def createSpiral(arm1, arm2, color): """arm1 and arm2 are pairs of (length, velocity)""" canvas.begin_path() canvas.move_to(512, 684) x, y = 0, 0 len1, step1 = arm1 len2, step2 = arm2 global lines lines = [] previousPositions = [] while step1 > 10 or step2 > 10: step1 /= 2 step2 /= 2 global run run = 1 iteration = 1 inarow = 0 while run: iteration += 10 point1 = rotate((0,len1), x) point2 = map(sum,zip(rotate((0, len2), y), point1)) p2 = map(sum, zip(point2, (512, 384))) #Detection of whether pattern is repeating itself if point2 not in previousPositions: previousPositions.append(point2) inarow = 0 else: inarow += 1 if inarow >= 5: print "Pattern is detected to be repeating itself" run = 0 if x == 0: oldpoint2 = point2 else: canvas.add_line(p2[0], p2[1]) #lines.append( canvas.add_line(point1[0], point1[1]) ) #lines.append( canvas.add_line(point2[0], point2[1]) ) oldpoint2 = point2 x += step1 if x > 360: x -= 360 y += step2 if y > 360: y -= 360 #for line in lines: # canvas.delete(line) lines = [] time.sleep(0.005) canvas.close_path() canvas.set_line_width(1) canvas.draw_path()
def createSpiral(arm1, arm2, color):
"""arm1 and arm2 are pairs of (length, velocity)"""
canvas.begin_path()
canvas.move_to(512, 684)
x, y = 0, 0
len1, step1 = arm1
len2, step2 = arm2
global lines
lines = []
previousPositions = []
while step1 > 10 or step2 > 10:
step1 /= 2
step2 /= 2
global run
run = 1
iteration = 1
inarow = 0
while run:
iteration += 10
point1 = rotate((0,len1), x)
point2 = map(sum,zip(rotate((0, len2), y), point1))
p2 = map(sum, zip(point2, (512, 384)))
#Detection of whether pattern is repeating itself
if point2 not in previousPositions:
previousPositions.append(point2)
inarow = 0
else:
inarow += 1
if inarow >= 5:
print("Pattern is detected to be repeating itself")
run = 0
if x == 0:
oldpoint2 = point2
else:
canvas.add_line(p2[0], p2[1])
#lines.append( canvas.add_line(point1[0], point1[1]) )
#lines.append( canvas.add_line(point2[0], point2[1]) )
oldpoint2 = point2
x += step1
if x > 360: x -= 360
y += step2
if y > 360: y -= 360
#for line in lines:
# canvas.delete(line)
lines = []
time.sleep(0.005)
canvas.close_path()
canvas.set_line_width(1)
canvas.draw_path()
def draw_tree(x, y, trunk_thickness, leaf_h, tree_w, trunk_h):
canvas.begin_path()
canvas.move_to(x - tree_w / 2, y + trunk_h)
canvas.add_line(x + tree_w / 2, y + trunk_h)
canvas.add_line(x, y + trunk_h + leaf_h)
canvas.close_path()
canvas.set_fill_color(0.25, 0.50, 0.00)
canvas.fill_path()
canvas.set_stroke_color(0.50, 0.25, 0.00)
canvas.set_line_width(trunk_thickness)
canvas.draw_line(x, y + trunk_h, x, y)
def fill_triangles(x, y, size, theme):
# fill upper triangle
canvas.set_fill_color(*shade_of(random.choice(theme.colors)))
canvas.begin_path()
canvas.move_to(x, y)
canvas.add_line(x, y + size)
canvas.add_line(x + size, y + size)
canvas.add_line(x, y)
canvas.fill_path()
# fill lower triangle
canvas.set_fill_color(*shade_of(random.choice(theme.colors)))
canvas.begin_path()
canvas.move_to(x, y)
canvas.add_line(x + size, y + size)
canvas.add_line(x + size, y)
canvas.add_line(x, y)
canvas.fill_path()
def fill_triangles(x, y, size, theme): # fill upper triangle canvas.set_fill_color(*shade_of(random.choice(theme.colors))) canvas.begin_path() canvas.move_to(x, y) canvas.add_line(x, y + size) canvas.add_line(x + size, y + size) canvas.add_line(x, y) canvas.fill_path() # fill lower triangle canvas.set_fill_color(*shade_of(random.choice(theme.colors))) canvas.begin_path() canvas.move_to(x, y) canvas.add_line(x + size, y + size) canvas.add_line(x + size, y) canvas.add_line(x, y) canvas.fill_path()
def draw_heart(scale = 18): # 18 = full canvas
#print(scale) # useful for debugging
first_time = True
(xorigin, yorigin) = canvas.get_size()
xorigin *= 0.5 # in the center
yorigin *= 0.588 # north of center
detail = 100
canvas.begin_path()
for t in range(int(2 * math.pi * detail)):
t *= detail
x = scale * (16 * math.sin(t) ** 3)
y = scale * (13 * math.cos(t) - 5*math.cos(2*t) - 2*math.cos(3*t) - math.cos(4 * t))
if first_time: # hide the seams
canvas.move_to(x + xorigin, y + yorigin)
first_time = False
canvas.add_line(x + xorigin, y + yorigin)
canvas.set_line_width(1)
canvas.close_path()
canvas.draw_path() # try commenting out this line...
