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- matplotlib.backend_bases.FigureCanvasBase
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- FigureCanvasCairo
- matplotlib.backend_bases.GraphicsContextBase
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- GraphicsContextCairo
- matplotlib.backend_bases.RendererBase
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- RendererCairo
class FigureCanvasCairo(matplotlib.backend_bases.FigureCanvasBase) |
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Methods defined here:
- print_figure(self, fo, dpi=150, facecolor='w', edgecolor='w', orientation='portrait', format=None, **kwargs)
Methods inherited from matplotlib.backend_bases.FigureCanvasBase:
- __init__(self, figure)
- blit(self, bbox=None)
- blit the canvas in bbox (default entire canvas)
- button_press_event(self, x, y, button, guiEvent=None)
- Backend derived classes should call this function on any mouse
button press. x,y are the canvas coords: 0,0 is lower, left.
button and key are as defined in MouseEvent
- button_release_event(self, x, y, button, guiEvent=None)
- Backend derived classes should call this function on any mouse
button release. x,y are the canvas coords: 0,0 is lower, left.
button and key are as defined in MouseEvent
- draw(self, *args, **kwargs)
- Render the figure
- draw_cursor(self, event)
- Draw a cursor in the event.axes if inaxes is not None. Use
native GUI drawing for efficiency if possible
- draw_event(self, renderer)
- draw_idle(self, *args, **kwargs)
- draw only if idle; defaults to draw but backends can overrride
- get_width_height(self)
- return the figure width and height in points or pixels
(depending on the backend), truncated to integers
- key_press_event(self, key, guiEvent=None)
- key_release_event(self, key, guiEvent=None)
- motion_notify_event(self, x, y, guiEvent=None)
- Backend derived classes should call this function on any
motion-notify-event. x,y are the canvas coords: 0,0 is lower, left.
button and key are as defined in MouseEvent
- mpl_connect(self, s, func)
- Connect event with string s to func. The signature of func is
def func(event)
where event is a MplEvent. The following events are recognized
'resize_event',
'draw_event',
'key_press_event',
'key_release_event',
'button_press_event',
'button_release_event',
'motion_notify_event',
'pick_event',
For the three events above, if the mouse is over the axes,
the variable event.inaxes will be set to the axes it is over,
and additionally, the variables event.xdata and event.ydata
will be defined. This is the mouse location in data coords.
See backend_bases.MplEvent.
return value is a connection id that can be used with
mpl_disconnect
- mpl_disconnect(self, cid)
- disconnect callback id cid
- pick_event(self, mouseevent, artist, **kwargs)
- This method will be called by artists who are picked and will
fire off PickEvent callbacks registered listeners
- resize(self, w, h)
- set the canvas size in pixels
- resize_event(self)
- switch_backends(self, FigureCanvasClass)
- instantiate an instance of FigureCanvasClass
This is used for backend switching, eg, to instantiate a
FigureCanvasPS from a FigureCanvasGTK. Note, deep copying is
not done, so any changes to one of the instances (eg, setting
figure size or line props), will be reflected in the other
Data and other attributes inherited from matplotlib.backend_bases.FigureCanvasBase:
- events = ('resize_event', 'draw_event', 'key_press_event', 'key_release_event', 'button_press_event', 'button_release_event', 'motion_notify_event', 'pick_event')
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class GraphicsContextCairo(matplotlib.backend_bases.GraphicsContextBase) |
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Methods defined here:
- __init__(self, renderer)
- set_alpha(self, alpha)
- set_capstyle(self, cs)
- set_clip_rectangle(self, rectangle)
- set_dashes(self, offset, dashes)
- set_foreground(self, fg, isRGB=None)
- set_graylevel(self, frac)
- set_joinstyle(self, js)
- set_linewidth(self, w)
Methods inherited from matplotlib.backend_bases.GraphicsContextBase:
- copy_properties(self, gc)
- Copy properties from gc to self
- get_alpha(self)
- Return the alpha value used for blending - not supported on
all backends
- get_antialiased(self)
- Return true if the object should try to do antialiased rendering
- get_capstyle(self)
- Return the capstyle as a string in ('butt', 'round', 'projecting')
- get_clip_path(self)
- Return the clip path
- get_clip_rectangle(self)
- Return the clip rectangle as (left, bottom, width, height)
- get_dashes(self)
- Return the dash information as an offset dashlist tuple The
dash list is a even size list that gives the ink on, ink off
in pixels. See p107 of to postscript BLUEBOOK for more info
Default value is None
- get_hatch(self)
- Gets the current hatch style
- get_joinstyle(self)
- Return the line join style as one of ('miter', 'round', 'bevel')
- get_linestyle(self, style)
- Return the linestyle: one of ('solid', 'dashed', 'dashdot',
'dotted').
- get_linewidth(self)
- Return the line width in points as a scalar
- get_rgb(self)
- returns a tuple of three floats from 0-1. color can be a
matlab format string, a html hex color string, or a rgb tuple
- set_antialiased(self, b)
- True if object should be drawn with antialiased rendering
- set_clip_path(self, path)
- Set the clip path
- set_hatch(self, hatch)
- Sets the hatch style for filling
- set_linestyle(self, style)
- Set the linestyle to be one of ('solid', 'dashed', 'dashdot',
'dotted').
