Method draw_cursor

egui_plot/src/plot.rs:1390–1420

(
        cursors: &[Cursor],
        always: bool,
        shapes: &mut Vec<Shape>,
        line_color: Color32,
        draw_cursor_xy: Vec2b,
        transform: &PlotTransform,
    )

    }

    fn draw_cursor(
        cursors: &[Cursor],
        always: bool,
        shapes: &mut Vec<Shape>,
        line_color: Color32,
        draw_cursor_xy: Vec2b,
        transform: &PlotTransform,
    ) {
        for &cursor in cursors {
            match cursor {
                Cursor::Horizontal { y } => {
                    if draw_cursor_xy.y || always {
                        shapes.push(horizontal_line(
                            transform.position_from_point(&PlotPoint::new(0.0, y)),
                            transform,
                            line_color,
                        ));
                    }
                }
                Cursor::Vertical { x } => {
                    if draw_cursor_xy.x || always {
                        shapes.push(vertical_line(
                            transform.position_from_point(&PlotPoint::new(x, 0.0)),
                            transform,
                            line_color,
                        ));
                    }
                }
            }
        }
    }

    fn show_coordinates(
        ui: &Ui,