egml_io/geometry/
multi_surface.rs

1use crate::error::Error;
2use quick_xml::de;
3use std::hash::{DefaultHasher, Hash, Hasher};
4
5use crate::geometry::polygon::GmlPolygon;
6use egml_core::model::base::{Gml, Id};
7use egml_core::model::geometry::{MultiSurface, Polygon};
8use serde::{Deserialize, Serialize};
9use tracing::warn;
10
11#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, Hash, Clone)]
12pub struct GmlMultiSurfaceProperty {
13    #[serde(rename = "$value")]
14    pub multi_surface: Option<GmlMultiSurface>,
15}
16
17#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, Hash, Clone)]
18#[serde(rename = "gml:MultiSurface")]
19pub struct GmlMultiSurface {
20    #[serde(rename = "@id", default)]
21    id: String,
22    #[serde(rename = "$value")]
23    members: Vec<GmlSurfaceMember>,
24}
25
26#[derive(Debug, Serialize, Deserialize, PartialEq, Eq, Hash, Clone)]
27#[serde(rename = "gml:surfaceMember")]
28pub struct GmlSurfaceMember {
29    #[serde(rename = "@href", default)]
30    href: String,
31    #[serde(rename = "$value")]
32    pub polygon: Option<GmlPolygon>,
33}
34
35impl TryFrom<GmlMultiSurface> for MultiSurface {
36    type Error = Error;
37
38    fn try_from(value: GmlMultiSurface) -> Result<Self, Self::Error> {
39        let id: Id = value.id.clone().try_into().ok().unwrap_or_else(|| {
40            let mut hasher = DefaultHasher::new();
41            value.hash(&mut hasher);
42            Id::from_hashed_u64(hasher.finish())
43        });
44        let gml = Gml::new(id);
45
46        let polygons: Vec<Polygon> = value
47            .members
48            .into_iter()
49            .flat_map(|x| x.polygon)
50            .flat_map(|x| {
51                let polygon_id = x.id.clone();
52                x.try_into()
53                    .map_err(|e| {
54                        warn!(
55                            "Error during parsing of gml:Polygon with id={}: {}",
56                            &polygon_id, e
57                        );
58                    })
59                    .ok()
60            })
61            .collect();
62
63        let multi_surface = MultiSurface::new(gml, polygons)?;
64        Ok(multi_surface)
65    }
66}
67
68pub fn parse_multi_surface(source_text: &str) -> Result<MultiSurface, Error> {
69    let parsed_geometry: GmlMultiSurface = de::from_str(source_text)?;
70    parsed_geometry.try_into()
71}
72
73#[cfg(test)]
74mod tests {
75    use crate::parse_multi_surface;
76
77    #[test]
78    fn parsing_multi_surface() {
79        let source_text = "<gml:MultiSurface gml:id=\"UUID_6b33ecfa-6e08-4e8e-a4b5-e1d06540faf0\">
80              <gml:surfaceMember>
81                <gml:Polygon gml:id=\"UUID_efb8f6a5-82fa-4b21-8709-c1d93ed1e595\">
82                  <gml:exterior>
83                    <gml:LinearRing>
84                      <gml:posList srsDimension=\"3\">678009.7116291433 5403638.313338383 417.3480034550211 678012.5609078613 5403634.960884141 417.34658523466385 678013.7892528991 5403636.004867206 417.51938733855997 678010.9399743223 5403639.357321232 417.5208051908512 678009.7116291433 5403638.313338383 417.3480034550211</gml:posList>
85                    </gml:LinearRing>
86                  </gml:exterior>
87                </gml:Polygon>
88              </gml:surfaceMember>
89            </gml:MultiSurface>";
90
91        let _result = parse_multi_surface(source_text).unwrap();
92    }
93
94    #[test]
95    fn parsing_multi_surface_with_duplicate_elements() {
96        let source_text = "<gml:MultiSurface srsName=\"EPSG:25832\" srsDimension=\"3\">
97              <gml:surfaceMember>
98                <gml:Polygon gml:id=\"4018133_PG.3nRTCd4XPu47PsAAUyNv\">
99                  <gml:exterior>
100                    <gml:LinearRing gml:id=\"4018133_LR.lHfcvQUrKVl08ifcH6eO\">
101                      <gml:posList>678105.792 5403815.554 369.98523 678105.792 5403815.555 367.67323 678106.047 5403815.125 367.67323 678106.047 5403815.125 367.67323 678106.047 5403815.125 367.67323 678106.047 5403815.124 369.98523 678105.792 5403815.554 369.98523</gml:posList>
102                    </gml:LinearRing>
103                  </gml:exterior>
104                </gml:Polygon>
105              </gml:surfaceMember>
106            </gml:MultiSurface>";
107
108        let _result = parse_multi_surface(source_text).unwrap();
