Aspose.GIS 26.9.0

Full List of Issues Covering all Changes in this Release

Public API and Backward Incompatible Changes

Following members have been added:

• None

Following members have been removed:

• None

Usage examples:

GISNET-2157: Fix GeoPackage Tile Writer Resource Management and Initialization

string path = "tiles.gpkg";
string validImage = "9-140-292.png";
string invalidImage = "invalid.png";

File.WriteAllText(invalidImage, "This is not a raster image.");

using (var dataset = (GeoPackageDataset)Dataset.Create(path, Drivers.GeoPackage))
{
    dataset.CreateTileLayer("tiles", validImage);

    using (var reopened = (GeoPackageDataset)Dataset.Open(path, Drivers.GeoPackage))
    {
        Console.WriteLine($"Tile layers: {reopened.TileLayersCount}");
    }

    try
    {
        dataset.CreateTileLayer("invalid_tiles", invalidImage);
    }
    catch
    {
        Console.WriteLine("Tile layer creation failed.");
    }

    dataset.CreateTileLayer("invalid_tiles", validImage);

    using (var reopened = (GeoPackageDataset)Dataset.Open(path, Drivers.GeoPackage))
    {
        Console.WriteLine($"Tile layers after retry: {reopened.TileLayersCount}");
    }
}

GISNET-2038: Gml To MapInfoTab - Preserve inferred GML string widths during schema restoration

var sourcePath = "gml6.gml";
var destinationPath = "output.tab";

var conversionOptions = new ConversionOptions
{
	SourceDriverOptions = new GmlOptions
	{
		RestoreSchema = true,
	},
};

VectorLayer.Convert(
	sourcePath,
	Drivers.Gml,
	destinationPath,
	Drivers.MapInfoTab,
	conversionOptions);

using (var layer = VectorLayer.Open(destinationPath, Drivers.MapInfoTab))
{
	Console.WriteLine("Feature count: " + layer.Count);

	foreach (var attribute in layer.Attributes)
	{
		Console.WriteLine($"{attribute.Name}: {attribute.DataType}, Width: {attribute.Width}");
	}
}

GISNET-2110: Preserve source SRS in MapInfo Interchange conversion

var sourcePath = "unified_districts.shp";
var destinationPath = "unified_districts.mif";

VectorLayer.Convert(
	sourcePath,
	Drivers.Shapefile,
	destinationPath,
	Drivers.MapInfoInterchange,
	new ConversionOptions());

using (var destination = VectorLayer.Open(
		   destinationPath,
		   Drivers.MapInfoInterchange))
{
	Console.WriteLine(destination.SpatialReferenceSystem);
	Console.WriteLine(destination.Count);

	var extent = destination.GetExtent().BoundingRectangle;

	Console.WriteLine(
		$"Extent: {extent.XMin}, {extent.YMin}, " +
		$"{extent.XMax}, {extent.YMax}");

	Console.WriteLine(destination[0].GetValue("Id"));
	Console.WriteLine(destination[0].GetValue("machoz"));
}

Console.WriteLine(File.ReadAllText(destinationPath));

GISNET-2125: Preserve non-ASCII attribute values in native MapInfo TAB

string sourcePath = "unified_districts.shp";
string destinationPath = "unified_districts.tab";

VectorLayer.Convert(
	sourcePath,
	Drivers.Shapefile,
	destinationPath,
	Drivers.MapInfoTab,
	new ConversionOptions());

using (var layer = VectorLayer.Open(destinationPath, Drivers.MapInfoTab))
{
	Console.WriteLine(layer[0].GetValue("machoz"));
}


**GISNET-2143: Release Resources For GeoPackage**

string pathForNewDataset = "CombineRasterAndVectorLayers.gpkg";
string pathToImage = "9-140-292.png"; 

using (var newDataset = (GeoPackageDataset)Dataset.Create(pathForNewDataset, Drivers.GeoPackage))
{
	using (VectorLayer newVectorLayer = newDataset.CreateLayer("Layer_1"))
	{
		IGeometry geometry = Geometry.FromText("POLYGON((10 20,10 40,30 40,30 20,10 20))", SpatialReferenceSystem.Wgs84);

		Feature feature = newVectorLayer.ConstructFeature();
		feature.Geometry = geometry;
		newVectorLayer.Add(feature);
	}

	newDataset.CreateTileLayer("tile_1", pathToImage);
}
File.Delete(pathForNewDataset);

GISNET-2152: Release Resources For MapInfoInterchange

string sourcePath = "info.tab.zdtmxwof.d02.tab"; 
string outputPath = "output.mif";

VectorLayer.Convert(sourcePath, Drivers.MapInfoTab, outputPath, Drivers.MapInfoInterchange);

File.Delete(outputPath);

GISNET-2164: Possibility To Read Tile From Dataset Immediately After Writing Tile

string pathForNewDataset = "WriteRasterImages.gpkg";
string pathToImage = "9-140-292.png"; //path to raster image

using (var newDataset = (GeoPackageDataset)Dataset.Create(pathForNewDataset, Drivers.GeoPackage))
{
	var tileMatrixSet2 = new GeoPackageTileMatrixSet(0, 0, 20037508.3427892, 20037508.3427892);
	var options2 = new GeoPackageTileOptions(tileMatrixSet2);

	newDataset.CreateTileLayer("tile_2", pathToImage, options2);
	XyzTiles tileLayer = newDataset.OpenTileLayer("tile_2");
}

GISNET-2083: Bug 5667: Shapefile to All formats- Conversion failed to Shapefile + output of MapInfoTab not seen in QGIS

string sourcePath = "geo_export.shp";
string destinationPath = "out.tab";

// Here was error
VectorLayer.Convert(sourcePath, Drivers.Shapefile, destinationPath, Drivers.MapInfoTab);

File.Delete(destinationPath);