使用 Aspose.GIS for .NET 向文件地理数据库添加图层

using Aspose.Gis;
using Aspose.Gis.Geometries;
using Aspose.Gis.SpatialReferencing;
using System;

string dataDir = "C:\\GISData\\"; //包含数据集的目录
string originalPath = dataDir + "ExistingDataset.gdb";
string newDatasetPath = dataDir + "ModifiedDataset.gdb";

//复制目录的功能
RunExamples.CopyDirectory(originalPath, newDatasetPath);

using (var dataset = Dataset.Open(newDatasetPath, Drivers.FileGdb))
{
    Console.WriteLine($"Can Create Layers: {dataset.CanCreateLayers}"); //应该返回 True
}

using (var dataset = Dataset.Open(newDatasetPath, Drivers.FileGdb))
{
    //使用 WGS 84 空间参考系统创建新图层
    using (var layer = dataset.CreateLayer("NewLayer", SpatialReferenceSystem.Wgs84))
    {
        //添加属性架构
        layer.Attributes.Add(new FeatureAttribute("LocationName", AttributeDataType.String));

        //创建并添加要素
        var feature = layer.ConstructFeature();
        feature.SetValue("LocationName", "Sample Point");
        feature.Geometry = new Point(34.0522, -118.2437); //经度和纬度
        layer.Add(feature);
    }
}

using (var dataset = Dataset.Open(newDatasetPath, Drivers.FileGdb))
{
    using (var layer = dataset.OpenLayer("NewLayer"))
    {
        Console.WriteLine($"Feature Count: {layer.Count}");
        Console.WriteLine($"Attribute Value: {layer[0].GetValue<string>("LocationName")}");
    }
}