public void ReadShapeFile_ShapeFileWithSingeFeatureMultiplePolygons_ReturnShapes()
{
// Setup
string shape = TestHelper.GetTestDataPath(TestDataPath.Core.Components.Gis.IO,
"Single_Multi-Polygon_with_ID.shp");
using (var reader = new PolygonShapeFileReader(shape))
{
// Call
var polygon = (MapPolygonData)reader.ReadShapeFile();
// Assert
Assert.IsNotNull(polygon);
MapFeature[] polygonFeatures = polygon.Features.ToArray();
Assert.AreEqual(1, polygonFeatures.Length);
MapGeometry[] polygonGeometries = polygonFeatures[0].MapGeometries.ToArray();
Assert.AreEqual(2, polygonGeometries.Length);
IEnumerable <Point2D>[] polygonPointCollections = polygonGeometries[0].PointCollections.ToArray();
Assert.AreEqual(1, polygonPointCollections.Length);
Point2D[] firstPointCollection = polygonPointCollections[0].ToArray();
Assert.AreEqual(7, firstPointCollection.Length);
Assert.AreEqual(-2.257, firstPointCollection[4].X, 1e-1);
Assert.AreEqual(0.419, firstPointCollection[4].Y, 1e-1);
Assert.AreEqual(1, polygonFeatures[0].MetaData.Count);
Assert.AreEqual(1, polygonFeatures[0].MetaData["id"]);
Assert.AreEqual("id", polygon.SelectedMetaDataAttribute);
}
}
public void ReadShapeFile_WithoutName_MapDataHasDefaultName(string name)
{
// Setup
string shapeWithOnePolygon = TestHelper.GetTestDataPath(TestDataPath.Core.Components.Gis.IO,
"Single_Polygon_with_ID.shp");
using (var reader = new PolygonShapeFileReader(shapeWithOnePolygon))
{
// Call
var polygon = (MapPolygonData)reader.ReadShapeFile(name);
// Assert
Assert.AreEqual("Polygoon", polygon.Name);
}
}
public void ReadShapeFile_ShapeFileWithMultiplePolygonFeatures_ReturnShapes()
{
// Setup
string shapeWithMultiplePolygons = TestHelper.GetTestDataPath(TestDataPath.Core.Components.Gis.IO,
"Multiple_Polygon_with_ID.shp");
using (var reader = new PolygonShapeFileReader(shapeWithMultiplePolygons))
{
// Precondition
Assert.AreEqual(4, reader.GetNumberOfFeatures());
// Call
var polygons = (MapPolygonData)reader.ReadShapeFile();
// Assert
MapFeature[] features = polygons.Features.ToArray();
Assert.AreEqual(4, features.Length);
Assert.AreEqual(1, polygons.MetaData.Count());
Assert.AreEqual("id", polygons.SelectedMetaDataAttribute);
#region Assertsions for 'polygon1'
MapFeature polygon1 = features[0];
MapGeometry[] polygon1Geometry = polygon1.MapGeometries.ToArray();
Assert.AreEqual(1, polygon1Geometry.Length);
IEnumerable <Point2D>[] polygon1PointCollections = polygon1Geometry[0].PointCollections.ToArray();
Assert.AreEqual(1, polygon1PointCollections.Length);
Point2D[] polygon1FirstPointCollection = polygon1PointCollections[0].ToArray();
Assert.AreEqual(6, polygon1FirstPointCollection.Length);
Assert.AreEqual(-1.070, polygon1FirstPointCollection[2].X, 1e-1);
Assert.AreEqual(0.066, polygon1FirstPointCollection[2].Y, 1e-1);
Assert.AreEqual(1, polygon1.MetaData.Count);
Assert.AreEqual(4, polygon1.MetaData["id"]);
#endregion
#region Assertsions for 'polygon2'
MapFeature polygon2 = features[1];
MapGeometry[] polygon2Geometry = polygon2.MapGeometries.ToArray();
Assert.AreEqual(1, polygon2Geometry.Length);
IEnumerable <Point2D>[] polygon2PointCollections = polygon2Geometry[0].PointCollections.ToArray();
Assert.AreEqual(1, polygon2PointCollections.Length);
Point2D[] polygon2FirstPointCollection = polygon2PointCollections[0].ToArray();
Assert.AreEqual(25, polygon2FirstPointCollection.Length);
Assert.AreEqual(-2.172, polygon2FirstPointCollection[23].X, 1e-1);
