本文整理汇总了C#中FeatureDataTable.Load方法的典型用法代码示例。如果您正苦于以下问题：C# FeatureDataTable.Load方法的具体用法？C# FeatureDataTable.Load怎么用？C# FeatureDataTable.Load使用的例子？那么, 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FeatureDataTable的用法示例。
在下文中一共展示了FeatureDataTable.Load方法的4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: InsertFeaturesTest
public void InsertFeaturesTest()
{
FeatureDataTable<UInt32> schema = new FeatureDataTable<UInt32>("OID", _geoFactory);
schema.Columns.AddRange(new DataColumn[]
{
new DataColumn("Name", typeof (String)),
new DataColumn("DateCreated", typeof (DateTime)),
new DataColumn("Visits", typeof (Int64)),
new DataColumn("Weight", typeof (Double))
});
ShapeFileProvider shapeFile = ShapeFileProvider.Create("UnitTestData", "Test3", ShapeType.PolyLine, schema, _geoFactory);
shapeFile.Open();
IExtents computedBounds = _geoFactory.CreateExtents();
List<FeatureDataRow<UInt32>> rows = new List<FeatureDataRow<UInt32>>();
for (Int32 i = 0; i < 10000; i++)
{
DateTime dateCreated = new DateTime(_rnd.Next(1900, 2155), _rnd.Next(1, 12), _rnd.Next(1, 28));
FeatureDataRow<UInt32> feature = schema.NewRow((UInt32) i);
Char[] chars = new Char[_rnd.Next(0, 254)];
for (Int32 charIndex = 0; charIndex < chars.Length; charIndex++)
{
chars[charIndex] = (Char) (Byte) _rnd.Next(32, 126);
}
feature["Name"] = new String(chars);
feature["DateCreated"] = dateCreated;
feature["Visits"] = _rnd.Next(0, Int32.MaxValue) << _rnd.Next(0, 32);
feature["Weight"] = _rnd.NextDouble()*_rnd.Next(0, 100000);
ICoordinateSequence coordinates
= _geoFactory.CoordinateSequenceFactory.Create(generateCoordinates());
ILineString line = _geoFactory.CreateLineString(coordinates);
computedBounds.ExpandToInclude(line.Extents);
feature.Geometry = line;
rows.Add(feature);
}
shapeFile.Insert(rows);
shapeFile.Close();
shapeFile = new ShapeFileProvider(@"UnitTestData\Test3.shp", _geoFactory, _coordSysFactory, false);
shapeFile.Open();
Assert.AreEqual(10000, shapeFile.GetFeatureCount());
Assert.AreEqual(computedBounds, shapeFile.GetExtents());
FeatureDataTable dataTable = new FeatureDataTable("ShapeFile test", _geoFactory);
FeatureQueryExpression query = FeatureQueryExpression.Intersects(shapeFile.GetExtents());
IFeatureDataReader reader = shapeFile.ExecuteFeatureQuery(query);
dataTable.Load(reader, LoadOption.OverwriteChanges, null);
Assert.AreEqual(10000, dataTable.Rows.Count);
}示例2: ExecuteIntersectionQueryByBoundingBoxTest
public void ExecuteIntersectionQueryByBoundingBoxTest()
{
ShapeFileProvider shapeFile = new ShapeFileProvider(
BcRoadsShapeFile, _geoFactory, _coordSysFactory);
shapeFile.Open();
FeatureDataTable data = new FeatureDataTable("ShapeFile test", _geoFactory);
FeatureQueryExpression query = FeatureQueryExpression.Intersects(shapeFile.GetExtents());
IFeatureDataReader reader = shapeFile.ExecuteFeatureQuery(query);
data.Load(reader, LoadOption.OverwriteChanges, null);
Assert.AreEqual(shapeFile.GetFeatureCount(), data.Rows.Count);
shapeFile.Close();
}示例3: InsertFeatureTest
public void InsertFeatureTest()
{
FeatureDataTable<UInt32> schema = new FeatureDataTable<UInt32>("oid", _geoFactory);
schema.Columns.AddRange(new DataColumn[]
{
new DataColumn("Name", typeof (String)),
new DataColumn("DateCreated", typeof (DateTime)),
new DataColumn("Visits", typeof (Int32)),
new DataColumn("Weight", typeof (Single))
});
ShapeFileProvider shapeFile = ShapeFileProvider.Create("UnitTestData", "Test2", ShapeType.Point, schema, _geoFactory);
shapeFile.Open();
DateTime dateCreated = DateTime.Now;
FeatureDataRow<UInt32> feature = schema.NewRow(1);
feature["Name"] = "Test feature";
feature["DateCreated"] = dateCreated;
feature["Visits"] = 0;
feature["Weight"] = 100.0f;
feature.Geometry = _geoFactory.CreatePoint2D(1, 1);
shapeFile.Insert(feature);
shapeFile.Close();
shapeFile = new ShapeFileProvider(@"UnitTestData\Test2.shp", _geoFactory);
shapeFile.Open();
Assert.AreEqual(1, shapeFile.GetFeatureCount());
FeatureDataTable dataTable = new FeatureDataTable("ShapeFile test", _geoFactory);
FeatureQueryExpression query = FeatureQueryExpression.Intersects(_geoFactory.CreateExtents2D(0.9, 0.9, 1, 1));
IFeatureDataReader reader = shapeFile.ExecuteFeatureQuery(query);
dataTable.Load(reader, LoadOption.OverwriteChanges, null);
Assert.AreEqual(1, dataTable.Rows.Count);
FeatureDataRow newFeature = dataTable.Rows[0] as FeatureDataRow;
Assert.AreEqual(_geoFactory.CreatePoint2D(1, 1), newFeature.Geometry);
Assert.AreEqual(newFeature["Name"], "Test feature");
DateTime dateCreatedActual = (DateTime) newFeature["DateCreated"];
Assert.AreEqual(dateCreatedActual.Year, dateCreated.Year);
Assert.AreEqual(dateCreatedActual.Month, dateCreated.Month);
Assert.AreEqual(dateCreatedActual.Day, dateCreated.Day);
Assert.AreEqual(newFeature["Visits"], 0);
Assert.AreEqual(newFeature["Weight"], 100.0f);
shapeFile.Close();
}示例4: LoadingTableFromReader
public void LoadingTableFromReader()
{
FeatureDataTable table = new FeatureDataTable();
FeatureProvider provider = DataSourceHelper.CreateFeatureDatasource();
table.Load(provider.ExecuteIntersectionQuery(provider.GetExtents()));
}