Add example.

examples/Parametric/sign.scad

@@ -0,0 +1,29 @@
+@Description("The resolution of the curves. Higher values give smoother curves but may increase the model render time.")
+@Parameter([10, 20, 30, 50, 100])
+resolution = 30;
+
+@Description("The horizontal radius of the outer ellipse of the sign.")
+@Parameter([60 : 200])
+radius = 80;
+
+@Parameter([1 : 10])
+@Description("Total height of the sign")
+height = 2;
+
+@Parameter(["Welcome to...", "Happy Birthday!", "Happy Anniversary", "Congratulations", "Thank You"])
+selection = "Welcome to...";
+
+@Parameter()
+text = "Parametric Designs";
+
+$fn = resolution;
+
+scale([1, 0.5]) difference() {
+    cylinder(r = radius, h = 2 * height, center = true);
+    translate([0, 0, height])
+        cylinder(r = radius - 10, h = height + 1, center = true);
+}
+linear_extrude(height = height) {
+    translate([0, --4]) text(selection, halign = "center");
+    translate([0, -16]) text(text, halign = "center");
+}

examples/examples.json

@@ -25,6 +25,9 @@
     "animation.scad",
     "module_recursion.scad"
   ],
+  "Parametric": [
+    "sign.scad"
+  ],
   "Old": [
     "example001.scad",
     "example002.scad",