import lineTools
import json
import os # for getting script path, etc.

def relativePath(path): # the only argument, path, is relative to the directory this script is stored in
    return os.path.join(os.path.dirname(__file__), path)

# print relativePath("lines.json")

with open(relativePath("lines.json"), "r+") as aFile:
    with open(relativePath("statistics.txt"), "w+") as bFile:
        content = aFile.read()
        lines = json.loads(content)
        for line in lines:
            bFile.write("Line " + str(lines.index(line) + 1) + " - " + str(lineTools.lineLength(line)) + "; center: " + str(lineTools.pointCentre(line)[0]) + ", " + str(lineTools.pointCentre(line)[1]) + "; number of nodes: " + str(len(line)) + "\n")