本文整理汇总了C#中Geometry.AsText方法的典型用法代码示例。如果您正苦于以下问题：C# Geometry.AsText方法的具体用法？C# Geometry.AsText怎么用？C# Geometry.AsText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类Geometry的用法示例。
在下文中一共展示了Geometry.AsText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: QueryFeatures
public FeatureDataTable QueryFeatures(Geometry geom, double distance)
{
//List<Geometries.Geometry> features = new List<SharpMap.Geometries.Geometry>();
using (OracleConnection conn = new OracleConnection(_ConnectionString))
{
string strGeom = "MDSYS.SDO_GEOMETRY('" + geom.AsText() + "', #SRID#)";
if (SRID > 0)
{
strGeom = strGeom.Replace("#SRID#", SRID.ToString(Map.NumberFormatEnUs));
}
else
{
strGeom = strGeom.Replace("#SRID#", "NULL");
}
strGeom = "SDO_WITHIN_DISTANCE(g." + GeometryColumn + ", " + strGeom + ", 'distance = " +
distance.ToString(Map.NumberFormatEnUs) + "') = 'TRUE'";
string strSQL = "SELECT g.* , g." + GeometryColumn + ").Get_WKB() As sharpmap_tempgeometry FROM " +
Table + " g WHERE ";
if (!String.IsNullOrEmpty(_defintionQuery))
strSQL += DefinitionQuery + " AND ";
strSQL += strGeom;
using (OracleDataAdapter adapter = new OracleDataAdapter(strSQL, conn))
{
DataSet ds = new DataSet();
conn.Open();
adapter.Fill(ds);
conn.Close();
if (ds.Tables.Count > 0)
{
FeatureDataTable fdt = new FeatureDataTable(ds.Tables[0]);
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdt.Columns.Add(col.ColumnName, col.DataType, col.Expression);
foreach (DataRow dr in ds.Tables[0].Rows)
{
FeatureDataRow fdr = fdt.NewRow();
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdr[col.ColumnName] = dr[col];
fdr.Geometry = GeometryFromWKB.Parse((byte[]) dr["sharpmap_tempgeometry"]);
fdt.AddRow(fdr);
}
return fdt;
}
else return null;
}
}
}示例2: QueryFeatures
public FeatureDataTable QueryFeatures(Geometry geom, double distance)
{
//List<Geometries.Geometry> features = new List<SharpMap.Geometries.Geometry>();
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
string strGeom;
if (TargetSRID > 0 && SRID > 0 && SRID != TargetSRID)
strGeom = "ST.Transform(ST.GeomFromText('" + geom.AsText() + "'," + TargetSRID.ToString() + ")," +
SRID.ToString() + ")";
else
strGeom = "ST.GeomFromText('" + geom.AsText() + "', " + SRID.ToString() + ")";
string strSQL = "SELECT " + FeatureColumns + ", ST.AsBinary(" + BuildGeometryExpression() +
") As sharpmap_tempgeometry ";
strSQL += "FROM ST.IsWithinDistanceQuery" + BuildSpatialQuerySuffix() + "(" + strGeom + ", " +
distance.ToString(Map.NumberFormatEnUs) + ")";
if (!String.IsNullOrEmpty(DefinitionQuery))
strSQL += " WHERE " + DefinitionQuery;
if (!String.IsNullOrEmpty(OrderQuery))
strSQL += " ORDER BY " + OrderQuery;
using (SqlDataAdapter adapter = new SqlDataAdapter(strSQL, conn))
{
DataSet ds = new DataSet();
conn.Open();
adapter.Fill(ds);
conn.Close();
if (ds.Tables.Count > 0)
{
FeatureDataTable fdt = new FeatureDataTable(ds.Tables[0]);
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn &&
!col.ColumnName.StartsWith(GeometryColumn + "_Envelope_") &&
col.ColumnName != "sharpmap_tempgeometry")
fdt.Columns.Add(col.ColumnName, col.DataType, col.Expression);
foreach (DataRow dr in ds.Tables[0].Rows)
{
FeatureDataRow fdr = fdt.NewRow();
