44 lines
1.5 KiB
Dart
44 lines
1.5 KiB
Dart
import 'package:maplibre_gl/maplibre_gl.dart';
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class CountryPolygons {
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static final List<LatLng> jordanBoundary = [
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const LatLng(32.65, 35.80),
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const LatLng(32.35, 37.00),
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const LatLng(31.85, 36.80),
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const LatLng(31.00, 36.50),
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const LatLng(30.30, 35.75),
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const LatLng(29.50, 35.00),
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const LatLng(29.50, 34.85),
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const LatLng(30.80, 35.25),
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const LatLng(32.00, 35.50),
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const LatLng(32.45, 35.60),
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const LatLng(32.65, 35.80),
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];
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static bool isPointInPolygon(LatLng p, List<LatLng> polygon) {
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bool isInside = false;
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int j = polygon.length - 1;
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for (int i = 0; i < polygon.length; i++) {
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if (((polygon[i].latitude > p.latitude) != (polygon[j].latitude > p.latitude)) &&
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(p.longitude < (polygon[j].longitude - polygon[i].longitude) * (p.latitude - polygon[i].latitude) / (polygon[j].latitude - polygon[i].latitude) + polygon[i].longitude)) {
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isInside = !isInside;
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}
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j = i;
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}
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return isInside;
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}
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}
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void main() {
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// Amman coordinates from log: 32.1117, 36.0671
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final amman = LatLng(32.1117, 36.0671);
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final isAmmanInJordan = CountryPolygons.isPointInPolygon(amman, CountryPolygons.jordanBoundary);
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print('Amman (32.11, 36.06) in Jordan: $isAmmanInJordan');
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// Damascus coordinates (example): 33.5138, 36.2765
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final damascus = LatLng(33.5138, 36.2765);
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final isDamascusInJordan = CountryPolygons.isPointInPolygon(damascus, CountryPolygons.jordanBoundary);
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print('Damascus (33.51, 36.27) in Jordan: $isDamascusInJordan');
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}
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