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53539: 0D Element

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1) Extract SMESHUtils/SMESH_ControlPnt.* from Hexotic
2) Minor doc changes
3) fix  53539: 0D Element (SMDS_MeshCell.hxx, SMESHGUI_AddMeshElementDlg.cxx)
4) Regressions
- bugs_06/G9 ( SMESH_DumpPython.cxx, SMESH_PythonDump.hxx )
- bugs_13/N8 ( StdMeshers_Regular_1D.cxx )
This commit is contained in:
eap 2016-08-24 17:04:22 +03:00
parent 7c69e00bac
commit 83b0c984cc
24 changed files with 597 additions and 142 deletions
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6
doc/salome/examples/modifying_meshes_ex01.py
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@ -1,16 +1,10 @@
# Add Node
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New(salome.myStudy)
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New(salome.myStudy)
import salome_notebook
mesh = smesh.Mesh()

6
doc/salome/examples/modifying_meshes_ex02.py
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@ -1,16 +1,10 @@
# Add 0D Element
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New(salome.myStudy)
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New(salome.myStudy)
import salome_notebook
mesh = smesh.Mesh()

3
doc/salome/examples/modifying_meshes_ex03.py
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@ -3,14 +3,13 @@
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New(salome.myStudy)
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New(salome.myStudy)
import salome_notebook
# create a geometry

4
doc/salome/examples/modifying_meshes_ex09.py
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@ -4,14 +4,10 @@ import math
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New(salome.myStudy)
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New(salome.myStudy)
import salome_notebook
# create an empty mesh structure

34
doc/salome/examples/modifying_meshes_ex10.py
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@ -3,14 +3,9 @@
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New(salome.myStudy)
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New(salome.myStudy)
import salome_notebook
import math
@ -50,18 +45,19 @@ for i in range(5):
pass
# Create a polyhedral volume (12-hedron with pentagonal faces)
mesh.GetMeshEditor().AddPolyhedralVolume([dd[0], dd[1], dd[2], dd[3], dd[4], # top
dd[0], cc[0], bb[1], cc[1], dd[1], # -
dd[1], cc[1], bb[2], cc[2], dd[2], # -
dd[2], cc[2], bb[3], cc[3], dd[3], # - below top
dd[3], cc[3], bb[4], cc[4], dd[4], # -
dd[4], cc[4], bb[0], cc[0], dd[0], # -
aa[4], bb[4], cc[4], bb[0], aa[0], # .
aa[3], bb[3], cc[3], bb[4], aa[4], # .
aa[2], bb[2], cc[2], bb[3], aa[3], # . above bottom
aa[1], bb[1], cc[1], bb[2], aa[2], # .
aa[0], bb[0], cc[0], bb[1], aa[1], # .
aa[0], aa[1], aa[2], aa[3], aa[4]], # bottom
[5,5,5,5,5,5,5,5,5,5,5,5])
mesh.AddPolyhedralVolume([dd[0], dd[1], dd[2], dd[3], dd[4], # top
dd[0], cc[0], bb[1], cc[1], dd[1], # -
dd[1], cc[1], bb[2], cc[2], dd[2], # -
dd[2], cc[2], bb[3], cc[3], dd[3], # - below top
dd[3], cc[3], bb[4], cc[4], dd[4], # -
dd[4], cc[4], bb[0], cc[0], dd[0], # -
aa[4], bb[4], cc[4], bb[0], aa[0], # .
aa[3], bb[3], cc[3], bb[4], aa[4], # .
aa[2], bb[2], cc[2], bb[3], aa[3], # . above bottom
aa[1], bb[1], cc[1], bb[2], aa[2], # .
aa[0], bb[0], cc[0], bb[1], aa[1], # .
aa[0], aa[1], aa[2], aa[3], aa[4]], # bottom
[5,5,5,5,5,5,5,5,5,5,5,5])
salome.sg.updateObjBrowser(1)
if salome.sg.hasDesktop():
salome.sg.updateObjBrowser(1)

7
doc/salome/examples/modifying_meshes_ex15.py
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@ -3,14 +3,13 @@
import salome
salome.salome_init()
import GEOM
from salome.geom import geomBuilder
geompy = geomBuilder.New(salome.myStudy)
import SMESH, SALOMEDS
from salome.smesh import smeshBuilder
smesh = smeshBuilder.New(salome.myStudy)
import salome_notebook
box = geompy.MakeBoxDXDYDZ(200, 200, 200)
@ -20,7 +19,7 @@ mesh.Segment().AutomaticLength(0.1)
mesh.Quadrangle()
mesh.Compute()
# find node at (0,0,0)
# find node at (0,0,0) which is located on a geom vertex
node000 = None
for vId in geompy.SubShapeAllIDs( box, geompy.ShapeType["VERTEX"]):
if node000: break
@ -36,7 +35,7 @@ for vId in geompy.SubShapeAllIDs( box, geompy.ShapeType["VERTEX"]):
if not node000:
raise "node000 not found"
# find node000 using the tested function
# find node000 using a dedicated function
n = mesh.FindNodeClosestTo( -1,-1,-1 )
if not n == node000:
raise "FindNodeClosestTo() returns " + str( n ) + " != " + str( node000 )

