matplotlib.backends.backend_svg.FigureCanvas
class matplotlib.backends.backend_svg.FigureCanvasSVG(figure)
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Bases: matplotlib.backend_bases.FigureCanvasBase
filetypes = {'svg': 'Scalable Vector Graphics', 'svgz': 'Scalable Vector Graphics'}
fixed_dpi = 72
get_default_filetype()
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Get the default savefig file format as specified in rcParam savefig.format
. Returned string excludes period. Overridden in backends that only support a single file type.
print_svg(filename, *args, **kwargs)
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print_svgz(filename, *args, **kwargs)
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class matplotlib.backends.backend_svg.RendererSVG(width, height, svgwriter, basename=None, image_dpi=72)
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Bases: matplotlib.backend_bases.RendererBase
close_group(s)
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Close a grouping element with label s Is only currently used by backend_svg
draw_gouraud_triangle(gc, points, colors, trans)
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Draw a Gouraud-shaded triangle.
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draw_gouraud_triangles(gc, triangles_array, colors_array, transform)
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Draws a series of Gouraud triangles.
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draw_image(gc, x, y, im, transform=None)
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Draw an RGBA image.
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draw_markers(gc, marker_path, marker_trans, path, trans, rgbFace=None)
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Draws a marker at each of the vertices in path. This includes all vertices, including control points on curves. To avoid that behavior, those vertices should be removed before calling this function.
This provides a fallback implementation of draw_markers that makes multiple calls to draw_path()
. Some backends may want to override this method in order to draw the marker only once and reuse it multiple times.
Parameters: |
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draw_path(gc, path, transform, rgbFace=None)
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Draws a Path
instance using the given affine transform.
draw_path_collection(gc, master_transform, paths, all_transforms, offsets, offsetTrans, facecolors, edgecolors, linewidths, linestyles, antialiaseds, urls, offset_position)
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Draws a collection of paths selecting drawing properties from the lists facecolors, edgecolors, linewidths, linestyles and antialiaseds. offsets is a list of offsets to apply to each of the paths. The offsets in offsets are first transformed by offsetTrans before being applied. offset_position may be either "screen" or "data" depending on the space that the offsets are in.
This provides a fallback implementation of draw_path_collection()
that makes multiple calls to draw_path()
. Some backends may want to override this in order to render each set of path data only once, and then reference that path multiple times with the different offsets, colors, styles etc. The generator methods _iter_collection_raw_paths()
and _iter_collection()
are provided to help with (and standardize) the implementation across backends. It is highly recommended to use those generators, so that changes to the behavior of draw_path_collection()
can be made globally.
draw_tex(gc, x, y, s, prop, angle, ismath='TeX!', mtext=None)
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draw_text(gc, x, y, s, prop, angle, ismath=False, mtext=None)
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Draw the text instance
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backend implementers note
When you are trying to determine if you have gotten your bounding box right (which is what enables the text layout/alignment to work properly), it helps to change the line in text.py:
if 0: bbox_artist(self, renderer)
to if 1, and then the actual bounding box will be plotted along with your text.
finalize()
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flipy()
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Return true if y small numbers are top for renderer Is used for drawing text (matplotlib.text
) and images (matplotlib.image
) only
get_canvas_width_height()
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return the canvas width and height in display coords
get_image_magnification()
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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_text_width_height_descent(s, prop, ismath)
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Get the width, height, and descent (offset from the bottom to the baseline), in display coords, of the string s with FontProperties
prop
open_group(s, gid=None)
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Open a grouping element with label s. If gid is given, use gid as the id of the group.
option_image_nocomposite()
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return whether to generate a composite image from multiple images on a set of axes
option_scale_image()
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override this method for renderers that support arbitrary affine transformations in draw_image()
(most vector backends).
class matplotlib.backends.backend_svg.XMLWriter(file)
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Bases: object
close(id)
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comment(comment)
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data(text)
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element(tag, text=None, attrib={}, **extra)
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end(tag=None, indent=True)
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flush()
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start(tag, attrib={}, **extra)
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matplotlib.backends.backend_svg.escape_attrib(s)
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matplotlib.backends.backend_svg.escape_cdata(s)
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matplotlib.backends.backend_svg.escape_comment(s)
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matplotlib.backends.backend_svg.generate_css(attrib={})
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matplotlib.backends.backend_svg.generate_transform(transform_list=[])
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matplotlib.backends.backend_svg.short_float_fmt(x)
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Create a short string representation of a float, which is %f formatting with trailing zeros and the decimal point removed.
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Licensed under the Matplotlib License Agreement.
https://matplotlib.org/3.0.0/api/backend_svg_api.html