private void btnSelect_Click(object sender, EventArgs e)
{
FrmCoordinateSystem frm = new FrmCoordinateSystem(m_mapControl, m_mapCtlHide);
if (frm.ShowDialog() == DialogResult.OK)
{
pSpaReference = frm.pSpaReference;
richTextReference.Text = ClsGDBDataCommon.GetReferenceString(frm.pSpaReference);
}
}
//直接更改图层坐标系统，并不重投影数据值
private void btnChangeCoordinate_Click(object sender, EventArgs e)
{
ISpatialReference pSpatialReference = null;
FrmCoordinateSystem frm = new FrmCoordinateSystem(m_pLayer);
if (frm.ShowDialog() == DialogResult.OK)
{
pSpatialReference = frm.pSpaReference;
if (m_pLayer is IFeatureLayer)
{
IFeatureLayer pFLayer = m_pLayer as IFeatureLayer;
IFeatureClass pFClass = pFLayer.FeatureClass;
if (pFClass == null)
{
return;
}
IFeatureDataset pFDataset = pFClass.FeatureDataset;
if (pFDataset == null)
{
IGeoDatasetSchemaEdit geoSchemaEdit = pFClass as IGeoDatasetSchemaEdit;
if (geoSchemaEdit == null)
{
return;
}
if (geoSchemaEdit.CanAlterSpatialReference == true)
{
geoSchemaEdit.AlterSpatialReference(pSpatialReference);
}
}
else
{
IGeoDatasetSchemaEdit geoSchemaEdit = pFDataset as IGeoDatasetSchemaEdit;
if (geoSchemaEdit == null)
{
return;
}
if (geoSchemaEdit.CanAlterSpatialReference == true)
{
geoSchemaEdit.AlterSpatialReference(pSpatialReference);
}
}
}
else if (m_pLayer is IRasterLayer)
{
IRasterLayer pRLayer = m_pLayer as IRasterLayer;
IRaster pRaster = pRLayer.Raster;
IRaster2 pRaster2 = pRaster as IRaster2;
IRasterDataset pRDataset = pRaster2.RasterDataset;
IGeoDatasetSchemaEdit geoSchemaEdit = pRDataset as IGeoDatasetSchemaEdit;
if (geoSchemaEdit == null)
{
return;
}
if (geoSchemaEdit.CanAlterSpatialReference == true)
{
geoSchemaEdit.AlterSpatialReference(pSpatialReference);
pRLayer.CreateFromDataset(pRDataset);
}
}
string strCoord = string.Empty;
if (m_pLayer is IGeoDataset)
{
IGeoDataset geoDataset = m_pLayer as IGeoDataset;
if (geoDataset == null)
{
this.txtCoordinateSystem.Text = string.Empty;
}
else
{
ISpatialReference reference = geoDataset.SpatialReference;
strCoord = ClsGDBDataCommon.GetReferenceString(reference);
txtCoordinateSystem.Text = strCoord;
txtCoordinateSystem.Update();
}
}
}
}