rqt_dotgraph.xdot_qt module

Visualize dot graphs via the xdot format.

class rqt_dotgraph.xdot_qt.Animation(dot_widget)

Bases: object

start()

step = 0.03

stop()

tick()

class rqt_dotgraph.xdot_qt.BezierShape(pen, points, filled=False)

Bases: Shape

Used to draw a bezier curve with QPainter.

draw(painter, highlight=False)

Draw this shape with the given cairo context.

class rqt_dotgraph.xdot_qt.CompoundShape(shapes)

Bases: Shape

Used to draw a set of shapes with QPainter.

draw(cr, highlight=False)

Draw this shape with the given cairo context.

class rqt_dotgraph.xdot_qt.DotLexer(buf=None, pos=0, filename=None, fp=None)

Bases: Lexer

filter(type, text)

scanner = <rqt_dotgraph.xdot_qt.DotScanner object>

class rqt_dotgraph.xdot_qt.DotParser(lexer)

Bases: Parser

handle_edge(src_id, dst_id, attrs)

handle_graph(attrs)

handle_node(id, attrs)

parse()

parse_attr()

parse_attrs()

parse_graph()

parse_id()

parse_node_id()

parse_stmt()

parse_subgraph()

class rqt_dotgraph.xdot_qt.DotScanner

Bases: Scanner

ignorecase = True

literals = {'digraph': 15, 'edge': 17, 'graph': 14, 'node': 16, 'strict': 13, 'subgraph': 18}

symbols = {'+': 12, ',': 8, ':': 9, ';': 10, '=': 11, '[': 4, ']': 5, '{': 6, '}': 7}

tokens = [(-2, '[ \\t\\f\\r\\n\\v]+|//[^\\r\\n]*|/\\*.*?\\*/|#[^\\r\\n]*', False), (0, '[a-zA-Z_\\x80-\\xff][a-zA-Z0-9_\\x80-\\xff]*', True), (0, '-?(?:\\.[0-9]+|[0-9]+(?:\\.[0-9]*)?)', False), (1, '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"', False), (2, '<[^<>]*(?:<[^<>]*>[^<>]*)*>', False), (3, '-[>-]', False)]

class rqt_dotgraph.xdot_qt.DotWidget(*args: Any, **kwargs: Any)

Bases: QWidget

Qt widget that draws dot graphs.

POS_INCREMENT = 100

ZOOM_INCREMENT = 1.25

ZOOM_TO_FIT_MARGIN = 12

animate_to(x, y)

filter = 'dot'

get_current_pos()

get_drag_action(event)

get_jump(x, y)

get_url(x, y)

is_click(event, click_fuzz=4, click_timeout=1.0)

keyPressEvent(event)

mouseMoveEvent(event)

mousePressEvent(event)

mouseReleaseEvent(event)

on_area_scroll_event(area, event)

on_area_size_allocate(area, allocation)

on_zoom_100()

on_zoom_fit()

on_zoom_in()

on_zoom_out()

paintEvent(event=None)

register_select_callback(cb)

reload()

set_current_pos(x, y)

set_dotcode(dotcode, filename='<stdin>', center=True)

set_filter(filter)

set_highlight(items)

set_xdotcode(xdotcode, center=True)

wheelEvent(event)

window_to_graph(x, y)

zoom_image(zoom_ratio, center=False, pos=None)

zoom_to_area(x1, y1, x2, y2)

zoom_to_fit()

class rqt_dotgraph.xdot_qt.DotWindow(*args: Any, **kwargs: Any)

Bases: QMainWindow

add_actions(target, actions)

add_recent_file(filename)

create_action(text, slot=None, shortcut=None, icon=None, tip=None, checkable=False, signal='triggered()')

on_open()

on_reload()

open_file(filename=None)

set_dotcode(dotcode, filename='<stdin>')

set_filter(filter)

set_xdotcode(xdotcode, filename='<stdin>')

update_file(filename)

update_file_menu()

class rqt_dotgraph.xdot_qt.DragAction(dot_widget)

Bases: object

abort()

drag(deltax, deltay)

draw(cr)

on_button_press(event)

on_button_release(event)

on_motion_notify(event)

start()

stop()

class rqt_dotgraph.xdot_qt.Edge(src, dst, points, shapes, url, tooltip)

Bases: Element

RADIUS = 10

get_jump(x, y)

class rqt_dotgraph.xdot_qt.Element(shapes)

Bases: CompoundShape

Base class for graph nodes and edges.

get_jump(x, y)

get_url(x, y)

class rqt_dotgraph.xdot_qt.EllipseShape(pen, x0, y0, w, h, filled=False)

Bases: Shape

Used to draw an ellipse shape with a QPainter.

draw(painter, highlight=False)

Draw this shape with the given cairo context.

class rqt_dotgraph.xdot_qt.Graph(width=1, height=1, shapes=(), nodes=(), edges=(), subgraph_shapes={})

Bases: Shape

draw(cr, highlight_items=None)

Draw this shape with the given cairo context.

