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This commit is contained in:
Bozo The Builder
2020-09-11 14:29:29 -07:00
parent e15c463638
commit 6a1fea7512
74 changed files with 12912 additions and 3982 deletions
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24
opennurbs_evaluate_nurbs.cpp
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@@ -727,29 +727,35 @@ bool ON_EvaluateNurbsBasis(
// fail to be one by a bit or two when knot
// values are large.
x = 1.0-ON_SQRT_EPSILON;
if ( N[0] > x )
if ( N[0] >= x )
{
if ( N[0] != 1.0 && N[0] < 1.0 + ON_SQRT_EPSILON )
if ( N[0] != 1.0 && N[0] <= 1.0 + ON_SQRT_EPSILON )
{
r = 1;
for ( j = 1; j <= d && r; j++ )
for ( j = 1; j <= d; j++ )
{
if ( N[j] != 0.0 )
if (N[j] != 0.0)
{
r = 0;
break;
}
}
if (r)
N[0] = 1.0;
}
}
else if ( N[d] > x )
else if ( N[d] >= x )
{
if ( N[d] != 1.0 && N[d] < 1.0 + ON_SQRT_EPSILON )
if ( N[d] != 1.0 && N[d] <= 1.0 + ON_SQRT_EPSILON )
{
r = 1;
for ( j = 0; j < d && r; j++ )
for ( j = 0; j < d; j++ )
{
if ( N[j] != 0.0 )
{
r = 0;
break;
}
}
if (r)
N[d] = 1.0;
@@ -1320,8 +1326,8 @@ bool ON_EvaluateNurbsDeBoor(
* argument. In most cases, you can avoid resetting knots
* by carefully choosing the value of "side" and "mult_k".
* TL_EvDeBoor()
* 0: successful
* -1: knot[order-2] == knot[order-1]
* true: successful
* false: knot[order-2] == knot[order-1]
*
* COMMENTS:
*