Refs #11054 Add script to generate png files

Code/Mantid/docs/generate_diagrams.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+
+######################
+#CONFIGURABLE OPTIONS#
+######################
+
+STYLE = dict()
+
+STYLE["global_style"] = """
+fontname = Helvetica
+labelloc = t
+node[fontname="Helvetica", style = filled]
+edge[fontname="Helvetica"]
+"""
+
+STYLE['param_style']     = 'node[fillcolor = khaki, shape = oval]'
+STYLE['decision_style']  = 'node[fillcolor = limegreen, shape = diamond]'
+STYLE['algorithm_style'] = 'node[style = "rounded,filled", fillcolor = lightskyblue, shape = rectangle]'
+STYLE['process_style']   = 'node[fillcolor = lightseagreen, shape = rectangle]'
+STYLE['value_style']     = 'node[fontname = "Times-Roman", fillcolor = grey, shape = parallelogram]'
+
+#############################
+#END OF CONFIGURABLE OPTIONS#
+#############################
+
+import argparse, os, string, subprocess
+
+parser = argparse.ArgumentParser(description="Generate diagrams from dot files")
+
+parser.add_argument("output_dir", help="The directory to write the output files to")
+parser.add_argument("input_files", nargs="+", help="The .dot files to process")
+
+args = parser.parse_args()
+
+print("Output dir: " + args.output_dir)
+
+if not os.path.exists(args.output_dir):
+    os.makedirs(args.output_dir)
+
+for fn in args.input_files:
+    if fn.endswith(".dot"):
+        dot_name = os.path.basename(fn)
+        png_name = dot_name[:-4] + ".png"
+        png_path = os.path.join(args.output_dir, png_name)
+
+        print("Reading: " + fn)
+
+        in_src = open(fn, 'r').read()
+        out_src = string.Template(in_src).substitute(STYLE)
+
+        print("Writing: " + png_path)
+        gviz = subprocess.Popen(["dot","-Tpng","-o",png_path], stdin=subprocess.PIPE)
+        gviz.communicate(input=out_src)
+        gviz.wait()
+