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/************************************************************************
*
* Generate a set of "valid" matrices (i.e. matrices put together from
* a set of valid translations, scalevectors and rotations) on stdout.
*
************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <Inventor/SoDB.h>
#include <Inventor/SbLinear.h>
float
rndf(void)
{
return (float(rand()) / float(RAND_MAX) - 0.5f) * 4.0f;
}
int
main(int argc, char ** argv)
{
if (argc != 2) {
(void)fprintf(stderr,
"\n\n\tUsage: %s NUM\n\n"
"\tNUM = number of matrices to output.\n\n",
argv[0]);
exit(1);
}
SoDB::init();
srand(19720408);
int num = atoi(argv[1]);
for (int i=0; i < num; i++) {
SbMatrix m;
m.setTransform(// translation
SbVec3f(rndf(), rndf(), rndf()),
// rotation
SbRotation(SbVec3f(rndf(), rndf(), rndf()), rndf()),
// scalevec
SbVec3f(rndf(), rndf(), rndf()),
// scaleorientation
SbRotation(SbVec3f(rndf(), rndf(), rndf()), rndf()),
// center
SbVec3f(rndf(), rndf(), rndf()));
(void)fprintf(stdout,
"%.3f %.3f %.3f %.3f "
"%.3f %.3f %.3f %.3f "
"%.3f %.3f %.3f %.3f "
"%.3f %.3f %.3f %.3f\n",
m[0][0], m[0][1], m[0][2], m[0][3],
m[1][0], m[1][1], m[1][2], m[1][3],
m[2][0], m[2][1], m[2][2], m[2][3],
m[3][0], m[3][1], m[3][2], m[3][3]);
}
return 0;
}
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