[orx-shapes] Add BezierPatch

2020-10-12 10:14:59 +02:00
parent dc3027902d
commit e7579a79f5
4 changed files with 306 additions and 0 deletions
--- a/orx-shapes/src/demo/kotlin/DemoBezierPatch01.kt
+++ b/orx-shapes/src/demo/kotlin/DemoBezierPatch01.kt
@@ -0,0 +1,40 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.extensions.SingleScreenshot
+import org.openrndr.extra.shapes.bezierPatch
+import org.openrndr.shape.LineSegment
+
+fun main() {
+    application {
+        configure {
+            width = 800
+            height = 800
+        }
+        program {
+            if (System.getProperty("takeScreenshot") == "true") {
+                extend(SingleScreenshot()) {
+                    this.outputFile = System.getProperty("screenshotPath")
+                }
+            }
+            extend {
+                drawer.clear(ColorRGBa.PINK)
+                val c0 = LineSegment(200.0, 100.0, width-200.0, 100.0).contour.segments.first()
+                val c1 = LineSegment(100.0, 150.0, width-100.0, 150.0).contour.segments.first()
+                val c2 = LineSegment(100.0, height-150.0, width-100.0, height-150.0).contour.segments.first()
+                val c3 = LineSegment(200.0, height-100.0, width-200.0, height-100.0).contour.segments.first()
+
+
+                val bp = bezierPatch(c0, c1, c2, c3)
+                val bpsub = bp.sub(0.0, 0.0, 0.5, 0.5)
+                for (i in 0..50) {
+                    drawer.stroke = ColorRGBa.BLACK
+                    drawer.contour(bp.horizontal(i/50.0))
+                    drawer.contour(bp.vertical(i/50.0))
+                    drawer.stroke = ColorRGBa.RED
+                    drawer.contour(bpsub.horizontal(i/50.0))
+                    drawer.contour(bpsub.vertical(i/50.0))
+                }
+            }
+        }
+    }
+}