kopia lustrzana https://github.com/villares/sketch-a-day
190325
villares
rodzic
b88d846e09
commit
bec6a460b6
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@ -74,27 +74,33 @@ def var_bar(p1x, p1y, p2x, p2y, r1, r2=None):
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if r2 is None:
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r2 = r1
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d = dist(p1x, p1y, p2x, p2y)
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if d > 0:
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ri = r1 - r2
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if d > abs(ri):
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rid = (r1 - r2) / d
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if rid > 1:
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rid = 1
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if rid < -1:
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rid = -1
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beta = asin(rid) + HALF_PI
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with pushMatrix():
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translate(p1x, p1y)
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angle = atan2(p1x - p2x, p2y - p1y)
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rotate(angle + HALF_PI)
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ri = r1 - r2
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beta = asin(ri / d) + HALF_PI
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x1 = cos(beta) * r1
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y1 = sin(beta) * r1
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x2 = cos(beta) * r2
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y2 = sin(beta) * r2
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# with pushStyle():
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# noStroke()
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# beginShape()
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# vertex(-x1, -y1)
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# vertex(d - x2, -y2)
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# vertex(d, 0)
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# #vertex(d - x2, +y2, 0)
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# #vertex(-x1, +y1, 0)
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# #vertex(0, 0, 0)
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# endShape()
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#print((d, beta, ri, x1, y1, x2, y2))
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with pushStyle():
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noStroke()
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beginShape()
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vertex(-x1, -y1)
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vertex(d - x2, -y2)
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vertex(d, 0)
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vertex(d - x2, +y2)
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vertex(-x1, +y1)
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vertex(0, 0)
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endShape(CLOSE)
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line(-x1, -y1, d - x2, -y2)
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line(-x1, +y1, d - x2, +y2)
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arc(0, 0, r1 * 2, r1 * 2,
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@ -103,4 +109,4 @@ def var_bar(p1x, p1y, p2x, p2y, r1, r2=None):
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beta - PI, PI - beta)
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else:
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ellipse(p1x, p1y, r1 * 2, r1 * 2)
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ellipse(p2y, p2x, r2 * 2, r2 * 2)
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ellipse(p2x, p2y, r2 * 2, r2 * 2)
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@ -0,0 +1,229 @@
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# -*- coding: utf-8 -*-
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ROTATION = {0: 0,
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BOTTOM: 0,
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DOWN: 0,
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1: HALF_PI,
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LEFT: HALF_PI,
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2: PI,
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TOP: PI,
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UP: PI,
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3: PI + HALF_PI,
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RIGHT: PI + HALF_PI,
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BOTTOM + RIGHT: 0,
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DOWN + RIGHT: 0,
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DOWN + LEFT: HALF_PI,
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BOTTOM + LEFT: HALF_PI,
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TOP + LEFT: PI,
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UP + LEFT: PI,
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TOP + RIGHT: PI + HALF_PI,
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UP + RIGHT: PI + HALF_PI,
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}
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def quarter_circle(x, y, radius, quadrant):
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circle_arc(x, y, radius, ROTATION[quadrant], HALF_PI)
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def half_circle(x, y, radius, quadrant):
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circle_arc(x, y, radius, ROTATION[quadrant], PI)
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def circle_arc(x, y, radius, start_ang, sweep_ang):
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arc(x, y, radius * 2, radius * 2, start_ang, start_ang + sweep_ang)
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def poly_arc(x, y, radius, start_ang, sweep_ang, num_points=2):
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angle = sweep_ang / int(num_points)
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a = start_ang
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with beginShape():
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while a <= start_ang + sweep_ang:
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sx = x + cos(a) * radius
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sy = y + sin(a) * radius
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vertex(sx, sy)
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a += angle
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def arc_poly(x, y, d, _, start_ang, end_ang, num_points=5):
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sweep_ang = end_ang - start_ang
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angle = sweep_ang / int(num_points)
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a = start_ang
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with beginShape():
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while a <= end_ang:
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sx = x + cos(a) * d / 2
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sy = y + sin(a) * d / 2
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vertex(sx, sy)
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a += angle
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def bar(x1, y1, x2, y2, thickness=None, shorter=0, ends=(1, 1)):
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"""
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O código para fazer as barras, dois pares (x, y),
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um parâmetro de encurtamento: shorter
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"""
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L = dist(x1, y1, x2, y2)
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if not thickness:
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thickness = 10
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with pushMatrix():
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translate(x1, y1)
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angle = atan2(x1 - x2, y2 - y1)
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rotate(angle)
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offset = shorter / 2