109    }
110
111    #[test]
112    fn parsing_multi_surface_with_holes() {
113        let source_text = "
114            <gml:MultiSurface srsName=\"EPSG:25832\" srsDimension=\"3\">
115              <gml:surfaceMember>
116                <gml:Polygon gml:id=\"4018106_PG.dKY9ug9ol2tsxL5bLAPz\">
117                  <gml:exterior>
118                    <gml:LinearRing gml:id=\"4018106_LR.Wqmtl1E6Yz3eVJkuGjsK\">
119                      <gml:posList>678097.805 5403801.433 367.40123 678092.938 5403810.139 367.40123 678092.938 5403810.139 370.87623 678092.032 5403811.76 370.87623 678092.032 5403811.76 377.09023 678097.805 5403801.433 377.09023 678097.805 5403801.433 367.40123</gml:posList>
120                    </gml:LinearRing>
121                  </gml:exterior>
122                  <gml:interior>
123                    <gml:LinearRing gml:id=\"4018106_LR.10JNDsQqif3fouy54mfv\">
124                      <gml:posList>678096.88 5403803.088 374.90623 678097.403 5403802.152 374.90623 678097.403 5403802.152 376.19923 678096.88 5403803.088 376.19923 678096.88 5403803.088 374.90623</gml:posList>
125                    </gml:LinearRing>
126                  </gml:interior>
127                  <gml:interior>
128                    <gml:LinearRing gml:id=\"4018106_LR.yzLlZkAQX00eXb6Xi0DZ\">
129                      <gml:posList>678096.154 5403804.386 376.19923 678096.154 5403804.386 374.90623 678096.677 5403803.45 374.90623 678096.677 5403803.45 376.19923 678096.154 5403804.386 376.19923</gml:posList>
130                    </gml:LinearRing>
131                  </gml:interior>
132                  <gml:interior>
133                    <gml:LinearRing gml:id=\"4018106_LR.MIkI0SEPyMQ4yblCNiF2\">
134                      <gml:posList>678095.438 5403805.667 376.19923 678095.438 5403805.667 374.90623 678095.961 5403804.731 374.90623 678095.961 5403804.731 376.19923 678095.438 5403805.667 376.19923</gml:posList>
135                    </gml:LinearRing>
136                  </gml:interior>
137                  <gml:interior>
138                    <gml:LinearRing gml:id=\"4018106_LR.novU6ZVfhrtxrFFh7eYQ\">
139                      <gml:posList>678097.403 5403802.152 372.05223 678097.403 5403802.152 373.34523 678096.88 5403803.088 373.34523 678096.88 5403803.088 372.05223 678097.403 5403802.152 372.05223</gml:posList>
140                    </gml:LinearRing>
141                  </gml:interior>
142                  <gml:interior>
143                    <gml:LinearRing gml:id=\"4018106_LR.XdJcfjsruS75wlUmTQdH\">
144                      <gml:posList>678096.677 5403803.45 372.05223 678096.677 5403803.45 373.34523 678096.154 5403804.386 373.34523 678096.154 5403804.386 372.05223 678096.677 5403803.45 372.05223</gml:posList>
145                    </gml:LinearRing>
146                  </gml:interior>
147                  <gml:interior>
148                    <gml:LinearRing gml:id=\"4018106_LR.wzwxsPr4Ys8dTM1bzH8T\">
149                      <gml:posList>678095.961 5403804.731 372.05223 678095.961 5403804.731 373.34523 678095.438 5403805.667 373.34523 678095.438 5403805.667 372.05223 678095.961 5403804.731 372.05223</gml:posList>
150                    </gml:LinearRing>
151                  </gml:interior>
152                  <gml:interior>
153                    <gml:LinearRing gml:id=\"4018106_LR.20P6FwXiq4ZJ4EAxdmJ0\">
154                      <gml:posList>678093.838 5403808.528 374.89423 678094.361 5403807.593 374.89423 678094.361 5403807.593 376.18723 678093.838 5403808.528 376.18723 678093.838 5403808.528 374.89423</gml:posList>
155                    </gml:LinearRing>
156                  </gml:interior>
157                  <gml:interior>
158                    <gml:LinearRing gml:id=\"4018106_LR.saIYdVUNcoK3LJkC2LDw\">
159                      <gml:posList>678093.645 5403808.873 374.89423 678093.645 5403808.873 376.18723 678093.122 5403809.809 376.18723 678093.122 5403809.809 374.89423 678093.645 5403808.873 374.89423</gml:posList>
160                    </gml:LinearRing>
161                  </gml:interior>
162                  <gml:interior>
163                    <gml:LinearRing gml:id=\"4018106_LR.yPDE98qtqfTYBziBsTpl\">
164                      <gml:posList>678093.869 5403808.474 372.04523 678094.392 5403807.538 372.04523 678094.392 5403807.538 373.33823 678093.869 5403808.474 373.33823 678093.869 5403808.474 372.04523</gml:posList>
