src/main/java/eu/svjatoslav/sixth/e3d/renderer/raster/shapes/composite/wireframe/Grid2D.java

   1 /*
   2  * Sixth 3D engine. Author: Svjatoslav Agejenko.
   3  * This project is released under Creative Commons Zero (CC0) license.
   4  */
   5 package eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.wireframe;
   6
   7 import eu.svjatoslav.sixth.e3d.geometry.Point3D;
   8 import eu.svjatoslav.sixth.e3d.geometry.Rectangle;
   9 import eu.svjatoslav.sixth.e3d.math.Transform;
  10 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.line.LineAppearance;
  11 import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.AbstractCompositeShape;
  12
  13 public class Grid2D extends AbstractCompositeShape {
  14
  15     /**
  16      * @param transform      Grid location
  17      * @param rectangle      Grid dimensions
  18      * @param xDivisionCount Division count along X axis
  19      * @param yDivisionCount Division count along Y axis
  20      * @param appearance     Grid lines appearance
  21      */
  22     public Grid2D(final Transform transform, final Rectangle rectangle,
  23                   final int xDivisionCount, final int yDivisionCount,
  24                   final LineAppearance appearance) {
  25
  26         super(transform);
  27
  28         final double stepY = rectangle.getHeight() / yDivisionCount;
  29         final double stepX = rectangle.getWidth() / xDivisionCount;
  30
  31         for (int ySlice = 0; ySlice <= yDivisionCount; ySlice++) {
  32             final double y = (ySlice * stepY) + rectangle.getLowerY();
  33
  34             for (int xSlice = 0; xSlice <= xDivisionCount; xSlice++) {
  35                 final double x = (xSlice * stepX) + rectangle.getLowerX();
  36
  37                 final Point3D p1 = new Point3D(x, y, 0);
  38                 final Point3D p2 = new Point3D(x + stepX, y, 0);
  39                 final Point3D p3 = new Point3D(x, y + stepY, 0);
  40
  41                 if (xSlice < xDivisionCount)
  42                     addShape(appearance.getLine(p1, p2));
  43
  44                 if (ySlice < yDivisionCount)
  45                     addShape(appearance.getLine(p1, p3));
  46             }
  47
  48         }
  49
  50     }
  51
  52 }