GISGrid

Synopsis

produce a set of parallel and meridian lines that can be passed to projection modules

Input Ports

Parameters

Output Ports

Description

It is often useful to overlay parallel and meridian lines when working with information mapped onto a spherical body. The GISGrid module will produce parallel and meridian lines in a mesh field consisting of latitude, longitude, and altitude coordinates. You can set the parallel and meridian increments via the parameters.

Note: GISGrid does not produce labelled parallel and meridian grid lines.

Input Ports

westLongitude

The bounding longitude on the western side of the generated grid.

eastLongitude

The bounding longitude on the eastern side of the generated grid.

northLatitude

The bounding latitude on the northern side of the generated grid.

southLatitude

The bounding latitude on the southern side of the generated grid.

Parameters

parallelIncrement

The number of steps (in degrees) to place the parallels in the generated grid.

meridianIncrements

The number of steps (in degrees) to place the generated meridians.

Output Ports

outLLA

A mesh containing the vertices and line segments of the generated grid of parallel and meridians.

Note: The "units" field is set to "Decimal Degrees" by default.

westLongitude
eastLongitude
northLatitude
southLatitude

These ports correspond exactly to the corresponding input ports. They are provided merely as a convenience for passing parameter information to other modules

Example

Not Available.

File

v/gis1.v

See also

• GISLatLon
• GISProjection
• GISInverseProj
• GISMeshProject
• GISMeshInvProject
• GISCIAMapII
• GISWorldDataBank
• GISMapTransform
• GISMapDisplay

 




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