Data commit

Task/Fractal-tree/Julia/fractal-tree.julia

@@ -0,0 +1,27 @@
+const width = height = 1000.0
+const trunklength = 400.0
+const scalefactor = 0.6
+const startingangle = 1.5 * pi
+const deltaangle = 0.2 * pi
+
+function tree(fh, x, y, len, theta)
+   if len >= 1.0
+       x2 = x + len * cos(theta)
+       y2 = y + len * sin(theta)
+       write(fh, "<line x1='$x' y1='$y' x2='$x2' y2='$y2' style='stroke:rgb(0,0,0);stroke-width:1'/>\n")
+       tree(fh, x2, y2, len * scalefactor, theta + deltaangle)
+       tree(fh, x2, y2, len * scalefactor, theta - deltaangle)
+    end
+end
+
+outsvg = open("tree.svg", "w")
+write(outsvg,
+    """<?xml version='1.0' encoding='utf-8' standalone='no'?>
+    <!DOCTYPE svg PUBLIC '-//W3C//DTD SVG 1.1//EN'
+    'http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd'>
+    <svg width='100%%' height='100%%' version='1.1'
+    xmlns='http://www.w3.org/2000/svg'>\n""")
+
+tree(outsvg, 0.5 * width, height, trunklength, startingangle)
+
+write(outsvg, "</svg>\n") # view file tree.svg in browser