3
doc/salome/gui/SMESH/input/display_mode.doc
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@ -2,7 +2,8 @@
\page display_mode_page Display Mode
\n By default your objects are represented as set in \b Preferences.
\n By default your objects are represented as set in
\ref mesh_preferences_page "Preferences".
\n However, right-clicking on the mesh in the <b>Object Browser</b>,
and selecting <b>Display Mode</b>, you can display your mesh as:

15
doc/salome/gui/SMESH/input/importing_exporting_meshes.doc
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@ -41,17 +41,20 @@ group as a whole mesh.
If you try to export a group, the warning will be shown:
\image html meshexportgroupwarning.png
<ul>
<li><b>Don't show this warning anymore</b> check-box specifies show or
not the warning. If checked, the warning will not be shown anymore in
the similar situation </li>
<li><b>Don't show this warning anymore</b> check-box allows to
switch off the warning. You can re-activate the warning in
\ref group_export_warning_pref "Preferences".</li>
</ul>
There are additional parameters available at export to MED and SAUV format files.
<ul>
<li><b>Automatically create groups</b> check-box specifies whether to
<li>
\anchor export_auto_groups
<b>Automatically create groups</b> check-box specifies whether to
create groups of all mesh entities of available dimensions or
not. If checked, the created groups have names like "Group_On_All_Nodes",
"Group_On_All_Faces", etc.</li>
not. The created groups have names like "Group_On_All_Nodes",
"Group_On_All_Faces", etc. A default state of this check-box can be
set in \ref export_auto_groups_pref "Preferences". </li>
<li><b>Automatically define space dimension</b> check-box specifies
whether to define space dimension for export by mesh configuration
or not. Usually the mesh is exported as a mesh in 3D space, just as

52
doc/salome/gui/SMESH/input/mesh_preferences.doc
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@ -10,15 +10,15 @@ or in later sessions with this module according to the preferences.
\image html pref21.png
- <b>Automatic Update</b>
- If you toggle <b>Automatic Update</b> checkbox, the model in your
viewer will be automatically updated when you make changes in it, depending on
- <b>Automatic Update</b> - if activated, the mesh in your
viewer will be automatically updated after it's computation, depending on
values of additional preferences specified below.
- <b>Size limit (elements)</b> - allows specifying the maximum
number of elements in the resulting mesh for which the automatic updating
of the presentation is performed. This option affects only
<b>Compute</b> operation. Zero value means "no limit". Default value
is 500 000 mesh elements.
- <b>Incremental limit check</b> - when this control is switched on,
\ref compute_anchor "Compute" operation. Zero value means "no
limit". Default value is 500 000 mesh elements.
- <b>Incremental limit check</b> - if activated,
the mesh size limit check is not applied to the total number of
elements in the resulting mesh, it is applied iteratively to each entity type
in the following order: 0D elements, edges, faces, volumes, balls.
@ -28,32 +28,40 @@ or in later sessions with this module according to the preferences.
this type are shown, otherwise the user is warned that some entities are not shown.
- <b>Quality Controls</b>
- If you toggle <b>Display entity</b>, both faces and edges of an
object will be displayed in the viewer by default.
- If you toggle <b>Use precision</b> checkbox, you can display numbers in
<b>Quality Control</b> diagrams at the necessary level of precision.
- <b>Number of digits after point</b> - defines precision for
<b>Quality Controls</b>. By default, numbers in <b>Quality Control</b>
diagrams are presented as integers.
- <b>Double nodes tolerance</b> defines the maximal distance between two
mesh nodes, at which they are considered coincident by <b>Double nodes</b>
quality control.
- <b>Display entity</b> - if activated, only currently
\ref quality_page "controlled" entities are displayed in the
viewer and other entities are temporarily hidden. For example if you
activate \ref length_page "Length" quality control, which controls
the length of mesh segments, then only mesh segments are
displayed and faces and volumes are hidden.
- <b>Use precision</b> - if activated, all quality controls
will be computed at precision defined by <b>Number of digits after
point</b> - as integers by default.
- <b>Double nodes tolerance</b> - defines the maximal distance between two
mesh nodes, at which they are considered coincident by
\ref double_nodes_control_page "Double nodes" quality control.
- <b>Display mode</b>
- <b>Default display mode</b> - allows to set Wireframe, Shading, Nodes or Shrink
presentation mode as default.
\ref display_mode_page "presentation mode" as default.
\anchor quadratic_2d_mode_pref
- <b>Representation of the 2D quadratic elements</b>
- <b>Default mode of the 2D quadratic elements</b> combo-box - allows
to select lines or arcs for representation of quadratic elements as default.
- <b>Default mode of the 2D quadratic elements</b> - allows to
select either \a Lines or \a Arcs as a default
\ref quadratic_2d_mode "representation" of 1D and 2D
\ref adding_quadratic_elements_page "quadratic elements".
- <b>Maximum Angle</b> - maximum deviation angle used by the
application to build arcs.
- <b>Mesh export</b>
- If you toggle <b>Automatically create groups for MED export</b> check-box,
this operation will be carried out automatically.
- <b>Show warning when exporting group</b> check-box - allows defining the
behavior of the warning when exporting a group.
\anchor export_auto_groups_pref
- <b>Automatically create groups for MED export</b> - defines a
default state of a corresponding check-box in \ref export_auto_groups
"MED Export" dialog.
\anchor group_export_warning_pref
- <b>Show warning when exporting group</b> - if activated, a warning is
displayed when exporting a group.
- <b>Mesh computation</b>
- <b>Show a computation result notification</b> combo-box allows to

