import org.openrndr.application import org.openrndr.color.ColorRGBa import org.openrndr.draw.rectangleBatch import org.openrndr.extensions.SingleScreenshot import org.openrndr.extra.noise.Random import org.openrndr.extra.noise.gaussian import org.openrndr.math.Vector2 import org.openrndr.shape.Rectangle import org.openrndr.extra.quadtree.Quadtree fun main() { application { configure { width = 800 height = 800 title = "QuadTree" } program { val box = Rectangle.fromCenter(Vector2(400.0), 750.0) val points = (0 until 1_000).map { Vector2.gaussian(box.center, Vector2(95.0), Random.rnd) } val quadTree = Quadtree(box) { it } for (point in points) { quadTree.insert(point) } val batch = drawer.rectangleBatch { this.fill = null this.stroke = ColorRGBa.GRAY this.strokeWeight = 0.5 quadTree.batch(this) } extend { drawer.clear(ColorRGBa.BLACK) drawer.rectangles(batch) drawer.fill = ColorRGBa.PINK.opacify(0.7) drawer.stroke = null drawer.circles(points, 5.0) } } } }