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C# SpatialContext.IsGeo方法代码示例

本文整理汇总了C#中Spatial4n.Core.Context.SpatialContext.IsGeo方法的典型用法代码示例。如果您正苦于以下问题:C# SpatialContext.IsGeo方法的具体用法?C# SpatialContext.IsGeo怎么用?C# SpatialContext.IsGeo使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Spatial4n.Core.Context.SpatialContext的用法示例。


在下文中一共展示了SpatialContext.IsGeo方法的8个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: MakeSPT

 //1m
 /// <summary>The factory  is looked up via "prefixTree" in args, expecting "geohash" or "quad".
 /// 	</summary>
 /// <remarks>
 /// The factory  is looked up via "prefixTree" in args, expecting "geohash" or "quad".
 /// If its neither of these, then "geohash" is chosen for a geo context, otherwise "quad" is chosen.
 /// </remarks>
 public static SpatialPrefixTree MakeSPT(IDictionary<string, string> args, SpatialContext ctx)
 {
     SpatialPrefixTreeFactory instance;
     string cname = args[PrefixTree];
     if (cname == null)
     {
         cname = ctx.IsGeo() ? "geohash" : "quad";
     }
     if ("geohash".Equals(cname, StringComparison.OrdinalIgnoreCase))
     {
         instance = new GeohashPrefixTree.Factory();
     }
     else
     {
         if ("quad".Equals(cname, StringComparison.OrdinalIgnoreCase))
         {
             instance = new QuadPrefixTree.Factory();
         }
         else
         {
             try
             {
                 Type c = Type.GetType(cname);
                 instance = (SpatialPrefixTreeFactory)System.Activator.CreateInstance(c);
             }
             catch (Exception e)
             {
                 throw new Exception(string.Empty, e);
             }
         }
     }
     instance.Init(args, ctx);
     return instance.NewSPT();
 }
开发者ID:Cefa68000,项目名称:lucenenet,代码行数:41,代码来源:SpatialPrefixTreeFactory.cs

示例2: testMultiShape

        public void testMultiShape(SpatialContext ctx)
        {
            this.ctx = ctx;

            if(ctx.IsGeo()) return;//TODO not yet supported!

            //come up with some random shapes
            int NUM_SHAPES = random.Next(1, 5);
            var shapes = new List<Rectangle>(NUM_SHAPES);
            while (shapes.Count < NUM_SHAPES)
            {
                shapes.Add(RandomRectangle(20));
            }
            var multiShape = new MultiShape(shapes.Cast<Shape>(), ctx);

            //test multiShape.getBoundingBox();
            Rectangle msBbox = multiShape.GetBoundingBox();
            if (shapes.Count == 1)
            {
                Assert.Equal(shapes[0], msBbox.GetBoundingBox());
            }
            else
            {
                foreach (Rectangle shape in shapes)
                {
                    AssertRelation("bbox contains shape", SpatialRelation.CONTAINS, msBbox, shape);
                }
            }

            //TODO test multiShape.relate()
        }
开发者ID:ccurrens,项目名称:Spatial4n,代码行数:31,代码来源:AbstractTestShapes.cs

示例3: GeoCircle

        private readonly GeoCircle inverseCircle; //when distance reaches > 1/2 way around the world, cache the inverse.

        #endregion Fields

        #region Constructors

        public GeoCircle(Point p, double dist, SpatialContext ctx)
            : base(p, dist, ctx)
        {
            Debug.Assert(ctx.IsGeo());

            //In the direction of latitude (N,S), distance is the same number of degrees.
            distDEG = ctx.GetDistCalc().DistanceToDegrees(distRadius);

            if (distDEG > 90)
            {
                //--spans more than half the globe
                Debug.Assert(enclosingBox.GetWidth() == 360);
                double backDistDEG = 180 - distDEG;
                if (backDistDEG > 0)
                {
                    double backDistance = ctx.GetDistCalc().DegreesToDistance(backDistDEG);
                    //shrink inverseCircle as small as possible to avoid accidental overlap
                    backDistance -= Ulp(backDistance);
                    Point backPoint = ctx.MakePoint(GetCenter().GetX() + 180, GetCenter().GetY() + 180);
                    inverseCircle = new GeoCircle(backPoint, backDistance, ctx);
                }
                else
                    inverseCircle = null;//whole globe
                horizAxisY = GetCenter().GetY();//although probably not used
            }
            else
            {
                inverseCircle = null;
                double _horizAxisY = ctx.GetDistCalc().CalcBoxByDistFromPt_yHorizAxisDEG(GetCenter(), dist, ctx);
                //some rare numeric conditioning cases can cause this to be barely beyond the box
                if (_horizAxisY > enclosingBox.GetMaxY())
                {
                    horizAxisY = enclosingBox.GetMaxY();
                }
                else if (_horizAxisY < enclosingBox.GetMinY())
                {
                    horizAxisY = enclosingBox.GetMinY();
                }
                else
                {
                    horizAxisY = _horizAxisY;
                }
                //Debug.Assert(enclosingBox.Relate_yRange(horizAxis, horizAxis, ctx).Intersects());
            }
        }
开发者ID:ccurrens,项目名称:Spatial4n,代码行数:51,代码来源:GeoCircle.cs

