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// Modified 23/02/98 : FMN ; Remplacement PI par Standard_PI
#define G002 //TCL: Add new DrawElement(), DrawVertex() methods
#define VERTEXMARKER 2
#define DEFAULTMARKERSIZE 3.0
#define MAXPOINTS 1023
#define IMPLEMENTED
#include <Graphic2d_EllipsMarker.ixx>
#include <TShort_Array1OfShortReal.hxx>
#define MAXPOINTS 1023
Graphic2d_EllipsMarker::Graphic2d_EllipsMarker (
const Handle(Graphic2d_GraphicObject)& aGraphicObject,
const Quantity_Length aXPosition,
const Quantity_Length aYPosition,
const Standard_Real X,
const Standard_Real Y,
const Standard_Real MajorRadius,
const Standard_Real MinorRadius,
const Quantity_PlaneAngle anAngle)
:Graphic2d_VectorialMarker (aGraphicObject, aXPosition, aYPosition),
myX (Standard_ShortReal (X)),
myY (Standard_ShortReal (Y)),
myMajorRadius (Standard_ShortReal (MajorRadius)),
myMinorRadius (Standard_ShortReal (MinorRadius)),
myAngle (Standard_ShortReal(anAngle)) {
if (myMajorRadius <= RealEpsilon ())
Graphic2d_EllipsDefinitionError::Raise ("The major radius = 0.");
if (myMinorRadius <= RealEpsilon ())
Graphic2d_EllipsDefinitionError::Raise ("The minor radius = 0.");
#ifdef IMPLEMENTED
myMinX = myX + Standard_ShortReal (aXPosition) - myMajorRadius;
myMinY = myY + Standard_ShortReal (aYPosition) - myMinorRadius;
myMaxX = myX + Standard_ShortReal (aXPosition) + myMajorRadius;
myMaxY = myY + Standard_ShortReal (aYPosition) + myMinorRadius;
#else
myMinX = myX;
myMinY = myY;
myMaxX = myX;
myMaxY = myY;
#endif /* NOT IMPLEMENTED */
myNumOfElem = 4;
myNumOfVert = 1;
}
void Graphic2d_EllipsMarker::Draw (const Handle(Graphic2d_Drawer)& aDrawer) {
DrawLineAttrib(aDrawer);
Standard_ShortReal xp,yp;
aDrawer->GetMapFromTo(Standard_ShortReal (XPosition ()),
Standard_ShortReal (YPosition ()),xp,yp);
xp+= myX;
yp+= myY;
Standard_ShortReal Def;
Standard_ShortReal Coeff;
Aspect_TypeOfDeflection Type;
aDrawer->DrawPrecision(Def,Coeff,Type);
if (Type == Aspect_TOD_RELATIVE) Def = myMajorRadius * Coeff;
Standard_Real val;
if(myMajorRadius > Def)
val = Max( 0.0044 , Min (0.7854 , 2. * ACos(1.-Def/myMajorRadius)));
else
val = 0.7854; // = Standard_PI/4.
