Arguments to cxGeoScale ??

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2 total messages Started by Chris Ross Tue, 06 Oct 1992 16:51

#143

Author: Chris Ross
Date: Tue, 06 Oct 1992 16:51

19 lines
912 bytes

Explorer guys:

The Module Builder's guide defines these transformation routines
as:
    cxGeo cxGeoScale(float x, float y, float z)
    cxGeo cxGeoRotate(float theta, float x, float y, float z)

but in <cx/Geometry.h> they're prototyped as:

void cxGeoRotate(float,float,float,float,float,float,float);
void cxGeoScale(float,float,float,float,float,float);

Which is right and what are the extra arguments?

Chris
--
Chris Ross
ross@orion.nrl.navy.mil
Naval Research Lab, Washington, DC

Re: Arguments to cxGeoScale ??

#145

Author: Roy Hashimoto
Date: Tue, 06 Oct 1992 18:51

30 lines
1513 bytes

In article <3857@ra.nrl.navy.mil> ross@orion.nrl.navy.mil (Chris Ross) writes:
>Explorer guys:
>
>The Module Builder's guide defines these transformation routines
>as:
>    cxGeo cxGeoScale(float x, float y, float z)
>    cxGeo cxGeoRotate(float theta, float x, float y, float z)
>
>but in <cx/Geometry.h> they're prototyped as:
>
>void cxGeoRotate(float,float,float,float,float,float,float);
>void cxGeoScale(float,float,float,float,float,float);
>
>Which is right and what are the extra arguments?

The Module Builder's Guide should have been correct.  Unfortunately,
these routines went out with the older interface.  The interface has
been corrected for version 2.0.

For version 1.0 users, the outdated interface is:

void cxGeoRotate(float theta, float x, float y, float z,
	float xc, float yc, float zc);
void cxGeoScale(float x, float y, float z, float xc, float yc, float zc);

The extra arguments were originally supposed to indicate the center of
scaling or rotation.  You should pass them all in as zero.

Roy Hashimoto
hashimoto@sgi.com

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