kopia lustrzana https://github.com/villares/sketch-a-day
228 wiersze
7.7 KiB
Python
228 wiersze
7.7 KiB
Python
# 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")
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else:
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outro_desenho[:] = cp.deepcopy(desenho_inicial)
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# draws white 'lines', non-specials, first.
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for node in (n for n in desenho if not n.is_special):
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for other in node.points_to: # se estiver apontando para alguém
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strokeWeight(node.s_weight)
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stroke(255)
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line(node.x, node.y, other.x, other.y)
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# desenha o círculo (repare que só em nós que 'apontam')
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ellipse(node.x, node.y, node.t_size, node.t_size)
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# then draws 'lonely nodes' in red (nodes that do not point anywhere)
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for node in (n for n in desenho if not n.points_to):
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strokeWeight(node.s_weight)
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stroke(100) # grey stroke for lonely nodes
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if node.is_special:
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ellipse(node.x, node.y, node.t_size * 2, node.t_size * 2)
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else:
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ellipse(node.x, node.y, node.t_size, node.t_size)
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# then draws black specials
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for node in (n for n in desenho if n.is_special):
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for other in node.points_to: # se estiver apontando para alguém
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strokeWeight(node.s_weight)
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stroke(0)
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wave(node.x, node.y, other.x, other.y,
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node.t_size, node.s_weight * 5)
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ellipse(node.x, node.y, node.t_size / 2, node.t_size / 2)
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ellipse(other.x, other.y, node.s_weight, node.s_weight)
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# if frameCount % 4 == 0:
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# gif_export(GifMaker)
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def make_inter_nodes(amt):
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desenho_inter[:] = []
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for n1, n2 in zip(desenho_atual, outro_desenho):
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if n1.points_to:
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p1x, p1y = n1.points_to[0].x, n1.points_to[0].y
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else:
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p1x, p1y = n1.x, n1.y
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if n2.points_to:
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p2x, p2y = n2.points_to[0].x, n2.points_to[0].y
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else:
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p2x, p2y = n2.x, n2.y
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desenho_inter.append(Node( # elemento/"nó" uma namedtuple com:
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n1.x, # x
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n1.y, # y
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n1.t_size, # t_size (tail/circle size)
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n1.s_weight, # s_weight (espessura da linha)
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n1.is_special, # is_special? (se é barra ou 'linha')
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# cp.deepcopy(n1.points_to)
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[PVector(lerp(p1x, p2x, amt), lerp(p1y, p2y, amt))]
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))
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def wave(x1, y1, x2, y2, s=None, n=2):
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from arcs import roundedCorner
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"""
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dois pares (x, y), largura, número de ondas
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"""
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L = dist(x1, y1, x2, y2)
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if not s:
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s = int(max(L / 5, 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 = 0
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dy = L / (n + 2.)
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line(0, 0, 0, dy / 2.)
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point_L = []
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point_L.append(PVector(0, 0))
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for i in range(1, n + 1):
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point_L.append(PVector(0, i * dy))
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if i % 2:
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point_L.append(PVector(-s, i * dy + dy / 2.))
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point_L.append(PVector(0, i * dy + dy))
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else:
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point_L.append(PVector(s, i * dy + dy / 2.))
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point_L.append(PVector(0, i * dy + dy))
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point_L.append(PVector(0, L))
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for p0, p1, p2 in zip(point_L[:-2],
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point_L[1:-1],
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point_L[2:]
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):
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roundedCorner(p1, (p0 + p1) / 2., (p2 + p1) / 2., 10)
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line(0, L - dy / 2., 0, L)
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stroke(0)
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def zigzag(x1, y1, x2, y2, s=None, n=2):
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"""
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dois pares (x, y), largura, número de ondas
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"""
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L = dist(x1, y1, x2, y2)
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if not s:
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s = int(max(L / 5, 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 = 0
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dy = L / (n + 2)
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beginShape()
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stroke(0)
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vertex(0, 0)
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for i in range(1, n + 1):
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vertex(0, i * dy)
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if i % 2:
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stroke(255, 0, 0)
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vertex(-s, i * dy + dy / 2.)
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else:
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stroke(0, 0, 255)
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vertex(s, i * dy + dy / 2.)
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stroke(0)
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vertex(0, L - dy)
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vertex(0, L)
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endShape()
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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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