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// Modified 23/02/98 : FMN ; Remplacement PI par Standard_PI
// 10/11/98 : GG ; Protection sur methode IsOn() lorsque
// les points sont confondus.
#define G002 //GG_100500
// Change IsOn method with a best computation on short segments.
//
#include <Graphic2d_Line.ixx>
Graphic2d_Line::Graphic2d_Line (const Handle(Graphic2d_GraphicObject)& aGraphicObject)
:Graphic2d_Primitive (aGraphicObject),
myTypeOfPolygonFilling (Graphic2d_TOPF_EMPTY),
myDrawEdge (Standard_True),
myWidthIndex (0),
myTypeIndex (0),
myPatternIndex (0),
myInteriorColorIndex (1) {
SetFamily(Graphic2d_TOP_LINE);
}
void Graphic2d_Line::SetWidthIndex (const Standard_Integer anIndex) {
myWidthIndex = anIndex;
ResetIndex ();
}
void Graphic2d_Line::SetTypeIndex (const Standard_Integer anIndex) {
myTypeIndex = anIndex;
ResetIndex ();
}
void Graphic2d_Line::SetInteriorColorIndex (const Standard_Integer anIndex) {
myInteriorColorIndex = anIndex;
ResetIndex ();
}
void Graphic2d_Line::SetDrawEdge (const Standard_Boolean aDraw) {
myDrawEdge = aDraw;
ResetIndex ();
}
void Graphic2d_Line::SetInteriorPattern (const Standard_Integer anIndex) {
myPatternIndex = anIndex;
ResetIndex ();
}
void Graphic2d_Line::SetTypeOfPolygonFilling (const Graphic2d_TypeOfPolygonFilling aType) {
myTypeOfPolygonFilling = aType;
ResetIndex ();
}
Standard_Integer Graphic2d_Line::WidthIndex () const {
return myWidthIndex;
}
Standard_Integer Graphic2d_Line::InteriorColorIndex () const {
return myInteriorColorIndex;
}
Standard_Integer Graphic2d_Line::InteriorPattern () const {
return myPatternIndex;
}
Graphic2d_TypeOfPolygonFilling Graphic2d_Line::TypeOfPolygonFilling () const {
return myTypeOfPolygonFilling;
}
Standard_Integer Graphic2d_Line::TypeIndex () const {
return myTypeIndex;
}
void Graphic2d_Line::DrawLineAttrib (const Handle(Graphic2d_Drawer)& aDrawer)
const {
aDrawer->SetLineAttrib (myColorIndex,myTypeIndex,myWidthIndex);
switch (myTypeOfPolygonFilling) {
case Graphic2d_TOPF_FILLED:
aDrawer->SetPolyAttrib (myInteriorColorIndex,0,myDrawEdge);
break;
case Graphic2d_TOPF_PATTERNED:
aDrawer->SetPolyAttrib (myInteriorColorIndex,
myPatternIndex,myDrawEdge);
break;
default: break;
}
}
void Graphic2d_Line::DrawMarkerAttrib (const Handle(Graphic2d_Drawer)& aDrawer)
const {
Standard_Boolean filled = (myTypeOfPolygonFilling != Graphic2d_TOPF_EMPTY);
switch (myTypeOfPolygonFilling) {
case Graphic2d_TOPF_FILLED:
aDrawer->SetPolyAttrib (myInteriorColorIndex,0,Standard_False);
break;
case Graphic2d_TOPF_PATTERNED:
aDrawer->SetPolyAttrib (myInteriorColorIndex,myPatternIndex,Standard_False);
break;
default: break;
}
aDrawer->SetMarkerAttrib (myColorIndex,myWidthIndex,filled);
}
Standard_Boolean Graphic2d_Line::IsIn ( const Standard_ShortReal aX,
const Standard_ShortReal aY,
const TShort_Array1OfShortReal& X,
const TShort_Array1OfShortReal& Y,
const Standard_ShortReal aPrecision)
{
Standard_Integer i1=0,i2=0,n;
Standard_Real dx1,dy1,dx2,dy2,anglesum=0.,angle;
Standard_Real prosca,provec,norme1,norme2,cosin;
n = X.Length ();
for (Standard_Integer m = 1; m <= n; m++) {
i1++;
i2 = (i1 == n) ? 1 : i1 + 1;
dx1 = X(i1) - aX; dy1 = Y(i1) - aY;
dx2 = X(i2) - aX; dy2 = Y(i2) - aY;
prosca = dx1 * dx2 + dy1 * dy2;
provec = dx1 * dy2 - dx2 * dy1;
norme1 = Sqrt ( dx1 * dx1 + dy1 * dy1 );
norme2 = Sqrt ( dx2 * dx2 + dy2 * dy2 );
if ( norme1 <= aPrecision || norme2 <= aPrecision ) return Standard_True;
cosin = prosca / norme1 / norme2;
if ( cosin >= 1 ) angle = 0.;
else {
if ( cosin <= -1) angle = - Standard_PI;
else
angle = Sign ( ACos ( cosin ) , provec );
}
anglesum = anglesum + angle;}
return (Abs (anglesum) > 1.) ;
}
Standard_Boolean Graphic2d_Line::IsOn ( const Standard_ShortReal aX,
const Standard_ShortReal aY,
const Standard_ShortReal aX1,
const Standard_ShortReal aY1,
const Standard_ShortReal aX2,
const Standard_ShortReal aY2,
const Standard_ShortReal aPrecision)
{
Standard_ShortReal DX = aX2 - aX1, DY = aY2 - aY1, dd = DX*DX + DY*DY;
#ifdef G002
if( Sqrt(dd) < aPrecision )
#else
if( dd < aPrecision )
#endif
return (Abs (aX - aX1) + Abs (aY - aY1)) < aPrecision;
Standard_ShortReal lambda = (DX*(aX-aX1) + DY*(aY-aY1)) / dd;
if ( lambda >= 0. && lambda <= 1. ) {
// On prend comme norme la somme des valeurs absolues:
Standard_ShortReal Xproj = aX1 + lambda * DX;
Standard_ShortReal Yproj = aY1 + lambda * DY;
return (Abs (aX - Xproj) + Abs (aY - Yproj)) < aPrecision;
}
else
return Standard_False;
}
void Graphic2d_Line::Save(Aspect_FStream& aFStream) const
{
*aFStream << myColorIndex << ' ' << myWidthIndex << endl;
*aFStream << myTypeIndex << ' ' << myPatternIndex << endl;
*aFStream << myInteriorColorIndex << ' ' << myTypeOfPolygonFilling << ' ' << myDrawEdge << endl;
}
void Graphic2d_Line::Retrieve(Aspect_IFStream& anIFStream)
{
int topf;
*anIFStream >> myColorIndex >> myWidthIndex;
*anIFStream >> myTypeIndex >> myPatternIndex;
*anIFStream >> myInteriorColorIndex;
*anIFStream >> topf;
myTypeOfPolygonFilling=Graphic2d_TypeOfPolygonFilling(topf);
*anIFStream >> myDrawEdge;
}
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