further work on rack-mount refactor

rack-mount/enclosed-box/animate.scad

@@ -0,0 +1,21 @@
+use <./entry.scad>
+
+$vpt = [120,-30,63];
+$vpr = [74,0,25];
+$vpd = 550;
+$vpf = 22.50;
+
+animateEnclosedBoxSystem(at=$t);
+
+module animateEnclosedBoxSystem(at=$t) {
+
+  zOrientation = "middle";
+  x=150;
+  y=70;
+  z=20;
+  dx = abs(lerp(a=-20, b=20, t=at));
+  dy = abs(lerp(a=-50, b=50, t=at));
+  dz = abs(lerp(a=-15, b=15, t=at));
+
+  enclosedBoxSystem(visualize=true, zOrientation=zOrientation, boxWidth=x+dx, boxDepth=y+dy, boxHeight=z+dz);
+}