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line(thickness / 2, offset, thickness / 2, L - offset)
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line(-thickness / 2, offset, -thickness / 2, L - offset)
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if ends[0]:
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half_circle(0, offset, thickness / 2, UP)
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if ends[1]:
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half_circle(0, L - offset, thickness / 2, DOWN)
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def var_bar(p1x, p1y, p2x, p2y, r1, r2=None):
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if r2 is None:
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r2 = r1
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#line(p1x, p1y, p2x, p2y)
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d = dist(p1x, p1y, p2x, p2y)
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ri = r1 - r2
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if d > abs(ri):
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rid = (r1 - r2) / d
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if rid > 1:
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rid = 1
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if rid < -1:
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rid = -1
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beta = asin(rid) + HALF_PI
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with pushMatrix():
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translate(p1x, p1y)
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angle = atan2(p1x - p2x, p2y - p1y)
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rotate(angle + HALF_PI)
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x1 = cos(beta) * r1
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y1 = sin(beta) * r1
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x2 = cos(beta) * r2
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y2 = sin(beta) * r2
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#print((d, beta, ri, x1, y1, x2, y2))
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with pushStyle():
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noStroke()
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beginShape()
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vertex(-x1, -y1)
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vertex(d - x2, -y2)
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vertex(d, 0)
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vertex(d - x2, +y2)
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vertex(-x1, +y1)
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vertex(0, 0)
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endShape(CLOSE)
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line(-x1, -y1, d - x2, -y2)
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line(-x1, +y1, d - x2, +y2)
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arc(0, 0, r1 * 2, r1 * 2,
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-beta - PI, beta - PI)
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arc(d, 0, r2 * 2, r2 * 2,
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beta - PI, PI - beta)
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else:
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ellipse(p1x, p1y, r1 * 2, r1 * 2)
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ellipse(p2x, p2y, r2 * 2, r2 * 2)
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def poly_rounded2(p_list, r_list, open_poly=False):
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"""
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draws a 'filleted' polygon with variable radius
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dependent on roundedCorner()
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"""
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if not open_poly:
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with pushStyle():
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noStroke()
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beginShape()
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for p0, p1 in zip(p_list, [p_list[-1]] + p_list[:-1]):
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m = (PVector(p0.x, p0.y) + PVector(p1.x, p1.y)) / 2
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vertex(m.x, m.y)
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endShape(CLOSE)
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for p0, p1, p2, r in zip(p_list,
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[p_list[-1]] + p_list[:-1],
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[p_list[-2]] + [p_list[-1]] + p_list[:-2],
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[r_list[-1]] + r_list[:-1]
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):
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m1 = (PVector(p0.x, p0.y) + PVector(p1.x, p1.y)) / 2
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m2 = (PVector(p2.x, p2.y) + PVector(p1.x, p1.y)) / 2
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roundedCorner(p1, m1, m2, r)
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else:
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for p0, p1, p2, r in zip(p_list[:-1],
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[p_list[-1]] + p_list[:-2],
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[p_list[-2]] + [p_list[-1]] + p_list[:-3],
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[r_list[-1]] + r_list[:-2]
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):
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m1 = (PVector(p0.x, p0.y) + PVector(p1.x, p1.y)) / 2
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m2 = (PVector(p2.x, p2.y) + PVector(p1.x, p1.y)) / 2
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roundedCorner(p1, m1, m2, r)
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def roundedCorner(pc, p1, p2, r):
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"""
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Based on Stackoverflow C# rounded corner post
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https://stackoverflow.com/questions/24771828/algorithm-for-creating-rounded-corners-in-a-polygon
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"""
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def GetProportionPoint(pt, segment, L, dx, dy):
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factor = float(segment) / L if L != 0 else segment
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return PVector((pt.x - dx * factor), (pt.y - dy * factor))
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# Vector 1
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dx1 = pc.x - p1.x
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dy1 = pc.y - p1.y
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# Vector 2
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dx2 = pc.x - p2.x
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dy2 = pc.y - p2.y
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# Angle between vector 1 and vector 2 divided by 2
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angle = (atan2(dy1, dx1) - atan2(dy2, dx2)) / 2
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# The length of segment between angular point and the
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# points of intersection with the circle of a given radius
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tng = abs(tan(angle))
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segment = r / tng if tng != 0 else r
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# Check the segment
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length1 = sqrt(dx1 * dx1 + dy1 * dy1)
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length2 = sqrt(dx2 * dx2 + dy2 * dy2)
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min_len = min(length1, length2)
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if segment > min_len:
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segment = min_len
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max_r = min_len * abs(tan(angle))
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else:
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max_r = r
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# Points of intersection are calculated by the proportion between
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# length of vector and the length of the segment.