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn &&
!col.ColumnName.StartsWith(GeometryColumn + "_Envelope_") &&
col.ColumnName != "sharpmap_tempgeometry")
fdr[col.ColumnName] = dr[col];
if (dr["sharpmap_tempgeometry"] != DBNull.Value)
fdr.Geometry = GeometryFromWKB.Parse((byte[]) dr["sharpmap_tempgeometry"]);
fdt.AddRow(fdr);
}
return fdt;
}
else return null;
}
}
}示例3: ExecuteIntersectionQuery
/// <summary>
/// Returns the features that intersects with 'geom'
/// </summary>
/// <param name="geom"></param>
/// <param name="ds">FeatureDataSet to fill data into</param>
public void ExecuteIntersectionQuery(Geometry geom, FeatureDataSet ds)
{
List<Geometry> features = new List<Geometry>();
using (OracleConnection conn = new OracleConnection(_ConnectionString))
{
string strGeom = "MDSYS.SDO_GEOMETRY('" + geom.AsText() + "', #SRID#)";
if (SRID > 0)
{
strGeom = strGeom.Replace("#SRID#", SRID.ToString(Map.NumberFormatEnUs));
}
else
{
strGeom = strGeom.Replace("#SRID#", "NULL");
}
strGeom = "SDO_RELATE(g." + GeometryColumn + ", " + strGeom +
", 'mask=ANYINTERACT querytype=WINDOW') = 'TRUE'";
string strSQL = "SELECT g.* , g." + GeometryColumn + ").Get_WKB() As sharpmap_tempgeometry FROM " +
Table + " g WHERE ";
if (!String.IsNullOrEmpty(_defintionQuery))
strSQL += DefinitionQuery + " AND ";
strSQL += strGeom;
using (OracleDataAdapter adapter = new OracleDataAdapter(strSQL, conn))
{
conn.Open();
adapter.Fill(ds);
conn.Close();
if (ds.Tables.Count > 0)
{
FeatureDataTable fdt = new FeatureDataTable(ds.Tables[0]);
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdt.Columns.Add(col.ColumnName, col.DataType, col.Expression);
foreach (DataRow dr in ds.Tables[0].Rows)
{
FeatureDataRow fdr = fdt.NewRow();
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdr[col.ColumnName] = dr[col];
fdr.Geometry = GeometryFromWKB.Parse((byte[]) dr["sharpmap_tempgeometry"]);
fdt.AddRow(fdr);
}
ds.Tables.Add(fdt);
}
}
}
}示例4: ExecuteIntersectionQuery
/// <summary>
/// Returns the features that intersects with 'geom'
/// </summary>
/// <param name="geom"></param>
/// <param name="ds">FeatureDataSet to fill data into</param>
public void ExecuteIntersectionQuery(Geometry geom, FeatureDataSet ds)
{
//List<Geometry> features = new List<Geometry>();
using (SqlConnection conn = new SqlConnection(_connectionString))
{
//TODO: Convert to SQL Server
string strGeom = _spatialObject + "::STGeomFromText('" + geom.AsText() + "', #SRID#)";
strGeom = strGeom.Replace("#SRID#", SRID > 0 ? SRID.ToString() : "0");
strGeom = GeometryColumn + ".STIntersects(" + strGeom + ") = 1";
string strSQL = string.Format("SELECT g.* , g.{0}{1}.STAsBinary() As sharpmap_tempgeometry FROM {2} g WHERE ",
GeometryColumn, MakeValidString, Table);
if (!String.IsNullOrEmpty(_defintionQuery))
strSQL += DefinitionQuery + " AND ";
strSQL += strGeom;
using (SqlDataAdapter adapter = new SqlDataAdapter(strSQL, conn))
{
conn.Open();
System.Data.DataSet ds2 = new System.Data.DataSet();
adapter.Fill(ds2);
conn.Close();
if (ds2.Tables.Count > 0)
{
FeatureDataTable fdt = new FeatureDataTable(ds2.Tables[0]);
foreach (System.Data.DataColumn col in ds2.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdt.Columns.Add(col.ColumnName, col.DataType, col.Expression);
