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Co-authored-by: Alain <alain@mcneel.com>
Co-authored-by: Andrew Le Bihan <andy@mcneel.com>
Co-authored-by: chuck <chuck@mcneel.com>
Co-authored-by: croudyj <croudyj@gmail.com>
Co-authored-by: Dale Fugier <dale@mcneel.com>
Co-authored-by: Giulio Piacentino <giulio@mcneel.com>
Co-authored-by: Greg Arden <greg@mcneel.com>
Co-authored-by: Jussi Aaltonen <jussi@mcneel.com>
Co-authored-by: kike-garbo <kike@mcneel.com>
Co-authored-by: Steve Baer <steve@mcneel.com>
This commit is contained in:
Bozo The Builder
2022-11-21 14:18:57 -08:00
parent e37a90a8a9
commit e7c29061e3
325 changed files with 3592 additions and 2749 deletions
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11
opennurbs_surface.cpp
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@@ -1,7 +1,5 @@
/* $NoKeywords: $ */
/*
//
// Copyright (c) 1993-2012 Robert McNeel & Associates. All rights reserved.
// Copyright (c) 1993-2022 Robert McNeel & Associates. All rights reserved.
// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert
// McNeel & Associates.
//
@@ -12,7 +10,6 @@
// For complete openNURBS copyright information see <http://www.opennurbs.org>.
//
////////////////////////////////////////////////////////////////
*/
#include "opennurbs.h"
@@ -1195,10 +1192,12 @@ ON_Surface::EvNormal( // returns false if unable to evaluate
if ( rc ) {
const double len_ds = ds.Length();
const double len_dt = dt.Length();
// do not reduce the tolerance used here - there is a retry in the code
// below.
if ( len_ds > ON_SQRT_EPSILON*len_dt && len_dt > ON_SQRT_EPSILON*len_ds )
//17 Oct 2022 - Chuck - Added test for parallel partials.
if ( len_ds > ON_SQRT_EPSILON*len_dt && len_dt > ON_SQRT_EPSILON*len_ds &&
ds.IsParallelTo(dt, 0.01*ON_DEFAULT_ANGLE_TOLERANCE) == 0)
{
ON_3dVector a = ds/len_ds;
ON_3dVector b = dt/len_dt;