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p1Cross = GetProportionPoint(pc, segment, length1, dx1, dy1)
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p2Cross = GetProportionPoint(pc, segment, length2, dx2, dy2)
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# Calculation of the coordinates of the circle
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# center by the addition of angular vectors.
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dx = pc.x * 2 - p1Cross.x - p2Cross.x
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dy = pc.y * 2 - p1Cross.y - p2Cross.y
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L = sqrt(dx * dx + dy * dy)
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d = sqrt(segment * segment + max_r * max_r)
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circlePoint = GetProportionPoint(pc, d, L, dx, dy)
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# StartAngle and EndAngle of arc
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startAngle = atan2(p1Cross.y - circlePoint.y, p1Cross.x - circlePoint.x)
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endAngle = atan2(p2Cross.y - circlePoint.y, p2Cross.x - circlePoint.x)
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# Sweep angle
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sweepAngle = endAngle - startAngle
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# Some additional checks
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if sweepAngle < 0:
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startAngle, endAngle = endAngle, startAngle
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sweepAngle = -sweepAngle
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if sweepAngle > PI:
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startAngle, endAngle = endAngle, startAngle
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sweepAngle = TWO_PI - sweepAngle
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# Draw result using graphics
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# noStroke()
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with pushStyle():
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noStroke()
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beginShape()
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vertex(p1.x, p1.y)
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vertex(p1Cross.x, p1Cross.y)
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vertex(p2Cross.x, p2Cross.y)
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vertex(p2.x, p2.y)
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endShape(CLOSE)
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line(p1.x, p1.y, p1Cross.x, p1Cross.y)
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line(p2.x, p2.y, p2Cross.x, p2Cross.y)
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arc(circlePoint.x, circlePoint.y, 2 * max_r, 2 * max_r,
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startAngle, startAngle + sweepAngle, OPEN)
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@ -0,0 +1,40 @@
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"""
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Alexandre B A Villares http://abav.lugaralgum.com - GPL v3
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A helper for the Processing gifAnimation library https://github.com/extrapixel/gif-animation/tree/3.0
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Download from https://github.com/villares/processing-play/blob/master/export_GIF/unzip_and_move_to_libraries_GifAnimation.zip
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This helper was inspired by an example by Art Simon https://github.com/APCSPrinciples/AnimatedGIF/
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# add at the start of your sketch:
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add_library('gifAnimation')
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from gif_exporter import gif_export
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# add at the end of draw():
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gif_export(GifMaker)
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"""
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def gif_export(GifMaker, # gets a reference to the library
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filename="exported", # .gif will be added
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repeat=0, # 0 makes it an "endless" animation
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quality=255, # quality range 0 - 255
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delay=200, # this is quick
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frames=0, # 0 will stop on keyPressed or frameCount >= 100000
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finish=False): # force stop
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global gifExporter
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try:
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gifExporter
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except NameError:
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gifExporter = GifMaker(this, filename + ".gif")
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gifExporter.setRepeat(repeat)
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gifExporter.setQuality(quality)
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gifExporter.setDelay(delay)
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gifExporter.addFrame()
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if frames == 0:
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if keyPressed and key == "e":
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finish = True
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if finish:
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gifExporter.finish()
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print("gif saved")
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exit()
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Plik binarny nie jest wyświetlany.
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Po Szerokość: | Wysokość: | Rozmiar: 51 KiB |
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@ -0,0 +1,227 @@
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# Alexandre B A Villares - https://abav.lugaralgum.com/sketch-a-day
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SKETCH_NAME, OUTPUT = "sketch_190325a", ".gif"
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"""
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A retake of sketch 58 180228 + work from sketch_190321 :)
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"""
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from collections import namedtuple
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import random as rnd
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import copy as cp
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add_library('GifAnimation')
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from gif_exporter import gif_export
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SPACING, MARGIN = 120, 120
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X_LIST, Y_LIST = [], [] # listas de posições para elementos
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desenho_atual, outro_desenho, desenho_inter, desenho_inicial = [], [], [], []
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# NUM_NODES = 32 # número de elementos do desenho / number of nodes
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Node = namedtuple(
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'Node', 'x y t_size s_weight is_special points_to')
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save_frames = False
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def setup():
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smooth(16)
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size(600, 600, P2D)
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rectMode(CENTER)
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noFill()
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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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novo_desenho(desenho_atual)
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desenho_inicial[:] = cp.deepcopy(desenho_atual)
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println("'s' to save, and 'n' for a new drawing")
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def keyPressed():
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global save_frames
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if key == 's':
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saveFrame("####.png")
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#save_frames = not save_frames
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print "Saving " + repr(save_frames)
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if key == 'r':
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make_nodes_point(desenho_atual)
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if key == 'n':
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novo_desenho(desenho_atual)
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if key == ' ':
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background(200)
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def novo_desenho(desenho):
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"""
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esvazia a lista elementos (setas e linhas) do desenho anterior
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clears the list of nodes and creates a a new drawing appending desenho_atual,
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a list of nodes/drawing elements: specials, connecting lines and lonely nodes
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"""
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desenho[:] = []
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for x in X_LIST:
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for y in Y_LIST:
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desenho.append(new_node(x, y))
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make_nodes_point(desenho)
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outro_desenho[:] = cp.deepcopy(desenho)
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make_nodes_point(outro_desenho)
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def new_node(x=None, y=None):
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if x == None or y == None:
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x = rnd.choice(X_LIST)
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y = rnd.choice(Y_LIST)
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return Node( # elemento/"nó" uma namedtuple com:
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x, # x
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y, # y
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rnd.choice([10, 20, 30]), # t_size (tail/circle size)
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rnd.choice([1, 2, 3]), # s_weight (espessura da linha)
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rnd.choice([True, False]), # is_special? (se é wave ou 'linha')
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[] # points_to... (lista com ref. a outro elem.))
