org.simantics.district.network.ui/src/org/simantics/district/network/ui/nodes/DistrictNetworkNodeUtils.java

   1 package org.simantics.district.network.ui.nodes;
   2
   3 import java.awt.geom.AffineTransform;
   4 import java.awt.geom.Point2D;
   5 import java.awt.geom.Rectangle2D;
   6
   7 import org.simantics.district.network.ModelledCRS;
   8 import org.simantics.maps.MapScalingTransform;
   9 import org.simantics.scenegraph.utils.GeometryUtils;
  10
  11 public class DistrictNetworkNodeUtils {
  12
  13     public static Rectangle2D calculateDrawnGeometry(Point2D p, Rectangle2D margin, Rectangle2D result, double scaleRecip) {
  14         if (result == null)
  15             result = new Rectangle2D.Double();
  16         double mw = margin.getWidth();
  17         double mh = margin.getHeight();
  18         result.setFrame(p.getX() - (mw / 2 * scaleRecip), p.getY() - (mh / 2 * scaleRecip), mw * scaleRecip, mh * scaleRecip);
  19         return result;
  20     }
  21
  22     public static Point2D calculatePoint2D(Point2D point, Point2D result) {
  23         double x = ModelledCRS.longitudeToX(point.getX());
  24         double y = ModelledCRS.latitudeToY(-point.getY()); // Inverse because Simantics Diagram is inverted
  25         if (result == null)
  26             result = new Point2D.Double(x, y);
  27         else
  28             result.setLocation(x, y);
  29         return result;
  30     }
  31
  32     public static AffineTransform getTransformToRectangle(Rectangle2D toDraw, AffineTransform transform) {
  33         if (transform == null)
  34             transform = new AffineTransform();
  35
  36         transform.setTransform(toDraw.getWidth(), 0.0, 0.0, toDraw.getHeight(), toDraw.getCenterX(), toDraw.getCenterY());
  37         return transform;
  38     }
  39
  40     public static double calculateScaleRecip(AffineTransform tr) {
  41         int zoomLevel = MapScalingTransform.zoomLevel(tr);
  42         return 1.0 / (getScale(tr) * Math.sqrt(zoomLevel));
  43     }
  44
  45     static double getScale(AffineTransform tr) {
  46         double scale;
  47         scale = GeometryUtils.getScale(tr);
  48         scale = Math.max(4096, scale); //Math.min(scale, 32768));
  49         return scale;
  50     }
  51 }