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opennurbs_brep_isvalid.cpp
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opennurbs_brep_isvalid.cpp
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//
// Copyright (c) 1993-2022 Robert McNeel & Associates. All rights reserved.
// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert
// McNeel & Associates.
//
// THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
// ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF
// MERCHANTABILITY ARE HEREBY DISCLAIMED.
//
// For complete openNURBS copyright information see <http://www.opennurbs.org>.
//
////////////////////////////////////////////////////////////////
#include "opennurbs.h"
#if !defined(ON_COMPILING_OPENNURBS)
// This check is included in all opennurbs source .c and .cpp files to insure
// ON_COMPILING_OPENNURBS is defined when opennurbs source is compiled.
// When opennurbs source is being compiled, ON_COMPILING_OPENNURBS is defined
// and the opennurbs .h files alter what is declared and how it is declared.
#error ON_COMPILING_OPENNURBS must be defined when compiling opennurbs
#endif
bool
ON_Brep::IsValidVertexTopology( int vertex_index, ON_TextLog* text_log ) const
{
if ( vertex_index < 0 || vertex_index >= m_V.Count() )
{
if ( text_log )
text_log->Print("brep vertex_index = %d (should be >=0 and <%d=brep.m_V.Count() ).\n",
vertex_index, m_V.Count());
return false;
}
const ON_BrepVertex& vertex = m_V[vertex_index];
if ( vertex.m_vertex_index != vertex_index )
{
if ( text_log )
{
text_log->Print("brep.m_V[%d] vertex is not valid.\n",vertex_index);
text_log->PushIndent();
text_log->Print("vertex.m_vertex_index = %d (should be %d).\n",
vertex.m_vertex_index, vertex_index );
text_log->PopIndent();
}
return false;
}
const int vertex_edge_count = vertex.m_ei.Count();
int i, j, vei, ei;
for ( vei = 0; vei < vertex_edge_count; vei++ )
{
ei = vertex.m_ei[vei];
if ( ei < 0 || ei >= m_E.Count() )
{
if ( text_log )
{
text_log->Print("brep.m_V[%d] vertex is not valid.\n",vertex_index);
text_log->PushIndent();
text_log->Print("vertex.m_ei[%d] = %d (should be >=0 and <%d).\n", vei, ei, m_E.Count());
text_log->PopIndent();
}
return false;
}
const ON_BrepEdge& edge = m_E[ei];
if ( ei != edge.m_edge_index )
{
if ( text_log )
{
text_log->Print("brep.m_V[%d] vertex is not valid.\n",vertex_index);
text_log->PushIndent();
text_log->Print("vertex.m_ei[%d] = %d is a deleted edge.\n", vei, ei);
text_log->PopIndent();
}
return false;
}
if ( edge.m_vi[0] != vertex_index && edge.m_vi[1] != vertex_index )
{
if ( text_log )
{
text_log->Print("brep.m_V[%d] vertex or brep.m_E[%d] edge is not valid.\n",vertex_index,ei);
text_log->PushIndent();
text_log->Print("vertex.m_ei[%d] = %d but brep.m_E[%d].m_vi[] = [%d,%d]. "
"At least one edge m_vi[] value should be %d.\n",
vei,ei,ei,edge.m_vi[0],edge.m_vi[1],vertex_index);
text_log->PopIndent();
}
return false;
}
for ( i = 0; i < vei; i++ )
{
if ( vertex.m_ei[i] == ei )
{
// edge should be closed
if ( edge.m_vi[0] != vertex_index || edge.m_vi[1] != vertex_index )
{
if ( text_log )
{
text_log->Print("brep.m_V[%d] vertex is not valid.\n",vertex_index);
text_log->PushIndent();
text_log->Print("vertex.m_ei[%d] and vertex.m_ei[%d] = %d but brep.m_E[%d].m_vi[0] = %d",
i,vei,ei,ei,edge.m_vi[0]);
text_log->Print("and ON_Brep.m_E[%d].m_vi[1] = %d (both m_vi[] values should be %d).\n",
ei,edge.m_vi[1],vertex_index);
text_log->PopIndent();
}
return false;
}
for (j = i+1; j < vei; j++ )
{
if ( vertex.m_ei[j] == ei )
{
if ( text_log )
{
text_log->Print("brep.m_V[%d] vertex is not valid.\n",vertex_index);
text_log->PushIndent();
text_log->Print("vertex.m_ei[%d,%d,%d] = %d. An open edge index should appear once\n",i,vei,j,ei);
text_log->Print("in vertex.m_ei[] and a closed edge index should appear twice.\n");
text_log->PopIndent();
}
return false;
}
}
break;
}
}
}
return true;
}
bool
ON_Brep::IsValidFaceTopology( int face_index, ON_TextLog* text_log ) const
{
if ( face_index < 0 || face_index >= m_F.Count() )
{
if ( text_log )
