MeshView Shape.subtract

ClothTest1

import org.fxyz.shapes.complex.cloth.ClothMesh
import scalafx.Includes._
import scalafx.application.JFXApp
import scalafx.application.JFXApp.PrimaryStage
import scalafx.scene.image.Image
import scalafx.scene.paint.PhongMaterial
import scalafx.scene.shape._
import scalafx.scene.{Group, PerspectiveCamera, Scene, SceneAntialiasing}
import scalafx.scene.paint.Color
import scalafx.scene.shape.Polygon

object ClothTest1 extends JFXApp {
  stage = new PrimaryStage {
    scene = new Scene(600, 600, true, SceneAntialiasing.Balanced) {
      fill = Color.LightGray
      val rose = "https://upload.wikimedia.org/wikipedia/commons/thumb/9/9b/Redoute_-_Rosa_gallica_purpuro-violacea_magna.jpg/800px-Redoute_-_Rosa_gallica_purpuro-violacea_magna.jpg"
      val img = new Image(rose, 400, 400, false, true)
      val meshView = new ClothMesh(4, 4, 400, 400)
      meshView.setDrawMode(DrawMode.Fill)
      meshView.setCullFace(CullFace.None)
      meshView.setStyle("-fx-background-color: #00000000") // transparent
      meshView.setWidth(img.width.value)
      meshView.setHeight(img.height.value)
      meshView.setMaterial(new PhongMaterial(Color.White, img, null, null, null))
      // not correct, should be the outer boundary polygon of the mesh, but how to get that
      val poly = new Polygon { meshView.getPoints.foreach(c => points += c.toDouble) }
      val clipCircle = new Circle() {
        radius = meshView.getWidth * 0.4
        fill = Color.Transparent
      }
      val stencil = Shape.subtract(poly, clipCircle)
      root = new Group(meshView, stencil) {
        translateX = 250
        translateY = 250
      }
      camera = new PerspectiveCamera(false)
    }
  }
}