Contour

DESCRIPTION

Generates contour lines for a 2D dataset or for slices of a 3D dataset. For 3D datasets, slice directions are under user control. The number of contour lines and their values have widget controls. For inputs with several data variables (nDataVar > 1), alternate channels can be contoured using the Channel slider.

Contour lines are colored by an input colormap based on data values. If no colormap is available, then a fixed spectral map is created within the module.

Linear line segments are computed between interpolation points on cell edges. No smoothing is applied.

INPUTS

Port: Input
Type: Lattice
Constraints: 2..3-D
The data to be contoured.

Port: Colormap
Type: Lattice
Optional: This port is optional.
Constraints: 1-D
Constraints: 4-vector
The input color map used to color the line segments (optional).

WIDGETS

Port: I Axis?
Type: Option Menu
Menu Item: On
Menu Item: Off
Activates contouring normal to I axis.

Port: J Axis?
Type: Option Menu
Menu Item: On
Menu Item: Off
Activates contouring normal to J axis.

Port: K Axis?
Type: Option Menu
Menu Item: On
Menu Item: Off
Activates contouring normal to K axis.

Port: Num Levels
Type: Slider
Number of equally spaced contour levels between Min and Max inclusive.

Port: Min Level
Type: Dial
Lower bound for the first contour.

Port: Max Level
Type: Dial
Upper bound for the last contour.

Port: Channel
Type: Slider
The data variable channel to be contoured.

OUTPUTS

Port: Contours
Type: Geometry
The contour lines.

KNOWN PROBLEMS

SEE ALSO

Render, IsosurfaceLat.
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© The Numerical Algorithms Group Ltd, Oxford UK. 2000