private void btnConstructPolyline_Click(object sender, EventArgs e)
{
if (gfactory == null)
gfactory = new GeometryFactory();
point = gfactory.CreatePoint(gviVertexAttribute.gviVertexAttributeZ);
polyline = gfactory.CreateGeometry(gviGeometryType.gviGeometryPolyline, gviVertexAttribute.gviVertexAttributeZ) as IPolyline;
int length = 100;
for (int i = 0; i < length; i++)
{
point.SetCoords(i, 2 * i, 0, 0, i + 1);
polyline.AppendPoint(point);
}
if (polyline == null)
return;
CompoundLine geo = new CompoundLine();
// Geometry属性
geo.Dimension = polyline.Dimension;
if (polyline.Envelope != null)
{
geo.MaxX = polyline.Envelope.MaxX;
geo.MaxY = polyline.Envelope.MaxY;
geo.MaxZ = polyline.Envelope.MaxZ;
geo.MinX = polyline.Envelope.MinX;
geo.MinY = polyline.Envelope.MinY;
geo.MinZ = polyline.Envelope.MinZ;
}
geo.GeometryType = polyline.GeometryType;
geo.IsEmpty = polyline.IsEmpty;
geo.IsValid = polyline.IsValid;
geo.VertexAttribute = polyline.VertexAttribute;
geo.HasId = polyline.HasId();
geo.HasM = polyline.HasM();
geo.HasZ = polyline.HasZ();
// Curve属性
geo.IsClosed = polyline.IsClosed;
geo.Length = polyline.Length;
if (polyline.StartPoint != null)
{
geo.StartPointX = polyline.StartPoint.X;
geo.StartPointY = polyline.StartPoint.Y;
geo.StartPointZ = polyline.StartPoint.Z;
}
if (polyline.EndPoint != null)
{
geo.EndPointX = polyline.EndPoint.X;
geo.EndPointY = polyline.EndPoint.Y;
geo.EndPointZ = polyline.EndPoint.Z;
}
// CompoundLine属性
geo.PointCount = polyline.PointCount;
geo.SegmentCount = polyline.SegmentCount;
this.propertyGrid1.SelectedObject = geo;
}