ArcGiS engine 10
IDE??VS2010 C++
I search element(Geometry type is point), and want to flash it use FlashShape method. But i search different elements, the FlashShape always flash on the same point, why? I get point (X, Y) through point->get_X(&X) and point->get_Y(&Y), and compare it with mapX, mapY where i through mouse click event, they are different. The following is code snippet??
CSearchDlg dlg;
if (dlg.DoModal() == IDOK)
{
const CString layerName = dlg.m_layerName;
const CString featureName = dlg.m_featureName;
CString whereClause;
whereClause.Format(_T("name = '%s'"), featureName);
HRESULT hr;
IQueryFilterPtr pQueryFilter(CLSID_QueryFilter);
pQueryFilter->put_WhereClause(CComBSTR(whereClause));
IMapPtr pMap;
m_mapCtrl->get_Map(&pMap);
long layerCount = 0;
pMap->get_LayerCount(&layerCount);
BSTR bsCurLayerName = NULL;
BSTR bsLayerName = CComBSTR(layerName);
int i;
ILayerPtr pLayer = NULL;
for (i = 0; i < layerCount; i++)
{
pMap->get_Layer(i, &pLayer);
pLayer->get_Name(&bsCurLayerName);
if (_tcsicmp(bsCurLayerName, bsLayerName) == 0)
{
break;
}
}
if (layerCount == i)
{
CString msg;
msg.Format(_T("Can not find layer %s"), layerName);
AfxMessageBox(msg);
return;
}
IFeatureLayerPtr pFeatureLayer(pLayer);
if (pFeatureLayer == 0)
{
TRACE(_T("Not found\n"));
return;
}
IFeatureSelectionPtr pFeatureSel(pFeatureLayer);
hr = pFeatureSel->SelectFeatures(pQueryFilter, esriSelectionResultNew, VARIANT_FALSE);
if (FAILED(hr))
{
TRACE(_T("hr %08X\n"), hr);
return;
}
ISelectionSetPtr pSelectionSet;
hr = pFeatureSel->get_SelectionSet(&pSelectionSet);
if (FAILED(hr))
{
TRACE(_T("hr %08X\n"), hr);
return;
}
esriICursorPtr pCursor;
hr = pSelectionSet->Search(NULL, VARIANT_TRUE, &pCursor);
if (FAILED(hr))
{
TRACE(_T("hr %08X\n"), hr);
return;
}
IFeatureCursorPtr pFeatureCur = pCursor;
IFeaturePtr pFeature;
pFeatureCur->NextFeature(&pFeature);
IActiveViewPtr pActiveView;
m_mapCtrl->get_ActiveView(&pActiveView);
IScreenDisplayPtr pScreenDisplay;
pActiveView->get_ScreenDisplay(&pScreenDisplay);
while (pFeature != NULL)
{
IGeometryPtr pGeometry;
pFeature->get_Shape(&pGeometry);
esriGeometryType ShapeType;
pGeometry->get_GeometryType(&ShapeType);
if (esriGeometryPoint == ShapeType)
{
ISimpleFillSymbolPtr pFillSymbol(CLSID_SimpleFillSymbol);
IMarkerSymbolPtr pMarkSymbol(CLSID_SimpleMarkerSymbol);
ISymbolPtr pSymbol;
IRgbColorPtr pColor(CLSID_RgbColor);
pColor->put_RGB(RGB(255, 0, 0));
pMarkSymbol->put_Size(20);
pMarkSymbol->put_Color(pColor);
pSymbol = (ISymbolPtr) pMarkSymbol;
pSymbol->put_ROP2(esriROPNotXOrPen);
pScreenDisplay->UpdateWindow();
m_mapCtrl->FlashShape(pGeometry, 10, 400, _variant_t((IUnknown* )pSymbol));
}
pFeatureCur->NextFeature(&pFeature);
}
}
