public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
// TODO: Add ToolNewDisplacement.OnMouseDown implementation
if (!DataReady())
{
MessageBox.Show("内检测、中线图层设置不正确");
return;
}
object Miss = Type.Missing;
IMapControl2 pMapCtr = (((IToolbarControl)m_hookHelper.Hook).Buddy) as IMapControl2;
IMapControl3 m_MapControl = pMapCtr as IMapControl3;
if (pMapCtr != null)
{
//IGeoReference pGR = pRasterLayer as IGeoReference;
IPoint mapPoint = pMapCtr.ToMapPoint(X, Y);
m_NewLineFeedback.Display = pMapCtr.ActiveView.ScreenDisplay;
if (bFlag == true)//起始点
{
IPoint point = TransformToMapPoint(X, Y);
IPointSnapper ptSnapper = m_SnappingEnvironment.PointSnapper;
ISnappingResult snapresult = ptSnapper.Snap(point);
if (snapresult != null)
{
m_snappingFeed.UnInitialize();
m_snappingFeed.Initialize(m_MapControl.Object, m_SnappingEnvironment, true);
m_snappingFeed.Refresh(m_MapControl.ActiveView.ScreenDisplay.hDC);
m_SnappingEnvironment.SnappingType = esriSnappingType.esriSnappingTypePoint;
ISpatialFilter pSF = new SpatialFilterClass();
IPoint ProjPt = snapresult.Location;
ProjPt.Project(((IGeoDataset)(pIMULayer.FeatureClass)).SpatialReference);
pSF.Geometry = ProjPt;
pSF.GeometryField = pIMULayer.FeatureClass.ShapeFieldName;
pSF.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
IFeatureCursor pCursor = pIMULayer.FeatureClass.Search(pSF, false);
IFeature pFeature = pCursor.NextFeature();
if (pFeature != null)
{
IMUFeature = pFeature;
m_NewLineFeedback.Start(mapPoint);
bFlag = false;
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(pCursor);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pSF);
}
}
else//目标点
{
IPoint point = TransformToMapPoint(X, Y);
IPointSnapper ptSnapper = m_SnappingEnvironment.PointSnapper;
ISnappingResult snapresult = ptSnapper.Snap(point);
if (snapresult != null)
{
//m_snappingFeed.Refresh(m_MapControl.ActiveView.ScreenDisplay.hDC);
//m_snappingFeed.UnInitialize();
//m_snappingFeed.Refresh(m_MapControl.ActiveView.ScreenDisplay.hDC);
//m_snappingFeed.Initialize(m_MapControl.Object, m_SnappingEnvironment, true);
m_SnappingEnvironment.SnappingType = esriSnappingType.esriSnappingTypePoint;
ISpatialFilter pSF = new SpatialFilterClass();
IPoint ProjPt = snapresult.Location;
ProjPt.Project(((IGeoDataset)(pCenterlinePointLayer.FeatureClass)).SpatialReference);
pSF.Geometry = ProjPt;
pSF.GeometryField = pCenterlinePointLayer.FeatureClass.ShapeFieldName;
pSF.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
IFeatureCursor pCursor = pCenterlinePointLayer.FeatureClass.Search(pSF, false);
IFeature pFeature = pCursor.NextFeature();
if (pFeature != null)
{
CenterlinePointFeature = pFeature;
if (m_CenterlinePointFeatureList.Count > 0)
{
double newIMUM = Convert.ToDouble(IMUFeature.Value[m_IMUFeatureList[0].Fields.FindField("记录距离")]);
double newCenterlineM = Convert.ToDouble(CenterlinePointFeature.Value[m_CenterlinePointFeatureList[0].Fields.FindField("里程")]);
for (int i = 0; i < m_CenterlinePointFeatureList.Count; i++)
{
double previewIMUM = Convert.ToDouble(m_IMUFeatureList[i].Value[m_IMUFeatureList[0].Fields.FindField("记录距离")]);
double previewCentlineM = Convert.ToDouble(m_CenterlinePointFeatureList[i].Value[m_CenterlinePointFeatureList[0].Fields.FindField("里程")]);
if ((newIMUM - previewIMUM) * (newCenterlineM - previewCentlineM) <= 0)
{
MessageBox.Show("特征点不能交叉匹配.");
return;
}
}
}
m_IMUFeatureList.Add(IMUFeature);
m_CenterlinePointFeatureList.Add(CenterlinePointFeature);
bFlag = true;
IPolyline pPline = m_NewLineFeedback.Stop();
m_FrmVectorLinkTable.RefreshDataTable();
}
}
m_MapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewAll, null, null);
//m_snappingFeed.UnInitialize();
//m_snappingFeed.Initialize(m_MapControl.Object, m_SnappingEnvironment, true);
// m_snappingFeed.Refresh(m_MapControl.ActiveView.ScreenDisplay.hDC);
}
}
}
public void Refresh(int hdc)
{
m_snappingFeedback.Refresh(hdc);
}
