounds of the graticule.
- `obj.SetLatitudeLevel (int )` - The frequency level of latitude lines.
- `int = obj.GetLatitudeLevelMinValue ()` - The frequency level of latitude lines.
- `int = obj.GetLatitudeLevelMaxValue ()` - The frequency level of latitude lines.
- `int = obj.GetLatitudeLevel ()` - The frequency level of latitude lines.
- `obj.SetLongitudeLevel (int )` - The frequency level of longitude lines.
- `int = obj.GetLongitudeLevelMinValue ()` - The frequency level of longitude lines.
- `int = obj.GetLongitudeLevelMaxValue ()` - The frequency level of longitude lines.
- `int = obj.GetLongitudeLevel ()` - The frequency level of longitude lines.
- `obj.SetGeometryType (int )` - Set//get the type(s) of cells that will be output by the filter. By default, polylines are output. You may also request quadrilaterals. This is a bit vector of GeometryType enums.
- `int = obj.GetGeometryType ()` - Set//get the type(s) of cells that will be output by the filter. By default, polylines are output. You may also request quadrilaterals. This is a bit vector of GeometryType enums.