47 lines
1.4 KiB
Rust
47 lines
1.4 KiB
Rust
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use cairo::{Context, Path};
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pub fn hexagon_path(
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context: &Context,
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translate_x: f64,
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translate_y: f64,
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width: f64,
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height: f64,
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) -> Path {
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context.new_path();
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let points = hexagon(width, height);
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context.move_to(translate_x + points[0].0, translate_y + points[0].1);
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context.line_to(translate_x + points[1].0, translate_y + points[1].1);
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context.line_to(translate_x + points[2].0, translate_y + points[2].1);
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context.line_to(translate_x + points[3].0, translate_y + points[3].1);
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context.line_to(translate_x + points[4].0, translate_y + points[4].1);
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context.line_to(translate_x + points[5].0, translate_y + points[5].1);
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context.copy_path().expect("to successfully copy a path")
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}
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pub fn hexagon(width: f64, height: f64) -> Vec<(f64, f64)> {
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let center_x = width / 2.;
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let center_y = height / 2.;
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let radius = width / 2.;
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vec![
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(center_x + radius, center_y),
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(
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center_x + radius / 2.,
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center_y + (3. as f64).sqrt() * radius / 2.,
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),
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(
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center_x - radius / 2.,
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center_y + (3. as f64).sqrt() * radius / 2.,
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),
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(center_x - radius, center_y),
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(
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center_x - radius / 2.,
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center_y - (3. as f64).sqrt() * radius / 2.,
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),
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(
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center_x + radius / 2.,
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center_y - (3. as f64).sqrt() * radius / 2.,
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),
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]
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}
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