Is the ruby source for rectangle tool or similar available?

[bobdiya]

I've been reading up the ruby source of tools - Construction line , Sphere tool by Jim Foltz and rotate scale tool by thomthom. They have been very helpful in writing my tool.

Also, I have been wondering if there exists a version of ruby source for rectangle tool. The source to this tool will help me figure a lot of things I want to achieve. I searched for it but in vain. Even an older version or something similar would be helpful.

[TIG]

There are several 'rectangle' plugins available, like '3 point rectangle' ...
My own 2Dtools includes a 'rectangle tool' making 4 edges - no face...

The principal is very similar to the line-tool example, instead of picking 2 points, you pick 3.
The 'box' tool also has a potential crib...

Point 1 click = p1 the start of an edge
Point 2 click = p2 the end of that edge
A Vector - vec = p1.vector_to(p2)
Point 3 click - poff - this defines the offset to the opposite side NOT a vertex.
A Line - line = [poff, vec]
Project p1 & p2 to line
p3 = p2.project_to_line(line) p4 = p1.project_to_line(line)

---

Now if you want a face:
face = Sketchup.active_model.active_entities.add_face(p1, p2, p3, p4)
The edges get automatically added.

If you want just edges:
edges = Sketchup.active_model.active_entities.add_edges(p1, p2, p3, p4, p1)
Remember to close the loop by reusing the first point again at the end...

***To get the temporary graphics rubber-banding that is needed in 'draw'... use the initial 2 points as if it's the line-tool, and then after the stare increments... while waiting for the 'poff' click the mouse's cursor-position can be used for calculating the the dynamically changing projected points from those 2, to draw the four sides of the potential rectangle as the cursor moves...