SVG Decoder

The lv_svg extension provides makes it possible to use SVG images in your LVGL UI using the Scalable Vector Graphics (SVG) Tiny 1.2 Specification.

The lv_svg extension provides makes it possible to use SVG images in your LVGL UI using the Scalable Vector Graphics (SVG) Tiny 1.2 Specification.

For a detailed introduction, see: https://www.w3.org/TR/SVGTiny12/

Usage

Enable LV_USE_SVG in lv_conf.h by setting its value to 1.

See the examples below.

If you need support for SVG animation attribute parsing, you can set LV_USE_SVG_ANIMATION in lv_conf.h to 1.

As Image Source

lv_image directly supports SVG images. For example:

lv_image_set_src(widget, "S:path/to/example.svg");

Direct Rendering

It is also possible to draw SVG vector graphics in draw events:

lv_svg_node_t * svg_doc;
const char* svg_data = "<svg><rect x=\"0\" y=\"0\" width=\"100\" height=\"100\"/></svg>";

/* Create an SVG DOM tree */
svg_doc = lv_svg_load_data(svg_data, svg_len);
...

/* Draw SVG image */
lv_draw_svg(layer, svg_doc);
...

/* Release the DOM tree */
lv_svg_node_delete(svg_doc);

Examples

Load and render SVG data

Load and render SVG data from a file

Load and render SVG data in a draw event

API