utils: oval: Adjust variable name to be like ellipse

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/diziet-utils/utils.scad b/diziet-utils/utils.scad
index 58b2be8de8e61dcdadc0608bb77a4281e99196ce..e689069901de4d80dcace9d6f7c077a76a7aafb4 100644 (file)
--- a/diziet-utils/utils.scad
+++ b/diziet-utils/utils.scad
@@ -55,9 +55,9 @@ module ellipse(radii) {
   scale(radii / r)
     circle(r);
 }
-module oval(sz){ // sz[0] > sz[1]
-  xr = sz[0];
-  yr = sz[1];
+module oval(radii){ // radii[0] > radii[1]
+  xr = radii[0];
+  yr = radii[1];
   hull(){
     for (sx=[-1,+1]) {
       translate([sx * (xr-yr), 0])