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This commit is contained in:
Mark Mine 2002-05-10 02:48:52 +00:00
parent e2f8ed6c4b
commit 8f33fb94b7
1 changed files with 10 additions and 9 deletions
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19
panda/src/parametrics/parametricCurve.cxx
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@ -835,34 +835,35 @@ bool ParametricCurve::
r_find_t(float target_length, float &found_t,
float t1, float t2,
const LPoint3f &p1, const LPoint3f &p2) const {
static const float t_tolerance = 0.00001f;
static const float t_tolerance = 0.001f;
parametrics_cat.debug()
<< "target_length " << target_length << " t1 " << t1 << " t2 " << t2 << "\n";
if (parametrics_cat.is_spam()) {
parametrics_cat.spam()
<< "target_length " << target_length << " t1 " << t1 << " t2 " << t2 << "\n";
}
// Is the target point close to the near endpoint
if (target_length < t_tolerance) {
// Stop recursing--we've just walked off the limit for
// representing smaller values of t.
found_t = t1;
return true;
}
// Compute distance between two endpoints
// No, compute distance between two endpoints
float point_dist;
point_dist = (p2 - p1).length();
// Is point past endpoint?
// Is the target point past the far endpoint?
if (point_dist < target_length) {
return false;
}
// Is point close to far endpoint?
// Is the target point close to far endpoint?
if ( (point_dist - target_length ) < t_tolerance ) {
found_t = t2;
return true;
}
// Nope, subdivide and continue
// No, subdivide and continue
float tmid;
LPoint3f pmid;
float left;