[orx-shapes] Refactor package layout

2024-01-23 09:38:43 +01:00
parent 78ba51ca85
commit 8fbb106823
54 changed files with 138 additions and 91 deletions
--- a/orx-shapes/src/jvmDemo/kotlin/bezierpatch/DemoBezierPatch05.kt
+++ b/orx-shapes/src/jvmDemo/kotlin/bezierpatch/DemoBezierPatch05.kt
@@ -0,0 +1,74 @@
+package bezierpatch
+
+import org.openrndr.WindowMultisample
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.extra.shapes.bezierpatches.bezierPatch
+import org.openrndr.extra.camera.Orbital
+import org.openrndr.math.Vector3
+import org.openrndr.shape.Segment3D
+
+/**
+ * Shows how to
+ * - create a [bezierPatch] out of 4 [Segment3D]
+ * - create a sub-patch out of a [bezierPatch]
+ * - create horizontal and vertical [Path3D]s out of [bezierPatch]es
+ * - add colors to a [bezierPatch]
+ * - draw a [bezierPatch] surface
+ *
+ * The created contours are horizontal and vertical in "bezier-patch space" but
+ * are rendered deformed following the shape of the bezier patch.
+ */
+fun main() {
+    application {
+        configure {
+            width = 800
+            height = 800
+            multisample = WindowMultisample.SampleCount(8)
+        }
+        program {
+            val c0 = Segment3D(Vector3(-5.0, 0.0, -9.0), Vector3(5.0, 0.0, -9.0))
+            val c1 = Segment3D(Vector3(-5.0, -5.0, -3.0), Vector3(5.0, -5.0, -3.0))
+            val c2 = Segment3D(Vector3(-5.0, 5.0, 3.0), Vector3(5.0, 5.0, 3.0))
+            val c3 = Segment3D(Vector3(-5.0, 0.0, 9.0), Vector3(5.0, 0.0, 9.0))
+
+            val col = listOf(ColorRGBa.PINK, ColorRGBa.RED, ColorRGBa.BLUE, ColorRGBa.PINK)
+            val cols = listOf(col, col, col, col)
+            val bp = bezierPatch(c0, c1, c2, c3).withColors(cols)
+            val bpSub = bp.sub(0.1, 0.1, 0.6, 0.6)
+
+            val cam = Orbital()
+            extend(cam){
+                eye = Vector3(x=9.9, y=12.8, z=6.9)
+                lookAt = Vector3(x=1.6, y=-1.9, z=1.2)
+            }
+
+            extend {
+                drawer.clear(ColorRGBa.PINK)
+
+                drawer.translate(-5.0, 0.0, 0.0)
+                // Show the segments that form the bezier patch
+                drawer.stroke = ColorRGBa.YELLOW
+                drawer.strokeWeight = 50.0
+                drawer.segments(listOf(c0, c1, c2, c3))
+
+                // Show the grid
+                drawer.strokeWeight = 1.0
+                val n = 10
+                for (i in 0..n) {
+                    drawer.stroke = ColorRGBa.BLACK
+                    drawer.lineStrip(bp.horizontal(i / n.toDouble()).adaptivePositions(0.01))
+                    drawer.lineStrip(bp.vertical(i / n.toDouble()).adaptivePositions(0.01))
+
+                    drawer.stroke = ColorRGBa.RED
+                    drawer.lineStrip(bpSub.horizontal(i / n.toDouble()).adaptivePositions(0.01))
+                    drawer.lineStrip(bpSub.vertical(i / n.toDouble()).adaptivePositions(0.01))
+                }
+
+                // Draw the colored Bezier surface
+                drawer.translate(10.0, 0.0, 0.0)
+                drawer.bezierPatch(bp)
+            }
+        }
+    }
+}