ggplot_rs/render/
mod.rs

1pub mod backend;
2pub mod layout;
3// Self-contained RGBA raster backend for large-N (feature `canvas`); wasm-ok.
4#[cfg(feature = "canvas")]
5pub mod pixel_backend;
6// The plotters backend (PNG/bitmap + SVG via plotters) isn't available on wasm
7// (no bitmap/font-registration API there); the browser uses `svg_backend`.
8#[cfg(all(feature = "plotters", not(target_arch = "wasm32")))]
9pub mod plotters_backend;
10pub mod renderer;
11pub mod svg_backend;
12pub mod text;
13
14/// A rectangle in pixel coordinates.
15#[derive(Clone, Debug)]
16pub struct Rect {
17    pub x: f64,
18    pub y: f64,
19    pub width: f64,
20    pub height: f64,
21}
22
23/// Rendering error type.
24#[derive(Debug)]
25#[non_exhaustive]
26pub enum RenderError {
27    MissingAesthetic(String),
28    BackendError(String),
29    IoError(std::io::Error),
30}
31
32impl std::fmt::Display for RenderError {
33    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
34        match self {
35            RenderError::MissingAesthetic(a) => write!(f, "Missing required aesthetic: {a}"),
36            RenderError::BackendError(e) => write!(f, "Backend error: {e}"),
37            RenderError::IoError(e) => write!(f, "IO error: {e}"),
38        }
39    }
40}
41
42impl std::error::Error for RenderError {}
43
44impl From<std::io::Error> for RenderError {
45    fn from(e: std::io::Error) -> Self {
46        RenderError::IoError(e)
47    }
48}
ggplot_rs/render/mod.rs

ggplot_rs/render/
mod.rs