{
text_log->Print("brep face_index = %d (should be >=0 and <%d=brep.m_F.Count()).\n",
face_index, m_F.Count());
}
return false;
}
const ON_BrepFace& face = m_F[face_index];
if ( face.m_face_index != face_index )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.m_face_index = %d (should be %d).\n",
face.m_face_index, face_index );
text_log->PopIndent();
}
return false;
}
if ( face.m_brep != this )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.m_brep does not point to parent brep.\n");
text_log->PopIndent();
}
return false;
}
const int face_loop_count = face.m_li.Count();
if ( face_loop_count <= 0 )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.m_li.Count() <= 0 (should be >= 1)\n");
text_log->PopIndent();
}
return false;
}
int i, fli, li;
for ( fli = 0; fli < face_loop_count; fli++ )
{
li = face.m_li[fli];
for ( i = 0; i < fli; i++ )
{
if ( face.m_li[i] == li )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.m_li[%d]=face.m_li[%d]=%d (a loop index should appear once in face.m_li[])\n",
fli,i,li);
text_log->PopIndent();
}
return false;
}
}
if ( !IsValidLoop( li, text_log ) )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("brep.m_L[face.m_li[%d]=%d] is not valid.\n",fli,li);
text_log->PopIndent();
}
return false;
}
const ON_BrepLoop& loop = m_L[li];
if ( loop.m_loop_index != li )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.m_li[%d]=%d is a deleted loop\n",
fli,li);
text_log->PopIndent();
}
return false;
}
if ( loop.m_fi != face_index )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.m_li[%d]=%d but brep.m_L[%d].m_fi=%d (m_fi should be %d)\n",
fli,li,li,loop.m_fi,face_index);
text_log->PopIndent();
}
return false;
}
if ( fli == 0 ) {
if ( loop.m_type != ON_BrepLoop::outer )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("brep.m_L[face.m_li[0]=%d].m_type is not outer.\n",li);
text_log->PopIndent();
}
return false;
}
}
else {
if ( loop.m_type != ON_BrepLoop::inner )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("brep.m_L[face.m_li[%d]=%d].m_type is not inner.\n",fli,li);
text_log->PopIndent();
}
return false;
}
}
}
const int si = face.m_si;
if ( si < 0 || si >= m_S.Count() )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.m_si=%d (should be >=0 and <%d=m_S.Count())\n",
face.m_si,m_S.Count());
text_log->PopIndent();
}
return false;
}
if ( 0 == m_S[si] )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("brep.m_S[face.m_si=%d] is nullptr\n",face.m_si);
text_log->PopIndent();
}
return false;
}
if ( 0 == face.ProxySurface() )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.ProxySurface() is nullptr\n");
text_log->PopIndent();
}
return false;
}
if ( m_S[si] != face.ProxySurface() )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("brep.m_S[face.m_si=%d] != face.ProxySurface().\n",si);
text_log->PopIndent();
}
return false;
}
if ( face.ProxySurfaceIsTransposed() )
{
if ( text_log )
{
text_log->Print("brep.m_F[%d] face is not valid.\n",face_index);
text_log->PushIndent();
text_log->Print("face.ProxySurfaceIsTransposed() is true.\n");
text_log->PopIndent();
}
return false;
}
return true;
}
bool
ON_Brep::IsValidEdgeTopology( int edge_index, ON_TextLog* text_log ) const
{
if ( edge_index < 0 || edge_index >= m_E.Count() )
{
if ( text_log )
text_log->Print("brep edge_index = %d (should be >=0 and <%d=brep.m_E.Count() ).\n",
edge_index, m_E.Count());
return false;
}
const ON_BrepEdge& edge = m_E[edge_index];
if ( edge.m_edge_index != edge_index )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_edge_index = %d (should be %d).\n",
edge.m_edge_index, edge_index );
text_log->PopIndent();
}
return false;
}
if ( edge.m_brep != this )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_brep does not point to parent brep\n");
text_log->PopIndent();
}
return false;
}
if ( !edge.IsValid(text_log) )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge is not a valid.\n");
text_log->PopIndent();
}
return false;
}
// This checks to make sure that m_C3[] and the edge's proxy information is valid.
