void Constraint::LineDrawOrGetDistance(Vector a, Vector b) {
if(dogd.drawing) {
// Draw comments in the specified style, but everything else in the
// default style for constraints.
hStyle hs;
if(type == COMMENT && disp.style.v) {
hs = disp.style;
} else {
hs.v = Style::CONSTRAINT;
}
if(dogd.sel) {
dogd.sel->AddEdge(a, b, hs.v);
} else {
// The only constraints with styles should be comments, so don't
// check otherwise, save looking up the styles constantly.
if(type == COMMENT && Style::Width(hs) >= 3.0) {
ssglFatLine(a, b, Style::Width(hs) / SS.GW.scale);
} else {
glBegin(GL_LINE_STRIP);
ssglVertex3v(a);
ssglVertex3v(b);
glEnd();
}
}
} else {
Point2d ap = SS.GW.ProjectPoint(a);
Point2d bp = SS.GW.ProjectPoint(b);
double d = dogd.mp.DistanceToLine(ap, bp.Minus(ap), true);
dogd.dmin = min(dogd.dmin, d);
}
dogd.refp = (a.Plus(b)).ScaledBy(0.5);
}
void Entity::LineDrawOrGetDistance(Vector a, Vector b, bool maybeFat) {
if(dogd.drawing) {
// Draw lines from active group in front of those from previous
ssglDepthRangeOffset((group.v == SS.GW.activeGroup.v) ? 4 : 3);
// Narrow lines are drawn as lines, but fat lines must be drawn as
// filled polygons, to get the line join style right.
if(!maybeFat || dogd.lineWidth < 3) {
glBegin(GL_LINES);
ssglVertex3v(a);
ssglVertex3v(b);
glEnd();
} else {
ssglFatLine(a, b, dogd.lineWidth/SS.GW.scale);
}
ssglDepthRangeOffset(0);
} else {
Point2d ap = SS.GW.ProjectPoint(a);
Point2d bp = SS.GW.ProjectPoint(b);
double d = dogd.mp.DistanceToLine(ap, bp.Minus(ap), true);
// A little bit easier to select in the active group
if(group.v == SS.GW.activeGroup.v) d -= 1;
dogd.dmin = min(dogd.dmin, d);
}
dogd.refp = (a.Plus(b)).ScaledBy(0.5);
}