4
doc/salome/gui/SMESH/input/tui_modifying_meshes.doc
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@ -75,10 +75,6 @@
<h3>Removing Orphan Nodes</h3>
\tui_script{modifying_meshes_ex13.py}
<br>
\section tui_renumbering_nodes_and_elements Renumbering Nodes and Elements
\tui_script{modifying_meshes_ex14.py}
<br>
\section tui_moving_nodes Moving Nodes
\tui_script{modifying_meshes_ex15.py}

8
doc/salome/gui/SMESH/input/viewing_meshes_overview.doc
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@ -36,9 +36,13 @@ viewer.</li>
<li>\subpage display_mode_page "Display Mode" - allows to select between
Wireframe, Shading and Nodes presentation.</li>
<li>\subpage display_entity_page "Display Entity" - allows to display
entities by types (Faces, Edges, Volumes etc.).</li>
entities by types (Faces, Edges, Volumes etc.).</li>
\anchor quadratic_2d_mode
<li><b>2D Quadratic</b> - allows to select between the representation
of quadratic edges as broken <b>lines</b> or as <b>arcs</b></li>
of quadratic edges as broken \b lines or as \b arcs. A default
representation can be set in \ref quadratic_2d_mode_pref "Preferences".
Arc representation applies to 1D and 2D elements only.
</li>
<li><b>Orientation of faces</b> - shows vectors of orientation of
faces of the selected mesh. The orientation vector is shown for each 2D mesh element
and for each free face of a 3D mesh element. the vector direction is calculated by

29
src/DriverGMF/DriverGMF_Write.cxx
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@ -34,6 +34,8 @@
#include "utilities.h"
using SMESHUtils::ControlPnt;
extern "C"
{
#include "libmesh5.h"
@ -80,29 +82,6 @@ extern "C"
}}}}
Control_Pnt::Control_Pnt(): gp_Pnt()
{
size=0;
}
Control_Pnt::Control_Pnt( const gp_Pnt& aPnt,
double theSize): gp_Pnt( aPnt )
{
size=theSize;
}
Control_Pnt::Control_Pnt(double theX,
double theY,
double theZ): gp_Pnt(theX, theY, theZ)
{
size=0;
}
Control_Pnt::Control_Pnt(double theX,
double theY,
double theZ,
double theSize): gp_Pnt(theX, theY, theZ)
{
size=theSize;
}
DriverGMF_Write::DriverGMF_Write():
Driver_SMESHDS_Mesh(), _exportRequiredGroups( true )
{
@ -365,7 +344,7 @@ Driver_Mesh::Status DriverGMF_Write::Perform()
return DRS_OK;
}
Driver_Mesh::Status DriverGMF_Write::PerformSizeMap( const std::vector<Control_Pnt>& points )
Driver_Mesh::Status DriverGMF_Write::PerformSizeMap( const std::vector<ControlPnt>& points )
{
// const int dim = 3, version = sizeof(long) == 4 ? 2 : 3;
const int dim = 3, version = 2; // Version 3 not supported by mg-hexa
@ -383,7 +362,7 @@ Driver_Mesh::Status DriverGMF_Write::PerformSizeMap( const std::vector<Control_P
GmfSetKwd(solFileID, GmfSolAtVertices, pointsNumber, 1, TypTab);
// Read the control points information from the vector and write it into the files
std::vector<Control_Pnt>::const_iterator points_it;
std::vector<ControlPnt>::const_iterator points_it;
for (points_it = points.begin(); points_it != points.end(); points_it++ )
{
GmfSetLin( verticesFileID, GmfVertices, points_it->X(), points_it->Y(), points_it->Z(), 0 );

23
src/DriverGMF/DriverGMF_Write.hxx
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@ -32,26 +32,7 @@
#include "Driver_SMESHDS_Mesh.h"
#include "SMDSAbs_ElementType.hxx"
#include "SMDS_ElemIterator.hxx"
#include <gp_Pnt.hxx>
/*!
* \brief Class for storing control points for writing GMF size maps
*/
class MESHDriverGMF_EXPORT Control_Pnt : public gp_Pnt
{
public:
Control_Pnt();
Control_Pnt(const gp_Pnt& aPnt, double theSize);
Control_Pnt(double x, double y, double z);
Control_Pnt(double x, double y, double z, double size);
double Size() const { return size; };
void SetSize( double theSize ) { size = theSize; };
private:
double size;
};
#include "SMESH_ControlPnt.hxx"
/*!
* \brief Driver Writing a mesh into a GMF file.
@ -71,7 +52,7 @@ public:
virtual Status Perform();
// Size Maps
Status PerformSizeMap( const std::vector<Control_Pnt>& points );
Status PerformSizeMap( const std::vector<SMESHUtils::ControlPnt>& points );
void SetSizeMapPrefix( std::string prefix )
{
myVerticesFile = prefix + ".mesh";

