home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Dream 52
/
Amiga_Dream_52.iso
/
Linux
/
Divers
/
freedraft.tar.gz
/
freedraft.tar
/
FREEdraft-050298
/
DRAWABLES
/
drawablearc.cpp
< prev
next >
Wrap
C/C++ Source or Header
|
1998-04-23
|
2KB
|
64 lines
// drawablearc.cpp
// Copyright (C) 1997 Cliff Johnson //
// //
// This program is free software; you can redistribute it and/or //
// modify it under the terms of the GNU General Public //
// License as published by the Free Software Foundation; either //
// version 2 of the License, or (at your option) any later version. //
// //
// This software 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 //
// General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this software (see COPYING); if not, write to the //
// Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. //
#include <geom_enum.h>
#include <drawablearc.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <point.h>
#include <arc.h>
DrawableArc::DrawableArc(): DrawableGeom(ARC) {}
void DrawableArc::Draw(const Geom* geom,const float& scale) const
{
if(DrawableGeom::Type()!=ARC)return;
Arc c = Arc(*(reinterpret_cast<const Arc* >(geom) ) );
glBegin(GL_LINE_STRIP);
Point p;
double u,du;
du = 1./37.;
for(int i=0; i<=37; i++){
u = du * i;
p = c.U(u);
glVertex2f(p[0],p[1]);
}
glEnd();
}
void DrawableArc::Select(const Geom* geom,const Handle& h,const float& scale) const
{
if(DrawableGeom::Type()!=ARC)return;
glLoadName(h.Value());
Arc c = Arc(*(reinterpret_cast<const Arc* >(geom) ) );
glBegin(GL_LINE_STRIP);
Point p;
double u,du;
du = 1./37.;
for(int i=0; i<=37; i++){
u = du * i;
p = c.U(u);
glVertex2f(p[0],p[1]);
}
glEnd();
}