animate/canvas/rough/fillers/
zigzag_line.rs

1use super::RenderHelper;
2use crate::{
3  canvas::rough::{geometry::line_length, Line, Op, OpSet, RoughOptions},
4  Point,
5};
6
7//implements PatternFiller
8pub struct ZigZagLineFiller<H: RenderHelper> {
9  helper: H
10}
11
12impl<H: RenderHelper> ZigZagLineFiller<H> {
13  pub fn new(helper: H) -> Self {
14    Self { helper }
15  }
16
17  fn fill_polygon(points: Vec<Point<f64>>, options: &RoughOptions) -> OpSet {
18    // let gap = o.hachureGap < 0 ? (o.strokeWidth * 4) : o.hachureGap;
19    // let zo = o.zigzagOffset < 0 ? gap : o.zigzagOffset;
20    // o = Object.assign({}, o, { hachureGap: gap + zo });
21    // let lines = polygonHachureLines(points, o);
22    // return { type: 'fillSketch', ops: self.zigzagLines(lines, zo, o) };
23    unimplemented!()
24  }
25
26  fn zigzag_lines(lines: Vec<Line<f64>>, zo: f64, options: &RoughOptions) -> Vec<Op> {
27    // let ops: Op[] = [];
28    // lines.forEach((line) => {
29    //   let length = line_length(line);
30    //   let count = Math.round(length / (2 * zo));
31    //   let p1 = line[0];
32    //   let p2 = line[1];
33    //   if (p1[0] > p2[0]) {
34    //     p1 = line[1];
35    //     p2 = line[0];
36    //   }
37    //   let alpha = Math.atan((p2[1] - p1[1]) / (p2[0] - p1[0]));
38    //   for (let i = 0; i < count; i++) {
39    //     let lstart = i * 2 * zo;
40    //     let lend = (i + 1) * 2 * zo;
41    //     let dz = Math.sqrt(2 * Math.pow(zo, 2));
42    //     let start: Point = [p1[0] + (lstart * Math.cos(alpha)), p1[1] + lstart * Math.sin(alpha)];
43    //     let end: Point = [p1[0] + (lend * Math.cos(alpha)), p1[1] + (lend * Math.sin(alpha))];
44    //     let middle: Point = [start[0] + dz * Math.cos(alpha + Math.PI / 4), start[1] + dz * Math.sin(alpha + Math.PI / 4)];
45    //     ops.push(
46    //       ...self.helper.doubleLineOps(start[0], start[1], middle[0], middle[1], o),
47    //       ...self.helper.doubleLineOps(middle[0], middle[1], end[0], end[1], o)
48    //     );
49    //   }
50    // });
51    // return ops;
52    unimplemented!()
53  }
54}
animate/canvas/rough/fillers/zigzag_line.rs

animate/canvas/rough/fillers/
zigzag_line.rs