4
src/SMDS/SMDS_MeshCell.hxx
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@ -53,7 +53,7 @@ public:
template< class VECT > // interlacedIDs[i] = smdsIDs[ indices[ i ]]
static void applyInterlace( const std::vector<int>& interlace, VECT & data)
{
if ( interlace.empty() ) return;
if ( interlace.size() < data.size() ) return;
VECT tmpData( data.size() );
for ( size_t i = 0; i < data.size(); ++i )
tmpData[i] = data[ interlace[i] ];
@ -62,7 +62,7 @@ public:
template< class VECT > // interlacedIDs[ indices[ i ]] = smdsIDs[i]
static void applyInterlaceRev( const std::vector<int>& interlace, VECT & data)
{
if ( interlace.empty() ) return;
if ( interlace.size() < data.size() ) return;
VECT tmpData( data.size() );
for ( size_t i = 0; i < data.size(); ++i )
tmpData[ interlace[i] ] = data[i];

2
src/SMESHGUI/SMESHGUI_AddMeshElementDlg.cxx
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@ -919,7 +919,7 @@ void SMESHGUI_AddMeshElementDlg::displaySimulation()
if (ReverseOrDulicate && ReverseOrDulicate->isChecked())
{
const std::vector<int>& i = SMDS_MeshCell::reverseSmdsOrder( myGeomType );
if ( i.empty() ) // polygon
if ( i.size() != anIds.size() ) // polygon
std::reverse( anIds.begin(), anIds.end() );
else
SMDS_MeshCell::applyInterlace( i, anIds );

2
src/SMESHUtils/CMakeLists.txt
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@ -65,6 +65,7 @@ SET(SMESHUtils_HEADERS
SMESH_TryCatch.hxx
SMESH_MeshAlgos.hxx
SMESH_MAT2d.hxx
SMESH_ControlPnt.hxx
)
# --- sources ---
@ -80,6 +81,7 @@ SET(SMESHUtils_SOURCES
SMESH_MeshAlgos.cxx
SMESH_MAT2d.cxx
SMESH_FreeBorders.cxx
SMESH_ControlPnt.cxx
)
# --- rules ---

