Ejemplos de GisSharpBlog.NetTopologySuite.LinearReferencing.LengthIndexedLine en C# (CSharp)

Ejemplo n.º 1

Archivo: LengthIndexedLineSample.cs Proyecto: lishxi/_SharpMap

public SharpMap.Geometries.MultiLineString SplitLineString(
    SharpMap.Geometries.LineString lineString, 
    System.Double length)
{
    if (lineString == null || lineString.IsEmpty())
        throw new System.ArgumentException("Linestring is null or Empty", "lineString");

    var gf = new GisSharpBlog.NetTopologySuite.Geometries.GeometryFactory();
    var ntsLine = (GisSharpBlog.NetTopologySuite.Geometries.LineString)
                    SharpMap.Converters.NTS.GeometryConverter.ToNTSGeometry(lineString, gf);

    var ret = new SharpMap.Geometries.MultiLineString();
    var lil = new GisSharpBlog.NetTopologySuite.LinearReferencing.LengthIndexedLine(ntsLine);

    double currentLength = 0d;
    while (currentLength  < ntsLine.Length)
    {
        var tmpLine = (GisSharpBlog.NetTopologySuite.Geometries.LineString)
            lil.ExtractLine(currentLength, currentLength + length);
        ret.LineStrings.Add((SharpMap.Geometries.LineString)
            SharpMap.Converters.NTS.GeometryConverter.ToSharpMapGeometry(tmpLine));
        currentLength += length;
    }
    return ret;
}

Ejemplo n.º 2

        public SharpMap.Geometries.MultiLineString SplitLineString(
            SharpMap.Geometries.LineString lineString,
            System.Double length)
        {
            if (lineString == null || lineString.IsEmpty())
            {
                throw new System.ArgumentException("Linestring is null or Empty", "lineString");
            }

            var gf      = new GisSharpBlog.NetTopologySuite.Geometries.GeometryFactory();
            var ntsLine = (GisSharpBlog.NetTopologySuite.Geometries.LineString)
                          SharpMap.Converters.NTS.GeometryConverter.ToNTSGeometry(lineString, gf);

            var ret = new SharpMap.Geometries.MultiLineString();
            var lil = new GisSharpBlog.NetTopologySuite.LinearReferencing.LengthIndexedLine(ntsLine);

            double currentLength = 0d;

            while (currentLength < ntsLine.Length)
            {
                var tmpLine = (GisSharpBlog.NetTopologySuite.Geometries.LineString)
                              lil.ExtractLine(currentLength, currentLength + length);
                ret.LineStrings.Add((SharpMap.Geometries.LineString)
                                    SharpMap.Converters.NTS.GeometryConverter.ToSharpMapGeometry(tmpLine));
                currentLength += length;
            }
            return(ret);
        }