Browse our Products

Aspose.GIS for .NET 24.7 Release Notes

This page contains release notes information for Aspose.GIS for .NET 24.7.

Major Features

Improved integration of the Aspose.GIS library with persistent geospatial information storage systems.

Full List of Issues Covering all Changes in this Release

Key	Summary	Category
GISNET-1662	Prepare example of how to сalсulate GPS Overlapping Coordinates more effective.	Enhancement
GISNET-1647	Implementation of fast method to Update Original Data in GDB File.	Enhancement
GISNET-1618	Support GDAL Driver For Linux.	Enhancement
GISNET-789	Exception “Unexpected end of file” In Shapefile.	Bug

Public API and Backward Incompatible Changes

Following members have been added:

M:Aspose.Gis.Formats.FileGdb.FileGdbDriver.EditLayer(Aspose.Gis.AbstractPath,Aspose.Gis.DriverOptions)

Following members have been removed:

none

Usage examples:

GISNET-1662. Prepare example of how to сalсulate GPS Overlapping Coordinates more effective.

            var pointSetA = Geometry.FromText("GEOMETRYCOLLECTION(POINT (30.645676 52.54734), POINT (30.631256 52.533558), POINT (30.661125 52.533558))", SpatialReferenceSystem.Wgs84); var pointSetB = Geometry.FromText("GEOMETRYCOLLECTION(POINT (30.653915 52.540867), POINT (30.677261 52.546713), POINT (30.683784 52.532096))", SpatialReferenceSystem.Wgs84); IGeometry poligonA = pointSetA.GetExtent().ToPolygon(); IGeometry poligonB = pointSetB.GetExtent().ToPolygon(); IGeometry intersection = poligonA.Intersection(poligonB); var transformation = SpatialReferenceSystem .Wgs84 .CreateTransformationTo(SpatialReferenceSystem.CreateFromEpsg(102013)); poligonA = transformation.Transform(poligonA); poligonB = transformation.Transform(poligonB); intersection = transformation.Transform(intersection); var intersectionArea = intersection.GetArea(); var poligonAArea = poligonA.GetArea(); var poligonBArea = poligonB.GetArea(); var poligonAPercentageOfOverlap = intersectionArea / poligonAArea * 100; var poligonBPercentageOfOverlap = intersectionArea / poligonBArea * 100; // trim the fractional part to the required number of digits (4) Assert.AreEqual(23.0407d, Math.Floor(poligonAPercentageOfOverlap * 10000)/10000); Assert.AreEqual(21.7240d, Math.Floor(poligonBPercentageOfOverlap * 10000)/10000);

GISNET-1647. Implementation of fast method to Update Original Data in GDB File.

    public class FileGdbEditTests : TestFixtureBase
    {
        public string TestOutPath => "file_gdb";

        [Test]
        public void AddFeatureTest()
        {
            var driver = Drivers.FileGdb;
            var path = Path.Combine(TestOutPath, "add.gdbtable");
            var field = "field";
            // arrange: create temp file
            using (var vectorLayer = driver.CreateLayer(path))
            {
                vectorLayer.Attributes.Add(new FeatureAttribute(field, AttributeDataType.String));
                AddFeature(vectorLayer, field, "0");
                AddFeature(vectorLayer, field, "1");
                AddFeature(vectorLayer, field, "2");
                AddFeature(vectorLayer, field, "3");
                AddFeature(vectorLayer, field, "4");
            }

            // act: add to end
            using (var layer = driver.EditLayer(AbstractPath.FromLocalPath(path)))
            {
                AddFeature(layer, field, "5");
            }

            // assert
            using (var resultLayer = driver.OpenLayer(path))
            {
                Assert.AreEqual(6, resultLayer.Count);
                Assert.AreEqual("0", resultLayer[0].GetValue(field));
                Assert.AreEqual("5", resultLayer[5].GetValue(field));
                Assert.AreEqual(GeometryType.Point, resultLayer.GeometryType);

                Assert.AreEqual(new Point(5, 5) { SpatialReferenceSystem = resultLayer.SpatialReferenceSystem }, resultLayer[5].Geometry);
            }
        }

        [Test]
        public void RemoveFeatureTest()
        {
            var driver = Drivers.FileGdb;
            var path = Path.Combine(TestOutPath, "remove.gdbtable");
            var field = "field";
            // arrange: create temp file
            using (var vectorLayer = driver.CreateLayer(path))
            {
                vectorLayer.Attributes.Add(new FeatureAttribute(field, AttributeDataType.String));
                AddFeature(vectorLayer, field, "0");
                AddFeature(vectorLayer, field, "1");
                AddFeature(vectorLayer, field, "2");
                AddFeature(vectorLayer, field, "3");
                AddFeature(vectorLayer, field, "4");
            }