Assert.AreEqual(0.212, polygon2FirstPointCollection[23].Y, 1e-1);
Assert.AreEqual(1, polygon2.MetaData.Count);
Assert.AreEqual(3, polygon2.MetaData["id"]);
#endregion
#region Assertsions for 'polygon3'
MapFeature polygon3 = features[2];
MapGeometry[] polygon3Geometry = polygon3.MapGeometries.ToArray();
Assert.AreEqual(1, polygon3Geometry.Length);
IEnumerable <Point2D>[] polygon3PointCollections = polygon3Geometry[0].PointCollections.ToArray();
Assert.AreEqual(1, polygon3PointCollections.Length);
Point2D[] polygon3FirstPointCollection = polygon3PointCollections[0].ToArray();
Assert.AreEqual(10, polygon3FirstPointCollection.Length);
Assert.AreEqual(-1.091, polygon3FirstPointCollection[0].X, 1e-1);
Assert.AreEqual(0.566, polygon3FirstPointCollection[0].Y, 1e-1);
Assert.AreEqual(1, polygon3.MetaData.Count);
Assert.AreEqual(2, polygon3.MetaData["id"]);
#endregion
#region Assertsions for 'polygon4'
MapFeature polygon4 = features[3];
MapGeometry[] polygon4Geometry = polygon4.MapGeometries.ToArray();
Assert.AreEqual(1, polygon4Geometry.Length);
IEnumerable <Point2D>[] polygon4PointCollections = polygon4Geometry[0].PointCollections.ToArray();
Assert.AreEqual(1, polygon4PointCollections.Length);
Point2D[] polygon4FirstPointCollection = polygon4PointCollections[0].ToArray();
Assert.AreEqual(9, polygon4FirstPointCollection.Length);
Assert.AreEqual(-1.917, polygon4FirstPointCollection[8].X, 1e-1);
Assert.AreEqual(0.759, polygon4FirstPointCollection[8].Y, 1e-1);
Assert.AreEqual(1, polygon4.MetaData.Count);
Assert.AreEqual(1, polygon4.MetaData["id"]);
#endregion
}
}
private ReadResult <FeatureBasedMapData> ReadFeatureBasedMapData()
{
try
{
string shapeFileName = Path.GetFileNameWithoutExtension(FilePath);
Shapefile featureSet = Shapefile.OpenFile(FilePath);
FeatureBasedMapData importedData;
switch (featureSet.FeatureType)
{
case FeatureType.Point:
case FeatureType.MultiPoint:
using (ShapeFileReaderBase reader = new PointShapeFileReader(FilePath))
{
importedData = reader.ReadShapeFile(shapeFileName);
}
break;
case FeatureType.Line:
using (ShapeFileReaderBase reader = new PolylineShapeFileReader(FilePath))
{
importedData = reader.ReadShapeFile(shapeFileName);
}
break;
case FeatureType.Polygon:
using (ShapeFileReaderBase reader = new PolygonShapeFileReader(FilePath))
{
importedData = reader.ReadShapeFile(shapeFileName);
}
break;
default:
throw new CriticalFileReadException(Resources.FeatureBasedMapDataImporter_Import_ShapeFile_Contains_Unsupported_Data);
}
return(new ReadResult <FeatureBasedMapData>(false)
{
Items = new[]
{
importedData
}
});
}
catch (ArgumentException)
{
return(HandleCriticalFileReadError(Resources.FeatureBasedMapDataImporter_Import_File_does_not_contain_geometries));
}
catch (FileNotFoundException)
{
return(HandleCriticalFileReadError(Resources.FeatureBasedMapDataImporter_Import_File_does_not_exist_or_misses_needed_files));
}
catch (IOException)
{
return(HandleCriticalFileReadError(Resources.FeatureBasedMapDataImporter_Import_An_error_occurred_when_trying_to_read_the_file));
}
catch (CriticalFileReadException e)
{
return(HandleCriticalFileReadError(e.Message));
}
catch (Exception)
{
// Because NullReferenceException or NotImplementedException when reading in a corrupt shape file
// from a third party library is expected, we catch all the exceptions here.
return(HandleCriticalFileReadError(Resources.FeatureBasedMapDataImporter_Import_An_error_occurred_when_trying_to_read_the_file));
}
}