foreach (System.Data.DataRow dr in ds2.Tables[0].Rows)
{
FeatureDataRow fdr = fdt.NewRow();
foreach (System.Data.DataColumn col in ds2.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdr[col.ColumnName] = dr[col];
fdr.Geometry = Converters.WellKnownBinary.GeometryFromWKB.Parse((byte[])dr["sharpmap_tempgeometry"]);
fdt.AddRow(fdr);
}
ds.Tables.Add(fdt);
}
}
}
} 示例5: QueryFeatures
public FeatureDataTable QueryFeatures(Geometry geom, double distance)
{
//Collection<Geometries.Geometry> features = new Collection<SharpMap.Geometries.Geometry>();
using (NpgsqlConnection conn = new NpgsqlConnection(_ConnectionString))
{
string strGeom = "GeomFromText('" + geom.AsText() + "')";
if (SRID > 0)
strGeom = "setSRID(" + strGeom + "," + SRID + ")";
string strSQL = "SELECT * , AsBinary(\"" + GeometryColumn + "\") As sharpmap_tempgeometry FROM " +
QualifiedTable + " WHERE ";
if (!String.IsNullOrEmpty(_defintionQuery))
strSQL += DefinitionQuery + " AND ";
strSQL += "\"" + GeometryColumn + "\" && " + "buffer(" + strGeom + "," +
distance.ToString(Map.NumberFormatEnUs) + ")";
strSQL += " AND distance(\"" + GeometryColumn + "\", " + strGeom + ")<" +
distance.ToString(Map.NumberFormatEnUs);
using (NpgsqlDataAdapter adapter = new NpgsqlDataAdapter(strSQL, conn))
{
DataSet ds = new DataSet();
conn.Open();
adapter.Fill(ds);
conn.Close();
if (ds.Tables.Count > 0)
{
FeatureDataTable fdt = new FeatureDataTable(ds.Tables[0]);
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdt.Columns.Add(col.ColumnName, col.DataType, col.Expression);
foreach (DataRow dr in ds.Tables[0].Rows)
{
FeatureDataRow fdr = fdt.NewRow();
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdr[col.ColumnName] = dr[col];
fdr.Geometry = GeometryFromWKB.Parse((byte[]) dr["sharpmap_tempgeometry"]);
fdt.AddRow(fdr);
}
return fdt;
}
else return null;
}
}
}示例6: ExecuteIntersectionQuery
/// <summary>
/// Returns the features that intersects with 'geom'
/// </summary>
/// <param name="geom"></param>
/// <param name="ds">FeatureDataSet to fill data into</param>
public void ExecuteIntersectionQuery(Geometry geom, FeatureDataSet ds)
{
List<Geometry> features = new List<Geometry>();
using (NpgsqlConnection conn = new NpgsqlConnection(_ConnectionString))
{
string strGeom = "GeomFromText('" + geom.AsText() + "')";
if (SRID > 0)
strGeom = "setSRID(" + strGeom + "," + SRID + ")";
string strSQL = "SELECT * , AsBinary(\"" + GeometryColumn + "\") As sharpmap_tempgeometry FROM " +
QualifiedTable + " WHERE ";
if (!String.IsNullOrEmpty(_defintionQuery))
strSQL += DefinitionQuery + " AND ";
strSQL += "\"" + GeometryColumn + "\" && " + strGeom + " AND distance(\"" + GeometryColumn + "\", " +
strGeom + ")<0";
#if DEBUG
Debug.WriteLine(string.Format("{0}\n{1}", "ExecuteIntersectionQuery: executing sql:", strSQL));
#endif
using (NpgsqlDataAdapter adapter = new NpgsqlDataAdapter(strSQL, conn))
{
conn.Open();
adapter.Fill(ds);
conn.Close();
if (ds.Tables.Count > 0)
{
FeatureDataTable fdt = new FeatureDataTable(ds.Tables[0]);
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdt.Columns.Add(col.ColumnName, col.DataType, col.Expression);
foreach (DataRow dr in ds.Tables[0].Rows)
{
FeatureDataRow fdr = fdt.NewRow();