// This isn't exactly "topology", but if this stuff isn't set right, then the
// "geometry" checks might crash.
const int c3i = edge.m_c3i;
if ( c3i < 0 || c3i >= m_C3.Count() )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_c3i = %d (should be >=0 and <%d=m_C3.Count()\n",
edge.m_c3i,m_C3.Count() );
text_log->PopIndent();
}
return false;
}
if ( 0 == m_C3[c3i] )
{
if ( text_log )
text_log->Print("ON_Brep.m_E[%d].m_c3i = %d, but m_C3[%d] is nullptr.\n",edge_index,c3i,c3i);
return false;
}
if ( 0 == edge.ProxyCurve() )
{
if ( text_log )
text_log->Print("brep.m_E[%d].m_c3i = %d, but edge.ProxyCurve() is nullptr.\n",edge_index,c3i);
return false;
}
if ( m_C3[c3i] != edge.ProxyCurve() )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("m_E[%d].m_c3i=%d, m_C3[%d] != m_E[%d].ProxyCurve()\n",edge_index,c3i,c3i,edge_index);
text_log->PopIndent();
}
return false;
}
ON_Interval proxy_sub_dom = edge.ProxyCurveDomain();
if ( !proxy_sub_dom.IsIncreasing() )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("m_E[%d].ProxyCurveDomain() = (%g,%g) is not increasing\n",edge_index,proxy_sub_dom[0],proxy_sub_dom[1]);
text_log->PopIndent();
}
return false;
}
ON_Interval c3_dom = m_C3[c3i]->Domain();
if ( !c3_dom.Includes(proxy_sub_dom) )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("m_C3[%d].Domain() = (%g,%g) does not inlclude m_E[%d].ProxyCurveDomain() = (%g,%g) is not increasing\n",
c3i,c3_dom[0],c3_dom[1],edge_index,proxy_sub_dom[0],proxy_sub_dom[1]);
text_log->PopIndent();
}
return false;
}
ON_Interval edge_dom = edge.Domain();
if ( !edge_dom.IsIncreasing() )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] trim is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("m_E[%d].Domain() = (%g,%g) is not increasing\n",edge_index,edge_dom[0],edge_dom[1]);
text_log->PopIndent();
}
return false;
}
const int vi0 = edge.m_vi[0];
const int vi1 = edge.m_vi[1];
if ( vi0 < 0 || vi0 >= m_V.Count() )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_vi[0]=%d (should be >=0 and <%d=m_V.Count()\n",
vi0, m_V.Count() );
text_log->PopIndent();
}
return false;
}
if ( vi1 < 0 || vi1 >= m_V.Count() )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_vi[1]=%d (should be >=0 and <%d=m_V.Count()\n",
vi1, m_V.Count() );
text_log->PopIndent();
}
return false;
}
int evi;
for ( evi = 0; evi < 2; evi++ )
{
const ON_BrepVertex& vertex = m_V[edge.m_vi[evi]];
if ( edge.m_vi[evi] != vertex.m_vertex_index )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_vi[%d]=%d is a deleted vertex\n",
evi,edge.m_vi[evi] );
text_log->PopIndent();
}
return false;
}
const int vertex_edge_count = vertex.m_ei.Count();
bool bFoundIt = false;
int vei;
for ( vei = 0; vei < vertex_edge_count && !bFoundIt; vei++ )
{
bFoundIt = (vertex.m_ei[vei] == edge_index);
}
if ( !bFoundIt )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_vi[%d]=%d but edge is not referenced in m_V[%d].m_ei[]\n",
evi,edge.m_vi[evi],edge.m_vi[evi] );
text_log->PopIndent();
}
return false;
}
}
const int edge_trim_count = edge.m_ti.Count();
if ( edge_trim_count < 0 )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_ti.Count() < 0\n");
text_log->PopIndent();
}
return false;
}
int i, eti, ti;
for (eti = 0; eti < edge_trim_count; eti++ )
{
ti = edge.m_ti[eti];
