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#!N
#!N
#!Rdxqgp DXQueryGridPositions #!N #!N Function #!N #!N Returns information about a
positions grid. #!N #!N Syntax #!N #!F-adobe-times-bold-r-normal--18* #include <dx/dx.h> Array DXQueryGridPositions(Array
a, int *n, int *counts, float *origin, float *deltas) #!EF #!N
#!N Functional Details #!N #!N Returns #!F-adobe-times-bold-r-normal--18* NULL #!EF if #!F-adobe-times-bold-r-normal--18*
a #!EF is not a regular grid of the sort constructed
by #!F-adobe-times-bold-r-normal--18* DXMakeGridPositions #!EF (i.e. a Product Array containing n terms,
each term being a #!F-adobe-times-bold-r-normal--18* TYPE_FLOAT #!EF , n-dimensional Regular Array).
If #!F-adobe-times-bold-r-normal--18* n #!EF is not #!F-adobe-times-bold-r-normal--18* NULL #!EF , it
returns the number of dimensions in the grid in #!F-adobe-times-bold-r-normal--18* *n
#!EF . If #!F-adobe-times-bold-r-normal--18* counts #!EF is not #!F-adobe-times-bold-r-normal--18* NULL #!EF
, it returns the number of points along each delta vector
in the Array pointed to by #!F-adobe-times-bold-r-normal--18* counts #!EF . If
#!F-adobe-times-bold-r-normal--18* origin #!EF is not #!F-adobe-times-bold-r-normal--18* NULL #!EF , it returns
the #!F-adobe-times-bold-r-normal--18* n #!EF -dimensional origin in the Array pointed to
by #!F-adobe-times-bold-r-normal--18* origin #!EF . If #!F-adobe-times-bold-r-normal--18* deltas #!EF is not
#!F-adobe-times-bold-r-normal--18* NULL #!EF , it returns the #!F-adobe-times-bold-r-normal--18* n #!EF #!F-adobe-times-bold-r-normal--18*
n #!EF -dimensional delta vectors in the Array pointed to by
#!F-adobe-times-bold-r-normal--18* deltas #!EF . #!N #!N This routine is commonly used
to determine whether the "positions" components are fully regular and to
provide an easy mechanism for accessing information that describes the regular-positions
grid. The information returned by #!F-adobe-times-bold-r-normal--18* DXQueryGridPositions #!EF often makes it
possible to process regular positions Arrays without explicit expansion. #!N #!N
Array handles provide a simple mechanism for accessing individual elements of
a regular grid without expansion. #!N #!N Return Value #!N #!N
Returns #!F-adobe-times-bold-r-normal--18* a #!EF (if #!F-adobe-times-bold-r-normal--18* a #!EF is a regular
grid ) or #!F-adobe-times-bold-r-normal--18* NULL #!EF (if it is not) without
setting an error code. #!N #!N See Also #!N #!N #!F-adobe-times-bold-r-normal--18*
#!Ldxcah,dxall1189 h DXCreateArrayHandle #!EL , #!Ldxmgcv,dxall1297 h DXMakeGridConnections, DXMakeGridConnectionsV #!EL , #!Ldxmgpv,dxall1298 h DXMakeGridPositions, DXMakeGridPositionsV #!EL , #!Ldxqgc,dxall1343 h DXQueryGridConnections #!EL #!EF #!N #!N #!Lcotas,dxall1074 h Creating Positions and Connections Grids #!EL
. #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Ldxqhe,dxall1345 h DXQueryHashElement #!EL
#!N #!F-adobe-times-medium-i-normal--18* #!N
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