Bump to OPENRNDR 0.3.44-rc.7, add intersection demos

2020-07-29 12:01:23 +02:00
parent dd9a0b351a
commit 6060ebffcd
4 changed files with 111 additions and 1 deletions
--- a/openrndr-demos/src/demo/kotlin/DemoContourIntersections03.kt
+++ b/openrndr-demos/src/demo/kotlin/DemoContourIntersections03.kt
@@ -0,0 +1,32 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.math.Vector2
+import org.openrndr.shape.ShapeContour
+import org.openrndr.shape.intersections
+import kotlin.math.PI
+import kotlin.math.cos
+import kotlin.math.sin
+
+fun main() = application {
+    program {
+        val contour = ShapeContour.fromPoints(
+                List(80) {
+                    val a = PI * 2 * it / 80.0
+                    val x = 200.0 * sin(a * 2)
+                    val y = 200.0 * cos(a)
+                    Vector2(x, y)
+                }, closed = true
+        )
+        val ints = intersections(contour, contour)
+        extend {
+            drawer.run {
+                clear(ColorRGBa.WHITE)
+                translate(width * 0.5, height * 0.5)
+                fill = null
+                stroke = ColorRGBa.BLACK
+                contour(contour)
+                circles(ints.map { it.position }, 10.0)
+            }
+        }
+    }
+}