48 lines
1.6 KiB
C#
48 lines
1.6 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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namespace Plane.Maps.ChinaOffset
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{
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public sealed class ChinaMapOffsetResolver
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{
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private static ChinaMapOffsetResolver _Instance;
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public static ChinaMapOffsetResolver Instance
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{
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get { return _Instance ?? (_Instance = new ChinaMapOffsetResolver()); }
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}
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private ChinaMapOffsetResolver() { }
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private ChinaOffsetMap _CM;
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private ChinaOffsetMap CM { get { return _CM ?? (_CM = new ChinaOffsetMap(LoadResource("chinaoffset"))); } }
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private ChinaOffsetMap _Acm;
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private ChinaOffsetMap Acm { get { return _Acm ?? (_Acm = new ChinaOffsetMap(LoadResource("antichinaoffset"))); } }
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public LatLng StandardToChinaMap(double lat, double lng)
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{
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var dxyRetLngLat = new double[2];
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this.CM.GetLonLatAfterOffset(lng, lat, dxyRetLngLat);
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return new LatLng(dxyRetLngLat[1], dxyRetLngLat[0]);
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}
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public LatLng ChinaMapToStandard(double lat, double lng)
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{
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var dxyRetLngLat = new double[2];
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this.Acm.GetLonLatAfterOffset(lng, lat, dxyRetLngLat);
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return new LatLng(dxyRetLngLat[1], dxyRetLngLat[0]);
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}
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private Stream LoadResource(string simpleName)
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{
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String resourceName = this.GetType().Namespace + ".Resources." + simpleName + ".dat";
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return typeof(ChinaMapOffsetResolver).GetTypeInfo().Assembly.GetManifestResourceStream(resourceName);
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}
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}
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}
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