if ( ti < 0 || ti >= m_T.Count() )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_ti[%d]=%d (should be >=0 and <%d=m_T.Count())\n",eti,ti);
text_log->PopIndent();
}
return false;
}
if ( m_T[ti].m_trim_index != ti )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_ti[%d]=%d is a deleted trim\n",eti,ti);
text_log->PopIndent();
}
return false;
}
for ( i = 0; i < eti; i++ )
{
if ( edge.m_ti[i] == ti )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_ti[%d]=edge.m_ti[%d]=%d (a trim should be referenced once).\n",i,eti,ti);
text_log->PopIndent();
}
return false;
}
}
const ON_BrepTrim& trim = m_T[ti];
if ( trim.m_ei != edge_index )
{
if ( text_log )
{
text_log->Print("brep.m_E[%d] edge is not valid.\n",edge_index);
text_log->PushIndent();
text_log->Print("edge.m_ti[%d]=%d but brep.m_T[%d].m_ei=%d\n",eti,ti,ti,trim.m_ei);
text_log->PopIndent();
}
return false;
}
}
return true;
}
bool
ON_Brep::IsValidLoopTopology( int loop_index, ON_TextLog* text_log ) const
{
int lti, ti;
if ( loop_index < 0 || loop_index >= m_L.Count() )
{
if ( text_log )
text_log->Print("brep loop_index = %d (should be >=0 and <%d=brep.m_L.Count() ).\n",
loop_index, m_L.Count());
return false;
}
const ON_BrepLoop& loop = m_L[loop_index];
if ( loop.m_loop_index != loop_index )
{
if ( text_log )
{
text_log->Print("brep.m_L[%d] loop is not valid.\n",loop_index);
text_log->PushIndent();
text_log->Print("loop.m_loop_index = %d (should be %d).\n",
loop.m_loop_index, loop_index );
text_log->PopIndent();
}
return false;
}
if ( loop.m_brep != this )
{
if ( text_log )
{
text_log->Print("brep.m_L[%d] loop is not valid.\n",loop_index);
text_log->PushIndent();
text_log->Print("loop.m_brep does not point to parent brep\n");
text_log->PopIndent();
}
return false;
}
if ( loop.m_fi < 0 || loop.m_fi >= m_F.Count() )
{
if ( text_log )
text_log->Print("ON_Brep.m_L[%d].m_fi = %d is not invalid.\n",loop_index,loop.m_fi);
return false;
}
if ( m_F[loop.m_fi].m_face_index != loop.m_fi )
{
if ( text_log )
text_log->Print("ON_Brep.m_L[%d].m_fi = %d is a deleted face.\n",loop_index,loop.m_fi);
return false;
}
if ( loop.m_ti.Count() < 1 )
{
if ( text_log )
text_log->Print("ON_Brep.m_L[%d].m_ti.Count() = %d (should be > 0 )\n",loop_index,loop.m_ti.Count());
return false;
}
for ( lti = 0; lti < loop.m_ti.Count(); lti++ )
{
ti = loop.m_ti[lti];
if ( ti < 0 || ti >= m_T.Count() )
{
if ( text_log )
text_log->Print("ON_Brep.m_L[%d].m_ti[%d] = %d is not invalid.\n",loop_index,lti,ti);
return false;
}
const ON_BrepTrim& trim = m_T[ti];
if ( trim.m_trim_index != ti )
{
if ( text_log )
text_log->Print("ON_Brep.m_L[%d].m_ti[%d] = %d is a deleted trim.\n",loop_index,lti,ti);
return false;
}
if ( trim.m_li != loop_index )
{
if ( text_log )
{
text_log->Print("brep loop m_L[%d] or trim m_T[%d] is not valid.\n",loop_index,ti);
text_log->PushIndent();
text_log->Print("loop.m_ti[%d] = %d != %d =trim.m_li\n",lti,ti,trim.m_li);
text_log->PopIndent();
}
return false;
}
}
int first_trim_ti = -4;
int first_trim_vi0 = -3;
int prev_trim_vi1 = -2;
int prev_trim_ti=-9;
for ( lti = 0; lti < loop.m_ti.Count(); lti++ )
{
const ON_BrepTrim& trim = m_T[loop.m_ti[lti]];
if ( 0 == lti )
{
first_trim_ti = loop.m_ti[lti];
first_trim_vi0 = trim.m_vi[0];
}
else if ( prev_trim_vi1 != trim.m_vi[0] )
{
// 23 May 2003 Dale Lear
// Added this test to make sure adjacent trims
// in a loop shared vertices.
