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 fit(shape, position, width, height, keep_proportions): """Fit a shape within bounds.""" if shape is None: return None px, py, pw, ph = list(shape.bounds) # Make sure pw and ph aren't infinitely small numbers. # This will lead to incorrect transformations with for examples lines. if 0 < pw <= 0.000000000001: pw = 0 if 0 < ph <= 0.000000000001: ph = 0 t = Transform() t.translate(position.x, position.y) if keep_proportions: # Don't scale widths or heights that are equal to zero. w = pw and width / pw or float("inf") h = ph and height / ph or float("inf") w = h = min(w, h) else: # Don't scale widths or heights that are equal to zero. w = pw and width / pw or 1 h = ph and height / ph or 1 t.scale(w, h) t.translate(-pw / 2 - px, -ph / 2 - py) return t.map(shape)
def scale(shape, scale, origin=Point.ZERO): """Scale the given shape.""" if shape is None: return None t = Transform() t.translate(origin) t.scale(scale.x / 100.0, scale.y / 100.0) t.translate(Point(-origin.x, -origin.y)) return t.map(shape)
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