igraph.drawing.cairo.coord.CoordinateSystem

class documentation

class CoordinateSystem(AbstractCairoDrawer):

Known subclasses: igraph.drawing.cairo.coord.DescartesCoordinateSystem

Class implementing a coordinate system object.

Coordinate system objects are used when drawing plots which 2D or 3D coordinate system axes. This is an abstract class which must be extended in order to use it. In general, you'll only need the documentation of this class if you intend to implement an own coordinate system not present in igraph yet.

Method	`draw`	Draws the coordinate system.
Method	`local_to_context`	Converts local coordinates to the context coordinate system (given by the bounding box).

Inherited from AbstractCairoDrawer:

Method	`__init__`	Constructs the drawer and associates it to the given Cairo context and the given `BoundingBox`.
Method	`bbox.setter`	Sets the bounding box of the drawing area where this drawer will draw.
Instance Variable	`context`	Undocumented
Property	`bbox`	The bounding box of the drawing area where this drawer will draw.
Method	`_mark_point`	Marks the given point with a small circle on the canvas. Used primarily for debugging purposes.
Instance Variable	`_bbox`	Undocumented

@abstractmethod
def draw(self): ¶

overrides igraph.drawing.baseclasses.AbstractDrawer.draw

overridden in igraph.drawing.cairo.coord.DescartesCoordinateSystem

Draws the coordinate system.

This method must be overridden in derived classes.

@abstractmethod
def local_to_context(self, x, y): ¶

overridden in igraph.drawing.cairo.coord.DescartesCoordinateSystem

Converts local coordinates to the context coordinate system (given by the bounding box).

This method must be overridden in derived classes.