# Author: alexn11 (alexn11.gh@gmail.com)
# Created: 2018-10-21
# Copyright (C) 2018, 2020, Alexandre De Zotti
# License: MIT License
import math
import cmath
import mathsvg
two_pi = 2 * math.pi
image = mathsvg.SvgImage(pixel_density = 100, view_window = ((-4, -4), (4, 4)))
image.draw_point([0, 0])
image.draw_point([1, 0])
image.draw_cross([0, 1])
image.draw_cross([0, -1])
image.draw_cross([-1, 0])
image.draw_circle([0, 0], 2.5)
image.draw_circle_arc([0, 0], 2.88, 0.2, 1.1)
focuses = [ [-1.33, 0.61], [1.33, -0.61] ]
image.draw_plus(focuses [0])
image.draw_plus(focuses [1])
image.set_dash_mode("dash")
image.draw_ellipse_arc(focuses, 0.412, two_pi * 0.1, two_pi * 0.8)
image.set_dash_mode("dot")
image.draw_ellipse(focuses, 0.68)
image.save("points-crosses-circles-ellipses.svg", do_overwrite=True)
