static bool draw_traced_ray_recurs(Renderer renderer, TracedRay ray, double lost_len,
Element ref_, bool hit_image, int D, bool draw_lost)
{
Transform3 t1 = ray.get_creator().get_transform_to(ref_);
Element i_element = null;
Vector3 v0 = t1.transform(ray.get_ray().origin());
Vector3 v1;
if (ray.is_lost())
{
if (!draw_lost)
{
return(false);
}
v1 = t1.transform(ray.get_ray().origin().plus(ray.get_ray().direction().times(lost_len)));
}
else
{
i_element = ray.get_intercept_element();
Transform3 t2 = i_element.get_transform_to(ref_);
v1 = t2.transform(ray.get_intercept_point());
}
Vector3Pair p = new Vector3Pair(v0, v1);
bool done = false;
for (TracedRay child_ray = ray.get_first_child(); child_ray != null; child_ray = child_ray.get_next_child())
{
if (draw_traced_ray_recurs(renderer, child_ray, lost_len, ref_, hit_image, 2, false))
{
done = true;
}
}
if (!done && hit_image && !(i_element is Image))
{
return(false);
}
switch (D)
{
case 2:
// skip non tangential rays in 2d mode
if (Math.Abs(p.x1()) > 1e-6)
{
return(false);
}
draw_ray_line(renderer, new Vector2Pair(p.v0.project_zy(), p.v1.project_zy()), ray);
break;
case 3:
draw_ray_line(renderer, p, ray);
break;
}
return(true);
}
void draw_2d_e(Renderer r, Stop stop, Element ref_)
{
Vector3 mr = new Vector3(0, stop.get_external_radius(), 0);
Vector3 top = new Vector3(0, stop.get_shape().get_outter_radius(Vector2.vector2_01), 0);
Vector3 bot = new Vector3(0, -stop.get_shape().get_outter_radius(Vector2.vector2_01.negate()),
0);
Transform3 t = stop.get_transform_to(ref_);
Rgb color = r.get_style_color(stop.get_style());
r.group_begin("");
r.draw_segment(t.transform(top), t.transform(mr), color);
r.draw_segment(t.transform(bot), t.transform(mr.negate()), color);
r.group_end();
}
void get_2d_points(Surface surface, Vector2[] array, double start,
double end, Element ref_)
{
int count = array.Length;
double y1 = start;
double step = (end - start) / (count - 1);
int i;
Transform3 t = surface.get_transform_to(ref_);
for (i = 0; i < (int)count; i++)
{
Vector3 v = new Vector3(0.0, y1, 0.0);
v = v.z(surface.get_curve().sagitta(v.project_xy()));
array[i] = t.transform(v).project_zy();
y1 += step;
}
}
public Vector2 projection_ortho(Vector3 v)
{
return(_cam_transform.transform(v).project_xy());
}