Start setting up helpers for poly gates

poly_gates.scad

@@ -0,0 +1,22 @@
+gate_height = 50;
+
+sq_poly = [
+  [sqrt(2), sqrt(2)],
+  [-sqrt(2), sqrt(2)],
+  [-sqrt(2), -sqrt(2)],
+  [sqrt(2), -sqrt(2)]
+];
+
+function scale_xy_z(m, xy, z) = [ for (i = [0 : len(m) - 1]) [m[i].x * xy, m[i].y * xy, z]];
+
+function throw_end(throw) = gate_height * tan(throw);
+
+function throw_points(shape, throw) = concat([[0,0,0]],scale_xy_z(shape, throw_end(throw), gate_height));
+
+module shape_gate (shape, throw, shaft_r, sharpness = 1) {
+  
+}
+
+//echo(concat([[0,0,0]],scale_xy_z(sq_poly, 3, 3)));
+
+echo(throw_points(sq_poly, 15));