svgwrite__examples/from_examples/circle_blur.py - master - ilya.petrash/SimplePyScripts

svgwrite__examples/from_examples/circle_blur.py

66 строк2 KB

gil9red

Refactoring. Using black code style

27 июн 2023, 15:23

27 июн 2023, 15:23e7f4870

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

__author__ = "ipetrash"


# SOURCE: https://github.com/mozman/svgwrite/blob/master/examples/ltattrie/circle_blur.py


# pip install svgwrite
import svgwrite


def create_svg(name):
    SVG_SIZE = 900
    FONT_SIZE = 20

    title = name + ": Test to see if feGaussianBlur filter can be used."
    dwg = svgwrite.Drawing(name, (SVG_SIZE, SVG_SIZE), debug=True)

    myfilter = dwg.defs.add(dwg.filter())  # the short way, using auto ids
    myfilter.feGaussianBlur(in_="SourceGraphic", stdDeviation=2)

    defs_g_text = dwg.defs.add(dwg.g(id="defs_g_text"))
    defs_g_text.add(
        dwg.text("SVGWRITE", insert=(0, 0), font_family="serif", font_size=FONT_SIZE)
    )

    # background will be white.
    dwg.add(dwg.rect(insert=(0, 0), size=("100%", "100%"), fill="white"))

    # give the name of the example and a title.
    y = FONT_SIZE + 5
    dwg.add(
        dwg.text(
            title, insert=(0, y), font_family="serif", font_size=FONT_SIZE, fill="black"
        )
    )

    y += 50
    circle_1 = dwg.circle(center=(100, y), r=30)
    circle_1.fill("green", opacity=0.5).stroke("black", width=5).scale([2, 2])
    dwg.add(circle_1)

    # setting the filter attribute
    # at the constructor by filter=myfilter.get_funciri()
    # get_funciri() returns the string 'url(#myfilter)' for id='myfilter'
    y += 30
    circle_2 = dwg.circle(center=(100, y), r=30, filter=myfilter.get_funciri())
    circle_2.fill("green", opacity=0.5).stroke("black", width=5).scale([2, 2])

    # or by setting the 'filter' attribute of the circle_2 object
    # HINT: all svg attributes can be set by this way, but you have to use
    # the REAL svg-attribute-name like: 'font-size' or 'class'
    circle_2["filter"] = myfilter.get_funciri()
    dwg.add(circle_2)

    dwg.save()


if __name__ == "__main__":
    import sys

    prog_name = sys.argv[0].rstrip(".py") + ".svg"

    create_svg(prog_name)