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)
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def make_nodes_point(desenho):
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for node in desenho: # para cada elemento do desenho
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node.points_to[:] = []
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random_node = rnd.choice(desenho) # sorteia o,utro elemento
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while not ((node.x, node.y) != (random_node.x, random_node.y)
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and dist(node.x, node.y,
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random_node.x, random_node.y) <= SPACING * 2):
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random_node = rnd.choice(desenho)
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# 'aponta' para este elemento, acrescenta na sub_lista
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node.points_to.append(random_node)
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def draw():
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global desenho_atual, outro_desenho
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background(200)
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fc = frameCount % 300 - 150
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if fc < 0:
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desenho = desenho_atual
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elif 0 <= fc < 149:
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if frameCount % 10 == 0:
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make_inter_nodes(map(fc, 0, 150, 0, 1))
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desenho = desenho_inter
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elif fc == 149:
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desenho_atual, outro_desenho = outro_desenho, desenho_atual
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desenho = desenho_atual
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if not mousePressed:
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make_nodes_point(outro_desenho)
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print("will reset")
|
||||
else:
|
||||
outro_desenho[:] = cp.deepcopy(desenho_inicial)
|
||||
|
||||
# draws white 'lines', non-specials, first.
|
||||
for node in (n for n in desenho if not n.is_special):
|
||||
for other in node.points_to: # se estiver apontando para alguém
|
||||
strokeWeight(node.s_weight)
|
||||
stroke(255)
|
||||
line(node.x, node.y, other.x, other.y)
|
||||
# desenha o círculo (repare que só em nós que 'apontam')
|
||||
ellipse(node.x, node.y, node.t_size, node.t_size)
|
||||
# then draws 'lonely nodes' in red (nodes that do not point anywhere)
|
||||
for node in (n for n in desenho if not n.points_to):
|
||||
strokeWeight(node.s_weight)
|
||||
stroke(100) # grey stroke for lonely nodes
|
||||
if node.is_special:
|
||||
ellipse(node.x, node.y, node.t_size * 2, node.t_size * 2)
|
||||
else:
|
||||
ellipse(node.x, node.y, node.t_size, node.t_size)
|
||||
# then draws black specials
|
||||
for node in (n for n in desenho if n.is_special):
|
||||
for other in node.points_to: # se estiver apontando para alguém
|
||||
strokeWeight(node.s_weight)
|
||||
stroke(0)
|
||||
wave(node.x, node.y, other.x, other.y,
|
||||
node.t_size, node.s_weight * 5)
|
||||
ellipse(node.x, node.y, node.t_size / 2, node.t_size / 2)
|
||||
ellipse(other.x, other.y, node.s_weight, node.s_weight)
|
||||
|
||||
# if frameCount % 4 == 0:
|
||||
# gif_export(GifMaker)
|
||||
|
||||
|
||||
def make_inter_nodes(amt):
|
||||
desenho_inter[:] = []
|
||||
for n1, n2 in zip(desenho_atual, outro_desenho):
|
||||
if n1.points_to:
|
||||
p1x, p1y = n1.points_to[0].x, n1.points_to[0].y
|
||||
else:
|
||||
p1x, p1y = n1.x, n1.y
|
||||
if n2.points_to:
|
||||
p2x, p2y = n2.points_to[0].x, n2.points_to[0].y
|
||||
else:
|
||||
p2x, p2y = n2.x, n2.y
|
||||
desenho_inter.append(Node( # elemento/"nó" uma namedtuple com:
|
||||
n1.x, # x
|
||||
n1.y, # y
|
||||
n1.t_size, # t_size (tail/circle size)
|
||||
n1.s_weight, # s_weight (espessura da linha)
|
||||
n1.is_special, # is_special? (se é barra ou 'linha')
|
||||
# cp.deepcopy(n1.points_to)
|
||||
[PVector(lerp(p1x, p2x, amt), lerp(p1y, p2y, amt))]
|
||||
))
|
||||
|
||||
|
||||
def wave(x1, y1, x2, y2, s=None, n=2):
|
||||
from arcs import roundedCorner
|
||||
"""
|
||||
dois pares (x, y), largura, número de ondas
|
||||
"""
|
||||
L = dist(x1, y1, x2, y2)
|
||||
if not s:
|
||||
s = int(max(L / 5, 10))
|
||||
with pushMatrix():
|
||||
translate(x1, y1)
|
||||
angle = atan2(x1 - x2, y2 - y1)
|
||||
rotate(angle)
|
||||
offset = 0
|
||||
dy = L / (n + 2.)
