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use crate::dot::DotString;
use std::borrow::Cow;
pub struct Point {
pub x: f32,
pub y: f32,
pub z: Option<f32>,
/// specify that the node position should not change.
pub force_pos: bool,
}
impl Point {
pub fn new_2d(x: f32, y: f32) -> Self {
Self::new(x, y, None, false)
}
pub fn new_3d(x: f32, y: f32, z: f32) -> Self {
Self::new(x, y, Some(z), false)
}
pub fn new(x: f32, y: f32, z: Option<f32>, force_pos: bool) -> Self {
Self { x, y, z, force_pos }
}
}
impl<'a> DotString<'a> for Point {
fn dot_string(&self) -> Cow<'a, str> {
let mut slice = format!("{:.1},{:.1}", self.x, self.y);
if self.z.is_some() {
slice.push_str(format!(",{:.1}", self.z.unwrap()).as_str());
}
if self.force_pos {
slice.push_str("!")
}
slice.into()
}
}
#[cfg(test)]
mod test {
use crate::attributes::Point;
use crate::DotString;
#[test]
fn dot_string() {
assert_eq!("1.0,2.0", Point::new_2d(1.0, 2.0).dot_string());
assert_eq!("1.0,2.0,0.0", Point::new_3d(1.0, 2.0, 0.0).dot_string());
assert_eq!("1.0,2.0!", Point::new(1.0, 2.0, None, true).dot_string());
assert_eq!(
"1.0,2.0,0.0!",
Point::new(1.0, 2.0, Some(0.0), true).dot_string()
);
}
}
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