# ``igraph`.`drawing`.`cairo`.`edge`.`CairoArrowEdgeDrawer``

class documentation

`class CairoArrowEdgeDrawer(AbstractCairoEdgeDrawer): (source)`

Constructor: `CairoArrowEdgeDrawer(context, palette)`

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Edge drawer implementation that draws undirected edges as straight lines and directed edges as arrows.

Method | `draw_directed_edge` | Draws a directed edge.

Inherited from `AbstractCairoEdgeDrawer`:

Method | `__init__` | Constructs the edge drawer.
Method | `draw_loop_edge` | Draws a loop edge.
Method | `draw_undirected_edge` | Draws an undirected edge.
Instance Variable | `context` | Undocumented
Instance Variable | `palette` | Undocumented
Instance Variable | `VisualEdgeBuilder` | Undocumented
Method | `_construct_visual_edge_builder` | Construct the visual edge builder that will collect the visual attributes of an edge when it is being drawn.

Inherited from `AbstractEdgeDrawer` (via `AbstractCairoEdgeDrawer`):

Method | `get_label_position` | Returns the position where the label of an edge should be drawn. the default implementation returns the midpoint of the edge and an alignment that tries to avoid overlapping the label with the edge.
Method | `get_label_rotation` | Get the rotation angle of the label to align with the edge.
Static Method | `_curvature_to_float` | Converts values given to the 'curved' edge style argument in plotting calls to floating point values.

def draw_directed_edge(self, edge, src_vertex, dest_vertex): (source)
overrides `igraph.drawing.baseclasses.AbstractEdgeDrawer.draw_directed_edge`

Draws a directed edge.

Parameters
edge | the edge to be drawn. Visual properties of the edge are defined by the attributes of this object.
src_vertex | the source vertex. Visual properties are defined by the attributes of this object.
dest_vertex | the source vertex. Visual properties are defined by the attributes of this object.