[orx-shapes] Refactor package layout

orx-shapes/src/jvmDemo/kotlin/bezierpatch/DemoBezierPatch02.kt

@@ -0,0 +1,39 @@
+package bezierpatch
+
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.extra.shapes.bezierpatches.bezierPatch
+import org.openrndr.shape.Circle
+import org.openrndr.shape.ShapeContour
+
+/**
+ * Shows how to create a [bezierPatch] out of a
+ * closed [ShapeContour] with 4 curved segments.
+ *
+ * Calling [Circle.contour] is one way of producing
+ * such a contour with vertices at the cardinal points
+ * but one can manually create any other 4-segment closed contour
+ * to use in bezier patches.
+ */
+fun main() {
+    application {
+        configure {
+            width = 800
+            height = 800
+        }
+        program {
+            val c = Circle(width / 2.0, height / 2.0, 350.0).contour
+            val bp = bezierPatch(c)
+
+            extend {
+                drawer.clear(ColorRGBa.PINK)
+                drawer.stroke = ColorRGBa.BLACK
+
+                for (i in 0..10) {
+                    drawer.contour(bp.horizontal(i / 10.0))
+                    drawer.contour(bp.vertical(i / 10.0))
+                }
+            }
+        }
+    }
+}