kopia lustrzana https://github.com/villares/sketch-a-day
113 wiersze
3.4 KiB
Python
113 wiersze
3.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
ROTATION = {0: 0,
|
|
BOTTOM: 0,
|
|
DOWN: 0,
|
|
1: HALF_PI,
|
|
LEFT: HALF_PI,
|
|
2: PI,
|
|
TOP: PI,
|
|
UP: PI,
|
|
3: PI + HALF_PI,
|
|
RIGHT: PI + HALF_PI,
|
|
BOTTOM + RIGHT: 0,
|
|
DOWN + RIGHT: 0,
|
|
DOWN + LEFT: HALF_PI,
|
|
BOTTOM + LEFT: HALF_PI,
|
|
TOP + LEFT: PI,
|
|
UP + LEFT: PI,
|
|
TOP + RIGHT: PI + HALF_PI,
|
|
UP + RIGHT: PI + HALF_PI,
|
|
}
|
|
|
|
def quarter_circle(x, y, radius, quadrant):
|
|
circle_arc(x, y, radius, ROTATION[quadrant], HALF_PI)
|
|
|
|
def half_circle(x, y, radius, quadrant):
|
|
circle_arc(x, y, radius, ROTATION[quadrant], PI)
|
|
|
|
def circle_arc(x, y, radius, start_ang, sweep_ang):
|
|
arc(x, y, radius * 2, radius * 2, start_ang, start_ang + sweep_ang)
|
|
|
|
def poly_arc(x, y, radius, start_ang, sweep_ang, num_points=2):
|
|
angle = sweep_ang / int(num_points)
|
|
a = start_ang
|
|
with beginShape():
|
|
while a <= start_ang + sweep_ang:
|
|
sx = x + cos(a) * radius
|
|
sy = y + sin(a) * radius
|
|
vertex(sx, sy)
|
|
a += angle
|
|
|
|
def arc_poly(x, y, d, _, start_ang, end_ang, num_points=5):
|
|
sweep_ang = end_ang - start_ang
|
|
angle = sweep_ang / int(num_points)
|
|
a = start_ang
|
|
with beginShape():
|
|
while a <= end_ang:
|
|
sx = x + cos(a) * d / 2
|
|
sy = y + sin(a) * d / 2
|
|
vertex(sx, sy)
|
|
a += angle
|
|
|
|
def bar(x1, y1, x2, y2, thickness=None, shorter=0, ends=(1, 1)):
|
|
"""
|
|
O código para fazer as barras, dois pares (x, y),
|
|
um parâmetro de encurtamento: shorter
|
|
"""
|
|
L = dist(x1, y1, x2, y2)
|
|
if not thickness:
|
|
thickness = 10
|
|
with pushMatrix():
|
|
translate(x1, y1)
|
|
angle = atan2(x1 - x2, y2 - y1)
|
|
rotate(angle)
|
|
offset = shorter / 2
|
|
line(thickness / 2, offset, thickness / 2, L - offset)
|
|
line(-thickness / 2, offset, -thickness / 2, L - offset)
|
|
if ends[0]:
|
|
half_circle(0, offset, thickness / 2, UP)
|
|
if ends[1]:
|
|
half_circle(0, L - offset, thickness / 2, DOWN)
|
|
|
|
def var_bar(p1x, p1y, p2x, p2y, r1, r2=None):
|
|
if r2 is None:
|
|
r2 = r1
|
|
d = dist(p1x, p1y, p2x, p2y)
|
|
ri = r1 - r2
|
|
if d > abs(ri):
|
|
rid = (r1 - r2) / d
|
|
if rid > 1:
|
|
rid = 1
|
|
if rid < -1:
|
|
rid = -1
|
|
beta = asin(rid) + HALF_PI
|
|
with pushMatrix():
|
|
translate(p1x, p1y)
|
|
angle = atan2(p1x - p2x, p2y - p1y)
|
|
rotate(angle + HALF_PI)
|
|
x1 = cos(beta) * r1
|
|
y1 = sin(beta) * r1
|
|
x2 = cos(beta) * r2
|
|
y2 = sin(beta) * r2
|
|
#print((d, beta, ri, x1, y1, x2, y2))
|
|
with pushStyle():
|
|
noStroke()
|
|
beginShape()
|
|
vertex(-x1, -y1)
|
|
vertex(d - x2, -y2)
|
|
vertex(d, 0)
|
|
vertex(d - x2, +y2)
|
|
vertex(-x1, +y1)
|
|
vertex(0, 0)
|
|
endShape(CLOSE)
|
|
line(-x1, -y1, d - x2, -y2)
|
|
line(-x1, +y1, d - x2, +y2)
|
|
arc(0, 0, r1 * 2, r1 * 2,
|
|
-beta - PI, beta - PI)
|
|
arc(d, 0, r2 * 2, r2 * 2,
|
|
beta - PI, PI - beta)
|
|
else:
|
|
ellipse(p1x, p1y, r1 * 2, r1 * 2)
|
|
ellipse(p2x, p2y, r2 * 2, r2 * 2)
|