void GLWidget::paintGL()
{
int i;
draw_axes();
draw_disk();
int nticks = 10;
renderText(0.0, 0.0, 0.0, "0");
qglColor( Qt::lightGray );
for (i=0; i<nticks; i++) {
if (i*10.0 < maxb){
renderText(-i*10.0*xs, 0.0, 0.0, QString("%1").arg(i*10.0));
renderText(i*10.0*xs, 0.0, 0.0, QString("%1").arg(i*10.0));
renderText(0.0, -i*10.0*ys, 0.0, QString("%1").arg(i*10.0));
renderText(0.0, i*10.0*ys, 0.0, QString("%1").arg(i*10.0));
renderText(0.0, 0.0, -i*10.0*zs, QString("%1").arg(i*10.0));
renderText(0.0, 0.0, i*10.0*zs, QString("%1").arg(i*10.0));
}
}
if (ex.size()>0 && ey.size()>0 && ez.size()>0 && ei.size()>0){
glBegin(GL_POINTS);
qglColor( blue->toRgb() );
for (i=0; i<ei.size(); i++){
if (ei[i]*15+50 < 300) {
qglColor( blue->darker(50+ei[i]*15));
if (ei[i] == ci || ci == 0)
glVertex3f(ex[i]*xs, ey[i]*ys, ez[i]*zs);
}
}
glEnd();
}
}
void SimpleBody::render_selection() {
#ifdef WANT_GLUT
flo x, y;
glScalef(radius, radius, radius);
if (parent->parent->volume->dimensions()==3) {
glPushMatrix();
glRotatef(90.0, 1.0, 0.0, 0.0);
draw_disk(1);
glPopMatrix();
glPushMatrix();
glRotatef(90.0, 0.0, 1.0, 0.0);
draw_disk(1);
glPopMatrix();
}
draw_disk(1);
#endif // WANT_GLUT
}
static void
draw (GeometryTester *super)
{
PointLineClosestPointTester *self = (PointLineClosestPointTester*) super;
glColor3f (1, 1, 0);
glBegin (GL_LINES);
glVertex2f (self->seg1.x, self->seg1.y);
glVertex2f (self->seg2.x, self->seg2.y);
glEnd ();
// glPushMatrix ();
// glTranslatef (self->seg1.x, self->seg1.y, 0);
// gluDisk (self->quadric, 0, 5, 50, 1);
// glPopMatrix ();
// glPushMatrix ();
// glTranslatef (self->seg2.x, self->seg2.y, 0);
// gluDisk (self->quadric, 0, 5, 50, 1);
// glPopMatrix ();
glColor3f (0, 0.5, 1);
draw_disk (self, self->pt.x, self->pt.y, 5);
glColor3f (1, 0, 1);
point2d_t seg_closest_point;
double u = 0;
geom_point_line_seg_closest_point_2d (&self->pt,
&self->seg1, &self->seg2, &seg_closest_point, &u);
draw_disk (self, seg_closest_point.x, seg_closest_point.y, 5);
vec3d_t a = { self->seg1.x, self->seg1.y, 1 };
vec3d_t b = { self->seg2.x, self->seg2.y, 1 };
vec3d_t c;
geom_vec_cross_3d (&a, &b, &c);
geom_vec_normalize_3d (&c);
vec3d_t p = { self->pt.x, self->pt.y, 1 };
double d = geom_vec_vec_dot_3d (&c, &p);
printf ("%f %f %f\n", d, d*d,
geom_point_point_distance_2d (&self->pt,
&seg_closest_point));
glColor3f (0, 1, 0);
point2d_t line_closest_point;
if (0 != geom_point_line_closest_point_2d (&self->pt,
&self->seg1, &self->seg2, &line_closest_point, NULL)) return;
draw_disk (self, line_closest_point.x, line_closest_point.y, 3);
}
static void
draw (GeometryTester *super)
{
PointPolylineClosestPointTester *self =
(PointPolylineClosestPointTester*) super;
glColor3f (1, 1, 0);
pointlist2d_t *poly1 = pointlist2d_new_from_gqueue (self->poly1);
if (!poly1) return;
glColor3f (0, 1, 0);
draw_disk (self, self->last_mouse_pt.x, self->last_mouse_pt.y, 5);
#if 1
if (poly1->npoints > 1) {
int vals[4];
glGetIntegerv (GL_VIEWPORT, vals);
glBegin (GL_POINTS);
glColor3f (1, 1, 1);
for (int i = 0; i < vals[2]; i++) {
int j;
for (j = 0; j < vals[3]; j++) {
point2d_t pt = { .x = i, .y = j };
int line_ind;
double line_alpha = 0;
geom_point_polyline_closest_point_2d (&pt, poly1, &line_ind,
&line_alpha, NULL);
color_t c = COLORS[line_ind % NUM_COLORS];
// if (line_ind == 0 && line_alpha <= 0) {
// c.r = c.g = c.b = 0;
// } else if (line_ind == poly1->npoints - 2 && line_alpha >= 1) {
// c.r = c.g = c.b = 0;
// }
glColor3f (0.3 * c.r, 0.3 * c.g, 0.3 * c.b);
glVertex2d (pt.x, pt.y);
}
}
glEnd ();
}
