Initial Commit

svg/svg.py

@@ -0,0 +1,136 @@
+# Copyright 2014 The Cayley Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import svgwrite
+import math
+import random
+
+dwg = svgwrite.Drawing((210,130))
+
+
+node_radius = 15
+big_radius = 50
+fan_dist = 90
+center = (105,65)
+edge_stroke = 2.5
+edge_color = '#555555'
+fan_color = '#aa0000'
+
+b = '#4285F4'
+r = '#DB4437'
+g = '#0F9D58'
+y = '#F4B400'
+n = '#999999'
+
+center_colors = [b, r, y, b, r, y]
+edge_color = n
+fan_color = n
+
+def center_list(center, big_r):
+    x, y = center
+    out = []
+    for i in range(0,6):
+        ox = x + (math.cos(2 * math.pi * i / 6.0) * big_r)
+        oy = y - (math.sin(2 * math.pi * i / 6.0) * big_r)
+        out.append((ox, oy))
+    return out
+
+cx, cy = center
+ring_centers = center_list(center, big_radius)
+outer_left = (cx - fan_dist, cy)
+outer_right = (cx + fan_dist, cy)
+left = ring_centers[3]
+right = ring_centers[0]
+
+all_lines = []
+l = dwg.add(dwg.line(outer_left, left))
+l.stroke(edge_color, edge_stroke)
+all_lines.append(l)
+l = dwg.add(dwg.line(outer_right, right))
+l.stroke(edge_color, edge_stroke)
+all_lines.append(l)
+
+for i, c in enumerate(ring_centers):
+    for j, d in enumerate(ring_centers):
+        if i > j or i == j:
+            continue
+        if (i % 3) == (j % 3):
+            continue
+        if (i % 3) == 1 and (j % 3) == 2:
+            continue
+        if (j % 3) == 1 and (i % 3) == 2:
+            continue
+        if i == 0 and j == 3:
+            continue
+        if i == 3 and j == 0:
+            continue
+        l = dwg.add(dwg.line(c,d))
+        l.stroke(edge_color, edge_stroke)
+        all_lines.append(l)
+
+circle_elems = []
+for i, c in enumerate(ring_centers):
+    elem = dwg.add(dwg.circle(c, node_radius, fill=center_colors[i]))
+    circle_elems.append(elem)
+
+left_circle = dwg.add(dwg.circle(outer_left, node_radius, fill=fan_color))
+right_circle = dwg.add(dwg.circle(outer_right, node_radius, fill=fan_color))
+
+
+anims = []
+def flash(element, orig_color, start, is_line=False):
+    prop = "fill"
+    if is_line:
+        prop = "stroke"
+
+    a = svgwrite.animate.Animate(prop, href=element)
+    a['from'] = orig_color
+    a['to'] = g
+    a['begin'] = "+%0.2fs" % start
+    a['dur'] = "1.0s"
+    dwg.add(a)
+    anims.append(a)
+
+    a = svgwrite.animate.Animate(prop, href=element)
+    a['from'] = g
+    a['to'] = orig_color
+    a['begin'] = "+%0.2fs" % (start + 1.0)
+    a['dur'] = "1.2s"
+
+    dwg.add(a)
+    anims.append(a)
+    return a
+
+dwg.saveas("cayley.svg")
+first = flash(left_circle, n, 0)
+flash(all_lines[0], n, 0.5, True)
+flash(all_lines[7], n, 1.0, True)
+flash(all_lines[3], n, 1.5, True)
+flash(all_lines[9], n, 1.0, True)
+flash(all_lines[5], n, 1.5, True)
+flash(all_lines[1], n, 2.0, True)
+flash(right_circle, n, 2.5)
+flash(left_circle, n, 3.5)
+flash(all_lines[0], n, 4.0, True)
+flash(all_lines[6], n, 4.5, True)
+flash(all_lines[4], n, 5.0, True)
+flash(all_lines[8], n, 4.5, True)
+flash(all_lines[2], n, 5.0, True)
+flash(all_lines[1], n, 5.5, True)
+final = flash(right_circle, n, 6.0)
+
+for anim in anims:
+    anim["begin"] = anim["begin"] + "; " + final.get_id() + ".end" + anim["begin"]
+
+dwg.saveas("cayley_active.svg")