if ( text_log )
{
text_log->Print("brep loop m_L[%d] is not valid.\n",loop_index);
text_log->PushIndent();
text_log->Print("m_T[loop.m_ti[%d]=%d].m_vi[1] = %d != m_T[loop.m_ti[%d]=%d].m_vi[0]=%d.\n",
lti-1,prev_trim_ti,prev_trim_vi1,lti,loop.m_ti[lti],trim.m_vi[0]);
text_log->PopIndent();
}
return false;
}
prev_trim_ti = loop.m_ti[lti];
prev_trim_vi1 = trim.m_vi[1];
}
if ( first_trim_ti >= 0 && first_trim_vi0 != prev_trim_vi1 )
{
// 23 May 2003 Dale Lear
// Added this test to make sure adjacent trims
// in a loop shared vertices.
if ( text_log )
{
text_log->Print("brep loop m_L[%d] is not valid.\n",loop_index);
text_log->PushIndent();
text_log->Print("m_T[loop.m_ti[%d]=%d].m_vi[1] = %d != m_T[loop.m_ti[0]=%d].m_vi[0]=%d.\n",
loop.m_ti.Count()-1,prev_trim_ti,prev_trim_vi1,first_trim_ti,first_trim_vi0);
text_log->PopIndent();
}
return false;
}
return true;
}
bool
ON_Brep::IsValidTrimTopology( int trim_index, ON_TextLog* text_log ) const
{
if ( trim_index < 0 || trim_index >= m_T.Count() )
{
if ( text_log )
text_log->Print("brep trim_index = %d (should be >=0 and <%d=brep.m_T.Count() ).\n",
trim_index, m_T.Count());
return false;
}
const ON_BrepTrim& trim = m_T[trim_index];
if ( trim.m_trim_index != trim_index )
{
if ( text_log )
{
text_log->Print("brep.m_T[%d] trim is not valid.\n",trim_index);
text_log->PushIndent();
text_log->Print("trim.m_trim_index = %d (should be %d).\n",
trim.m_trim_index, trim_index );
text_log->PopIndent();
}
return false;
}
if ( trim.m_brep != this )
{
if ( text_log )
{
text_log->Print("brep.m_T[%d] trim is not valid.\n",trim_index);
text_log->PushIndent();
text_log->Print("trim.m_brep does not point to parent brep\n");
text_log->PopIndent();
}
return false;
}
if ( trim.m_vi[0] < 0 || trim.m_vi[0] >= m_V.Count() )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_vi[0] = %d is not invalid.\n",trim_index,trim.m_vi[0]);
return false;
}
if ( trim.m_vi[1] < 0 || trim.m_vi[1] >= m_V.Count() )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_vi[1] = %d is not invalid.\n",trim_index,trim.m_vi[1]);
return false;
}
if ( m_V[trim.m_vi[0]].m_vertex_index != trim.m_vi[0] )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_vi[0] is deleted.\n",trim_index);
return false;
}
if ( m_V[trim.m_vi[1]].m_vertex_index != trim.m_vi[1] )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_vi[1] is deleted.\n",trim_index);
return false;
}
if ( trim.m_c2i < 0 || trim.m_c2i >= m_C2.Count() )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_c2i = %d is not valid.\n",trim_index,trim.m_c2i);
return false;
}
if ( 0 == m_C2[trim.m_c2i] )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_c2i = %d, but m_C2[%d] is nullptr.\n",trim_index,trim.m_c2i,trim.m_c2i);
return false;
}
if ( 0 == trim.ProxyCurve() )
{
if ( text_log )
text_log->Print("brep.m_T[%d].m_c2i = %d, but trim.ProxyCurve() is nullptr.\n",trim_index,trim.m_c2i);
return false;
}
if ( m_C2[trim.m_c2i] != trim.ProxyCurve() )
{
if ( text_log )
{
text_log->Print("brep.m_T[%d] trim is not valid.\n",trim_index);
text_log->PushIndent();
text_log->Print("m_T[%d].m_c2i=%d, m_C2[%d] != m_T[%d].ProxyCurve()\n",
trim_index, trim.m_c2i, trim.m_c2i, trim_index);
text_log->PopIndent();
}
return false;
}
ON_Interval proxy_sub_dom = trim.ProxyCurveDomain();
if ( !proxy_sub_dom.IsIncreasing() )
{
if ( text_log )
{
text_log->Print("brep.m_T[%d] trim is not valid.\n",trim_index);
text_log->PushIndent();
text_log->Print("m_T[%d].ProxyCurveDomain() = (%g,%g) is not increasing\n",trim_index,proxy_sub_dom[0],proxy_sub_dom[1]);
text_log->PopIndent();
}
return false;
}
ON_Interval c2_dom = m_C2[trim.m_c2i]->Domain();
if ( !c2_dom.Includes(proxy_sub_dom) )
{
