def parse_rect(e): x = float(get_attribute(e, "x")) y = float(get_attribute(e, "y")) w = float(get_attribute(e, "width")) h = float(get_attribute(e, "height")) if w < 0: print >> sys.stderr, "Error: invalid negative value for <rect> attribute width=\"%s\"" % w w = 0 if h < 0: print >> sys.stderr, "Error: invalid negative value for <rect> attribute height=\"%s\"" % h h = 0 rx = float(get_attribute(e, "rx")) ry = float(get_attribute(e, "ry")) if rx < 0: print >> sys.stderr, "Error: invalid negative value for <rect> attribute rx=\"%s\"" % rx rx = 0 if ry < 0: print >> sys.stderr, "Error: invalid negative value for <rect> attribute ry=\"%s\"" % ry ry = 0 if not rx or not ry: rx = ry = max(rx, ry) if rx > w / 2.0: rx = w / 2.0 if ry > h / 2.0: ry = h / 2.0 p = Path() p.rect(x + w / 2.0, y + h / 2.0, w, h, rx, ry) return p
def rect(position, width, height, roundness): """Create a rectangle or rounded rectangle.""" p = Path() if roundness == Point.ZERO: p.rect(position.x, position.y, width, height) else: p.roundedRect(position.x, position.y, width, height, roundness.x, roundness.y) return p
def parse_rect(e): x = float(get_attribute(e, "x")) y = float(get_attribute(e, "y")) w = float(get_attribute(e, "width")) h = float(get_attribute(e, "height")) p = Path() p.rect(x + w / 2, y + h / 2, w, h) return p
def parse_rect(e): x = float(get_attribute(e, "x")) y = float(get_attribute(e, "y")) w = float(get_attribute(e, "width")) h = float(get_attribute(e, "height")) p = Path() p.rect(x+w/2, y+h/2, w, h) return p
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 generator(): """Serve as a template for future functions that generate geometry""" p = Path() p.rect(0, 0, 100, 100) return p
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