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- matplotlib.backend_bases.FigureCanvasBase
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- FigureCanvasSVG
- matplotlib.backend_bases.FigureManagerBase
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- FigureManagerSVG
- FigureManagerSVG
- matplotlib.backend_bases.GraphicsContextBase
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- GraphicsContextSVG
- matplotlib.backend_bases.RendererBase
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- RendererSVG
class FigureCanvasSVG(matplotlib.backend_bases.FigureCanvasBase) |
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Methods defined here:
- draw(self)
- print_figure(self, filename, dpi=80, facecolor='w', edgecolor='w', orientation='portrait')
Methods inherited from matplotlib.backend_bases.FigureCanvasBase:
- __init__(self, figure)
- 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_cursor(self, event)
- Draw a cursor in the event.axes if inaxes is not None. Use
native GUI drawing for efficiency if possible
- draw_idle(self, *args, **kwargs)
- draw only if idle; defaults to draw but backends can overrride
- 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 mouse
button release. 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
'key_press_event'
'button_press_event'
'button_release_event'
'motion_notify_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)
- Connect s to func. return an id that can be used with disconnect
Method should return None
- 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 = ('key_press_event', 'key_release_event', 'button_press_event', 'button_release_event', 'motion_notify_event')
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class GraphicsContextSVG(matplotlib.backend_bases.GraphicsContextBase) |
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Methods defined here:
- get_capstyle(self)
- one of butt/round/square/none
Methods inherited from matplotlib.backend_bases.GraphicsContextBase:
- __init__(self)
- 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_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_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_alpha(self, alpha)
- Set the alpha value used for blending - not supported on
all backends
- set_antialiased(self, b)
- True if object should be drawn with antialiased rendering
- set_capstyle(self, cs)
- Set the capstyle as a string in ('butt', 'round', 'projecting')
- set_clip_rectangle(self, rectangle)
- Set the clip rectangle with sequence (left, bottom, width, height)
- set_dashes(self, dash_offset, dash_list)
- Set the dash style for the gc.
dash_offset is the offset (usually 0).
dash_list specifies the on-off sequence as points
(None, None) specifies a solid line
- set_foreground(self, fg, isRGB=False)
- Set the foreground color. fg can be a matlab format string, a
html hex color string, an rgb unit tuple, or a float between 0
and 1. In the latter case, grayscale is used.
The GraphicsContext converts colors to rgb internally. If you
know the color is rgb already, you can set isRGB to True to
avoid the performace hit of the conversion
- set_graylevel(self, frac)
- Set the foreground color to be a gray level with frac frac
- set_joinstyle(self, js)
- Set the join style to be one of ('miter', 'round', 'bevel')
- set_linestyle(self, style)
- Set the linestyle to be one of ('solid', 'dashed', 'dashdot',
'dotted').
- set_linewidth(self, w)
- Set the linewidth in points
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 RendererSVG(matplotlib.backend_bases.RendererBase) |
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Methods defined here:
- __init__(self, width, height, svgwriter, basename='_svg')
- close_group(self, s)
- close a grouping element with label s
- draw_arc(self, gc, rgbFace, x, y, width, height, angle1, angle2)
- Draw a circle at x,y of diameter 'width'
- draw_image(self, x, y, im, origin, bbox)
- draw_line(self, gc, x1, y1, x2, y2)
- Draw a single line from x1,y1 to x2,y2
- draw_lines(self, gc, x, y)
- x and y are equal length arrays, draw lines connecting each
point in x, y
- draw_mathtext(self, gc, x, y, s, prop, angle)
- Draw math text using matplotlib.mathtext
- draw_point(self, gc, x, y)
- Draw a point at 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)
- draw text
- finish(self)
- flipy(self)
- get_canvas_width_height(self)
- get_text_width_height(self, s, prop, ismath)
- get the width and height in display coords of the string s
with FontPropertry prop
- new_gc(self)
- Return an instance of a GraphicsContextTemplate
- open_group(self, s)
- open a grouping element with label s
Methods inherited from matplotlib.backend_bases.RendererBase:
- 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 =
(x0, y0), (x1, y1), ... (xm, ym). 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 a list 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
- 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
- get_text_extent(self, text)
- Get the text extent in window coords
- points_to_pixels(self, points)
- Convert points to display units
points - a float or a numerix array of float
return points converted to pixels
You need to override this function (unless your backend doesn't have a
dpi, eg, postscript or svg).
Some imaging systems assume some value for pixels per inch.
points to pixels = points * pixels_per_inch/72.0 * dpi/72.0
- strip_math(self, s)
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