if ( text_log )
{
text_log->Print("brep.m_T[%d] trim is not valid.\n",trim_index);
text_log->PushIndent();
text_log->Print("m_C2[%d].Domain() = (%g,%g) does not include m_T[%d].ProxyCurveDomain() = (%g,%g) is not increasing\n",
trim.m_c2i,c2_dom[0],c2_dom[1],
trim_index,proxy_sub_dom[0],proxy_sub_dom[1]);
text_log->PopIndent();
}
return false;
}
ON_Interval trim_dom = trim.Domain();
if ( !trim_dom.IsIncreasing() )
{
if ( text_log )
{
text_log->Print("brep.m_T[%d] trim is not valid.\n",trim_index);
text_log->PushIndent();
text_log->Print("m_T[%d].Domain() = (%g,%g) is not increasing\n",trim_index,trim_dom[0],trim_dom[1]);
text_log->PopIndent();
}
return false;
}
if ( trim.m_li < 0 || trim.m_li >= m_L.Count() )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_li = %d is not valid.\n",trim_index,trim.m_li);
return false;
}
const ON_BrepLoop& loop = m_L[trim.m_li];
if ( loop.m_loop_index != trim.m_li )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_li = %d is a deleted loop.\n",trim_index,trim.m_li);
return false;
}
bool bFoundTrim = false;
int lti, loop_trim_count = loop.m_ti.Count();
for ( lti = 0; lti < loop_trim_count && !bFoundTrim; lti++ )
{
if ( loop.m_ti[lti] == trim_index )
{
bFoundTrim = true;
break;
}
}
if ( !bFoundTrim )
{
if ( text_log )
{
text_log->Print("brep.m_T[%d] trim or brep.m_L[%d] loop is not valid.\n",trim_index,trim.m_li);
text_log->PushIndent();
text_log->Print("trim.m_li = %d but loop.m_ti[] does not contain %d (should appear once in).\n",
trim.m_li,trim_index);
text_log->PopIndent();
}
return false;
}
if ( trim.m_type == ON_BrepTrim::singular )
{
// trim has no 3d edge
if ( trim.m_ei != -1 )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_type = singular, but m_ei = %d (should be -1).\n",trim_index,trim.m_ei);
return false;
}
if ( trim.m_bRev3d )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_type = singular, but m_bRev3d = %d (should be 0).\n",trim_index,trim.m_bRev3d);
return false;
}
if ( trim.m_vi[0] != trim.m_vi[1] )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_type = singular, but m_vi = (%d,%d) (should be same vertex index).\n",
trim_index,trim.m_vi[0],trim.m_vi[1]);
return false;
}
}
else
{
// trim should be connected to a 3d edge
if ( trim.m_ei < 0 || trim.m_ei >= m_E.Count() )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_ei = %d is not invalid.\n",trim_index,trim.m_ei);
return false;
}
const ON_BrepEdge& edge = m_E[trim.m_ei];
if ( edge.m_edge_index != trim.m_ei )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_ei is deleted.\n",trim_index);
return false;
}
const int evi0 = trim.m_bRev3d ? 1 : 0;
const int evi1 = trim.m_bRev3d ? 0 : 1;
if ( trim.m_vi[0] != edge.m_vi[evi0] )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_bRev3d = %d, but m_vi[0] != m_E[m_ei].m_vi[%d].\n",trim_index,trim.m_bRev3d,evi0);
return false;
}
if ( trim.m_vi[1] != edge.m_vi[evi1] )
{
if ( text_log )
text_log->Print("ON_Brep.m_T[%d].m_bRev3d = %d, but m_vi[0] != m_E[m_ei].m_vi[%d].\n",trim_index,trim.m_bRev3d,evi1);
return false;
}
}
return true;
}
bool
ON_Brep::IsValidTopology( ON_TextLog* text_log ) const
{
const int curve2d_count = m_C2.Count();
const int curve3d_count = m_C3.Count();
const int surface_count = m_S.Count();
const int vertex_count = m_V.Count();
const int edge_count = m_E.Count();
const int trim_count = m_T.Count();
const int loop_count = m_L.Count();
const int face_count = m_F.Count();
int vi, ei, fi, ti, li;
if ( 0 == face_count && 0 == edge_count && 0 == vertex_count )
{
if ( text_log )
text_log->Print( "ON_Brep has no faces, edges, or vertices\n");
return false;
}
if ( 0 != face_count )
{
if ( 0 == edge_count )
{
if ( text_log )