void TEXT2D::draw_debug(const char* str, Wpt &pos, CVIEWptr& view)
{
if (view->rendering() == RCOLOR_ID || view->grabbing_screen())
return;
if (!_dl.valid(view)) initialize(view);
// GL initialization
glPushAttrib(GL_ENABLE_BIT); // (GL_ENABLE_BIT)
// No lighting
glDisable(GL_LIGHTING);
// Color
//glColor3dv(COLOR::white.data());
glRasterPos3dv(pos.data());
glPushAttrib (GL_LIST_BIT); // (GL_LIST_BIT)
glListBase(_dl.dl(view));
glCallLists(strlen(str), GL_UNSIGNED_BYTE, (GLubyte *) str);
glPopAttrib (); // (GL_LIST_BIT)
glEnable(GL_LIGHTING);
glPopAttrib(); // (GL_ENABLE_BIT)
glFlush();
}
void
Bpoint::draw_axes()
{
const double PIX_LEN = 30;
const double len = world_length(loc(), PIX_LEN);
Wtransf xf = map()->xf();
Wpt o = xf * Wpt::Origin();
Wpt x = xf * Wpt(len,0,0);
Wpt y = xf * Wpt(0,len,0);
Wpt z = xf * Wpt(0,0,len);
GLfloat w = GLfloat(1.0 * VIEW::peek()->line_scale());
GL_VIEW::init_line_smooth(w, GL_CURRENT_BIT);
glDisable(GL_LIGHTING); // GL_ENABLE_BIT
glBegin(GL_LINES);
// draw x, y, z in red, yellow, blue
GL_COL(Color::red, 1); // GL_CURRENT_BIT
glVertex3dv(o.data());
glVertex3dv(x.data());
GL_COL(Color::yellow, 1); // GL_CURRENT_BIT
glVertex3dv(o.data());
glVertex3dv(y.data());
GL_COL(Color::blue, 1); // GL_CURRENT_BIT
glVertex3dv(o.data());
glVertex3dv(z.data());
glEnd();
GL_VIEW::end_line_smooth();
}
/**********************************************************************
* ZcrossTexture:
**********************************************************************/
int
ZcrossTexture::draw(CVIEWptr& v)
{
if (_ctrl)
return _ctrl->draw(v);
// Ensure zcross strips are current, and get them
_patch->mesh()->build_zcross_strips();
// Get a reference for low-overhead:
//const ZcrossPath& zx_sils = _patch->zx_sils();
//needs to have a current sils (simon)
const ZcrossPath& zx_sils = _patch->cur_zx_sils();
// Stop now, before making partial GL calls, if nothing is going on
if (zx_sils.empty())
return 1;
// Set line width, (optionally) enable antialiasing, and save GL state
GLfloat w = float(v->line_scale()*_width);
static bool antialias = Config::get_var_bool("ANTIALIAS_SILS",true,true);
static bool drawback = Config::get_var_bool("DRAW_BACKFACING",false,true);
if (antialias) {
// push attributes, enable line smoothing, and set line width
GL_VIEW::init_line_smooth(w, GL_CURRENT_BIT);
} else {
// push state, set line width
glPushAttrib(GL_LINE_BIT | GL_ENABLE_BIT | GL_CURRENT_BIT);
glLineWidth(w); // GL_LINE_BIT
}
glDisable(GL_BLEND);
glDisable(GL_LIGHTING); // GL_ENABLE_BIT
GL_COL(_color, alpha()); // GL_CURRENT_BIT
// right now we're only doing OpenGL, ignoring CB
int n = zx_sils.num();
bool started = false;
bool lvis = false;
bool vis = false;
static bool nodots = Config::get_var_bool("ZX_NO_DOTS",false,true);
static bool nocolor = Config::get_var_bool("ZX_NO_COLOR",false,true);
//XXX - Hack. Not good when a loop isn't closed.
// But I'm in a hurry to close proper loops...
static bool closed = Config::get_var_bool("ZX_CLOSED",false,true);
srand48(0);
if (!nocolor)
glColor3d ( drand48(), drand48(), drand48() );
else
glColor3d ( 0.0, 0.0, 0.0 );
Wpt wp;
if (!nodots) {
glPointSize(5.0);
glBegin ( GL_POINTS ) ;
for ( int k =0 ; k < n; k++ ) {
glColor3d ( 0.0 , 0.0 , 1.0 );
if ( zx_sils.face(k) == NULL )
glColor3d ( 1.0, 0, 0 );
glVertex3dv ( zx_sils.point(k).data() );
}
glEnd();
}
if ( !drawback ) {
for (int i=0; i < n; i++) {
vis = zx_sils.grad(i);
// start new line strip if needed:
if ( vis ) {
//we are in a visible section of the curve
if (!started ) {
if ( zx_sils.face(i) ) {
glBegin(GL_LINE_STRIP);
zx_sils.face(i)->bc2pos ( zx_sils.bc(i) , wp );
glVertex3dv( wp.data());
started = true;
}
} else {
if ( zx_sils.face(i) && i < n-1 ) {
zx_sils.face(i)->bc2pos ( zx_sils.bc(i) , wp );
glVertex3dv( wp.data());
} else {
zx_sils.face(i-1)->bc2pos ( zx_sils.bc(i) , wp );
glVertex3dv( wp.data());
glEnd();
started = false;
}
}
} else if ( lvis && started ) {
//this point is not visible, but the last one was.
zx_sils.face(i-1)->bc2pos ( zx_sils.bc(i-1) , wp );
glVertex3dv( wp.data());
glEnd();
started=false;
}
lvis = vis;
//if the face was null, we started a new loop
if ( !zx_sils.face(i) ) {
if (!nocolor)
glColor3d ( drand48(), drand48(), drand48() );
else
glColor3d ( 0.0, 0.0, 0.0);
}
}
} else { //draw using barycentric values
Wpt first;
for (int i=0; i < n; i++) {
vis = true;
if ( vis ) {
//we are in a visible section of the curve
if (!started ) {
if ( zx_sils.face(i) ) {
glBegin(GL_LINE_STRIP);
zx_sils.face(i)->bc2pos ( zx_sils.bc(i) , wp );
if (!nocolor) {
if ( !zx_sils.grad(i) )
glColor3d( 1.0, 0.0 ,0.0 );
else
glColor3d( 0.0 , 0.0, 1.0 );
} else {
glColor3d( 0.0 , 0.0, 0.0 );
}
first = wp;
glVertex3dv( wp.data());
started = true;
}
} else {
if (!nocolor) {
if ( !zx_sils.grad(i) )
glColor3d( 1.0, 0.0 ,0.0 );
else
glColor3d( 0.0 , 0.0, 1.0 );
} else
glColor3d( 0.0 , 0.0, 0.0 );
if ( zx_sils.face(i) && i < n-1 ) {
zx_sils.face(i)->bc2pos ( zx_sils.bc(i) , wp );
glVertex3dv( zx_sils.point(i).data());
} else {
zx_sils.face(i-1)->bc2pos ( zx_sils.bc(i) , wp );
glVertex3dv( zx_sils.point(i-1).data());
if (closed)
glVertex3dv( first.data());
glEnd();
started = false;
}
}
} else if ( lvis && started ) {
//this point is not visible, but the last one was.
zx_sils.face(i-1)->bc2pos ( zx_sils.bc(i-1) , wp );
glVertex3dv( zx_sils.point(i-1).data());
glEnd();
started=false;
}
lvis = vis;
}
}
// Restore GL state:
if (antialias)
GL_VIEW::end_line_smooth();
else
glPopAttrib();
return 1;
}
