matplotlib.backends.backend_mixed#

classmatplotlib.backends.backend_mixed.MixedModeRenderer(figure,width,height,dpi,vector_renderer,raster_renderer_class=None,bbox_inches_restore=None)[source]#

Bases:object

A helper class to implement a renderer that switches betweenvector and raster drawing. An example may be a PDF writer, wheremost things are drawn with PDF vector commands, but some verycomplex objects, such as quad meshes, are rasterised and thenoutput as images.

Parameters:

figureFigure

The figure instance.

widthfloat

The width of the canvas in logical units

heightfloat

The height of the canvas in logical units

dpifloat

The dpi of the canvas

vector_rendererRendererBase

An instance of a subclass ofRendererBase that will be used for thevector drawing.

raster_renderer_classRendererBase

The renderer class to use for the raster drawing. If not provided,this will use the Agg backend (which is currently the only viableoption anyway.)

start_rasterizing()[source]#

Enter "raster" mode. All subsequent drawing commands (untilstop_rasterizing is called) will be drawn with the raster backend.

stop_rasterizing()[source]#

Exit "raster" mode. All of the drawing that was done sincethe laststart_rasterizing call will be copied to thevector backend by calling draw_image.