kopia lustrzana https://github.com/villares/sketch-a-day
105 wiersze
3.0 KiB
Python
105 wiersze
3.0 KiB
Python
# Alexandre B A Villares - https://abav.lugaralgum.com/sketch-a-day
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from __future__ import division
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SKETCH_NAME, OUTPUT = "sketch_190401a", ".gif"
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"""
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Hmmm
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"""
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from random import choice
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from arcs import poly_filleted
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add_library('GifAnimation')
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from gif_exporter import gif_export
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SPACING, MARGIN = 100, 100
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X_LIST, Y_LIST = [], [] # listas de posições para elementos
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rad_list = [10, 20, 30, 40]
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def setup():
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size(500, 500)
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X_LIST[:] = [x for x in range(MARGIN, 1 + width - MARGIN, SPACING)]
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Y_LIST[:] = [y for y in range(MARGIN, 1 + height - MARGIN, SPACING)]
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create_list()
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def create_list():
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global p_list
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p_list = []
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for r in rad_list:
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new_p = PVector(choice(X_LIST), choice(Y_LIST))
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while new_p in p_list:
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new_p = PVector(choice(X_LIST), choice(Y_LIST))
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p_list.append(new_p)
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def draw():
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background(200)
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noFill()
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strokeWeight(2)
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stroke(255)
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poly_filleted(p_list) #, rad_list)
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strokeWeight(2)
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stroke(0)
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poly_arc_augmented(p_list, rad_list)
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def poly_arc_augmented(p_list, r_list):
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a_list = []
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for i1 in range(len(p_list)):
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i2 = (i1 + 1) % len(p_list)
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p1, p2, r1, r2 = p_list[i1], p_list[i2], r_list[i1], r_list[i2]
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a = circ_circ_tangent(p1, p2, r1, r2)
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a_list.append(a)
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# ellipse(p1.x, p1.y, 2, 2)
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for i1 in range(len(a_list)):
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i2 = (i1 + 1) % len(a_list)
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p1, p2, r1, r2 = p_list[i1], p_list[i2], r_list[i1], r_list[i2]
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#ellipse(p1.x, p1.y, r1 * 2, r1 * 2)
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a1 = a_list[i1]
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a2 = a_list[i2]
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if a1 and a2:
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start = a1 if a1 < a2 else a1 - TWO_PI
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arc(p2.x, p2.y, r2 * 2, r2 * 2, start, a2)
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else:
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# println((a1, a2))
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ellipse(p1.x, p1.y, r1 * 2, r1 * 2)
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ellipse(p2.x, p2.y, r2 * 2, r2 * 2)
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def circ_circ_tangent(p1, p2, r1, r2):
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d = dist(p1.x, p1.y, p2.x, p2.y)
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ri = r1 - r2
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line_angle = atan2(p1.x - p2.x, p2.y - p1.y)
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if d > abs(ri):
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theta = asin(ri / float(d))
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x1 = cos(line_angle - theta) * r1
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y1 = sin(line_angle - theta) * r1
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x2 = cos(line_angle - theta) * r2
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y2 = sin(line_angle - theta) * r2
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# line(p1.x - x1, p1.y - y1, p2.x - x2, p2.y - y2)
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x1 = -cos(line_angle + theta) * r1
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y1 = -sin(line_angle + theta) * r1
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x2 = -cos(line_angle + theta) * r2
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y2 = -sin(line_angle + theta) * r2
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line(p1.x - x1, p1.y - y1, p2.x - x2, p2.y - y2)
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return (line_angle + theta)
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else:
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line(p1.x, p1.y, p2.x, p2.y)
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return None
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def mouseClicked():
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create_list()
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def keyPressed():
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gif_export(GifMaker, filename=SKETCH_NAME, delay=1200)
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# print text to add to the project's README.md
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def settings():
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println(
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"""
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[{0}](https://github.com/villares/sketch-a-day/tree/master/2019/{0}) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
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""".format(SKETCH_NAME, OUTPUT)
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)
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