Method x_to_value

src/classes/cls_graph.rs:153–158

Map an X coordinate to a value in x_range

(&self, x: u16, width: u16)

    /// Map an X coordinate to a value in x_range
    fn x_to_value(&self, x: u16, width: u16) -> f32 {
        let (start, end) = self.x_range;
        let denom = if width > 1 { (width - 1) as f32 } else { 1.0 };
        let normalized = x as f32 / denom;
        start + normalized * (end - start)
    }

    /// Map a value to a vertical level (0-4) for Braille rendering
    fn value_to_level(&self, value: f32, height: u16, cell_y: u16) -> usize {