414
src/SMESHUtils/SMESH_ControlPnt.cxx Normal file
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@ -0,0 +1,414 @@
// Copyright (C) 2007-2016 CEA/DEN, EDF R&D
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// Author : Lioka RAZAFINDRAZAKA (CEA)
#include "SMESH_ControlPnt.hxx"
#include <BRepBndLib.hxx>
#include <BRepMesh_IncrementalMesh.hxx>
#include <BRep_Tool.hxx>
#include <Bnd_Box.hxx>
#include <GCPnts_UniformAbscissa.hxx>
#include <GeomAdaptor_Curve.hxx>
#include <Geom_Curve.hxx>
#include <IntCurvesFace_Intersector.hxx>
#include <Poly_Array1OfTriangle.hxx>
#include <Poly_Triangle.hxx>
#include <Poly_Triangulation.hxx>
#include <Precision.hxx>
#include <TColgp_Array1OfPnt.hxx>
#include <TopExp_Explorer.hxx>
#include <TopLoc_Location.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopoDS_Solid.hxx>
#include <gp_Ax3.hxx>
#include <gp_Dir.hxx>
#include <gp_Lin.hxx>
#include <gp_Trsf.hxx>
#include <gp_Vec.hxx>
#include <set>
namespace SMESHUtils
{
// Some functions for surface sampling
void subdivideTriangle( const gp_Pnt& p1,
const gp_Pnt& p2,
const gp_Pnt& p3,
const double& theSize,
std::vector<ControlPnt>& thePoints );
std::vector<gp_Pnt> computePointsForSplitting( const gp_Pnt& p1,
const gp_Pnt& p2,
const gp_Pnt& p3 );
gp_Pnt tangencyPoint(const gp_Pnt& p1,
const gp_Pnt& p2,
const gp_Pnt& Center);
}
//================================================================================
/*!
* \brief Fills a vector of points from which a size map input file can be written
*/
//================================================================================
void SMESHUtils::createControlPoints( const TopoDS_Shape& theShape,
const double& theSize,
std::vector<ControlPnt>& thePoints )
{
if ( theShape.ShapeType() == TopAbs_VERTEX )
{
gp_Pnt aPnt = BRep_Tool::Pnt( TopoDS::Vertex(theShape) );
ControlPnt aControlPnt( aPnt, theSize );
thePoints.push_back( aControlPnt );
}
if ( theShape.ShapeType() == TopAbs_EDGE )
{
createPointsSampleFromEdge( TopoDS::Edge( theShape ), theSize, thePoints );
}
else if ( theShape.ShapeType() == TopAbs_WIRE )
{
TopExp_Explorer Ex;
for (Ex.Init(theShape,TopAbs_EDGE); Ex.More(); Ex.Next())
{
createPointsSampleFromEdge( TopoDS::Edge( Ex.Current() ), theSize, thePoints );
}
}
else if ( theShape.ShapeType() == TopAbs_FACE )
{
createPointsSampleFromFace( TopoDS::Face( theShape ), theSize, thePoints );
}
else if ( theShape.ShapeType() == TopAbs_SOLID )
{
createPointsSampleFromSolid( TopoDS::Solid( theShape ), theSize, thePoints );
}
else if ( theShape.ShapeType() == TopAbs_COMPOUND )
{
TopoDS_Iterator it( theShape );
for(; it.More(); it.Next())
{
createControlPoints( it.Value(), theSize, thePoints );
}
}
}
//================================================================================
/*!
* \brief Fills a vector of points with point samples approximately
* \brief spaced with a given size
*/
//================================================================================
void SMESHUtils::createPointsSampleFromEdge( const TopoDS_Edge& theEdge,
const double& theSize,
std::vector<ControlPnt>& thePoints )
{
double step = theSize;
double first, last;
Handle( Geom_Curve ) aCurve = BRep_Tool::Curve( theEdge, first, last );
GeomAdaptor_Curve C ( aCurve );
GCPnts_UniformAbscissa DiscretisationAlgo(C, step , first, last, Precision::Confusion());
int nbPoints = DiscretisationAlgo.NbPoints();
ControlPnt aPnt;
aPnt.SetSize(theSize);
for ( int i = 1; i <= nbPoints; i++ )
{
double param = DiscretisationAlgo.Parameter( i );
aCurve->D0( param, aPnt );
thePoints.push_back( aPnt );
}
}
//================================================================================
/*!
* \brief Fills a vector of points with point samples approximately
* \brief spaced with a given size
*/
//================================================================================
void SMESHUtils::createPointsSampleFromFace( const TopoDS_Face& theFace,
const double& theSize,
std::vector<ControlPnt>& thePoints )
{
BRepMesh_IncrementalMesh M(theFace, 0.01, Standard_True);
TopLoc_Location aLocation;
// Triangulate the face
Handle(Poly_Triangulation) aTri = BRep_Tool::Triangulation (theFace, aLocation);
// Get the transformation associated to the face location
gp_Trsf aTrsf = aLocation.Transformation();
// Get triangles
int nbTriangles = aTri->NbTriangles();
Poly_Array1OfTriangle triangles(1,nbTriangles);
triangles=aTri->Triangles();
// GetNodes
int nbNodes = aTri->NbNodes();
TColgp_Array1OfPnt nodes(1,nbNodes);
nodes = aTri->Nodes();
// Iterate on triangles and subdivide them
for(int i=1; i<=nbTriangles; i++)
{
Poly_Triangle aTriangle = triangles.Value(i);
gp_Pnt p1 = nodes.Value(aTriangle.Value(1));
gp_Pnt p2 = nodes.Value(aTriangle.Value(2));
gp_Pnt p3 = nodes.Value(aTriangle.Value(3));
p1.Transform(aTrsf);
p2.Transform(aTrsf);
p3.Transform(aTrsf);
subdivideTriangle(p1, p2, p3, theSize, thePoints);
}
}
//================================================================================
/*!
* \brief Fills a vector of points with point samples approximately
* \brief spaced with a given size
*/
//================================================================================
void SMESHUtils::createPointsSampleFromSolid( const TopoDS_Solid& theSolid,
const double& theSize,
std::vector<ControlPnt>& thePoints )
{
// Compute the bounding box
double Xmin, Ymin, Zmin, Xmax, Ymax, Zmax;
Bnd_Box B;
BRepBndLib::Add(theSolid, B);
B.Get(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
// Create the points
double step = theSize;
for ( double x=Xmin; x-Xmax<Precision::Confusion(); x=x+step )
{
for ( double y=Ymin; y-Ymax<Precision::Confusion(); y=y+step )
{
// Step1 : generate the Zmin -> Zmax line
gp_Pnt startPnt(x, y, Zmin);
gp_Pnt endPnt(x, y, Zmax);
gp_Vec aVec(startPnt, endPnt);
gp_Lin aLine(startPnt, aVec);
double endParam = Zmax - Zmin;
// Step2 : for each face of theSolid:
std::set<double> intersections;
std::set<double>::iterator it = intersections.begin();
TopExp_Explorer Ex;
