#include <Font_BRepFont.hxx>
#include <BRep_Tool.hxx>
+#include <BRepTopAdaptor_FClass2d.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <BRepBuilderAPI_MakeWire.hxx>
#include <BRepLib_MakeEdge.hxx>
#include <GeomAdaptor_HSurface.hxx>
#include <GeomLib.hxx>
#include <gp_Pln.hxx>
-#include <ShapeBuild_ReShape.hxx>
-#include <ShapeFix_Edge.hxx>
-#include <ShapeFix_Wire.hxx>
#include <TColGeom2d_HSequenceOfBoundedCurve.hxx>
#include <TCollection_AsciiString.hxx>
#include <TCollection_HAsciiString.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Vertex.hxx>
+#include <TopTools_DataMapOfShapeInteger.hxx>
+#include <TopTools_DataMapOfShapeSequenceOfShape.hxx>
#include <ft2build.h>
#include FT_FREETYPE_H
return gp_XY (theScaleUnits * Standard_Real(theVec.x) * theWidthScaling / 64.0, theScaleUnits * Standard_Real(theVec.y) / 64.0);
}
+ //! Auxiliary method for classification wire theW2 with respect to wire theW1
+ static TopAbs_State classifyWW (const TopoDS_Wire& theW1,
+ const TopoDS_Wire& theW2,
+ const TopoDS_Face& theF)
+ {
+ TopAbs_State aRes = TopAbs_UNKNOWN;
+
+ TopoDS_Face aF = TopoDS::Face (theF.EmptyCopied());
+ aF.Orientation (TopAbs_FORWARD);
+ BRep_Builder aB;
+ aB.Add (aF, theW1);
+ BRepTopAdaptor_FClass2d aClass2d (aF, ::Precision::PConfusion());
+ for (TopoDS_Iterator anEdgeIter (theW2); anEdgeIter.More(); anEdgeIter.Next())
+ {
+ const TopoDS_Edge& anEdge = TopoDS::Edge (anEdgeIter.Value());
+ Standard_Real aPFirst = 0.0, aPLast = 0.0;
+ Handle(Geom2d_Curve) aCurve2d = BRep_Tool::CurveOnSurface (anEdge, theF, aPFirst, aPLast);
+ if (aCurve2d.IsNull())
+ {
+ continue;
+ }
+
+ gp_Pnt2d aPnt2d = aCurve2d->Value ((aPFirst + aPLast) / 2.0);
+ TopAbs_State aState = aClass2d.Perform (aPnt2d, Standard_False);
+ if (aState == TopAbs_OUT
+ || aState == TopAbs_IN)
+ {
+ if (aRes == TopAbs_UNKNOWN)
+ {
+ aRes = aState;
+ }
+ else if (aRes != aState)
+ {
+ return TopAbs_UNKNOWN;
+ }
+ }
+ }
+ return aRes;
+ }
+
}
// =======================================================================
myCurve2dAdaptor = new Geom2dAdaptor_HCurve();
Handle(Adaptor3d_HSurface) aSurfAdaptor = new GeomAdaptor_HSurface (mySurface);
myCurvOnSurf.Load (aSurfAdaptor);
-
- myFixer.FixWireMode() = 1;
- myFixer.FixOrientationMode() = 1;
- myFixer.FixSplitFaceMode() = 1; // some glyphs might be composed from several faces
- Handle(ShapeFix_Wire) aWireFixer = myFixer.FixWireTool();
- aWireFixer->FixConnectedMode() = 1;
- aWireFixer->ClosedWireMode() = Standard_True;
- Handle(ShapeBuild_ReShape) aContext = new ShapeBuild_ReShape();
- myFixer.SetContext (aContext);
}
// =======================================================================
return !theCurve3d.IsNull();
}
+
+// =======================================================================
+// function : buildFaces
+// purpose :
+// =======================================================================
+Standard_Boolean Font_BRepFont::buildFaces (const NCollection_Sequence<TopoDS_Wire>& theWires,
+ TopoDS_Shape& theRes)
+{
+ // classify wires
+ NCollection_DataMap<TopoDS_Shape, NCollection_Sequence<TopoDS_Wire>, TopTools_ShapeMapHasher> aMapOutInts;
+ TopTools_DataMapOfShapeInteger aMapNbOuts;
+ TopoDS_Face aF;
+ myBuilder.MakeFace (aF, mySurface, myPrecision);
+ Standard_Integer aWireIter1Index = 1;
+ for (NCollection_Sequence<TopoDS_Wire>::Iterator aWireIter1 (theWires); aWireIter1.More(); ++aWireIter1Index, aWireIter1.Next())
+ {
+ const TopoDS_Wire& aW1 = aWireIter1.Value();
+ if (!aMapNbOuts.IsBound (aW1))
+ {
+ const Standard_Integer aNbOuts = 0;
+ aMapNbOuts.Bind (aW1, aNbOuts);
+ }
+
+ NCollection_Sequence<TopoDS_Wire>* anIntWs = aMapOutInts.Bound (aW1, NCollection_Sequence<TopoDS_Wire>());
+ Standard_Integer aWireIter2Index = 1;
+ for (NCollection_Sequence<TopoDS_Wire>::Iterator aWireIter2 (theWires); aWireIter2.More(); ++aWireIter2Index, aWireIter2.Next())
+ {
+ if (aWireIter1Index == aWireIter2Index)
+ {
+ continue;
+ }
+
+ const TopoDS_Wire& aW2 = aWireIter2.Value();
+ const TopAbs_State aClass = classifyWW (aW1, aW2, aF);
+ if (aClass == TopAbs_IN)
