From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 3 Jun 2017 19:58:29 +0000 (+0100)
Subject: sewing-table: roundcorner variable angle wip
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=commitdiff_plain;h=b827aa24397af374e46f228e15b9f0584e970c95

sewing-table: roundcorner variable angle wip
---

diff --git a/sewing-table.scad.m4 b/sewing-table.scad.m4
index 92c68cb..30a8d1d 100644
--- a/sewing-table.scad.m4
+++ b/sewing-table.scad.m4
@@ -241,14 +241,38 @@ m4_define(`ROUNDCORNER_VARS',`
   this_cnr = ci[0];
   right_cnr = ci[1];
   left_cnr = ci[2];
-  bigr= round_cnr_rad - round_edge_rad
+  bigr= round_cnr_rad - round_edge_rad;
+  l_uvec = unitvector2d(left_cnr - this_cnr);
+  r_uvec = unitvector2d(right_cnr - this_cnr);
+  ctr = line_intersection_2d(
+      left_cnr  - clockwise2d(r_uvec) * round_cnr_rad,
+      this_cnr  - clockwise2d(r_uvec) * round_cnr_rad,
+      this_cnr  + clockwise2d(l_uvec) * round_cnr_rad,
+      right_cnr + clockwise2d(l_uvec) * round_cnr_rad )
 ')
 
 module RoundCorner_selector(ci, adj) {
   ROUNDCORNER_VARS;
-  INREFFRAME(this_cnr, right_cnr) {
-    cube(bigr*2 + adj, center=true);
+  echo("RCS",l_uvec,ctr);
+  union(){
+    INREFFRAME(this_cnr, right_cnr) {
+      cube(bigr*2 + adj, center=true);
+    }
+  }
+  %translate(concat(ctr,[0])) circle(1);
+  if(0){
+  union(){
+    INREFFRAME(this_cnr, right_cnr) {
+//      %translate([ -bigr,-bigr,0 ])
+//	cube([bigr*2 + adj, bigr*3, bigr*2]);
+    }
   }
+  union(){
+    INREFFRAME(this_cnr, left_cnr) {
+      %translate([ -bigr,-bigr,0 ])
+      cube(bigr*2 + adj);
+    }
+  }}
 }
 
 module RoundCornerCut(ci) {
@@ -791,10 +815,11 @@ module RoundCornerDemo_plat(cnr){
 }
 
 module RoundCornerDemo(){ ////toplevel
-  cnr = [ [0,0], [15,0], [-10,10] ];
+  cnr = [ [0,0], [15,0], [-10,12] ];
   translate([0,25,0]) RoundCornerDemo_plat(cnr);
   translate([25,0,0]) RoundCornerAdd(cnr);
   translate([-25,0,0]) RoundCornerCut(cnr);
+  translate([0,-25,0]) RoundCorner_selector(cnr, 0);
   difference(){
     RoundCornerDemo_plat(cnr);
     RoundCornerCut(cnr);