|
||||
line(0, 0, 0, dy / 2.)
|
||||
point_L = []
|
||||
point_L.append(PVector(0, 0))
|
||||
for i in range(1, n + 1):
|
||||
point_L.append(PVector(0, i * dy))
|
||||
if i % 2:
|
||||
point_L.append(PVector(-s, i * dy + dy / 2.))
|
||||
point_L.append(PVector(0, i * dy + dy))
|
||||
else:
|
||||
point_L.append(PVector(s, i * dy + dy / 2.))
|
||||
point_L.append(PVector(0, i * dy + dy))
|
||||
point_L.append(PVector(0, L))
|
||||
for p0, p1, p2 in zip(point_L[:-2],
|
||||
point_L[1:-1],
|
||||
point_L[2:]
|
||||
):
|
||||
roundedCorner(p1, (p0 + p1) / 2., (p2 + p1) / 2., 10)
|
||||
line(0, L - dy / 2., 0, L)
|
||||
stroke(0)
|
||||
|
||||
def zigzag(x1, y1, x2, y2, s=None, n=2):
|
||||
"""
|
||||
dois pares (x, y), largura, número de ondas
|
||||
"""
|
||||
L = dist(x1, y1, x2, y2)
|
||||
if not s:
|
||||
s = int(max(L / 5, 10))
|
||||
with pushMatrix():
|
||||
translate(x1, y1)
|
||||
angle = atan2(x1 - x2, y2 - y1)
|
||||
rotate(angle)
|
||||
offset = 0
|
||||
dy = L / (n + 2)
|
||||
beginShape()
|
||||
stroke(0)
|
||||
vertex(0, 0)
|
||||
for i in range(1, n + 1):
|
||||
vertex(0, i * dy)
|
||||
if i % 2:
|
||||
stroke(255, 0, 0)
|
||||
vertex(-s, i * dy + dy / 2.)
|
||||
else:
|
||||
stroke(0, 0, 255)
|
||||
vertex(s, i * dy + dy / 2.)
|
||||
stroke(0)
|
||||
vertex(0, L - dy)
|
||||
vertex(0, L)
|
||||
endShape()
|
||||
|
||||
# print text to add to the project's README.md
|
||||
def settings():
|
||||
println(
|
||||
"""
|
||||
|
||||
|
||||
[{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)]
|
||||
""".format(SKETCH_NAME, OUTPUT)
|
||||
)
|
||||
11
README.md
11
README.md
|
|
@ -23,6 +23,11 @@ Get updates from my sort-of-weekly newsletter: [[sketch-mail](https://villares.o
|
|||
|
||||
## 2019
|
||||
|
||||
---
|
||||
|
||||
|
||||
|
||||
[sketch_190325a](https://github.com/villares/sketch-a-day/tree/master/2019/sketch_190325a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
|
||||
|
||||
---
|
||||
|
||||
|
|
@ -99,12 +104,6 @@ selecting pointing nodes... (also present on 190323)
|
|||
|
||||
---
|
||||
|
||||
|
||||
|
||||
[sketch_190321b](https://github.com/villares/sketch-a-day/tree/master/2019/sketch_190321b)
|
||||
|
||||
---
|
||||
|
||||
|
||||
|
||||
[sketch_190313a](https://github.com/villares/sketch-a-day/tree/master/2019/sketch_190313a) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
|
||||
|
|
|
|||
Ładowanie…
Reference in New Issue