Standard_Integer nbpoints = Min(MAXPOINTS,Standard_Integer(2*Standard_PI/val)+2);
// Standard_Integer nbpoints = Max ( 8 ,Standard_Integer ( myMajorRadius / Def));
Standard_ShortReal teta = Standard_ShortReal( 2*Standard_PI /nbpoints);
Standard_ShortReal x1 = Standard_ShortReal( myMajorRadius *Cos (myAngle)),
y1 = Standard_ShortReal( myMajorRadius *Sin (myAngle));
Standard_ShortReal x2,y2;
Standard_ShortReal cosin = Standard_ShortReal( Cos(teta) );
x2 = Standard_ShortReal( myMajorRadius * Cos(teta) * Cos(myAngle) -
myMinorRadius * Sin(teta) * Sin(myAngle));
y2 = Standard_ShortReal( myMajorRadius * Cos(teta) * Sin(myAngle) +
myMinorRadius * Sin(teta) * Cos(myAngle));
TShort_Array1OfShortReal X(1,nbpoints+1);
TShort_Array1OfShortReal Y(1,nbpoints+1);
X(1) = x1; Y(1) = y1; X(2) = x2; Y(2) = y2;
for (Standard_Integer i=3; i<= nbpoints+1; i++) {
X(i) = 2*x2*cosin - x1;
Y(i) = 2*y2*cosin - y1;
x1 = x2; y1 = y2; x2 = X(i); y2 = Y(i);
}
if (myTypeOfPolygonFilling == Graphic2d_TOPF_EMPTY) {
aDrawer->DrawPolyline(xp,yp,X,Y);
}
else {
aDrawer->DrawPolygon(xp,yp,X,Y);
}
}
#ifdef G002
void Graphic2d_EllipsMarker::DrawElement( const Handle(Graphic2d_Drawer)& aDrawer,
const Standard_Integer anIndex) {
if ( anIndex > 0 && anIndex < 5) {
DrawLineAttrib(aDrawer);
Standard_ShortReal xp=0.,yp=0., xpp=0., ypp=0.;
aDrawer->GetMapFromTo( Standard_ShortReal(XPosition() ),
Standard_ShortReal(YPosition() ), xp, yp );
xp += myX;
yp += myY;
Standard_ShortReal tSin = Standard_ShortReal( Sin(myAngle) ),
tCos = Standard_ShortReal( Cos(myAngle) );
if ( anIndex == 1 ) {
xpp = Standard_ShortReal( xp - myMinorRadius * tSin );
ypp = Standard_ShortReal( yp + myMinorRadius * tCos );
} else if ( anIndex == 2 ) {
xpp = Standard_ShortReal( xp + myMajorRadius * tCos );
ypp = Standard_ShortReal( yp + myMajorRadius * tSin );
} else if ( anIndex == 3 ) {
xpp = Standard_ShortReal( xp - myMajorRadius * tCos );
ypp = Standard_ShortReal( yp - myMajorRadius * tSin );
} else if ( anIndex == 4 ) {
xpp = Standard_ShortReal( xp + myMinorRadius * tSin );
ypp = Standard_ShortReal( yp - myMinorRadius * tCos );
}
aDrawer->DrawSegment( xp, yp, xpp, ypp );
}
}
void Graphic2d_EllipsMarker::DrawVertex( const Handle(Graphic2d_Drawer)& aDrawer,
const Standard_Integer anIndex) {
if ( anIndex == 1 ) {
DrawMarkerAttrib( aDrawer );
Standard_ShortReal x = aDrawer->ConvertMapToFrom(myX) + myXPosition;
Standard_ShortReal y = aDrawer->ConvertMapToFrom(myY) + myYPosition;
aDrawer->MapMarkerFromTo( VERTEXMARKER, x, y, DEFAULTMARKERSIZE,DEFAULTMARKERSIZE, 0.0 );
}
}
#endif
Standard_Boolean Graphic2d_EllipsMarker::Pick (const Standard_ShortReal X,
const Standard_ShortReal Y,
const Standard_ShortReal aPrecision,
const Handle(Graphic2d_Drawer)& aDrawer)
{
Standard_ShortReal xf1,yf1,xf2,yf2; //Les foyers.
