Download Jar. Uses 3874K of libraries. Click here for Pure Java version (5071L/36K).
!7 import static java.lang.Math.*; import java.awt.geom.*; p-substance { showPackedFrame(new PenroseTiling); hideConsole(); } sclass PenroseTiling extends JPanel { // ignores missing hash code class Tile { double x, y, angle, size; Type type; Tile(Type t, double x, double y, double a, double s) { type = t; this.x = x; this.y = y; angle = a; size = s; } @Override public boolean equals(Object o) { if (o instanceof Tile) { Tile t = (Tile) o; return type == t.type && x == t.x && y == t.y && angle == t.angle; } return false; } } enum Type { Kite, Dart } static final double G = (1 + sqrt(5)) / 2; // golden ratio static final double T = toRadians(36); // theta new L<Tile> tiles; *() { int w = 700, h = 450; setPreferredSize(new Dimension(w, h)); setBackground(Color.white); tiles = deflateTiles(setupPrototiles(w, h), 5); } L<Tile> setupPrototiles(int w, int h) { new L<Tile> proto; // sun for (double a = PI / 2 + T; a < 3 * PI; a += 2 * T) proto.add(new Tile(Type.Kite, w / 2, h / 2, a, w / 2.5)); ret proto; } List<Tile> deflateTiles(List<Tile> tls, int generation) { if (generation <= 0) return tls; List<Tile> next = new ArrayList<>(); for (Tile tile : tls) { double x = tile.x, y = tile.y, a = tile.angle, nx, ny; double size = tile.size / G; if (tile.type == Type.Dart) { next.add(new Tile(Type.Kite, x, y, a + 5 * T, size)); for (int i = 0, sign = 1; i < 2; i++, sign *= -1) { nx = x + cos(a - 4 * T * sign) * G * tile.size; ny = y - sin(a - 4 * T * sign) * G * tile.size; next.add(new Tile(Type.Dart, nx, ny, a - 4 * T * sign, size)); } } else { for (int i = 0, sign = 1; i < 2; i++, sign *= -1) { next.add(new Tile(Type.Dart, x, y, a - 4 * T * sign, size)); nx = x + cos(a - T * sign) * G * tile.size; ny = y - sin(a - T * sign) * G * tile.size; next.add(new Tile(Type.Kite, nx, ny, a + 3 * T * sign, size)); } } } // remove duplicates tls = uniquify(next); return deflateTiles(tls, generation - 1); } void drawTiles(Graphics2D g) { double[][] dist = {{G, G, G}, {-G, -1, -G}}; for (Tile tile : tiles) { double angle = tile.angle - T; Path2D path = new Path2D.Double(); path.moveTo(tile.x, tile.y); int ord = tile.type.ordinal(); for (int i = 0; i < 3; i++) { double x = tile.x + dist[ord][i] * tile.size * cos(angle); double y = tile.y - dist[ord][i] * tile.size * sin(angle); path.lineTo(x, y); angle += T; } path.closePath(); g.setColor(ord == 0 ? Color.orange : Color.yellow); g.fill(path); g.setColor(Color.darkGray); g.draw(path); } } @Override public void paintComponent(Graphics og) { super.paintComponent(og); Graphics2D g = (Graphics2D) og; g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); drawTiles(g); } }
download show line numbers debug dex old transpilations
Travelled to 13 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, irmadwmeruwu, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tvejysmllsmz, vouqrxazstgt
ID | Author/Program | Comment | Date |
---|---|---|---|
1375 | stefan | From https://rosettacode.org/wiki/Penrose_tiling | 2018-09-11 21:46:07 |
Snippet ID: | #1018239 |
Snippet name: | Penrose Tiling (OK) |
Eternal ID of this version: | #1018239/6 |
Text MD5: | 41604ed531381b7e96ce768884bac0cd |
Transpilation MD5: | 95e60fe0d4b7e778f87a66bfae5813cb |
Author: | stefan |
Category: | javax / gui |
Type: | JavaX source code (desktop) |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2018-09-11 21:40:02 |
Source code size: | 3578 bytes / 128 lines |
Pitched / IR pitched: | No / No |
Views / Downloads: | 671 / 1471 |
Version history: | 5 change(s) |
Referenced in: | [show references] |