jagua_rs/geometry/
original_shape.rs

1use crate::geometry::DTransformation;
2use crate::geometry::geo_traits::Transformable;
3use crate::geometry::primitives::{Point, Rect, SPolygon};
4use crate::geometry::shape_modification::{
5    ShapeModifyConfig, ShapeModifyMode, close_narrow_concavities, offset_shape,
6    shape_modification_valid, simplify_shape,
7};
8use anyhow::Result;
9
10#[derive(Clone, Debug)]
11/// A [`SPolygon`] exactly as is defined in the input file
12///
13/// Also contains all required operation to convert it to a shape that can be used internally.
14/// Currently, these are centering and simplification operations, but could be extended in the future.
15pub struct OriginalShape {
16    pub shape: SPolygon,
17    pub pre_transform: DTransformation,
18    pub modify_mode: ShapeModifyMode,
19    pub modify_config: ShapeModifyConfig,
20}
21
22impl OriginalShape {
23    pub fn convert_to_internal(&self) -> Result<SPolygon> {
24        // Apply the transformation
25        let mut internal = self.shape.transform_clone(&self.pre_transform.compose());
26
27        if let Some(offset) = self.modify_config.offset {
28            // Offset the shape
29            if offset != 0.0 {
30                internal = offset_shape(&internal, self.modify_mode, offset)?;
31            }
32        }
33        if let Some(tolerance) = self.modify_config.simplify_tolerance {
34            let pre_simplified = internal.clone();
35            // Simplify the shape
36            internal = simplify_shape(&internal, self.modify_mode, tolerance);
37            if let Some(max_concav_dist) = self.modify_config.narrow_concavity_cutoff_ratio {
38                // Close narrow concavities
39                internal = close_narrow_concavities(&internal, self.modify_mode, max_concav_dist);
40                // Do another simplification after closing concavities
41                internal = simplify_shape(&internal, self.modify_mode, tolerance / 10.0);
42            }
43            debug_assert!(shape_modification_valid(
44                &pre_simplified,
45                &internal,
46                self.modify_mode
47            ));
48        }
49
50        Ok(internal)
51    }
52
53    pub fn centroid(&self) -> Point {
54        self.shape.centroid()
55    }
56
57    pub fn area(&self) -> f32 {
58        self.shape.area
59    }
60
61    pub fn bbox(&self) -> Rect {
62        self.shape.bbox
63    }
64
65    pub fn diameter(&self) -> f32 {
66        self.shape.diameter
67    }
68}
jagua_rs/geometry/original_shape.rs

jagua_rs/geometry/
original_shape.rs
