Update examples to accept optional image output name

examples/circles.py

@@ -1,6 +1,7 @@
 import axi
 import math
 import random
+import sys
 
 def circle(cx, cy, r, n):
     points = []
@@ -35,8 +36,10 @@ def main():
     add(0, 0, 64, paths)
     drawing = axi.Drawing(paths).rotate_and_scale_to_fit(11, 8.5).sort_paths()
     im = drawing.render()
-    im.write_to_png('out.png')
-    axi.draw(drawing)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        drawing.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(drawing)
 
 if __name__ == '__main__':
     main()

examples/device_test.py

@@ -1,5 +1,6 @@
 import axi
 import time
+import sys
 
 from math import sin, cos, pi
 
@@ -17,7 +18,10 @@ def main():
     for i in range(10):
         path.extend(circle(4, 4, (i + 1) * 0.2, 3600))
     drawing = axi.Drawing([path]).simplify_paths(0.001)
-    axi.draw(drawing)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        drawing.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(drawing)
 
 if __name__ == '__main__':
     main()

examples/dragon_curve.py

@@ -1,4 +1,5 @@
 import axi
+import sys
 
 def main(iteration):
     turtle = axi.Turtle()
@@ -9,7 +10,10 @@ def main(iteration):
         else:
             turtle.circle(1, 90, 36)
     drawing = turtle.drawing.rotate_and_scale_to_fit(11, 8.5, step=90)
-    axi.draw(drawing)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        drawing.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(drawing)
 
 if __name__ == '__main__':
     main(12)

examples/field.py

@@ -1,6 +1,7 @@
 import axi
 import random
 import time
+import sys
 
 from math import hypot, atan2, sin, cos, pi
 
@@ -64,7 +65,10 @@ def main():
         paths.append(path)
 
     drawing = axi.Drawing(paths).sort_paths().simplify_paths(0.001)
-    axi.draw(drawing)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        drawing.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(drawing)
 
 if __name__ == '__main__':
     main()

examples/growth.py

@@ -1,5 +1,6 @@
 import axi
 import random
+import sys
 
 from collections import defaultdict
 from math import pi, sin, cos, hypot, floor
@@ -129,8 +130,10 @@ def main():
     points, pairs = poisson_disc(0, 0, 11, 8.5, 0.035, 32)
     path = make_path(pairs)
     drawing = axi.Drawing([path]).scale_to_fit(11, 8.5)
-    drawing.render().write_to_png('out.png')
-    axi.draw(drawing)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        drawing.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(drawing)
 
 if __name__ == '__main__':
     main()

examples/lindenmayer.py

@@ -1,4 +1,5 @@
 import axi
+import sys
 
 def main():
     system = axi.LSystem({
@@ -14,8 +15,10 @@ def main():
     d = d.rotate_and_scale_to_fit(12, 8.5, step=90)
     # d = d.sort_paths()
     # d = d.join_paths(0.015)
-    d.render().write_to_png('out.png')
-    axi.draw(d)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        d.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(d)
 
 if __name__ == '__main__':
     main()

examples/piet.py

@@ -1,6 +1,7 @@
 from shapely.geometry import LineString
 import axi
 import random
+import sys
 
 X1 = 0
 X2 = 11
@@ -57,8 +58,10 @@ def main():
     d = axi.Drawing(paths)
     d = d.sort_paths()
     d = d.join_paths(0.001)
-    d.render().write_to_png('out.png')
-    axi.draw(d)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        d.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(d)
 
 if __name__ == '__main__':
     main()

examples/stars.py

@@ -1,6 +1,7 @@
 import axi
 import math
 import random
+import sys
 
 from axi.spatial import Index
 from poisson_disc import poisson_disc
@@ -38,9 +39,10 @@ def main():
     drawing = axi.Drawing(paths)
     drawing = drawing.remove_paths_outside(11, 8.5)
     drawing = drawing.sort_paths()
-    # im = drawing.render()
-    # im.write_to_png('out.png')
-    axi.draw(drawing)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        drawing.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(drawing)
 
 if __name__ == '__main__':
     main()

examples/text.py

@@ -1,4 +1,5 @@
 import axi
+import sys
 
 LINES = [
     'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor',
@@ -39,7 +40,10 @@ def main():
     d = d.join_paths(0.01)
     d.render().write_to_png('out.png')
     print sum(x.t for x in axi.Device().plan_drawing(d))
-    # axi.draw(d)
+    if len(sys.argv) > 1 and sys.argv[1].endswith(".png"):
+        d.render().write_to_png(sys.argv[1])
+    else:
+        axi.draw(d)
 
 if __name__ == '__main__':
     main()

examples/tree_rings.py

@@ -39,7 +39,10 @@ def main():
     paths = create_paths(Image.open(sys.argv[1]))
     drawing = axi.Drawing(paths).rotate_and_scale_to_fit(11, 8.5, step=90)
     drawing = drawing.sort_paths().join_paths(0.02)
-    axi.draw(drawing)
+    if len(sys.argv) > 2 and sys.argv[2].endswith(".png"):
+        drawing.render().write_to_png(sys.argv[2])
+    else:
+        axi.draw(drawing)
 
 if __name__ == '__main__':
     main()