Function test_text_3d

tests/test_text.rs:81–110

()

#[test]
fn test_text_3d() -> Result<(), StrError> {
    // text object and options
    let mut text = Text::new();
    text.set_color("blue")
        .set_align_horizontal("center")
        .set_align_vertical("center")
        .set_fontsize(32.0)
        .set_bbox(true)
        .set_bbox_facecolor("pink")
        .set_bbox_edgecolor("black")
        .set_bbox_alpha(0.3);

    // draw text
    text.draw_3d(0.5, 0.5, 0.5, "message: $\\frac{\\alpha}{\\beta} = \\gamma$");

    // add text to plot
    let mut plot = Plot::new();
    plot.add(&text);

    // save figure
    let path = Path::new(OUT_DIR).join("integ_text_3d.svg");
    plot.save(&path)?;

    // check number of lines
    let file = File::open(path).map_err(|_| "cannot open file")?;
    let buffered = BufReader::new(file);
    let lines_iter = buffered.lines();
    assert!(lines_iter.count() > 800);
    Ok(())
}