| GooCanvas Reference Manual | ||||
|---|---|---|---|---|
GooCanvasPath;
GooCanvasItem* goo_canvas_path_new (GooCanvasItem *parent,
const gchar *path_data,
...);
GooCanvasPath represents a path item, which is a series of one or more lines, bezier curves, or elliptical arcs.
It is a subclass of GooCanvasItemSimple and so inherits all of the style properties such as "stroke-color", "fill-color" and "line-width".
It also implements the GooCanvasItem interface, so you can use the
GooCanvasItem functions such as goo_canvas_item_raise() and
goo_canvas_item_rotate().
GooCanvasPath uses the same path specification strings as the Scalable Vector Graphics (SVG) path element. For details see the SVG specification.
To create a GooCanvasPath use goo_canvas_path_new().
To get or set the properties of an existing GooCanvasPath, use
g_object_get() and g_object_set().
typedef struct _GooCanvasPath GooCanvasPath;
The GooCanvasPath struct contains private data only.
GooCanvasItem* goo_canvas_path_new (GooCanvasItem *parent, const gchar *path_data, ...);
Creates a new path item.
|
the parent item, or NULL. If a parent is specified, it will assume
ownership of the item, and the item will automatically be freed when it is
removed from the parent. Otherwise call g_object_unref() to free it.
|
|
the sequence of path commands, specified as a string using the same syntax as in the Scalable Vector Graphics (SVG) path element. |
|
optional pairs of property names and values, and a terminating NULL.
|
Returns : |
a new path item. |
Here's an example showing how to create a red line from (20,20) to (40,40):
GooCanvasItem *path = goo_canvas_path_new (mygroup,
"M 20 20 L 40 40",
"stroke-color", "red",
NULL);
This example creates a cubic bezier curve from (20,100) to (100,100) with the control points at (20,50) and (100,50):
GooCanvasItem *path = goo_canvas_path_new (mygroup,
"M20,100 C20,50 100,50 100,100",
"stroke-color", "blue",
NULL);
This example uses an elliptical arc to create a filled circle with one quarter missing:
GooCanvasItem *path = goo_canvas_path_new (mygroup,
"M200,500 h-150 a150,150 0 1,0 150,-150 z",
"fill-color", "red",
"stroke-color", "blue",
"line-width", 5.0,
NULL);
"data" property"data" gchararray : Write
The sequence of path commands, specified as a string using the same syntax as in the Scalable Vector Graphics (SVG) path element.
Default value: NULL