cairo.surface.Surface svgSurfaceCreate(string filename, double widthInPoints, double heightInPoints)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.Surface.setMimeData) when it is used as a source pattern for drawing on this surface: cairo.types.MIME_TYPE_JPEG, cairo.types.MIME_TYPE_PNG, cairo.types.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.types.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.types.MIME_TYPE_URI is not present, but cairo.types.MIME_TYPE_JPEG or cairo.types.MIME_TYPE_PNG is specified, the corresponding data is Base64-encoded and emitted.
If cairo.types.MIME_TYPE_UNIQUE_ID is present, all surfaces with the same unique identifier will only be embedded once.
filename | a filename for the SVG output (must be writable), null may 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. |
widthInPoints | width of the surface, in points (1 point == 1/72.0 inch) |
heightInPoints | height of the surface, in points (1 point == 1/72.0 inch) |
owns the surface and should call cairo.surface.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.Surface.status to check for this.