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdr[col.ColumnName] = dr[col];
fdr.Geometry = GeometryFromWKB.Parse((byte[]) dr["sharpmap_tempgeometry"]);
fdt.AddRow(fdr);
}
ds.Tables.Add(fdt);
}
}
}
}示例7: ExecuteIntersectionQuery
/// <summary>
/// Returns the features that intersects with 'geom'
/// </summary>
/// <param name="geom"></param>
/// <param name="ds">FeatureDataSet to fill data into</param>
public void ExecuteIntersectionQuery(Geometry geom, FeatureDataSet ds)
{
//List<Geometries.Geometry> features = new List<SharpMap.Geometries.Geometry>();
using (PgConnection conn = new PgConnection(_ConnectionString))
{
string strGeom = "GeomFromText('" + geom.AsText() + "')";
if (SRID > 0)
strGeom = "setSRID(" + strGeom + "," + SRID.ToString() + ")";
string strSQL = "SELECT * , AsBinary(" + GeometryColumn + ") As sharpmap_tempgeometry FROM " + Table +
" WHERE ";
if (!String.IsNullOrEmpty(_defintionQuery))
strSQL += DefinitionQuery + " AND ";
strSQL += GeometryColumn + " && " + strGeom + " AND distance(" + GeometryColumn + ", " + strGeom + ")<0";
using (PgDataAdapter adapter = new PgDataAdapter(strSQL, conn))
{
conn.Open();
adapter.Fill(ds);
conn.Close();
if (ds.Tables.Count > 0)
{
FeatureDataTable fdt = new FeatureDataTable(ds.Tables[0]);
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdt.Columns.Add(col.ColumnName, col.DataType, col.Expression);
foreach (DataRow dr in ds.Tables[0].Rows)
{
FeatureDataRow fdr = fdt.NewRow();
foreach (DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn && col.ColumnName != "sharpmap_tempgeometry")
fdr[col.ColumnName] = dr[col];
fdr.Geometry = GeometryFromWKB.Parse((byte[]) dr["sharpmap_tempgeometry"]);
fdt.AddRow(fdr);
}
ds.Tables.Add(fdt);
}
}
}
}示例8: ExecuteIntersectionQuery
/// <summary>
/// Returns the features that intersects with 'geom'
/// </summary>
/// <param name="geom"></param>
/// <param name="ds">FeatureDataSet to fill data into</param>
public override void ExecuteIntersectionQuery(Geometry geom, FeatureDataSet ds)
{
using (SqlConnection conn = new SqlConnection(ConnectionString))
{
string strGeom = _spatialObject + "::STGeomFromText('" + geom.AsText() + "', #SRID#)";
strGeom = strGeom.Replace("#SRID#", SRID > 0 ? SRID.ToString() : "0");
strGeom = GeometryColumn + ".STIntersects(" + strGeom + ") = 1";
string strSQL = "SELECT g.* FROM " + Table + " g " + BuildTableHints() + " WHERE ";
if (!String.IsNullOrEmpty(DefinitionQuery))
strSQL += DefinitionQuery + " AND ";
strSQL += strGeom;
using (SqlDataAdapter adapter = new SqlDataAdapter(strSQL, conn))
{
conn.Open();
adapter.Fill(ds);
conn.Close();
if (ds.Tables.Count > 0)
{
FeatureDataTable fdt = new FeatureDataTable(ds.Tables[0]);
foreach (System.Data.DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn)
fdt.Columns.Add(col.ColumnName, col.DataType, col.Expression);
foreach (System.Data.DataRow dr in ds.Tables[0].Rows)
{
FeatureDataRow fdr = fdt.NewRow();
foreach (System.Data.DataColumn col in ds.Tables[0].Columns)
if (col.ColumnName != GeometryColumn)
fdr[col.ColumnName] = dr[col];
fdr.Geometry = SqlGeometryConverter.ToSharpMapGeometry((Microsoft.SqlServer.Types.SqlGeometry)dr[GeometryColumn]);
fdt.AddRow(fdr);
}
ds.Tables.Add(fdt);
}
}
}
}