Rendering SVG documents
The SVG surface is used to render cairo graphics to SVG files and is a multi-page vector surface backend.
<double>) ⇒ (ret
Creates a SVG surface of the specified size in points to be written to filename.
The SVG surface backend recognizes the following MIME types for the data
attached to a surface (see
cairo-surface-set-mime-data) when it
is used as a source pattern for drawing on this surface:
‘CAIRO_MIME_TYPE_URI’. If any of them is specified, the SVG backend
emits a href with the content of MIME data instead of a surface snapshot
(PNG, Base64-encoded) in the corresponding image tag.
The unofficial MIME type ‘CAIRO_MIME_TYPE_URI’ is examined first. If present, the URI is emitted as is: assuring the correctness of URI is left to the client code.
If ‘CAIRO_MIME_TYPE_URI’ is not present, but ‘CAIRO_MIME_TYPE_JPEG’ or ‘CAIRO_MIME_TYPE_PNG’ is specified, the corresponding data is Base64-encoded and emitted.
a filename for the SVG output (must be writable), ‘
be used to specify no output. This will generate a SVG surface that may
be queried and used as a source, without generating a temporary file.
width of the surface, in points (1 point == 1/72.0 inch)
height of the surface, in points (1 point == 1/72.0 inch)
a pointer to the newly created surface. The caller owns the surface and
cairo-surface-destroy when done with it. This
function always returns a valid pointer, but it will return a pointer to
a "nil" surface if an error such as out of memory occurs. You can use
cairo-surface-status to check for this.