IBM Visualization Data Explorer Programmer's Reference

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DXQueryGridConnections

Function

Returns information about a connections grid.

Syntax

#include <dx/dx.h>

Array DXQueryGridConnections(Array a, int *n, int *counts)

Functional Details

This routine can be used to check whether a connections Array is a regular grid.

Returns NULL if a is not an Array of regular grid connections of the sort constructed by DXMakeGridConnections (i.e., a Mesh Array containing only terms of type Path Array). If n is not NULL, returns the number of dimensions in the grid in *n. If counts is not NULL, returns the number of points along each axis in the Array pointed to by counts.

This routine is typically used to recognize "connections" components that are fully regular and, in most cases, much simpler to handle than regular or partially regular connections.

Return Value

Returns a if it is a grid connections Array or returns NULL but does not set an error code.

See Also

DXMakeGridConnections, DXMakeGridConnectionsV, DXMakeGridPositions, DXMakeGridPositionsV, DXQueryGridPositions

"Creating Positions and Connections Grids".


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