int
INFLATE::stroke_cb(CGESTUREptr& gest, DrawState*& s)
{
err_adv(debug, "INFLATE::stroke_cb");
reset_timeout();
// Verify that we have a starting face
if ( _orig_face ) {
Bface* face = 0;
// Check that the stroke is straight enough to represent a line
if (!(gest->straightness() > 0.8)) {
err_adv(debug, "INFLATE::stroke_cb: gesture not straight");
return false;
}
// Check that the gesture starts on the mesh
Bsurface::hit_ctrl_surface(gest->start(), 1, &face);
if (!(face)) {
err_adv(debug, "INFLATE::stroke_cb: can't get hit face");
return false;
}
// create VEXELs for the gesture and the face normal
VEXEL fvec = VEXEL(face->v1()->loc(), face->norm());
VEXEL fgest = gest->endpt_vec();
// If gesture nearly parallel to normal:
double a = rad2deg(line_angle(fvec,fgest));
err_adv(debug, "INFLATE::stroke_cb: angle: %f %s",
a, (a > 15) ? "(bad)" : "(good)");
if (a > 15) {
// Fail if angle is too extreme
WORLD::message("Bad angle");
return 0;
}
// calculate extrude width
double dist = fgest.length()/fvec.length();
err_adv(debug, "INFLATE::stroke_cb: strong_edge_len: %f, gest_len: %f, \
fvect_len: %f", avg_strong_edge_len(face), fgest.length(), fvec.length() );
// Convert to relative to local edge length
dist /= avg_strong_edge_len(face);
if (fvec*fgest<0)
dist=-dist; // Get the sign right
// Store the new inflate distance
_preview_dist = dist;
}
return 1; // we used up the gesture...
}
int
INFLATE::line_cb(CGESTUREptr& gest, DrawState*& s)
{
// Activity occurred to extend the deadline for fading away:
reset_timeout();
err_adv(debug, "INFLATE::line_cb");
// Verify that we have a starting face
if ( _orig_face ) {
// Check that the stroke is straight enough to represent a line
Bface* face = 0;
if (!(gest->straightness() > 0.8)) {
err_adv(debug, "INFLATE::line_cb: gesture not straight");
return false;
}
// Check that the gesture starts on the mesh
Bsurface::hit_ctrl_surface(gest->start(), 1, &face);
if (!(face)) {
err_adv(debug, "INFLATE::line_cb: can't get hit face");
return false;
}
// create VEXELs for the gesture and the face normal
VEXEL fvec = VEXEL(face->v1()->loc(), face->norm());
VEXEL fgest = gest->endpt_vec();
// If gesture nearly parallel to normal:
double a = rad2deg(line_angle(fvec,fgest));
err_adv(debug, "INFLATE::line_cb: angle: %f %s",
a, (a > 15) ? "(bad)" : "(good)");
if (a > 15) {
return false;
}
// calculate extrude width
double dist = fgest.length()/fvec.length();
if (fvec*fgest<0)
dist=-dist; // Get the sign right
_preview_dist = dist;
}
// get here if nothing happened...
// don't cancel (which would deactivate the widget),
// just return 1 to indicate that we used up the gesture:
return 1;
}