            // act 
            using (var layer = driver.EditLayer(AbstractPath.FromLocalPath(path)))
            {
                layer.RemoveAt(1);
                layer.RemoveAt(2);
            }

            // assert
            using (var resultLayer = driver.OpenLayer(path))
            {
                Assert.AreEqual(3, resultLayer.Count);
                Assert.AreEqual("0", resultLayer[0].GetValue(field));
                Assert.AreEqual("2", resultLayer[1].GetValue(field));
                Assert.AreEqual("4", resultLayer[2].GetValue(field));
            }
        }

        [Test]
        public void UpdateFeatureTest()
        {
            var driver = Drivers.FileGdb;
            var path = Path.Combine(TestOutPath, "update.gdbtable");
            var field = "field";
            // arrange: create temp file
            using (var vectorLayer = driver.CreateLayer(path))
            {
                vectorLayer.Attributes.Add(new FeatureAttribute(field, AttributeDataType.String));
                AddFeature(vectorLayer, field, "0");
                AddFeature(vectorLayer, field, "1");
                AddFeature(vectorLayer, field, "2");
            }

            // act: update feature
            using (var layer = driver.EditLayer(AbstractPath.FromLocalPath(path)))
            {
                var feature = layer.ConstructFeature();
                feature.SetValue(field, "7");
                feature.Geometry = new Point(7, 7);
                layer.ReplaceAt(1, feature);
            }

            // assert
            using (var resultLayer = driver.OpenLayer(path))
            {
                Assert.AreEqual(3, resultLayer.Count);
                Assert.AreEqual("0", resultLayer[0].GetValue(field));
                Assert.AreEqual("7", resultLayer[1].GetValue(field));
                Assert.AreEqual("2", resultLayer[2].GetValue(field));

                Assert.AreEqual(new Point(7, 7) { SpatialReferenceSystem = resultLayer.SpatialReferenceSystem }, resultLayer[1].Geometry);
            }
        }

        [Test]
        public void RemoveThenAddAndUpdateFeatureTest()
        {
            var driver = Drivers.FileGdb;
            var path = Path.Combine(TestOutPath, "remove-add.gdbtable");
            var field = "field";
            // arrange: create temp file
            using (var vectorLayer = driver.CreateLayer(path))
            {
                vectorLayer.Attributes.Add(new FeatureAttribute(field, AttributeDataType.String));
                AddFeature(vectorLayer, field, "0");
                AddFeature(vectorLayer, field, "1");
                AddFeature(vectorLayer, field, "2");
                AddFeature(vectorLayer, field, "3");
                AddFeature(vectorLayer, field, "4");
            }

            // act: add to end
            using (var layer = driver.EditLayer(AbstractPath.FromLocalPath(path)))
            {
                // original list: //   0,1,2,3,4
                layer.RemoveAt(0);//-> [0], 1,2,3,4
                layer.RemoveAt(0);//-> [1], 2,3,4
                layer.RemoveAt(1);//-> 2, [3] ,4
                AddFeature(layer, field, "x0"); //-> 2,4, [x0]

                var feature = layer.ConstructFeature();
                feature.SetValue(field, 7);
                feature.Geometry = new Point(9, 9);
                layer.ReplaceAt(1, feature);
            }

            // assert
            using (var resultLayer = driver.OpenLayer(path))
            {
                Assert.AreEqual(3, resultLayer.Count);
                Assert.AreEqual("2", resultLayer[0].GetValue(field));
                Assert.AreEqual("7", resultLayer[1].GetValue(field));
                Assert.AreEqual("x0", resultLayer[2].GetValue(field));
                Assert.AreEqual(new Point(9, 9) { SpatialReferenceSystem = resultLayer.SpatialReferenceSystem }, resultLayer[1].Geometry);
            }
        }

        [Test]
        public void AddNewFeatureWithOption()
        {
            var driver = Drivers.FileGdb;
            var outfile = Path.Combine(TestOutPath, "edit-points-new-options.gdbtable");
            // arrange
            using (var layer = driver.CreateLayer(outfile))
            {
                var createdGeometries = new IGeometry[] { new Point(1, 1), new Point(2, 2) };
                DriverAssert.StoreGeometries(createdGeometries, layer);
            }

            var options = new FileGdbOptions() { XYPrecisionModel = PrecisionModel.Rounding(1) };
            // act
            using (var layer = driver.EditLayer(outfile, options))
            {
                var feature = layer.ConstructFeature();
                feature.Geometry = new Point(3.3333, 3.3333);
                layer.Add(feature);
            }

