Fixed errors in ruler(). Moved trace_polyline() to debug.scad.

paths.scad

@@ -847,110 +847,6 @@ module path_extrude(path, convexity=10, clipsize=100) {
 }
 
 
-// Module: trace_polyline()
-// Description:
-//   Renders lines between each point of a polyline path.
-//   Can also optionally show the individual vertex points.
-// Arguments:
-//   pline = The array of points in the polyline.
-//   closed = If true, draw the segment from the last vertex to the first.  Default: false
-//   showpts = If true, draw vertices and control points.
-//   N = Mark the first and every Nth vertex after in a different color and shape.
-//   size = Diameter of the lines drawn.
-//   color = Color to draw the lines (but not vertices) in.
-// Example(FlatSpin):
-//   polyline = [for (a=[0:30:210]) 10*[cos(a), sin(a), sin(a)]];
-//   trace_polyline(polyline, showpts=true, size=0.5, color="lightgreen");
-module trace_polyline(pline, closed=false, showpts=false, N=1, size=1, color="yellow") {
-        assert(is_path(pline),"Input pline is not a path");
-	sides = segs(size/2);
-	pline = closed? close_path(pline) : pline;
-	if (showpts) {
-		for (i = [0:1:len(pline)-1]) {
-			translate(pline[i]) {
-				if (i%N == 0) {
-					color("blue") sphere(d=size*2.5, $fn=8);
-				} else {
-					color("red") {
-						cylinder(d=size/2, h=size*3, center=true, $fn=8);
-						xrot(90) cylinder(d=size/2, h=size*3, center=true, $fn=8);
-						yrot(90) cylinder(d=size/2, h=size*3, center=true, $fn=8);
-					}
-				}
-			}
-		}
-	}
-	if (N!=3) {
-		color(color) path_sweep(circle(d=size,$fn=sides), path3d(pline));
-	} else {
-		for (i = [0:1:len(pline)-2]) {
-			if (N!=3 || (i%N) != 1) {
-				color(color) extrude_from_to(pline[i], pline[i+1]) circle(d=size, $fn=sides);
-			}
-		}
-	}
-}
-
-
-// Module: debug_polygon()
-// Description: A drop-in replacement for `polygon()` that renders and labels the path points.
-// Arguments:
-//   points = The array of 2D polygon vertices.
-//   paths = The path connections between the vertices.
-//   convexity = The max number of walls a ray can pass through the given polygon paths.
-// Example(Big2D):
-//   debug_polygon(
-//       points=concat(
-//           regular_ngon(or=10, n=8),
-//           regular_ngon(or=8, n=8)
-//       ),
-//       paths=[
-//           [for (i=[0:7]) i],
-//           [for (i=[15:-1:8]) i]
-//       ]
-//   );
-module debug_polygon(points, paths=undef, convexity=2, size=1)
-{
-	pths = is_undef(paths)? [for (i=[0:1:len(points)-1]) i] : is_num(paths[0])? [paths] : paths;
-	echo(points=points);
-	echo(paths=paths);
-	linear_extrude(height=0.01, convexity=convexity, center=true) {
-		polygon(points=points, paths=paths, convexity=convexity);
-	}
-	for (i = [0:1:len(points)-1]) {
-		color("red") {
-			up(0.2) {
-				translate(points[i]) {
-					linear_extrude(height=0.1, convexity=10, center=true) {
-						text(text=str(i), size=size, halign="center", valign="center");
-					}
-				}
-			}
-		}
-	}
-	for (j = [0:1:len(paths)-1]) {
-		path = paths[j];
-		translate(points[path[0]]) {
-			color("cyan") up(0.1) cylinder(d=size*1.5, h=0.01, center=false, $fn=12);
-		}
-		translate(points[path[len(path)-1]]) {
-			color("pink") up(0.11) cylinder(d=size*1.5, h=0.01, center=false, $fn=4);
-		}
-		for (i = [0:1:len(path)-1]) {
-			midpt = (points[path[i]] + points[path[(i+1)%len(path)]])/2;
-			color("blue") {
-				up(0.2) {
-					translate(midpt) {
-						linear_extrude(height=0.1, convexity=10, center=true) {
-							text(text=str(chr(65+j),i), size=size/2, halign="center", valign="center");
-						}
-					}
-				}
-			}
-		}
-	}
-}
-
 // Module: path_spread()
 //
 // Description: