/*
- * Sixth 3D engine demos. Copyright ©2012-2020, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
+ * Sixth 3D engine demos. Author: Svjatoslav Agejenko.
+ * This project is released under Creative Commons Zero (CC0) license.
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 3 of the GNU Lesser General Public License
- * or later as published by the Free Software Foundation.
- */
+*/
package eu.svjatoslav.sixth.e3d.examples;
import eu.svjatoslav.sixth.e3d.geometry.Point2D;
import eu.svjatoslav.sixth.e3d.geometry.Point3D;
import eu.svjatoslav.sixth.e3d.gui.ViewFrame;
+import eu.svjatoslav.sixth.e3d.renderer.raster.Color;
import eu.svjatoslav.sixth.e3d.renderer.raster.ShapeCollection;
+import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.line.LineAppearance;
+import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.solidpolygon.SolidPolygon;
import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.Graph;
+import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.wireframe.WireframeSphere;
import java.io.IOException;
import java.util.ArrayList;
public class GraphDemo {
+ private static final double WAVE_FREQUENCY = 50d;
+ private static final double WAVE_AMPLITUDE = 50d;
+ private static final Color SQUARE_PLATE_COLOR = new Color("88F7");
+
+ private static void makeSquarePlate(final ShapeCollection shapeCollection,
+ final double y, final double x, final double z) {
+ final Point3D p1 = new Point3D(x, y, z);
+ final Point3D p2 = new Point3D(x + 20, y, z);
+ final Point3D p3 = new Point3D(x, y, z + 20);
+ final Point3D p4 = new Point3D(x + 20, y, z + 20);
+ final SolidPolygon polygon1 = new SolidPolygon(p1, p2, p3, SQUARE_PLATE_COLOR);
+ final SolidPolygon polygon2 = new SolidPolygon(p4, p2, p3, SQUARE_PLATE_COLOR);
+ shapeCollection.addShape(polygon1);
+ shapeCollection.addShape(polygon2);
+ }
+
+ /**
+ * @param surfaceElevation surface total elevation
+ */
+ private static void addWobblySurface(final ShapeCollection shapeCollection,
+ final double surfaceElevation) {
+ for (double x = -500; x < 500; x += 20)
+ for (double z = -500; z < 500; z += 20) {
+
+ // use Pythagorean theorem to compute distance from the center
+ final double distanceFromCenter = Math.sqrt((x * x) + (z * z));
+
+ double plateElevation = Math.sin(distanceFromCenter / WAVE_FREQUENCY) * WAVE_AMPLITUDE;
+
+ makeSquarePlate(shapeCollection, plateElevation + surfaceElevation, x,
+ z);
+ }
+ }
+
private static final double scale = 50d;
private static Graph getCosineGraph(final Point3D location) {
public static void main(final String[] args) throws IOException {
final ViewFrame viewFrame = new ViewFrame();
-
final ShapeCollection geometryCollection = viewFrame.getViewPanel()
.getRootShapeCollection();
- Point3D location = new Point3D(-600, -300, 0);
+ addMathFormulas(geometryCollection);
+ addSphere(geometryCollection);
+ addWobblySurface(geometryCollection, 200);
+ addWobblySurface(geometryCollection, -200);
+
+ setAvatarLocation(viewFrame);
+ }
+
+ private static void addSphere(ShapeCollection geometryCollection) {
+ // add sphere
+ geometryCollection.addShape(new WireframeSphere(new Point3D(0, 0, 0),
+ 100,
+ new LineAppearance(
+ 4,
+ new Color(255,0, 0, 30))
+ ));
+ }
+
+ private static void addMathFormulas(ShapeCollection geometryCollection) {
+ int z = 1000;
+ Point3D location = new Point3D(-600, -300, z);
geometryCollection.addShape(getSineGraph(location));
- location = new Point3D(600, -300, 0);
+ location = new Point3D(600, -300, z);
geometryCollection.addShape(getFormula1Graph(location));
- location = new Point3D(-600, 0, 0);
+ location = new Point3D(-600, 0, z);
geometryCollection.addShape(getCosineGraph(location));
- location = new Point3D(600, 0, 0);
+ location = new Point3D(600, 0, z);
geometryCollection.addShape(getFormula2Graph(location));
- location = new Point3D(-600, 300, 0);
+ location = new Point3D(-600, 300, z);
geometryCollection.addShape(getTangentGraph(location));
- location = new Point3D(600, 300, 0);
+ location = new Point3D(600, 300, z);
geometryCollection.addShape(getFormula3Graph(location));
+ }
+ private static void setAvatarLocation(ViewFrame viewFrame) {
viewFrame.getViewPanel().getAvatar()
.setLocation(new Point3D(0, 0, -500));
-
}
+
}