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Bezier-rs: Subpath offset and bezier offset improvements (#1039)

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* Added subpath offset

* Enhanced offset to produce smooth curves

* Lots of outline bugfixes

* Fixed failing unit tests

* Added subpath outline

* Refactor bezier offset and outline to return Subpaths

* Fix outline bug due to smooth joining and removed reduce optimization that causes jumping approximations

* Bugfix when subpath angle is acute but doesn't intersect

* Stylistic changes per review

* Stylistic changes per review and updated doc comments

---------

Co-authored-by: Hannah Li <hannahli2010@gmail.com>
Co-authored-by: Keavon Chambers <keavon@keavon.com>
This commit is contained in:
Rob Nadal
2023-03-03 14:21:21 -05:00
committed by GitHub
co-authored by Hannah Li Keavon Chambers
parent 0512cb249f
commit 2fd5c26450
16 changed files with 611 additions and 168 deletions
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website/other/bezier-rs-demos/wasm/src/svg_drawing.rs
-15
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@@ -1,6 +1,4 @@
use bezier_rs::Bezier;
use glam::DVec2;
use std::fmt::Write;
// SVG drawing constants
pub const SVG_OPEN_TAG: &str = r#"<svg xmlns="http://www.w3.org/2000/svg" width="200px" height="200px">"#;
@@ -48,19 +46,6 @@ pub fn draw_line(start_x: f64, start_y: f64, end_x: f64, end_y: f64, stroke: &st
format!(r#"<line x1="{start_x}" y1="{start_y}" x2="{end_x}" y2="{end_y}" stroke="{stroke}" stroke-width="{stroke_width}"/>"#)
}
/// Helper function to draw a list of beziers.
pub fn draw_beziers(beziers: Vec<Bezier>, options: String) -> String {
let start_point = beziers.first().unwrap().start();
let mut svg = format!("<path d=\"M {} {}", start_point.x, start_point.y);
beziers.iter().for_each(|bezier| {
let _ = write!(svg, " {}", bezier.svg_curve_argument());
});
let _ = write!(svg, " Z\" {}/>", options);
svg
}
// Helper function to convert polar to cartesian coordinates
fn polar_to_cartesian(center_x: f64, center_y: f64, radius: f64, angle_in_rad: f64) -> [f64; 2] {
let x = center_x + radius * angle_in_rad.cos();