Lapin Raving
08e78b9a88
* Rotate to rotate the image, !! Some point could be outside of the 0-4096 range on x and y !! you should parameter a center and an angle. All the point will move around the center. The angle is un degre. * Flip vertical: flip all the point verticaly. You should parameter an height where all point will flip * Flip horizontaly. You should parameter an X corrodinate where all point will flip around.
40 lines
888 B
Rust
40 lines
888 B
Rust
use crate::transformer::Transformers;
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use crate::point::Point;
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use serde::{Serialize,Deserialize};
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use std::f32::consts::PI;
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/// Rotate
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#[derive(Serialize,Deserialize,Debug,Clone,Copy)]
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pub struct Rotate {
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cx: f32,
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cy: f32,
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angle: f32,
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}
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impl Rotate {
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pub fn new(cx: f32, cy: f32, angle: f32) -> Self {
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Self { cx, cy, angle: angle / 180. * PI}
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}
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}
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impl Transformers for Rotate {
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fn apply(&self, point_list: &[Point]) -> Vec<Point> {
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point_list.iter()
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.map(| pt | {
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let dx = (pt.x - self.cx);
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let dy = (pt.y - self.cy);
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let cos = self.angle.cos();
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let sin = self.angle.sin();
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let x = (dx * cos - dy * sin) + self.cx;
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let y = (dx * sin + dy * cos) + self.cy;
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Point { x,
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y,
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..*pt
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}
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}).collect()
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}
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}
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