Standard_ShortReal Xp, Yp;
Standard_ShortReal SRX = X, SRY = Y;
Standard_ShortReal Majord = aDrawer->ConvertMapToFrom(myMajorRadius);
Standard_ShortReal Minord = aDrawer->ConvertMapToFrom(myMinorRadius);
Standard_ShortReal x = aDrawer->ConvertMapToFrom(myX) + myXPosition;
Standard_ShortReal y = aDrawer->ConvertMapToFrom(myY) + myYPosition;
Standard_ShortReal maxord = (Minord < Majord ? Majord : Minord);
Standard_Boolean found = Standard_False;
Standard_ShortReal q = Standard_ShortReal(
Sqrt(Abs (Majord * Majord - Minord * Minord)));
Standard_ShortReal cos = Standard_ShortReal( Cos(myAngle) );
Standard_ShortReal sin = Standard_ShortReal( Sin(myAngle) );
//Focus 1 and 2 calcules pour l' ellipse dont le centre
// est ramene a l' origine du repere(0,0)
xf1 = Standard_ShortReal( q * cos );
yf1 = Standard_ShortReal( q * sin );
xf2 = Standard_ShortReal( - q * cos );
yf2 = Standard_ShortReal( - q * sin );
if (myGOPtr->IsTransformed ()) {
gp_GTrsf2d aTrsf = (myGOPtr->Transform ()).Inverted ();
Standard_Real RX = Standard_Real (SRX), RY = Standard_Real (SRY);
aTrsf.Transforms (RX, RY);
SRX = Standard_ShortReal (RX); SRY = Standard_ShortReal (RY);
}
#ifdef G002
if ( Graphic2d_Primitive::IsOn( SRX, SRY, x, y, aPrecision) ) {
SetPickedIndex(-1);
return Standard_True;
} else {
Standard_ShortReal tSin = Standard_ShortReal( Sin(myAngle) ),
tCos = Standard_ShortReal( Cos(myAngle) );
Standard_ShortReal xpp = Standard_ShortReal( x - Minord * tSin ),
ypp = Standard_ShortReal( y + Minord * tCos );
if ( IsOn( SRX, SRY, x, y, xpp, ypp, aPrecision) ) {
SetPickedIndex(1);
return Standard_True;
} else {
xpp = x + Majord * tCos;
ypp = y + Majord * tSin;
if ( IsOn( SRX, SRY, x, y, xpp, ypp, aPrecision) ) {
SetPickedIndex(2);
return Standard_True;
} else {
xpp = x - Majord * tCos;
ypp = y - Majord * tSin;
if ( IsOn( SRX, SRY, x, y, xpp, ypp, aPrecision) ) {
SetPickedIndex(3);
return Standard_True;
} else {
xpp = x + Minord * tSin,
ypp = y - Minord * tCos;
if ( IsOn( SRX, SRY, x, y, xpp, ypp, aPrecision) ) {
SetPickedIndex(4);
return Standard_True;
}
}
}
}
}
#endif
Xp = SRX - x; Yp = SRY - y;
Standard_ShortReal d1,d2;
d1 = Standard_ShortReal(
Sqrt( (xf1 - Xp) * (xf1 - Xp) + (yf1 - Yp) * (yf1 - Yp)));
d2 = Standard_ShortReal(
Sqrt( (xf2 - Xp) * (xf2 - Xp) + (yf2 - Yp) * (yf2 - Yp)));
if (myTypeOfPolygonFilling != Graphic2d_TOPF_EMPTY)
found = Abs (d1 + d2) < 2 * maxord;
if (!found) {
found = Abs (d1 + d2 - 2 * maxord) < aPrecision;
}
return found;
}
void Graphic2d_EllipsMarker::Center(Quantity_Length& X,Quantity_Length& Y) const {
X = Quantity_Length( myX );
Y = Quantity_Length( myY );
}
Quantity_Length Graphic2d_EllipsMarker::MajorRadius() const {
return Quantity_Length( myMajorRadius );
}
Quantity_Length Graphic2d_EllipsMarker::MinorRadius() const {
return Quantity_Length( myMinorRadius );
}
Quantity_PlaneAngle Graphic2d_EllipsMarker::Angle() const {
return Quantity_PlaneAngle( myAngle );
}
void Graphic2d_EllipsMarker::Save(Aspect_FStream& aFStream) const
{
*aFStream << "Graphic2d_EllipsMarker" << endl;
*aFStream << myXPosition << ' ' << myYPosition << endl;
*aFStream << myX << ' ' << myY << endl;
*aFStream << myMajorRadius << ' ' << myMinorRadius << endl;
*aFStream << myAngle << endl;
Graphic2d_Line::Save(aFStream);
}
void Graphic2d_EllipsMarker::Retrieve(Aspect_IFStream& anIFStream,
const Handle(Graphic2d_GraphicObject)& aGraphicObject)
{
Standard_ShortReal XPos, YPos, X, Y, radMaj, radMin, Ang;
*anIFStream >> XPos >> YPos;
*anIFStream >> X >> Y;
*anIFStream >> radMaj >> radMin;
*anIFStream >> Ang;
Handle(Graphic2d_EllipsMarker)
theEllM = new Graphic2d_EllipsMarker(aGraphicObject, XPos, YPos, X, Y,
radMaj, radMin, Ang);
((Handle (Graphic2d_Line))theEllM)->Retrieve(anIFStream);
}
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