plottery_lib 0.12.0

Core geometry library of Plottery, a creative coding framework for generative vector graphics and pen plotting.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

use crate::V2;

use super::Translate;

pub trait Scale: Translate {
    #[must_use]
    fn scale(&self, factor: f32) -> Self;
    fn scale_mut(&mut self, factor: f32) {
        *self = self.scale(factor);
    }

    /// Scales with `pivot` staying in place.
    #[must_use]
    fn scale_around(&self, pivot: V2, factor: f32) -> Self {
        self.translate(-pivot).scale(factor).translate(pivot)
    }
    fn scale_around_mut(&mut self, pivot: V2, factor: f32) {
        *self = self.scale_around(pivot, factor);
    }
}