New generator: HolePattern

using the new fillHoles function.

Resolves: #31
Related: #400

boxes/generators/holepattern.py

@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+# Copyright (C) 2013-2022 Florian Festi
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from boxes import *
+from shapely.geometry import *
+import random
+import time
+
+class HolePattern(Boxes):
+    """Generate hole patterns in different simple shapes"""
+
+    ui_group = "Holes"
+
+    def __init__(self):
+        Boxes.__init__(self)
+
+        self.addSettingsArgs(fillHolesSettings, fill_pattern="hex")
+
+        self.buildArgParser("x", "y")
+        self.argparser.add_argument(
+            "--shape",  action="store", type=str, default="rectangle",
+            choices=["rectangle", "ellipse", "oval", "hexagon", "octagon"],
+            help="Shape of the hole pattern")
+
+    def render(self):
+        x, y = self.x, self.y
+
+        if self.shape == "ellipse":
+            border = [(x * (.5+math.sin(math.radians(a))/2),
+                       y * (.5+math.cos(math.radians(a))/2))
+                      for a in range(0, 360, 18)]
+        elif self.shape == "oval":
+            r = min(x, y) / 2
+            dx = max(x-y, 0)
+            dy = max(y-x, 0)
+            border = [(r * (.5+math.cos(math.radians(a))/2) +
+                       (dx if q in [0, 3] else 0),
+                       r * (.5+math.sin(math.radians(a))/2) +
+                       (dy if q in [1, 2] else 0))
+                      for q in range(4)
+                      for a in range(90*q, 90*q+91, 18)]
+        elif self.shape == "hexagon":
+            dx = min(y / (3**.5) / 2, x / 2)
+            border = [(dx, 0), (x-dx, 0), (x, .5*y),
+                      (x-dx, y), (dx, y), (0, .5*y)]
+        elif self.shape == "octagon":
+            d = (2**.5/(2+2*2**.5))
+            d2 = 1 -d
+            border = [(d*x, 0), (d2*x, 0), (x, d*y), (x, d2*y),
+                      (d2*x, y), (d*x, y), (0, d2*y), (0, d*y)]
+        else: # "rectangle"
+            border = [(0, 0), (x, 0), (x, y), (0, y)]
+    
+        self.fillHoles(
+            pattern=self.fillHoles_fill_pattern,
+            border=border,
+            max_radius=self.fillHoles_hole_max_radius,
+            hspace=self.fillHoles_space_between_holes,
+            bspace=self.fillHoles_space_to_border,
+            min_radius=self.fillHoles_hole_min_radius,
+            style=self.fillHoles_hole_style,
+            bar_length=self.fillHoles_bar_length,
+            max_random=self.fillHoles_max_random
+            )