+ {
+ anIntWs->Append (aW2);
+ if (Standard_Integer* aNbOutsPtr = aMapNbOuts.ChangeSeek (aW2))
+ {
+ ++(*aNbOutsPtr);
+ }
+ else
+ {
+ const Standard_Integer aNbOuts = 1;
+ aMapNbOuts.Bind (aW2, aNbOuts);
+ }
+ }
+ }
+ }
+
+ // check out wires and remove "not out" wires from maps
+ for (TopTools_DataMapIteratorOfDataMapOfShapeInteger anOutIter (aMapNbOuts); anOutIter.More(); anOutIter.Next())
+ {
+ const Standard_Integer aTmp = anOutIter.Value() % 2;
+ if (aTmp > 0)
+ {
+ // not out wire
+ aMapOutInts.UnBind (anOutIter.Key());
+ }
+ }
+
+ // create faces for out wires
+ TopTools_MapOfShape anUsedShapes;
+ TopoDS_Compound aFaceComp;
+ myBuilder.MakeCompound (aFaceComp);
+ for (; !aMapOutInts.IsEmpty(); )
+ {
+ // find out wire with max number of outs
+ TopoDS_Shape aW;
+ Standard_Integer aMaxNbOuts = -1;
+ for (NCollection_DataMap<TopoDS_Shape, NCollection_Sequence<TopoDS_Wire>, TopTools_ShapeMapHasher>::Iterator itMOI (aMapOutInts);
+ itMOI.More(); itMOI.Next())
+ {
+ const TopoDS_Shape& aKey = itMOI.Key();
+ const Standard_Integer aNbOuts = aMapNbOuts.Find (aKey);
+ if (aNbOuts > aMaxNbOuts)
+ {
+ aMaxNbOuts = aNbOuts;
+ aW = aKey;
+ }
+ }
+
+ // create face for selected wire
+ TopoDS_Face aNewF;
+ myBuilder.MakeFace (aNewF, mySurface, myPrecision);
+ myBuilder.Add (aNewF, aW);
+ anUsedShapes.Add (aW);
+ const NCollection_Sequence<TopoDS_Wire>& anIns = aMapOutInts.Find (aW);
+ for (NCollection_Sequence<TopoDS_Wire>::Iterator aWireIter (anIns); aWireIter.More(); aWireIter.Next())
+ {
+ TopoDS_Wire aWin = aWireIter.Value();
+ if (anUsedShapes.Contains (aWin))
+ {
+ continue;
+ }
+
+ aWin.Reverse();
+ myBuilder.Add (aNewF, aWin);
+ anUsedShapes.Add (aWin);
+ }
+
+ myBuilder.Add (aFaceComp, aNewF);
+ aMapOutInts.UnBind (aW);
+ }
+
+ if (aFaceComp.NbChildren() == 0)
+ {
+ return Standard_False;
+ }
+
+ if (aFaceComp.NbChildren() == 1)
+ {
+ theRes = TopoDS_Iterator (aFaceComp).Value();
+ }
+ else
+ {
+ theRes = aFaceComp;
+ }
+ return Standard_True;
+}
+
+
// =======================================================================
// function : renderGlyph
// purpose :
return Standard_False;
TopLoc_Location aLoc;
- TopoDS_Face aFaceDraft;
+ NCollection_Sequence<TopoDS_Wire> aWires;
TopoDS_Compound aFaceCompDraft;
// Get orientation is useless since it doesn't retrieve any in-font information and just computes orientation.
TopoDS_Wire aWireDraft = aWireMaker.Wire();
if (!myIsSingleLine)
{
- //if (anOrient == FT_ORIENTATION_FILL_LEFT)
- //{
- // According to the TrueType specification, clockwise contours must be filled
- aWireDraft.Reverse();
- //}
- if (aFaceDraft.IsNull())
+ // collect all wires and set CCW orientation
+ TopoDS_Face aFace;
+ myBuilder.MakeFace (aFace, mySurface, myPrecision);
+ myBuilder.Add (aFace, aWireDraft);
+ BRepTopAdaptor_FClass2d aClass2d (aFace, ::Precision::PConfusion());
+ TopAbs_State aState = aClass2d.PerformInfinitePoint();
+ if (aState != TopAbs_OUT)
{
- myBuilder.MakeFace (aFaceDraft, mySurface, myPrecision);
+ // need to reverse
+ aWireDraft.Reverse();
}
- myBuilder.Add (aFaceDraft, aWireDraft);
+ aWires.Append (aWireDraft);
}
else
{
}
}
- if (!aFaceDraft.IsNull())
+ if (!aWires.IsEmpty())
{
- myFixer.Init (aFaceDraft);
- myFixer.Perform();
- TopoDS_Shape aFixResult = myFixer.Result();
- if (!aFixResult.IsNull()
- && aFixResult.ShapeType() != TopAbs_FACE)
- {
- // shape fix can not fix orientation within the single call
- if (aFaceCompDraft.IsNull())
- {
- myBuilder.MakeCompound (aFaceCompDraft);
- }
- for (TopExp_Explorer aFaceIter (aFixResult, TopAbs_FACE); aFaceIter.More(); aFaceIter.Next())
- {
- TopoDS_Face aFace = TopoDS::Face (aFaceIter.Current());
- myFixer.Init (aFace);
- myFixer.Perform();
- myBuilder.Add (aFaceCompDraft, myFixer.Result());
- }
- theShape = aFaceCompDraft;
- }
- else if (!aFaceCompDraft.IsNull())
- {
- myBuilder.Add (aFaceCompDraft, aFixResult);
- theShape = aFaceCompDraft;
- }
- else
- {
- theShape = aFixResult;
- }
+ buildFaces (aWires, theShape);
}
else if (!aFaceCompDraft.IsNull())
{
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