114 lines
5.0 KiB
Python
114 lines
5.0 KiB
Python
|
#! /usr/bin/env python
|
||
|
|
# -*- coding: utf-8 -*-
|
||
|
|
import numpy as np
|
||
|
|
from math import pi
|
||
|
|
|
||
|
|
import inkex
|
||
|
|
|
||
|
|
from Path import Path
|
||
|
|
from Pattern import Pattern
|
||
|
|
|
||
|
|
|
||
|
|
# Select name of class, inherits from Pattern
|
||
|
|
# TODO:
|
||
|
|
# 1) Implement __init__ method to get all custom options and then call Pattern's __init__
|
||
|
|
# 2) Implement generate_path_tree to define all of the desired strokes
|
||
|
|
|
||
|
|
|
||
|
|
class Template(Pattern):
|
||
|
|
|
||
|
|
def __init__(self):
|
||
|
|
""" Constructor
|
||
|
|
"""
|
||
|
|
Pattern.__init__(self) # Must be called in order to parse common options
|
||
|
|
|
||
|
|
# save all custom parameters defined on .inx file
|
||
|
|
self.add_argument('--pattern', type=self.str, default='template1')
|
||
|
|
self.add_argument('--length', type=self.float, default=10.0)
|
||
|
|
self.add_argument('--angle', type=self.int, default=0)
|
||
|
|
self.add_argument('--fold_angle_valley', type=self.int, default=180)
|
||
|
|
|
||
|
|
def generate_path_tree(self):
|
||
|
|
""" Specialized path generation for your origami pattern
|
||
|
|
"""
|
||
|
|
# retrieve conversion factor for selected unit
|
||
|
|
unit_factor = self.calc_unit_factor()
|
||
|
|
|
||
|
|
# retrieve saved parameters, and apply unit factor where needed
|
||
|
|
length = self.options.length * unit_factor
|
||
|
|
vertex_radius = self.options.vertex_radius * unit_factor
|
||
|
|
pattern = self.options.pattern
|
||
|
|
angle = self.options.angle * pi / 180
|
||
|
|
fold_angle_valley = self.options.fold_angle_valley
|
||
|
|
|
||
|
|
# create all Path instances defining strokes
|
||
|
|
# first define its points as a list of tuples...
|
||
|
|
left_right_stroke_points = [(length / 2, 0),
|
||
|
|
(length / 2, length)]
|
||
|
|
up_down_stroke_points = [(0, length / 2),
|
||
|
|
(length, length / 2)]
|
||
|
|
|
||
|
|
# doing the same for diagonals
|
||
|
|
diagonal_1_stroke_points = [(0, 0),
|
||
|
|
(length, length)]
|
||
|
|
diagonal_2_stroke_points = [(0, length),
|
||
|
|
(length, 0)]
|
||
|
|
|
||
|
|
# ... and then create the Path instances, defining its type ('m' for mountain, etc...)
|
||
|
|
if pattern == 'template1':
|
||
|
|
up_down = [Path(left_right_stroke_points, 'm', fold_angle = 180.),
|
||
|
|
Path(up_down_stroke_points, 'm', fold_angle = 180.)]
|
||
|
|
|
||
|
|
diagonals = [Path(diagonal_1_stroke_points, 'v', fold_angle = fold_angle_valley),
|
||
|
|
Path(diagonal_2_stroke_points, 'v', fold_angle = fold_angle_valley)]
|
||
|
|
|
||
|
|
else:
|
||
|
|
up_down = [Path(left_right_stroke_points, 'v', fold_angle = fold_angle_valley),
|
||
|
|
Path(up_down_stroke_points, 'v', fold_angle = fold_angle_valley)]
|
||
|
|
|
||
|
|
diagonals = [Path(diagonal_1_stroke_points, 'm', fold_angle = 180.),
|
||
|
|
Path(diagonal_2_stroke_points, 'm', fold_angle = 180. )]
|
||
|
|
|
||
|
|
vertices = []
|
||
|
|
for i in range(3):
|
||
|
|
for j in range(3):
|
||
|
|
vertices.append(Path(((i/2.) * length, (j/2.) * length), style='p', radius=vertex_radius))
|
||
|
|
|
||
|
|
# multiplication is implemented as a rotation, and list_rotate implements rotation for list of Path instances
|
||
|
|
vertices = Path.list_rotate(vertices, angle, (1 * length, 1 * length))
|
||
|
|
up_down = Path.list_rotate(up_down, angle, (1 * length, 1 * length))
|
||
|
|
diagonals = Path.list_rotate(diagonals, angle, (1 * length, 1 * length))
|
||
|
|
|
||
|
|
# if Path constructor is called with more than two points, a single stroke connecting all of then will be
|
||
|
|
# created. Using method generate_separated_paths, you can instead return a list of separated strokes
|
||
|
|
# linking each two points
|
||
|
|
|
||
|
|
# create a list for edge strokes
|
||
|
|
# create path from points to be able to use the already built rotate method
|
||
|
|
edges = Path.generate_square(length, length, 'e', rotation = angle)
|
||
|
|
edges = Path.list_rotate(edges, angle, (1 * length, 1 * length))
|
||
|
|
|
||
|
|
# IMPORTANT: the attribute "path_tree" must be created at the end, saving all strokes
|
||
|
|
self.path_tree = [up_down, diagonals, vertices]
|
||
|
|
|
||
|
|
# IMPORTANT: at the end, save edge points as "self.edge_points", to simplify selection of single or multiple
|
||
|
|
# strokes for the edge
|
||
|
|
self.edge_points = edges.points
|
||
|
|
|
||
|
|
# if you decide not to declare "self.edge_points", then the edge must be explicitly created in the path_tree:
|
||
|
|
# self.path_tree = [mountains, valleys, vertices, edges]
|
||
|
|
|
||
|
|
# FINAL REMARKS:
|
||
|
|
# division is implemented as a reflection, and list_reflect implements it for a list of Path instances
|
||
|
|
# here's a commented example:
|
||
|
|
# line_reflect = (0 * length, 2 * length, 1 * length, 1 * length)
|
||
|
|
# mountains = Path.list_reflect(mountains, line_reflect)
|
||
|
|
# valleys = Path.list_reflect(valleys, line_reflect)
|
||
|
|
# edges = Path.list_reflect(edges, line_reflect)
|
||
|
|
|
||
|
|
# Main function, creates an instance of the Class and calls self.draw() to draw the origami on inkscape
|
||
|
|
# self.draw() is either a call to inkex.affect() or to svg.run(), depending on python version
|
||
|
|
if __name__ == '__main__':
|
||
|
|
e = Template() # remember to put the name of your Class here!
|
||
|
|
e.draw()
|