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Bezier-rs: Add project function for Subpaths (#914)

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* Added subpath project function

* Set appropriate project default in single manipulator group case

* Lint

* Return optional from subpath project + stylistic changes per review

Co-authored-by: Keavon Chambers <keavon@keavon.com>
This commit is contained in:
Rob Nadal
2022-12-29 18:32:22 -05:00
committed by Keavon Chambers
co-authored by Keavon Chambers
parent 0d703e857b
commit 72cd204c64
5 changed files with 59 additions and 5 deletions
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website/other/bezier-rs-demos/wasm/src/subpath.rs
+10 -1
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@@ -1,6 +1,6 @@
use crate::svg_drawing::*;
use bezier_rs::{Bezier, ComputeType, ManipulatorGroup, Subpath};
use bezier_rs::{Bezier, ComputeType, ManipulatorGroup, ProjectionOptions, Subpath};
use glam::DVec2;
use wasm_bindgen::prelude::*;
@@ -68,6 +68,15 @@ impl WasmSubpath {
wrap_svg_tag(format!("{}{}", self.to_default_svg(), point_text))
}
pub fn project(&self, x: f64, y: f64) -> String {
let (segment_index, projected_t) = self.0.project(DVec2::new(x, y), ProjectionOptions::default()).unwrap();
let projected_point = self.0.evaluate(ComputeType::Parametric((segment_index as f64 + projected_t) / (self.0.len_segments() as f64)));
let subpath_svg = self.to_default_svg();
let content = format!("{subpath_svg}{}", draw_line(projected_point.x, projected_point.y, x, y, RED, 1.),);
wrap_svg_tag(content)
}
pub fn intersect_line_segment(&self, js_points: JsValue) -> String {
let points: [DVec2; 2] = serde_wasm_bindgen::from_value(js_points).unwrap();
let line = Bezier::from_linear_dvec2(points[0], points[1]);