canvas.set_fill_color(1, 0, 0)
canvas.fill_path() # how do I fill just the inner part?
def draw_heart(scale = 18): # 18 = full canvas
#print(scale) # useful for debugging
first_time = True
(xorigin, yorigin) = canvas.get_size()
xorigin *= 0.5 # in the center
yorigin *= 0.588 # north of center
detail = 100
canvas.begin_path()
for t in xrange(int(2 * math.pi * detail)):
t *= detail
x = scale * (16 * math.sin(t) ** 3)
y = scale * (13 * math.cos(t) - 5*math.cos(2*t) - 2*math.cos(3*t) - math.cos(4 * t))
if first_time: # hide the seams
canvas.move_to(x + xorigin, y + yorigin)
first_time = False
canvas.add_line(x + xorigin, y + yorigin)
canvas.set_line_width(1)
canvas.close_path()
canvas.draw_path() # try commenting out this line...
canvas.set_fill_color(1, 0, 0)
canvas.fill_path() # how do I fill just the inner part?
import canvas canvas.set_size(512, 512) from_point = (10, 10) cp1 = (40, 200) #control point 1 cp2 = (350, 50) #control point 2 to_point = (300, 300) # Draw the actual curve: canvas.begin_path() canvas.move_to(from_point[0], from_point[1]) canvas.add_curve(cp1[0], cp1[1], cp2[0], cp2[1], to_point[0], to_point[1]) canvas.set_line_width(2) canvas.draw_path() # Draw the red dots and lines to illustrate what's happening: canvas.set_stroke_color(1, 0, 0) canvas.set_fill_color(1, 0, 0) # Draw straight lines between the control points and the end points: canvas.draw_line(from_point[0], from_point[1], cp1[0], cp1[1]) canvas.draw_line(to_point[0], to_point[1], cp2[0], cp2[1]) # Draw red squares on all the points: canvas.fill_rect(from_point[0] - 4, from_point[1] - 4, 8, 8) canvas.fill_rect(to_point[0] - 4, to_point[1] - 4, 8, 8) canvas.fill_rect(cp1[0] - 4, cp1[1] - 4, 8, 8) canvas.fill_rect(cp2[0] - 4, cp2[1] - 4, 8, 8)
# https://gist.github.com/omz/5087533 import canvas canvas.set_size(512, 512) from_point = (10, 10) cp1 = (40, 200) #control point 1 cp2 = (350, 50) #control point 2 to_point = (300, 300) # Draw the actual curve: canvas.begin_path() canvas.move_to(from_point[0], from_point[1]) canvas.add_curve(cp1[0], cp1[1], cp2[0], cp2[1], to_point[0], to_point[1]) canvas.set_line_width(2) canvas.draw_path() # Draw the red dots and lines to illustrate what's happening: canvas.set_stroke_color(1, 0, 0) canvas.set_fill_color(1, 0, 0) # Draw straight lines between the control points and the end points: canvas.draw_line(from_point[0], from_point[1], cp1[0], cp1[1]) canvas.draw_line(to_point[0], to_point[1], cp2[0], cp2[1]) # Draw red squares on all the points: canvas.fill_rect(from_point[0]-4, from_point[1]-4, 8, 8) canvas.fill_rect(to_point[0]-4, to_point[1]-4, 8, 8) canvas.fill_rect(cp1[0]-4, cp1[1]-4, 8, 8) canvas.fill_rect(cp2[0]-4, cp2[1]-4, 8, 8)
