private FdoRow Flatten(FdoRow row)
        {
            //Not applicable?
            if (row.Geometry == null)
            {
                return(row);
            }

            //Already 2D? Move along!
            if (FdoGeometryUtil.Is2D(row.Geometry))
            {
                return(row);
            }

            IGeometry geom  = row.Geometry;
            IGeometry trans = FdoGeometryUtil.Flatten(geom, _geomFactory);

            //Dispose the original if flatten returned a new instance
            if (!IGeometry.ReferenceEquals(geom, trans))
            {
                row.Geometry = trans;
                geom.Dispose();
            }
            return(row);
        }
Пример #2
0
        private void btnPreview_Click(object sender, EventArgs e)
        {
            try
            {
                using (IGeometry fgeom = _geomFactory.CreateGeometry(txtGeometry.Text))
                {
                    byte[] wkb = null;
                    if (!FdoGeometryUtil.Is2D(fgeom))
                    {
                        using (IGeometry ffgeom = FdoGeometryUtil.Flatten(fgeom, _geomFactory))
                        {
                            wkb = _geomFactory.GetWkb(ffgeom);
                        }
                    }
                    else
                    {
                        wkb = _geomFactory.GetWkb(fgeom);
                    }

                    SharpMap.Geometries.Geometry sgeom = SharpMap.Geometries.Geometry.GeomFromWKB(wkb);
                    _layer.DataSource = new SharpMap.Data.Providers.GeometryProvider(sgeom);
                    SharpMap.Geometries.BoundingBox bbox = _mapCtl.Map.GetExtents();
                    bbox = bbox.Grow(2.0, 2.0);
                    _mapCtl.Map.ZoomToBox(bbox);
                    _mapCtl.Refresh();
                    btnOK.Enabled = true;
                }
            }
            catch (Exception)
            {
                MessageService.ShowError("The specified text does not constitute a valid geometry");
                btnOK.Enabled = false;
            }
        }
Пример #3
0
 /// <summary>
 /// Converts an FDO Geometry to a SharpMap geometry
 /// </summary>
 /// <param name="geom">The FDO geometry</param>
 /// <returns></returns>
 public static Sm.Geometry FromFdoGeometry(FdoGeometry geom, OSGeo.FDO.Geometry.FgfGeometryFactory geomFactory)
 {
     if (FdoGeometryUtil.Is2D(geom.InternalInstance))
     {
         //Get the WKB form of the geometry
         byte[] wkb = FdoGeometryFactory.Instance.GetWkb(geom.InternalInstance);
         return(GeometryFromWKB.Parse(wkb));
     }
     else
     {
         using (OSGeo.FDO.Geometry.IGeometry flattened = FdoGeometryUtil.Flatten(geom.InternalInstance, geomFactory))
         {
             //Get the WKB form of the geometry
             byte[] wkb = FdoGeometryFactory.Instance.GetWkb(flattened);
             return(GeometryFromWKB.Parse(wkb));
         }
     }
 }