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#define BUC60639 //GG 15/03/00 Avoid to compute view minmax
// including grid origin marker.
// // Sets correctly the grid origin marker size.
#define OCC194 //jfa 28/02/2002
// Fill all the viewer area with rotated rectangular grid
#include <V2d_RectangularGraphicGrid.ixx>
#include <Aspect_Driver.hxx>
#ifdef BUC60639
#define MTHICK 6
#define MINDEX 4
#endif
//=======================================================================
//function : V2d_RectangularGraphicGrid
//purpose :
//=======================================================================
V2d_RectangularGraphicGrid::V2d_RectangularGraphicGrid(
const Handle(Graphic2d_GraphicObject)& aGraphicObject,
const Standard_Real X,
const Standard_Real Y,
const Standard_Real alpha,
const Standard_Real beta,
const Standard_Real xo,
const Standard_Real yo,
const Standard_Integer aTenthColorIndex)
:Graphic2d_Primitive(aGraphicObject),StepX((Standard_ShortReal)(X)), StepY((Standard_ShortReal)(Y)),
a1((Standard_ShortReal)(alpha)),a2((Standard_ShortReal)(beta)),
OX((Standard_ShortReal)(xo)),OY((Standard_ShortReal)(yo)),
DrawMode(Aspect_GDM_Lines),myTenthColorIndex(aTenthColorIndex){
}
//=======================================================================
//function : Draw
//purpose :
//=======================================================================
void V2d_RectangularGraphicGrid::Draw(const Handle(Graphic2d_Drawer)& aDrawer) {
Standard_ShortReal XF, YF, SF, XT, YT, STANDARD, ZF;
aDrawer->Values (XF, YF, SF, XT, YT, STANDARD, ZF);
//
Standard_Real w,h; aDrawer->Driver()->WorkSpace(w,h);
// cout << "Work space: " << w << "," << h << endl;
Standard_ShortReal Coef = Standard_ShortReal( (w > h) ? (w/h) : h/w);
#ifdef OCC194
if (Abs(a1) > 0.0)
{
Standard_ShortReal alpha = Standard_ShortReal( a1 - ((Standard_Integer)(a1/1.57))*1.57 );
alpha = Standard_ShortReal ( alpha - 1.57/2.0 ); // @todo These numbers should really be PI / 2 and PI / 4
Coef = (Standard_ShortReal) Abs(Coef * 1.41 * Cos(alpha));
}
#endif
switch (DrawMode){
case Aspect_GDM_Points:
aDrawer->SetMarkerAttrib (myTenthColorIndex,0,0);
DrawPoints(aDrawer,XF,YF,SF * Coef);
break;
case Aspect_GDM_Lines:
default:
aDrawer->SetLineAttrib (myColorIndex,0,0);
DrawNetwork(aDrawer,a1,StepX,XF,YF,SF * Coef);
DrawNetwork(aDrawer,a2,StepY,XF,YF,SF * Coef);
}
#ifdef BUC60639
aDrawer->SetMarkerAttrib(myTenthColorIndex,MTHICK,Standard_False);
aDrawer->MapMarkerFromTo (MINDEX, OX, OY, (Standard_ShortReal)(StepX/2.), (Standard_ShortReal)(StepY/2.), 0.0);
#endif
}
//=======================================================================
//function : Pick
//purpose :
//=======================================================================
Standard_Boolean V2d_RectangularGraphicGrid::Pick(const Standard_ShortReal ,
const Standard_ShortReal ,
const Standard_ShortReal ,
const Handle(Graphic2d_Drawer)& )
{
return Standard_False;
}
//=======================================================================
//function : DrawNetwork
//purpose :
//=======================================================================
void V2d_RectangularGraphicGrid::DrawNetwork(const Handle(Graphic2d_Drawer)& aDrawer,
const Standard_ShortReal alpha,
const Standard_ShortReal step,
const Standard_ShortReal XF,
const Standard_ShortReal YF,
const Standard_ShortReal SF) const
{
Standard_Real thestep = step;
#ifdef OCC194
Standard_Integer n = Standard_Integer ( SF * 2 / thestep ) + 1;
#else
Standard_Integer n = Standard_Integer ( SF / thestep ) * 2 + 1;
#endif
//+zov Fixing CTS17856
// cerr << "V2d...Grid::DrawNetwork: step = " << step << " alpha" << alpha << " n = " << n << endl << flush;
//-zov
//+zov Fixing CTS17856
// Standard_ShortReal c = cos(alpha);
// Standard_ShortReal s = sin(alpha);
Standard_ShortReal s = Standard_ShortReal(cos(alpha));
Standard_ShortReal c = Standard_ShortReal(-sin(alpha));
//-zov
Standard_ShortReal d = Abs(s*(XF-OX) - c*(YF-OY));
Standard_Integer n1 = (Standard_Integer )( (d + SF) / thestep);
