Package com.amalgamasimulation.graphicaleditor.renderers

Class GroupShapeRenderer

java.lang.Object
com.amalgamasimulation.graphicaleditor.renderers.GroupShapeRenderer
public class GroupShapeRenderer extends Object
A tile-based renderer for efficiently processing and rendering GroupShape objects.

  • Constructor Summary

    Constructors
    Constructor
    Description
    GroupShapeRenderer()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    clear()
    Clears all currently loaded shape data from the renderer.
    double[]
    getImageTileModelBounds()
    Union of visible bitmap tile bounds in model space ([minX, minY, maxX, maxY]), or null when no visible tiles are loaded.
    Set<Point>
    getSiblingsPoints(double x, double y)
    Retrieves all distinct endpoints of line segments located in the tile containing the specified point and its eight neighboring tiles.
    void
    renderVisibleTiles(javafx.scene.canvas.GraphicsContext gc, double viewportMinX, double viewportMinY, double viewportWidth, double viewportHeight, double zoom, double canvasHeight, double rulerOffset)
    Renders all visible shapes within the specified viewport.
    void
    setGroupShape(com.amalgamasimulation.animation.shapes.shapes2d.GroupShape groupShape)
    Loads a GroupShape into the renderer for processing and rendering.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • GroupShapeRenderer

      public GroupShapeRenderer()

  • Method Details

    • clear

      public void clear()
      Clears all currently loaded shape data from the renderer.

    • getImageTileModelBounds

      public double[] getImageTileModelBounds()
      Union of visible bitmap tile bounds in model space ([minX, minY, maxX, maxY]), or null when no visible tiles are loaded. Y increases north (editor viewport).

    • setGroupShape

      public void setGroupShape(com.amalgamasimulation.animation.shapes.shapes2d.GroupShape groupShape)
      Loads a GroupShape into the renderer for processing and rendering.

    • getSiblingsPoints

      public Set<Point> getSiblingsPoints(double x, double y)
      Retrieves all distinct endpoints of line segments located in the tile containing the specified point and its eight neighboring tiles.

    • renderVisibleTiles

      public void renderVisibleTiles(javafx.scene.canvas.GraphicsContext gc, double viewportMinX, double viewportMinY, double viewportWidth, double viewportHeight, double zoom, double canvasHeight, double rulerOffset)
      Renders all visible shapes within the specified viewport.
      Parameters:
      gc - the graphics context to render onto
      viewportMinX - the minimum X coordinate of the visible area in model space
      viewportMinY - the minimum Y coordinate of the visible area in model space
      viewportWidth - the width of the visible area in model units
      viewportHeight - the height of the visible area in model units
      zoom - the current zoom factor (pixels per model unit)
      canvasHeight - the height of the canvas in pixels (for Y inversion)
      rulerOffset - the horizontal offset for ruler alignment in pixels