71 lines
2.7 KiB
Dart
71 lines
2.7 KiB
Dart
import 'package:get/get.dart';
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import 'package:intaleq_maps/intaleq_maps.dart';
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import '../services/viewshed_360_engine.dart';
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/// ============================================================================
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/// [ViewshedController] - وحدة التحكم برادار الرصد الدائري 360°
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/// ============================================================================
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/// English:
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/// GetX Controller managing 360° radial viewshed calculations, observer radar
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/// radius, visible coverage polygons, and dead ground area metrics.
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///
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/// العربية:
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/// متحكم GetX لإدارة رادار الرصد الدائري 360 درجة، وحساب مضلع التغطية البصرية
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/// الفعلي ومساحة الرصد بالكيلومتر المربع مع تضاريس الأردن الحقيقية.
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/// ============================================================================
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class ViewshedController extends GetxController {
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// ── Observables / الحالات التفاعلية ──────────────────────────────────────
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final Rx<LatLng?> observerPosition = Rx<LatLng?>(null);
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final RxDouble radiusKm = 5.0.obs;
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final RxDouble observerHeightM = 2.0.obs;
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final RxBool isCalculating = false.obs;
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final Rx<Viewshed360Report?> viewshedReport = Rx<Viewshed360Report?>(null);
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/// Set Viewshed Radar Center / تعيين مركز الرادار والرصد
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void setObserver(LatLng pos) {
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observerPosition.value = pos;
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computeViewshed();
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}
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/// Set Radar Range Radius in KM / ضبط نصف قطر دائرة الرصد بالكيلومتر
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void setRadius(double km) {
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radiusKm.value = km;
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computeViewshed();
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}
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/// Set Observer Antenna/Tower Height / ضبط ارتفاع سارية الرصد بالمتر
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void setHeight(double heightM) {
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observerHeightM.value = heightM;
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computeViewshed();
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}
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/// Compute 360 Viewshed / تنفيذ الحساب التفاعلي لحقل الرؤية الدائري
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Future<void> computeViewshed() async {
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if (observerPosition.value == null) {
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viewshedReport.value = null;
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return;
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}
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try {
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isCalculating.value = true;
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final rep = await Viewshed360Engine.calculateAsync(
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observer: observerPosition.value!,
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radiusMeters: radiusKm.value * 1000.0,
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observerHeightM: observerHeightM.value,
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rayCount: 360,
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);
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viewshedReport.value = rep;
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} catch (e) {
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viewshedReport.value = null;
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} finally {
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isCalculating.value = false;
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}
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}
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/// Reset viewshed state / إعادة ضبط الرادار الدائري
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void reset() {
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observerPosition.value = null;
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viewshedReport.value = null;
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}
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}
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