Standard_ShortReal decalx,decaly;
Standard_ShortReal deltax = (Standard_ShortReal) ( thestep * s );
Standard_ShortReal deltay = (Standard_ShortReal) (- thestep * c );
Standard_Boolean neg = s*(XF-OX) - c*(YF-OY) < 0 ? Standard_True
: Standard_False;
if ( neg ) {
decalx = (Standard_ShortReal) (OX - n1 * thestep * s );
decaly = (Standard_ShortReal) (OY + n1 * thestep * c );
deltax = (Standard_ShortReal) ( thestep * s );
deltay = (Standard_ShortReal) (- thestep * c );
}
else {
decalx = (Standard_ShortReal) (OX + n1 * thestep * s );
decaly = (Standard_ShortReal) (OY - n1 * thestep * c );
deltax = (Standard_ShortReal) (- thestep * s );
deltay = (Standard_ShortReal) ( thestep * c );
}
Standard_Integer p = Modulus( n1 , 10);
for (Standard_Integer i = 1; i <= n ; i++) {
if( p == 0){
aDrawer->SetLineAttrib(myTenthColorIndex,0,0);
aDrawer->MapInfiniteLineFromTo(decalx ,decaly ,c,s);
aDrawer->SetLineAttrib(myColorIndex,0,0);
}
else
if (n < 300)aDrawer->MapInfiniteLineFromTo(decalx ,decaly ,c,s);
p = p >= 1 ? p-1: 9;
decalx += deltax;
decaly += deltay;
}
}
//=======================================================================
//function : DrawPoints
//purpose :
//=======================================================================
void V2d_RectangularGraphicGrid::DrawPoints(const Handle(Graphic2d_Drawer)& aDrawer,
const Standard_ShortReal XF,
const Standard_ShortReal YF,
const Standard_ShortReal SF) const
{
Standard_ShortReal sx = StepX;
Standard_ShortReal sy = StepY;
Standard_Integer n = Standard_Integer(SF/Min(sx,sy)) * 2 + 1;
//+zov Fixing CTS17856
// Standard_ShortReal sin1 = Standard_ShortReal(Sin(a1));
// Standard_ShortReal cos1 = Standard_ShortReal(Cos(a1));
// Standard_ShortReal sin2 = Standard_ShortReal(Sin(a2));
// Standard_ShortReal cos2 = Standard_ShortReal(Cos(a2));
Standard_ShortReal cos1 = -Standard_ShortReal(Sin(a1));
Standard_ShortReal sin1 = Standard_ShortReal(Cos(a1));
Standard_ShortReal cos2 = -Standard_ShortReal(Sin(a2));
Standard_ShortReal sin2 = Standard_ShortReal(Cos(a2));
// well it's somewhat silly to call cos sinus and vice versa but
// it is the simplest way to patch a hole. I mean CTS17856. (zov)
//-zov
Standard_ShortReal c1 = OX * sin1 - OY * cos1;
Standard_ShortReal c2 = OX * sin2 - OY * cos2;
Standard_ShortReal D1 = sin1 * XF - cos1 * YF - c1;
Standard_ShortReal D2 = sin2 * XF - cos2 * YF - c2;
Standard_Integer n1 = Standard_Integer ( Abs(D1)/sx + 0.5);
Standard_Integer n2 = Standard_Integer ( Abs(D2)/sy + 0.5);
Standard_ShortReal offset1 = (Standard_ShortReal) (c1 + Standard_ShortReal(n1) * Sign (sx , D1));
Standard_ShortReal offset2 = (Standard_ShortReal) (c2 + Standard_ShortReal(n2) * Sign (sy , D2));
Standard_ShortReal Delta = sin1*cos2 - cos1*sin2;
Standard_ShortReal gridX = ( offset1*cos2 - offset2*cos1) /Delta;
Standard_ShortReal gridY = ( offset1*sin2 - offset2*sin1) /Delta;
Standard_ShortReal v1x = sx * cos2;
Standard_ShortReal v1y = sx * sin2;
Standard_ShortReal v2x = sy * cos1;
Standard_ShortReal v2y = sy * sin1;
Standard_ShortReal debx = gridX - n/2 * v1x - n/2 * v2x;
Standard_ShortReal deby = gridY - n/2 * v1y - n/2 * v2y;
Standard_ShortReal ax;
Standard_ShortReal ay;
for (Standard_Integer i=1; i<=n ; i++) {
ax = debx;
ay = deby;
for (Standard_Integer j=1; j<=n ; j++) {
aDrawer->MapMarkerFromTo(0,ax,ay,Standard_ShortReal(0.001),Standard_ShortReal(0.001),0.);
ax += v1x;
ay += v1y;
}
debx += v2x;
deby += v2y;
}
}
//=======================================================================
//function : SetDrawMode
//purpose :
//=======================================================================
void V2d_RectangularGraphicGrid::SetDrawMode (const Aspect_GridDrawMode aDrawMode)
{
DrawMode = aDrawMode;
}
//=======================================================================
//function : Save
//purpose :
//=======================================================================
void V2d_RectangularGraphicGrid::Save(Aspect_FStream& /*aFStream*/) const
{
}
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