165                    </gml:LinearRing>
166                  </gml:interior>
167                  <gml:interior>
168                    <gml:LinearRing gml:id=\"4018106_LR.XaQt7QEqeVnG2PB8D6ad\">
169                      <gml:posList>678093.153 5403809.755 373.33823 678093.153 5403809.755 372.04523 678093.676 5403808.819 372.04523 678093.676 5403808.819 373.33823 678093.153 5403809.755 373.33823</gml:posList>
170                    </gml:LinearRing>
171                  </gml:interior>
172                  <gml:interior>
173                    <gml:LinearRing gml:id=\"4018106_LR.kCEyyLA2tigxjpQY9cyU\">
174                      <gml:posList>678092.933 5403810.148 372.04523 678092.933 5403810.148 373.32523 678092.126 5403811.591 373.32523 678092.126 5403811.591 372.04523 678092.933 5403810.148 372.04523</gml:posList>
175                    </gml:LinearRing>
176                  </gml:interior>
177                  <gml:interior>
178                    <gml:LinearRing gml:id=\"4018106_LR.Wq5AG6YS8zrN5HgtFQD8\">
179                      <gml:posList>678092.126 5403811.591 376.18723 678092.126 5403811.591 374.89423 678092.933 5403810.148 374.89423 678092.933 5403810.148 376.18723 678092.126 5403811.591 376.18723</gml:posList>
180                    </gml:LinearRing>
181                  </gml:interior>
182                  <gml:interior>
183                    <gml:LinearRing gml:id=\"4018106_LR.aQFMEYkDQkns0ZoJ66pj\">
184                      <gml:posList>678095.264 5403805.978 370.34223000000003 678095.264 5403805.978 370.79823 678093.197 5403809.675 370.79823 678093.197 5403809.675 370.34223000000003 678095.264 5403805.978 370.34223000000003</gml:posList>
185                    </gml:LinearRing>
186                  </gml:interior>
187                  <gml:interior>
188                    <gml:LinearRing gml:id=\"4018106_LR.tXljCrPP3Efr0mz83aTx\">
189                      <gml:posList>678095.254 5403805.996 368.30523 678095.254 5403805.996 370.06923 678093.187 5403809.693 370.06923 678093.187 5403809.693 368.30523 678095.254 5403805.996 368.30523</gml:posList>
190                    </gml:LinearRing>
191                  </gml:interior>
192                  <gml:interior>
193                    <gml:LinearRing gml:id=\"4018106_LR.gLnR6siy7dPwvvNX2zz0\">
194                      <gml:posList>678095.558 5403805.452 370.06723 678095.558 5403805.452 368.30323 678097.625 5403801.755 368.30323 678097.625 5403801.755 370.06723 678095.558 5403805.452 370.06723</gml:posList>
195                    </gml:LinearRing>
196                  </gml:interior>
197                  <gml:interior>
198                    <gml:LinearRing gml:id=\"4018106_LR.Iw6I84mlFFHQEPQCpApK\">
199                      <gml:posList>678097.625 5403801.755 370.34223000000003 678097.625 5403801.755 370.79223 678095.558 5403805.452 370.79223 678095.558 5403805.452 370.34223000000003 678097.625 5403801.755 370.34223000000003</gml:posList>
200                    </gml:LinearRing>
201                  </gml:interior>
202                </gml:Polygon>
203              </gml:surfaceMember>
204            </gml:MultiSurface>";
205
206        let result = parse_multi_surface(source_text).unwrap();
207
208        assert_eq!(result.surface_member().len(), 1);
209    }
210
211    #[test]
212    fn parsing_multi_surface_without_id() {
213        let source_text = "<gml:MultiSurface>
214              <gml:surfaceMember>
215                <gml:Polygon>
216                  <gml:exterior>
217                    <gml:LinearRing>
218                      <gml:posList srsDimension=\"3\">678009.7116291433 5403638.313338383 417.3480034550211 678012.5609078613 5403634.960884141 417.34658523466385 678013.7892528991 5403636.004867206 417.51938733855997 678010.9399743223 5403639.357321232 417.5208051908512 678009.7116291433 5403638.313338383 417.3480034550211</gml:posList>
219                    </gml:LinearRing>
220                  </gml:exterior>
221                </gml:Polygon>
222              </gml:surfaceMember>
223            </gml:MultiSurface>";
224
225        let result = parse_multi_surface(source_text).unwrap();
226
227        assert_eq!(result.surface_member().len(), 1);
228    }
229}
egml_io/geometry/multi_surface.rs

egml_io/geometry/
multi_surface.rs