Data and other attributes inherited from matplotlib.backend_bases.GraphicsContextBase:
- dashd = {'dashdot': (0, (3.0, 5.0, 1.0, 5.0)), 'dashed': (0, (6.0, 6.0)), 'dotted': (0, (1.0, 3.0)), 'solid': (None, None)}
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class RendererCairo(matplotlib.backend_bases.RendererBase) |
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Methods defined here:
- __init__(self, dpi)
- draw_arc(self, gc, rgbFace, x, y, width, height, angle1, angle2, rotation)
- draw_image(self, x, y, im, bbox)
- draw_line(self, gc, x1, y1, x2, y2)
- draw_lines(self, gc, x, y, transform=None)
- draw_markers_OLD(self, gc, path, rgbFace, x, y, transform)
- draw_point(self, gc, x, y)
- draw_polygon(self, gc, rgbFace, points)
- draw_rectangle(self, gc, rgbFace, x, y, width, height)
- draw_text(self, gc, x, y, s, prop, angle, ismath=False)
- flipy(self)
- get_canvas_width_height(self)
- get_text_width_height(self, s, prop, ismath)
- new_gc(self)
- points_to_pixels(self, points)
- set_ctx_from_surface(self, surface)
- set_width_height(self, width, height)
Data and other attributes defined here:
- fontangles = {'italic': 1, 'normal': 0, 'oblique': 2}
- fontweights = {100: 0, 200: 0, 300: 0, 400: 0, 500: 0, 600: 1, 700: 1, 800: 1, 900: 1, 'black': 1, ...}
Methods inherited from matplotlib.backend_bases.RendererBase:
- close_group(self, s)
- close a grouping element with label s
Is only currently used by backend_svg
- draw_line_collection(self, segments, transform, clipbox, colors, linewidths, linestyle, antialiaseds, offsets, transOffset)
- This is a function for optimized line drawing. If you need to draw
many line segments with similar properties, it is faster to avoid the
overhead of all the object creation etc. The lack of total
configurability is compensated for with efficiency. Hence we don't use
a GC and many of the line props it supports. See
matplotlib.collections for more details.
segments is a sequence of ( line0, line1, line2), where linen =
is an Mx2 array with columns x, y. Each line can be a
different length
transform is used to Transform the lines
clipbox is a xmin, ymin, width, height clip rect
colors is a tuple of RGBA tuples
linewidths is a tuple of linewidths
*** really should be called 'dashes' not 'linestyle', since
we call gc.set_dashes() not gc.set_linestyle() ***
linestyle is an (offset, onoffseq) tuple or None,None for solid
antialiseds is a tuple of ones or zeros indicating whether the
segment should be aa or not
offsets, if not None, is an Nx2 array of x,y offsets to
translate the lines by after transform is used to transform
the offset coords
This function could be overridden in the backend to possibly implement
faster drawing, but it is already much faster than using draw_lines()
by itself.
- draw_poly_collection(self, verts, transform, clipbox, facecolors, edgecolors, linewidths, antialiaseds, offsets, transOffset)
- Draw a polygon collection
verts are a sequence of polygon vectors, where each polygon
vector is a sequence of x,y tuples of vertices
facecolors and edgecolors are a sequence of RGBA tuples
linewidths are a sequence of linewidths
antialiaseds are a sequence of 0,1 integers whether to use aa
If a linewidth is zero or an edgecolor alpha is zero, the
line will be omitted; similarly, the fill will be omitted
if the facecolor alpha is zero.
- draw_quad_mesh(self, meshWidth, meshHeight, colors, xCoords, yCoords, clipbox, transform, offsets, transOffset, showedges)
- Draw a quadrilateral mesh
See documentation in QuadMesh class in collections.py for details
- draw_regpoly_collection(self, clipbox, offsets, transOffset, verts, sizes, facecolors, edgecolors, linewidths, antialiaseds)
- Draw a regular poly collection
offsets - is a sequence is x,y tuples
transOffset - maps this to display coords
verts - are the vertices of the regular polygon at the origin
sizes are the area of the circle that circumscribes the
polygon in points^2
facecolors and edgecolors are a sequence of RGBA tuples
linewidths are a sequence of linewidths
antialiaseds are a sequence of 0,1 integers whether to use aa
- draw_tex(self, gc, x, y, s, prop, angle, ismath='TeX!')
- get_image_magnification(self)
- Get the factor by which to magnify images passed to draw_image.
Allows a backend to have images at a different resolution to other
artists.
- get_texmanager(self)
- get_text_extent(self, text)
- Get the text extent in window coords
- open_group(self, s)
- open a grouping element with label s
Is only currently used by backend_svg
- option_image_nocomposite(self)
- overwrite this method for renderers that do not necessarily
want to rescale and composite raster images. (like SVG)
- strip_math(self, s)
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