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#!N
#!N #!Rdxvpbb DXValidPositionsBoundaryBox #!N #!N Function #!N #!N Computes the
boundary box of the valid positions of an Object #!F-adobe-times-bold-r-normal--18* o
#!EF . #!N #!N Syntax #!N #!F-adobe-times-bold-r-normal--18* #include <dx/dx.h> DXValidPositionsBoundaryBox(Object o,
Point *box) #!EF #!N #!N Functional Details #!N #!N If #!F-adobe-times-bold-r-normal--18*
o #!EF contains any invalid positions, this routine adds (to #!F-adobe-times-bold-r-normal--18*
o #!EF or to any of its descendents that are Fields)
a "valid box" component consisting of an Array of 2( #!F-adobe-times-medium-i-normal--18*
d #!EF ) points that are the corners of a boundary
box (where #!F-adobe-times-medium-i-normal--18* d #!EF is the dimensionality of the data).
#!N #!N #!F-adobe-times-bold-r-normal--18* Point #!EF is defined as follows: #!CForestGreen #!N
#!N #!F-adobe-courier-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* #!N typedef struct point { #!N float x,y,z;
#!N } Point, Vector; #!EF #!EF #!N #!N #!EC #!N #!N
#!I0 #!N Notes: #!N #!I30 #!N 1. For data of dimensionality
three or less, the routine returns (in the Array pointed to
by #!F-adobe-times-bold-r-normal--18* box #!EF ) the eight corner points. For dimensionalities
less than three, the extra dimensions of the box returned by
the routine are treated as zero. #!N #!I30 #!N 2. The
boundary box returned by the routine is determined by combining the
boundary boxes of all Fields contained in #!F-adobe-times-bold-r-normal--18* o #!EF .
#!N #!I30 #!N 3. Transformations are considered in computing the boundary
box, but clipping objects are not. And the boundary box is
not guaranteed to be the tightest possible. #!I0 #!N #!N #!N
#!N Return Value #!N #!N Returns #!F-adobe-times-bold-r-normal--18* o #!EF or returns
#!F-adobe-times-bold-r-normal--18* NULL #!EF and might or might not set an error
code, depending on the input. For example, it does not set
an error code if a boundary box cannot be defined for
the given input. #!N #!N See Also #!N #!N #!F-adobe-times-bold-r-normal--18* #!Ldxbb,dxall1176 h DXBoundingBox #!EL
, #!Ldxccvs,dxall1178 h DXChangedComponentValues, DXChangedComponentStructure #!EL , #!Ldxemf,dxall1200 h DXEmptyField #!EL , #!Ldxendf,dxall1201 h DXEndField #!EL , #!Ldxeo,dxall1202 h DXEndObject #!EL , #!Ldxn,dxall1308 h DXNeighbors #!EL ,
#!Ldxs,dxall1396 h DXStatistics #!EL #!EF #!N #!N #!Lerrsec,dxall1094 h Error Handling and Messages #!EL . #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next
Topic #!EF #!N #!N #!Ldxw,dxall1407 h DXWarning #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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