for (Ex.Init(theSolid,TopAbs_FACE); Ex.More(); Ex.Next())
{
// check if there is an intersection
IntCurvesFace_Intersector anIntersector(TopoDS::Face(Ex.Current()), Precision::Confusion());
anIntersector.Perform(aLine, 0, endParam);
// get the intersection's parameter and store it
int nbPoints = anIntersector.NbPnt();
for(int i = 0 ; i < nbPoints ; i++ )
{
it = intersections.insert( it, anIntersector.WParameter(i+1) );
}
}
// Step3 : go through the line chunk by chunk
if ( intersections.begin() != intersections.end() )
{
std::set<double>::iterator intersectionsIterator=intersections.begin();
double first = *intersectionsIterator;
intersectionsIterator++;
bool innerPoints = true;
for ( ; intersectionsIterator!=intersections.end() ; intersectionsIterator++ )
{
double second = *intersectionsIterator;
if ( innerPoints )
{
// If the last chunk was outside of the shape or this is the first chunk
// add the points in the range [first, second] to the points vector
double localStep = (second -first) / ceil( (second - first) / step );
for ( double z = Zmin + first; z < Zmin + second; z = z + localStep )
{
thePoints.push_back(ControlPnt( x, y, z, theSize ));
}
thePoints.push_back(ControlPnt( x, y, Zmin + second, theSize ));
}
first = second;
innerPoints = !innerPoints;
}
}
}
}
}
//================================================================================
/*!
* \brief Subdivides a triangle until it reaches a certain size (recursive function)
*/
//================================================================================
void SMESHUtils::subdivideTriangle( const gp_Pnt& p1,
const gp_Pnt& p2,
const gp_Pnt& p3,
const double& theSize,
std::vector<ControlPnt>& thePoints)
{
// Size threshold to stop subdividing
// This value ensures that two control points are distant no more than 2*theSize
// as shown below
//
// The greater distance D of the mass center M to each Edge is 1/3 * Median
// and Median < sqrt(3/4) * a where a is the greater side (by using Apollonius' thorem).
// So D < 1/3 * sqrt(3/4) * a and if a < sqrt(3) * S then D < S/2
// and the distance between two mass centers of two neighbouring triangles
// sharing an edge is < 2 * 1/2 * S = S
// If the traingles share a Vertex and no Edge the distance of the mass centers
// to the Vertices is 2*D < S so the mass centers are distant of less than 2*S
double threshold = sqrt( 3. ) * theSize;
if ( (p1.Distance(p2) > threshold ||
p2.Distance(p3) > threshold ||
p3.Distance(p1) > threshold))
{
std::vector<gp_Pnt> midPoints = computePointsForSplitting(p1, p2, p3);
subdivideTriangle( midPoints[0], midPoints[1], midPoints[2], theSize, thePoints );
subdivideTriangle( midPoints[0], p2, midPoints[1], theSize, thePoints );
subdivideTriangle( midPoints[2], midPoints[1], p3, theSize, thePoints );
subdivideTriangle( p1, midPoints[0], midPoints[2], theSize, thePoints );
}
else
{
double x = (p1.X() + p2.X() + p3.X()) / 3 ;
double y = (p1.Y() + p2.Y() + p3.Y()) / 3 ;
double z = (p1.Z() + p2.Z() + p3.Z()) / 3 ;
ControlPnt massCenter( x ,y ,z, theSize );
thePoints.push_back( massCenter );
}
}
//================================================================================
/*!
* \brief Returns the appropriate points for splitting a triangle
* \brief the tangency points of the incircle are used in order to have mostly
* \brief well-shaped sub-triangles
*/
//================================================================================
std::vector<gp_Pnt> SMESHUtils::computePointsForSplitting( const gp_Pnt& p1,
const gp_Pnt& p2,
const gp_Pnt& p3 )
{
std::vector<gp_Pnt> midPoints;
//Change coordinates
gp_Trsf Trsf_1; // Identity transformation
gp_Ax3 reference_system(gp::Origin(), gp::DZ(), gp::DX()); // OXY
gp_Vec Vx(p1, p3);
gp_Vec Vaux(p1, p2);
gp_Dir Dx(Vx);
gp_Dir Daux(Vaux);
gp_Dir Dz = Dx.Crossed(Daux);
gp_Ax3 current_system(p1, Dz, Dx);
Trsf_1.SetTransformation( reference_system, current_system );
gp_Pnt A = p1.Transformed(Trsf_1);
gp_Pnt B = p2.Transformed(Trsf_1);
gp_Pnt C = p3.Transformed(Trsf_1);
double a = B.Distance(C) ;
double b = A.Distance(C) ;
double c = B.Distance(A) ;
// Incenter coordinates
// see http://mathworld.wolfram.com/Incenter.html
double Xi = ( b*B.X() + c*C.X() ) / ( a + b + c );
double Yi = ( b*B.Y() ) / ( a + b + c );
gp_Pnt Center(Xi, Yi, 0);
// Calculate the tangency points of the incircle
gp_Pnt T1 = tangencyPoint( A, B, Center);
gp_Pnt T2 = tangencyPoint( B, C, Center);
gp_Pnt T3 = tangencyPoint( C, A, Center);
gp_Pnt p1_2 = T1.Transformed(Trsf_1.Inverted());
gp_Pnt p2_3 = T2.Transformed(Trsf_1.Inverted());
gp_Pnt p3_1 = T3.Transformed(Trsf_1.Inverted());
midPoints.push_back(p1_2);
midPoints.push_back(p2_3);
midPoints.push_back(p3_1);
return midPoints;
}
//================================================================================
/*!
* \brief Computes the tangency points of the circle of center Center with
* \brief the straight line (p1 p2)
*/
//================================================================================
gp_Pnt SMESHUtils::tangencyPoint(const gp_Pnt& p1,
const gp_Pnt& p2,
const gp_Pnt& Center)
{
double Xt = 0;
double Yt = 0;
// The tangency point is the intersection of the straight line (p1 p2)
// and the straight line (Center T) which is orthogonal to (p1 p2)
if ( fabs(p1.X() - p2.X()) <= Precision::Confusion() )
{
Xt=p1.X(); // T is on (p1 p2)
Yt=Center.Y(); // (Center T) is orthogonal to (p1 p2)
}
else if ( fabs(p1.Y() - p2.Y()) <= Precision::Confusion() )
{
Yt=p1.Y(); // T is on (p1 p2)
Xt=Center.X(); // (Center T) is orthogonal to (p1 p2)
}
else
{
// First straight line coefficients (equation y=a*x+b)
double a = (p2.Y() - p1.Y()) / (p2.X() - p1.X()) ;
double b = p1.Y() - a*p1.X(); // p1 is on this straight line
// Second straight line coefficients (equation y=c*x+d)
double c = -1 / a; // The 2 lines are orthogonal
double d = Center.Y() - c*Center.X(); // Center is on this straight line
Xt = (d - b) / (a - c);
Yt = a*Xt + b;
}
return gp_Pnt( Xt, Yt, 0 );
}