            // assert
            using (var layer = driver.OpenLayer(outfile, options))
            {
                Assert.AreEqual(3, layer.Count);
                Assert.AreEqual(null, layer.SpatialReferenceSystem);
                Assert.AreEqual(GeometryType.Point, layer.GeometryType);
                Assert.AreEqual("Min (X = 1, Y = 1), Max (X = 3.3, Y = 3.3)", layer.GetExtent().ToString());

                Assert.AreEqual(new Point(1, 1), layer[0].Geometry);
                Assert.AreEqual(new Point(2, 2), layer[1].Geometry);
                Assert.AreEqual(new Point(3.3, 3.3), layer[2].Geometry);
            }
        }

        [Test]
        public void PerformanceDeleteTest()
        {
            var driver = Drivers.FileGdb;
            var path = Path.Combine(TestOutPath, "performanceRemove.gdbtable");
            var field = "field";
            // arrange: create temp file
            using (var vectorLayer = driver.CreateLayer(path))
            {
                vectorLayer.Attributes.Add(new FeatureAttribute(field, AttributeDataType.String));
                GenerateFeatures(vectorLayer, field, 999002);
            }

            // act 
            using (var layer = driver.EditLayer(AbstractPath.FromLocalPath(path)))
            {
                layer.RemoveAt(499123);
            }

            // assert
            using (var resultLayer = driver.OpenLayer(path))
            {
                Assert.AreEqual(999001, resultLayer.Count);
            }
        }

        [Test]
        public void PerformanceReplaceTest()
        {
            var driver = Drivers.FileGdb;
            var path = Path.Combine(TestOutPath, "performanceRemove.gdbtable");
            var field = "field";
            // arrange: create temp file
            using (var vectorLayer = driver.CreateLayer(path))
            {
                vectorLayer.Attributes.Add(new FeatureAttribute(field, AttributeDataType.String));
                GenerateFeatures(vectorLayer, field, 999000);
            }

            // act 
            using (var layer = driver.EditLayer(AbstractPath.FromLocalPath(path)))
            {
                var feature = layer.ConstructFeature();
                feature.SetValue(field, "7");
                feature.Geometry = new Point(7, 7);
                layer.ReplaceAt(499000, feature);
            }

            // assert
            using (var resultLayer = driver.OpenLayer(path))
            {
                Assert.AreEqual("7", resultLayer[499000].GetValue(field));
                Assert.AreEqual(new Point(7, 7) { SpatialReferenceSystem = resultLayer.SpatialReferenceSystem }, resultLayer[499000].Geometry);
            }
        }

        private void AddFeature(VectorLayer layer, string attributeName, string value)
        {
            var feature = layer.ConstructFeature();
            feature.SetValue(attributeName, value);
            feature.Geometry = new Point(5, 5);
            layer.Add(feature);
        }

        private void GenerateFeatures(VectorLayer layer, string attributeName, long count)
        {
            for (int i = 0; i < count; i++)
            {
                var feature = layer.ConstructFeature();
                feature.SetValue(attributeName, i);
                layer.Add(feature);
            }
        }
    }

GISNET-1618. Support GDAL Driver For Linux.

            var layer = Drivers.GDAL.OpenLayer("cities.gpkg"), options);

            Assert.AreEqual(1, layer.Count);
            Assert.AreEqual(0, layer.Attributes.Count);
            Assert.AreEqual(GeometryType.LineString, layer.GeometryType);

GISNET-789. Exception “Unexpected end of file” In Shapefile.

      // Use IsIgnoreWrongData to aboid out of range latitude in broken Shapefile
            string sourcePath = Path.Combine("shapefile", @"issues\taxi_zones.shp");
            string destinationPath = "out.shp";
            ConversionOptions options = new ConversionOptions();
            options.SourceDriverOptions = new Gis.Formats.Shapefile.ShapefileOptions { IsIgnoreWrongData = true };
            VectorLayer.Convert(sourcePath, Drivers.Shapefile, destinationPath, Drivers.Shapefile, options);
            using (var layer = VectorLayer.Open(destinationPath, Drivers.Shapefile))
            {
                Assert.AreEqual(263, layer.Count);
                Assert.AreEqual(6, layer.Attributes.Count);
            }