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#include "../V/lib/Vlib.h"
main () {
int i, k;
VObject *obj;
VPolygon **poly;
VPoint *q, tmp;
VMatrix mtx;
if ((obj = VReadObject(stdin)) == (VObject *) NULL) {
fprintf (stderr, "Error reading the object definition.\n");
exit (1);
}
/*
* Prepare a transformation matrix that:
* (a) swaps X and Y coordinates.
* (b) negates Z coordinate.
*/
VIdentMatrix (&mtx);
mtx.m[0][0] = 0.0;
mtx.m[0][1] = 1.0;
mtx.m[1][0] = 1.0;
mtx.m[1][1] = 0.0;
mtx.m[2][2] = -1.0;
poly = obj->polygon;
for (i=0; i<obj->numPolys; ++i) {
for ((k=0, q=poly[i]->vertex); k<poly[i]->numVtces; (++k, ++q)) {
VTransform(q, &mtx, &tmp);
*q = tmp;
}
}
VWriteObject (stdout, obj);
}
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