示例4: MakeSPT

		/// <summary>
		/// The factory  is looked up via "prefixTree" in args, expecting "geohash" or "quad".
		/// If its neither of these, then "geohash" is chosen for a geo context, otherwise "quad" is chosen.
		/// </summary>
		/// <param name="args"></param>
		/// <param name="ctx"></param>
		/// <returns></returns>
		public static SpatialPrefixTree MakeSPT(Dictionary<String, String> args, SpatialContext ctx)
		{
			SpatialPrefixTreeFactory instance;
			String cname;
            if (!args.TryGetValue(PREFIX_TREE, out cname) || cname == null)
				cname = ctx.IsGeo() ? "geohash" : "quad";
			if ("geohash".Equals(cname, StringComparison.InvariantCultureIgnoreCase))
				instance = new GeohashPrefixTree.Factory();
			else if ("quad".Equals(cname, StringComparison.InvariantCultureIgnoreCase))
				instance = new QuadPrefixTree.Factory();
			else
			{
				Type t = Type.GetType(cname);
				instance = (SpatialPrefixTreeFactory)Activator.CreateInstance(t);
			}
			instance.Init(args, ctx);
			return instance.NewSPT();
		}
开发者ID:raol,项目名称:lucene.net,代码行数:25,代码来源:SpatialPrefixTreeFactory.cs

示例5: RelateXRange

        public SpatialRelation RelateXRange(double ext_minX, double ext_maxX, SpatialContext ctx)
        {
            //For ext & this we have local minX and maxX variable pairs. We rotate them so that minX <= maxX
            double minX = this.minX;
            double maxX = this.maxX;
            if (ctx.IsGeo())
            {
                //unwrap dateline, plus do world-wrap short circuit
                double rawWidth = maxX - minX;
                if (rawWidth == 360)
                    return SpatialRelation.CONTAINS;
                if (rawWidth < 0)
                {
                    maxX = minX + (rawWidth + 360);
                }

                double ext_rawWidth = ext_maxX - ext_minX;
                if (ext_rawWidth == 360)
                    return SpatialRelation.WITHIN;
                if (ext_rawWidth < 0)
                {
                    ext_maxX = ext_minX + (ext_rawWidth + 360);
                }

                //shift to potentially overlap
                if (maxX < ext_minX)
                {
                    minX += 360;
                    maxX += 360;
                }
                else if (ext_maxX < minX)
                {
                    ext_minX += 360;
                    ext_maxX += 360;
                }
            }

            return Relate_Range(minX, maxX, ext_minX, ext_maxX);
        }
开发者ID:ccurrens,项目名称:Spatial4n,代码行数:39,代码来源:RectangleImpl.cs

示例6: Relate

 public SpatialRelation Relate(Point point, SpatialContext ctx)
 {
     if (point.GetY() > GetMaxY() || point.GetY() < GetMinY())
         return SpatialRelation.DISJOINT;
     //  all the below logic is rather unfortunate but some dateline cases demand it
     double minX = this.minX;
     double maxX = this.maxX;
     double pX = point.GetX();
     if (ctx.IsGeo())
     {
         //unwrap dateline and normalize +180 to become -180
         double rawWidth = maxX - minX;
         if (rawWidth < 0)
         {
             maxX = minX + (rawWidth + 360);
         }
         //shift to potentially overlap
         if (pX < minX)
         {
             pX += 360;
         }
         else if (pX > maxX)
         {
             pX -= 360;
         } else {
             return SpatialRelation.CONTAINS; //short-circuit
         }
     }
     if (pX < minX || pX > maxX)
         return SpatialRelation.DISJOINT;
     return SpatialRelation.CONTAINS;
 }
开发者ID:ccurrens,项目名称:Spatial4n,代码行数:32,代码来源:RectangleImpl.cs

示例7: DistanceSimilarity

 public DistanceSimilarity(SpatialContext ctx, Point queryPoint)
 {
     this.queryPoint = queryPoint;
     this.distCalc = ctx.GetDistCalc();
     this.nullValue = (ctx.IsGeo() ? 180 : double.MaxValue);
 }
开发者ID:raol,项目名称:lucene.net,代码行数:6,代码来源:DistanceSimilarity.cs

示例8: GeoCircle

        private GeoCircle inverseCircle; //when distance reaches > 1/2 way around the world, cache the inverse.

        #endregion Fields

        #region Constructors

        public GeoCircle(Point p, double radiusDEG, SpatialContext ctx)
            : base(p, radiusDEG, ctx)
        {
            Debug.Assert(ctx.IsGeo());
            Init();
        }
开发者ID:h0st1le,项目名称:Spatial4n,代码行数:12,代码来源:GeoCircle.cs


注:本文中的Spatial4n.Core.Context.SpatialContext.IsGeo方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。