#! /usr/bin/python3
# ===================================================================
# draw a polygon (center coordinates)
# ===================================================================

import transformation_matrix as tm
import coordinate_conversion as cc
from draw_xy_axes import draw_xy_axes
import user_interface as ui
from graphics import *
import numpy as np
import os, sys

win_width  = 801
win_height = 801


# ---- polygon point array/list (center coordinates)

cent_points = ( (-200,300), (100,200), (100,0), (200,-200),
                (-100,-200) )

# ---- create polygon point array/list (window coordinates)

win_points = []

for p in cent_points:

    x,y = cc.center_to_win_coords(p[0],p[1],win_width,win_height)

    win_points.append(Point(x,y))

# ---- draw polygon

win = GraphWin("Demo Polygon Point Array", win_width, win_height)
win.setBackground("white")

draw_xy_axes(win,True)

p = Polygon(win_points)
p.setWidth(1)
##p.setOutline('black')
p.setOutline('red')
p.setFill('red')
p.draw(win)

# ---- wait to continue

ui.pause()

win.close()
print()