76
src/SMESHUtils/SMESH_ControlPnt.hxx Normal file
View File

@ -0,0 +1,76 @@
// Copyright (C) 2007-2016 CEA/DEN, EDF R&D
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// Author : Lioka RAZAFINDRAZAKA (CEA)
#ifndef SMESH_CONTROLPNT_H
#define SMESH_CONTROLPNT_H
#include "SMESH_Utils.hxx"
#include <gp_Pnt.hxx>
class TopoDS_Shape;
class TopoDS_Edge ;
class TopoDS_Face ;
class TopoDS_Solid;
#include <vector>
namespace SMESHUtils
{
/*!
* \brief Control point: coordinates and element size at these coordinates
*/
struct SMESHUtils_EXPORT ControlPnt : public gp_Pnt
{
ControlPnt()
: gp_Pnt(), size(0) {}
ControlPnt( const gp_Pnt& aPnt, double theSize)
: gp_Pnt( aPnt ), size( theSize ) {}
ControlPnt(double theX,double theY,double theZ)
: gp_Pnt(theX, theY, theZ), size(0) {}
ControlPnt(double theX,double theY,double theZ, double theSize)
: gp_Pnt(theX, theY, theZ), size( theSize ) {}
double Size() const { return size; };
void SetSize( double theSize ) { size = theSize; };
double size;
};
// Functions to get sample point from shapes
void createControlPoints( const TopoDS_Shape& theShape,
const double& theSize,
std::vector< ControlPnt >& thePoints );
void createPointsSampleFromEdge( const TopoDS_Edge& theEdge,
const double& theSize,
std::vector<ControlPnt>& thePoints );
void createPointsSampleFromFace( const TopoDS_Face& theFace,
const double& theSize,
std::vector<ControlPnt>& thePoints );
void createPointsSampleFromSolid( const TopoDS_Solid& theSolid,
const double& theSize,
std::vector<ControlPnt>& thePoints );
}
#endif

10
src/SMESH_I/SMESH_DumpPython.cxx
View File

@ -53,10 +53,10 @@ namespace SMESH
size_t TPythonDump::myCounter = 0;
const char theNotPublishedObjectName[] = "__NOT__Published__Object__";
TVar::TVar(CORBA::Double value):myVals(1) { myVals[0] = SMESH_Comment(value); }
TVar::TVar(CORBA::Long value):myVals(1) { myVals[0] = SMESH_Comment(value); }
TVar::TVar(CORBA::Short value):myVals(1) { myVals[0] = SMESH_Comment(value); }
TVar::TVar(const SMESH::double_array& value):myVals(value.length())
TVar::TVar(CORBA::Double value):myVals(1), myIsList(false) { myVals[0] = SMESH_Comment(value); }
TVar::TVar(CORBA::Long value):myVals(1), myIsList(false) { myVals[0] = SMESH_Comment(value); }
TVar::TVar(CORBA::Short value):myVals(1), myIsList(false) { myVals[0] = SMESH_Comment(value); }
TVar::TVar(const SMESH::double_array& value):myVals(value.length()), myIsList(true)
{
for ( size_t i = 0; i < value.length(); i++)
myVals[i] = SMESH_Comment(value[i]);
@ -93,7 +93,7 @@ namespace SMESH
operator<<(const TVar& theVarValue)
{
const std::vector< int >& varIDs = SMESH_Gen_i::GetSMESHGen()->GetLastParamIndices();
if ( theVarValue.myVals.size() != 1 )
if ( theVarValue.myIsList )
{
myStream << "[ ";
for ( size_t i = 1; i <= theVarValue.myVals.size(); ++i )