get_jump(x, y)

get_size()

get_url(x, y)

class rqt_dotgraph.xdot_qt.Jump(item, x, y, highlight=None, url=None)

Bases: object

Represents a jump to another node’s position on the canvas.

class rqt_dotgraph.xdot_qt.Lexer(buf=None, pos=0, filename=None, fp=None)

Bases: object

consume(text)

newline_re = re.compile('\\r\\n?|\\n')

next()

scanner = None

tabsize = 8

class rqt_dotgraph.xdot_qt.LineShape(pen, points)

Bases: Shape

Used to draw a line with QPainter.

draw(painter, highlight=False)

Draw this shape with the given cairo context.

class rqt_dotgraph.xdot_qt.LinearAnimation(dot_widget)

Bases: Animation

animate(t)

duration = 0.6

start()

tick()

class rqt_dotgraph.xdot_qt.MoveToAnimation(dot_widget, target_x, target_y)

Bases: LinearAnimation

animate(t)

class rqt_dotgraph.xdot_qt.NoAnimation(dot_widget)

Bases: Animation

start()

stop()

class rqt_dotgraph.xdot_qt.Node(x, y, w, h, shapes, url, tooltip)

Bases: Element

An abstract node in the graph, it’s spatial location, and it’s visual representation.

get_jump(x, y)

get_url(x, y)

Get the elemnt’s metadata.

is_inside(x, y)

Use to check for 2D-picking via the mouse.

param x: The x position on the canvas param y: The y position on the canvas

class rqt_dotgraph.xdot_qt.NullAction(dot_widget)

Bases: DragAction

on_motion_notify(event)

class rqt_dotgraph.xdot_qt.PanAction(dot_widget)

Bases: DragAction

abort()

drag(deltax, deltay)

start()

stop()

exception rqt_dotgraph.xdot_qt.ParseError(msg=None, filename=None, line=None, col=None)

Bases: Exception

class rqt_dotgraph.xdot_qt.Parser(lexer)

Bases: object

consume()

match(type)

skip(type)

class rqt_dotgraph.xdot_qt.Pen

Bases: object

Store pen attributes.

copy()

Create a copy of this pen.

highlighted()

Highlight the pen.

class rqt_dotgraph.xdot_qt.PolygonShape(pen, points, filled=False)

Bases: Shape

Used to draw a polygon with QPainter.

draw(painter, highlight=False)

Draw this shape with the given cairo context.

class rqt_dotgraph.xdot_qt.Scanner

Bases: object

Stateless scanner.

ignorecase = False

literals = {}

next(buf, pos)

symbols = {}

tokens = []

class rqt_dotgraph.xdot_qt.Shape

Bases: object

Abstract base class for all the drawing shapes.

draw(cr, highlight=False)

Draw this shape with the given cairo context.

select_pen(highlight)

Select the pen to highlight.

class rqt_dotgraph.xdot_qt.TextShape(pen, x, y, j, w, t)

Bases: Shape

Used to draw a text shape with a QPainter.

CENTER = 0

LEFT = -1

RIGHT = 1

draw(painter, highlight=False)

Draw this shape with the given cairo context.

class rqt_dotgraph.xdot_qt.Token(type, text, line, col)

Bases: object

class rqt_dotgraph.xdot_qt.Url(item, url, highlight=None)

Bases: object

Represents a graphviz URL.

class rqt_dotgraph.xdot_qt.XDotAttrParser(parser, buf)

Bases: object

Parser for xdot drawing attributes.

See Also

• http://www.graphviz.org/doc/info/output.html#d:xdot

handle_bezier(points, filled=False)

handle_color(color, filled=False)

handle_ellipse(x0, y0, w, h, filled=False)

handle_font(size, name)

handle_line(points)

handle_linestyle(style)

handle_linewidth(linewidth)

handle_polygon(points, filled=False)

handle_text(x, y, j, w, t)

classmethod hex2float(hex_val)

Convert hex value to float.

lookup_color(c)

parse()

read_code()

read_color()

read_float()

read_number()

read_point()

read_polygon()

read_text()

transform(x, y)

unescape(buf)

class rqt_dotgraph.xdot_qt.XDotParser(xdotcode)

Bases: DotParser

handle_edge(src_id, dst_id, attrs)

handle_graph(attrs)

handle_node(id, attrs)

parse()

parse_edge_pos(pos)

parse_node_pos(pos)

transform(x, y)

class rqt_dotgraph.xdot_qt.ZoomAction(dot_widget)

Bases: DragAction

drag(deltax, deltay)

class rqt_dotgraph.xdot_qt.ZoomAreaAction(dot_widget)

Bases: DragAction

abort()

drag(deltax, deltay)

draw(painter)

stop()

class rqt_dotgraph.xdot_qt.ZoomToAnimation(dot_widget, target_x, target_y)

Bases: MoveToAnimation

animate(t)

rqt_dotgraph.xdot_qt.closeEvent(self, event)

rqt_dotgraph.xdot_qt.main()

Run this as a standalone program.

rqt_dotgraph.xdot_qt.square_distance(x1, y1, x2, y2)

rqt_dotgraph.xdot_qt.stop(self)