[orx-marching-squares] Add orx-marching-squares module

2023-02-02 18:24:07 +01:00
parent 4422f114ba
commit 5038fd0fc3
9 changed files with 265 additions and 0 deletions
--- a/orx-marching-squares/src/jvmDemo/kotlin/FindContours03.kt
+++ b/orx-marching-squares/src/jvmDemo/kotlin/FindContours03.kt
@@ -0,0 +1,30 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.extra.marchingsquares.findContours
+import org.openrndr.math.Vector2
+import kotlin.math.PI
+import kotlin.math.cos
+import kotlin.math.sin
+
+fun main() {
+    application {
+        configure {
+            width = 720
+            height = 720
+        }
+        program {
+            extend {
+                drawer.clear(ColorRGBa.BLACK)
+                drawer.stroke = ColorRGBa.PINK
+                fun f(v: Vector2): Double {
+
+                    val p = v + Vector2(cos(v.y * 0.1 + seconds) * 40.0, sin(v.x * 0.1 + seconds) * 40.0)
+                    return cos((p.distanceTo(drawer.bounds.center) / 720.0) * 6 * PI)
+                }
+
+                val segments = findContours(::f, drawer.bounds.offsetEdges(32.0), 4.0)
+                drawer.lineSegments(segments)
+            }
+        }
+    }
+}