1
src/SMESH_I/SMESH_PythonDump.hxx
View File

@ -99,6 +99,7 @@ namespace SMESH
struct SMESH_I_EXPORT TVar
{
std::vector< std::string > myVals;
bool myIsList;
TVar(CORBA::Double value);
TVar(CORBA::Long value);
TVar(CORBA::Short value);

2
src/SMESH_SWIG/smeshBuilder.py
View File

@ -4505,7 +4505,7 @@ class Mesh:
## Finds groups of ajacent nodes within Tolerance.
# @param Tolerance the value of tolerance
# @param SubMeshOrGroup SubMesh or Group
# @param SubMeshOrGroup SubMesh, Group or Filter
# @param exceptNodes list of either SubMeshes, Groups or node IDs to exclude from search
# @param SeparateCornerAndMediumNodes if @c True, in quadratic mesh puts
# corner and medium nodes in separate groups thus preventing

8
src/StdMeshers/StdMeshers_MEFISTO_2D.cxx
View File

@ -82,7 +82,6 @@ using namespace std;
StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D(int hypId, int studyId, SMESH_Gen * gen):
SMESH_2D_Algo(hypId, studyId, gen)
{
MESSAGE("StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D");
_name = "MEFISTO_2D";
_shapeType = (1 << TopAbs_FACE);
_compatibleHypothesis.push_back("MaxElementArea");
@ -104,7 +103,6 @@ StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D(int hypId, int studyId, SMESH_Gen *
StdMeshers_MEFISTO_2D::~StdMeshers_MEFISTO_2D()
{
MESSAGE("StdMeshers_MEFISTO_2D::~StdMeshers_MEFISTO_2D");
}
//=============================================================================
@ -189,8 +187,6 @@ bool StdMeshers_MEFISTO_2D::CheckHypothesis
bool StdMeshers_MEFISTO_2D::Compute(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
{
MESSAGE("StdMeshers_MEFISTO_2D::Compute");
TopoDS_Face F = TopoDS::Face(aShape.Oriented(TopAbs_FORWARD));
// helper builds quadratic mesh if necessary
@ -284,8 +280,6 @@ bool StdMeshers_MEFISTO_2D::Compute(SMESH_Mesh & aMesh, const TopoDS_Shape & aSh
if (ierr == 0)
{
MESSAGE("... End Triangulation Generated Triangle Number " << nbt);
MESSAGE(" Node Number " << nbst);
StoreResult(nbst, uvst, nbt, nust, mefistoToDS, scalex, scaley);
isOk = true;
}
@ -313,8 +307,6 @@ bool StdMeshers_MEFISTO_2D::Evaluate(SMESH_Mesh & aMesh,
const TopoDS_Shape & aShape,
MapShapeNbElems& aResMap)
{
MESSAGE("StdMeshers_MEFISTO_2D::Evaluate");
TopoDS_Face F = TopoDS::Face(aShape.Oriented(TopAbs_FORWARD));
double aLen = 0.0;

18
src/StdMeshers/StdMeshers_RadialQuadrangle_1D2D.cxx
View File

@ -306,6 +306,24 @@ namespace
}
deviation2sideInd.insert( make_pair( devia, iS ));
}
double maxDevi = deviation2sideInd.rbegin()->first;
if ( maxDevi < 1e-7 && sides.size() == 3 )
{
// a triangle FACE; use a side with the most outstanding length as an elliptic one
deviation2sideInd.clear();
multimap< double, int > len2sideInd;
for ( size_t iS = 0; iS < sides.size(); ++iS )
len2sideInd.insert( make_pair( sides[iS]->Length(), iS ));
multimap< double, int >::iterator l2i = len2sideInd.begin();
double len0 = l2i->first;
double len1 = (++l2i)->first;
double len2 = (++l2i)->first;
if ( len1 - len0 > len2 - len1 )
deviation2sideInd.insert( make_pair( 0., len2sideInd.begin()->second ));
else
deviation2sideInd.insert( make_pair( 0., len2sideInd.rbegin()->second ));
}
int iCirc = deviation2sideInd.rbegin()->second;
aCircSide = sides[ iCirc ];

6
src/StdMeshers/StdMeshers_Regular_1D.cxx
View File

@ -991,7 +991,9 @@ bool StdMeshers_Regular_1D::computeInternalParameters(SMESH_Mesh & theMesh,
case FIXED_POINTS_1D:
{
const std::vector<double>& aPnts = _fpHyp->GetPoints();
const std::vector<int>& nbsegs = _fpHyp->GetNbSegments();
std::vector<int> nbsegs = _fpHyp->GetNbSegments();
if ( theReverse )
std::reverse( nbsegs.begin(), nbsegs.end() );
// sort normalized params, taking into account theReverse
TColStd_SequenceOfReal Params;
@ -1146,7 +1148,7 @@ bool StdMeshers_Regular_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & t
{
list< double > params;
bool reversed = false;
if ( theMesh.GetShapeToMesh().ShapeType() >= TopAbs_WIRE ) {
if ( theMesh.GetShapeToMesh().ShapeType() >= TopAbs_WIRE && _revEdgesIDs.empty() ) {
// if the shape to mesh is WIRE or EDGE
reversed = ( EE.Orientation() == TopAbs_REVERSED );
}