def copy(shape, copies, transform_order='tsr', translate=Point.ZERO, rotate=0, scale=Point.ZERO):
"""Create multiple copies of a shape."""
if shape is None: return None
if isinstance(shape, Path):
shape = shape.asGeometry()
g = Geometry()
tx = ty = r = 0.0
sx = sy = 1.0
for i in xrange(copies):
t = Transform()
# Each letter of the order describes an operation.
for op in transform_order:
if op == 't':
t.translate(tx, ty)
elif op == 'r':
t.rotate(r)
elif op == 's':
t.scale(sx, sy)
g.extend(t.map(shape))
tx += translate.x
ty += translate.y
r += rotate
sx += scale.x / 100.0
sy += scale.y / 100.0
return g
def copy(shape,
copies,
transform_order='tsr',
translate=Point.ZERO,
rotate=0,
scale=Point.ZERO):
"""Create multiple copies of a shape."""
if shape is None: return None
if isinstance(shape, Path):
shape = shape.asGeometry()
g = Geometry()
tx = ty = r = 0.0
sx = sy = 1.0
for i in xrange(copies):
t = Transform()
# Each letter of the order describes an operation.
for op in transform_order:
if op == 't':
t.translate(tx, ty)
elif op == 'r':
t.rotate(r)
elif op == 's':
t.scale(sx, sy)
g.extend(t.map(shape))
tx += translate.x
ty += translate.y
r += rotate
sx += scale.x / 100.0
sy += scale.y / 100.0
return g
def shape_on_path(shape, template, amount, dist, start, keep_geometry):
if shape is None: return None
if template is None: return None
if isinstance(shape, Path):
shape = shape.asGeometry()
if isinstance(template, Path):
template = template.asGeometry()
g = Geometry()
if keep_geometry:
g.extend(template.clone())
first = True
for i in range(amount):
if first:
t = start / 100
first = False
else:
t += dist / 500.0
pt1 = template.pointAt(t)
pt2 = template.pointAt(t + 0.00001)
a = angle(pt2.x, pt2.y, pt1.x, pt1.y)
tp = Transform()
tp.translate(pt1.x, pt1.y)
tp.rotate(a - 180)
new_shape = tp.map(shape)
g.extend(new_shape)
return g
def group(shapes):
if shapes is None: return None
g = Geometry()
for shape in shapes:
if isinstance(shape, Geometry):
g.extend(shape)
elif isinstance(shape, Path):
g.add(shape)
else:
raise "Unable to group %ss. I can only group paths or geometry objects." % shape
return g
def group(shapes):
if shapes is None: return None
g = Geometry()
for shape in shapes:
if isinstance(shape, Geometry):
g.extend(shape)
elif isinstance(shape, Path):
g.add(shape)
else:
raise "Unable to group %ss. I can only group paths or geometry objects." % shape
return g
def _function(shape, *args, **kwargs):
if isinstance(shape, Path):
return fn(shape, *args, **kwargs)
elif isinstance(shape, Geometry):
g = Geometry()
for path in shape.paths:
result = fn(path, *args, **kwargs)
if isinstance(result, Path):
g.add(result)
elif isinstance(result, Geometry):
g.extend(result)
return g
return None
def _function(shape, *args, **kwargs):
if isinstance(shape, Path):
return fn(shape, *args, **kwargs)
elif isinstance(shape, Geometry):
g = Geometry()
for path in shape.paths:
result = fn(path, *args, **kwargs)
if isinstance(result, Path):
g.add(result)
elif isinstance(result, Geometry):
g.extend(result)
return g
return None
def text_on_path(shape, text, font_name="Verdana", font_size=20, position=0, offset=2.0, keep_geometry=True):
if shape is None or shape.length <= 0:
return None
if text is None:
return None
text = unicode(text)
if isinstance(shape, Path):
shape = shape.asGeometry()
g = Geometry()
if keep_geometry:
g.extend(shape.clone())
fm = get_font_metrics(font_name, font_size)
string_width = textwidth(text, fm)
dw = string_width / shape.length
first = True
for i, char in enumerate(text):
char_width = textwidth(char, fm)
if first:
t = position / 100.0
first = False
else:
t += char_width / string_width * dw
# Always loop (the other behavior is weird)
t = t % 1.0
pt1 = shape.pointAt(t)
pt2 = shape.pointAt(t + 0.001)
a = angle(pt2.x, pt2.y, pt1.x, pt1.y)
tp = Text(char, -char_width, -offset)
tp.align = Text.Align.LEFT
tp.fontName = font_name
tp.fontSize = font_size
tp.translate(pt1.x, pt1.y)
tp.rotate(a - 180)
g.add(tp.path)
return g
def lpath(x, y, angle, angleScale, length, thicknessScale, lengthScale,
full_rule):
p = Path()
p.rect(0, -length / 2, 2, length)
segment = p.asGeometry()
# Now run the simulation
g = Geometry()
stack = []
angleStack = []
t = Transform()
t.translate(x, y)
for letter in full_rule:
if re.search('[a-zA-Z]', letter): # Move forward and draw
newShape = t.map(segment)
g.extend(newShape)
t.translate(0, -length)
elif letter == '+': # Rotate right
t.rotate(angle)
