From e9fcf5fd1d3ff5d31afff25d68eec10501c9d168 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 23 Feb 2014 13:18:15 +0000
Subject: [PATCH] Revert "wardrobe-hook: frontbackly version: wip assing()ish,
 before revert"

This reverts commit c1b245c859354fbb1d1da483babb82f8674d2d41.
---
 wardrobe-hook.scad | 74 ++++++++++++++++------------------------------
 1 file changed, 25 insertions(+), 49 deletions(-)

diff --git a/wardrobe-hook.scad b/wardrobe-hook.scad
index 7e26976..2636947 100644
--- a/wardrobe-hook.scad
+++ b/wardrobe-hook.scad
@@ -33,7 +33,7 @@ mainthick = 4;
 clipthick = 2;
 clipang = 135;
 
-$stemlen = 40;
+stemlen = 40;
 
 topwidth = 20;
 
@@ -42,55 +42,39 @@ hookcurl = 60;
 hookwidth = 4;
 
 tuberad = tubewidth/2;
+bend = atan(tuberad/stemlen);
 mainoutrad = tuberad + mainthick;
 hookoutrad = hookinrad + hookwidth;
-$hookcy = -($stemlen - hookoutrad);
+hookcy = -(stemlen - hookoutrad);
 
-$eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 0.1];
-$elmid = [topwidth/2, -tuberad];
-$ellow = tangent_intersect_b([0,$hookcy], hookinrad, $elmid);
-$ellowextra = 180 - tangent_intersect_beta([0,$hookcy], hookinrad, $elmid);
-
-$bend = 0;
-
-module Howly(acrossly_x, frontbackly_x){
-  if (acrossly_x >= 0) {
-    translate([acrossly_x,0,0])
-      assign($bend = atan(tuberad/$stemlen),
-	     $frontbackly = 0)
-      child();
-  }
-  if (frontbackly_x >= 0) {
-    translate([frontbackly_x,0,0])
-      assign($bend = 0,
-	     $frontbackly = 1)
-      child();
-  }
-}
+eltop = [topwidth/2, -tuberad + tubeheight + mainthick + 0.1];
+elmid = [topwidth/2, -tuberad];
+ellow = tangent_intersect_b([0,hookcy], hookinrad, elmid);
+ellowextra = 180 - tangent_intersect_beta([0,hookcy], hookinrad, elmid);
 
 module Plan(){
   dy = tubeheight - tuberad*2;
   FArcSegment(0, dy, tuberad, mainoutrad, -1, 181);
-  FArcSegment(0, 0,  tuberad, mainoutrad, -$bend, $bend+1);
+  FArcSegment(0, 0,  tuberad, mainoutrad, -bend, bend+1);
   translate([tuberad, 0]) square(center=false, size=[mainthick,dy]);
   FArcSegment(0, 0, tuberad, tuberad + clipthick, 360-clipang, clipang+1);
-  rotate(-$bend) translate([tuberad, 0]) mirror([0,1])
-    square(center=false, size=[mainthick, $stemlen/cos($bend)]);
+  rotate(-bend) translate([tuberad, 0]) mirror([0,1])
+    square(center=false, size=[mainthick, stemlen/cos(bend)]);
 }
 
 module ElevationCore(){
-  FArcSegment(0, $hookcy, hookinrad, hookoutrad,
-	      180 - $ellowextra,
-	      90 + hookcurl + $ellowextra);
+  FArcSegment(0, hookcy, hookinrad, hookoutrad,
+	      180 - ellowextra,
+	      90 + hookcurl + ellowextra);
   translate([-hookoutrad*sqrt(0.5),
-	      $hookcy - hookoutrad*sqrt(0.5) + 0.1])
+	      hookcy - hookoutrad*sqrt(0.5) + 0.1])
     mirror([1,0])
-    square(center=false, size=[topwidth, $stemlen + tubeheight + 20]);
-  polygon([[-hookoutrad, $ellow[1]],
-	   reflect_in_y($eltop),
-	   $eltop,
-	   $elmid,
-	   $ellow]);
+    square(center=false, size=[topwidth, stemlen + tubeheight + 20]);
+  polygon([[-hookoutrad, ellow[1]],
+	   reflect_in_y(eltop),
+	   eltop,
+	   elmid,
+	   ellow]);
 }
 
 // after here is all 3D
@@ -110,13 +94,13 @@ module PlaneAbove(){
   translate([-100,-100,0]) cube(center=false,size=[200,200,200]);
 }
 
-taperangle = -270 + tangent_intersect_beta([-$hookcy, 0],
+taperangle = -270 + tangent_intersect_beta([-hookcy, 0],
 					  hookoutrad,
-					  [-$eltop[1], -$eltop[0]]);
+					  [-eltop[1], -eltop[0]]);
 module Hook(){ ////toplevel
   difference(){
     rotate([taperangle,0,0])
-      translate([0,-$eltop[1],0])
+      translate([0,-eltop[1],0])
       Primary();
     translate([0,0,topwidth/2])
       rotate([taperangle*2,0,0])
@@ -130,13 +114,5 @@ module RightHook(){ ////toplevel
   mirror([1,0,0]) Hook();
 }
 
-module Bothly() {
-  Acrossly() child(0);
-  translate([70,0,0]) Frontbackly() child(0);
-}
-
-Howly(0,70) {
-  Plan();
-  //ElevationCore();
-  //RightHook();
-}
+//ElevationCore();
+RightHook();
-- 
2.30.2