Beispiel #1
0
        public SharpMap.Data.FeatureDataRow FindGeoNearPoint(SharpMap.Geometries.Point pos, double amountGrow, ref double DistanceToSelected)
        {
            SharpMap.Geometries.BoundingBox bbox = pos.GetBoundingBox().Grow(amountGrow);
            SharpMap.Data.FeatureDataSet ds = new SharpMap.Data.FeatureDataSet();
            DataSource.ExecuteIntersectionQuery(bbox, ds);
            System.Data.DataTable tbl = ds.Tables[0] as SharpMap.Data.FeatureDataTable;
            GisSharpBlog.NetTopologySuite.IO.WKTReader reader = new GisSharpBlog.NetTopologySuite.IO.WKTReader();
            GeoAPI.Geometries.IGeometry point = reader.Read(pos.ToString());
            if (tbl.Rows.Count == 0)
                return null;

            double distance = point.Distance(reader.Read((tbl.Rows[0] as SharpMap.Data.FeatureDataRow).Geometry.ToString()));
            SharpMap.Data.FeatureDataRow selectedFeature = tbl.Rows[0] as SharpMap.Data.FeatureDataRow;

            if (tbl.Rows.Count > 1)
                for (int i = 1; i < tbl.Rows.Count; i++)
                {
                    GeoAPI.Geometries.IGeometry line = reader.Read((tbl.Rows[i] as SharpMap.Data.FeatureDataRow).Geometry.ToString());
                    if (point.Distance(line) < distance)
                    {
                        distance = point.Distance(line);
                        selectedFeature = tbl.Rows[i] as SharpMap.Data.FeatureDataRow;
                    }
                }
            DistanceToSelected = distance;
            return selectedFeature;
        }
        void mapBox1_GeometryDefined(SharpMap.Geometries.Geometry geometry)
        {
            MessageBox.Show("Geometry defined!\r\n"+geometry.ToString());

            geoProvider.Geometries.Add(geometry);

            this.mapBox1.ActiveTool = SharpMap.Forms.MapBox.Tools.Pan;
            this.mapBox1.Refresh();

        }