elif letter == '-': # Rotate left
t.rotate(-angle)
elif letter == '[': # Push state (start branch)
stack.append(Transform(t))
angleStack.append(angle)
elif letter == ']': # Pop state (end branch)
t = stack.pop()
angle = angleStack.pop()
elif letter == '"': # Multiply length
t.scale(1.0, lengthScale / 100.0)
elif letter == '!': # Multiply thickness
t.scale(thicknessScale / 100.0, 1.0)
elif letter == ';': # Multiply angle
angle *= angleScale / 100.0
elif letter == '_': # Divide length
t.scale(1.0, 1.0 / (lengthScale / 100.0))
elif letter == '?': # Divide thickness
t.scale(1.0 / (thicknessScale / 100.0), 1.0)
elif letter == '@': # Divide angle
angle /= angleScale / 100.0
return g
def cook(generations,x,y,angle,angleScale,length,thicknessScale,lengthScale,premise,rule1,rule2,rule3):
#segment = self.segment
#if segment is None:
p = Path()
p.rect(0, -length/2, 2, length)
segment = p.asGeometry()
# Parse all rules
ruleArgs = [rule1,rule2,rule3]
rules = {}
#rulenum = 1
#while hasattr(cook,"rule%i" % rulenum):
for full_rule in ruleArgs:
#full_rule = getattr("rule%i" % rulenum)
if len(full_rule) > 0:
if len(full_rule) < 3 or full_rule[1] != '=':
raise ValueError("Rule %s should be in the format A=FFF" % full_rule)
rule_key = full_rule[0]
rule_value = full_rule[2:]
rules[rule_key] = rule_value
#rulenum += 1
# Expand the rules up to the number of generations
full_rule = premise
for gen in xrange(int(round(generations))):
tmp_rule = ""
for letter in full_rule:
if letter in rules:
tmp_rule += rules[letter]
else:
tmp_rule += letter
full_rule = tmp_rule
# Now run the simulation
g = Geometry()
stack = []
angleStack = []
t = Transform()
t.translate(x, y)
angle = angle
for letter in full_rule:
if re.search('[a-zA-Z]',letter): # Move forward and draw
newShape = t.map(segment)
g.extend(newShape)
t.translate(0, -length)
elif letter == '+': # Rotate right
t.rotate(angle)
elif letter == '-': # Rotate left
t.rotate(-angle)
elif letter == '[': # Push state (start branch)
stack.append(Transform(t))
angleStack.append(angle)
elif letter == ']': # Pop state (end branch)
t = stack.pop()
angle = angleStack.pop()
elif letter == '"': # Multiply length
t.scale(1.0, lengthScale/100.0)
elif letter == '!': # Multiply thickness
t.scale(thicknessScale/100.0, 1.0)
elif letter == ';': # Multiply angle
angle *= angleScale/100.0
elif letter == '_': # Divide length
t.scale(1.0, 1.0/(lengthScale/100.0))
elif letter == '?': # Divide thickness
t.scale(1.0/(thicknessScale/100.0), 1.0)
elif letter == '@': # Divide angle
angle /= angleScale/100.0
return g
def l_system(shape, position, generations, length, length_scale, angle, angle_scale, thickness_scale, premise, *rules):
if shape is None:
p = Path()
p.rect(0, -length/2, 2, length)
shape = p.asGeometry()
# Parse all rules
rule_map = {}
for rule_index, full_rule in enumerate(rules):
if len(full_rule) > 0:
if len(full_rule) < 3 or full_rule[1] != '=':
raise ValueError("Rule %s should be in the format A=FFF" % (rule_index + 1))
rule_key = full_rule[0]
rule_value = full_rule[2:]
rule_map[rule_key] = rule_value
# Expand the rules up to the number of generations
full_rule = premise
for gen in xrange(int(round(generations))):
tmp_rule = ""
for letter in full_rule:
if letter in rule_map:
tmp_rule += rule_map[letter]
else:
tmp_rule += letter
full_rule = tmp_rule
# Now run the simulation
g = Geometry()
stack = []
angleStack = []
t = Transform()
t.translate(position.x, position.y)
angle = angle
for letter in full_rule:
if letter == 'F': # Move forward and draw
transformed_shape = t.map(shape)
if isinstance(transformed_shape, Geometry):
g.extend(transformed_shape)
elif isinstance(transformed_shape, Path):
g.add(transformed_shape)
t.translate(0, -length)
elif letter == '+': # Rotate right
t.rotate(angle)
elif letter == '-': # Rotate left
t.rotate(-angle)
elif letter == '[': # Push state (start branch)
stack.append(Transform(t))
angleStack.append(angle)
elif letter == ']': # Pop state (end branch)
t = stack.pop()
angle = angleStack.pop()
elif letter == '"': # Multiply length
t.scale(1.0, length_scale / 100.0)
elif letter == '!': # Multiply thickness
t.scale(thickness_scale / 100.0, 1.0)
elif letter == ';': # Multiply angle
angle *= angle_scale / 100.0
elif letter == '_': # Divide length
t.scale(1.0, 1.0/(length_scale / 100.0))
elif letter == '?': # Divide thickness
t.scale(1.0/(thickness_scale / 100.0), 1.0)
elif letter == '@': # Divide angle
angle /= angle_scale / 100.0
return g
