public override void OnMouseUp(int Button, int Shift, int X, int Y)
{
if (Button != 1 || m_pFeature == null || m_pVertexFeed == null || m_HitSegmentIndex == -1)
{
return;
}
IPoint pPnt = m_MapControl.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y);
//如果开启捕捉则以捕捉到的点为准
if (MoData.v_bSnapStart && m_pSnapPoint != null)
{
pPnt = m_pSnapPoint;
}
ISegmentCollection pSegmentCollection = m_pFeature.Shape as ISegmentCollection;
//检查是否点击第一点
if (m_HitSegmentIndex == 0)
{
//如果是第一点且是Polygon，更新最后一段
if (m_pFeature.Shape is IPolygon)
{
pPnt.Z = pSegmentCollection.get_Segment(pSegmentCollection.SegmentCount - 1).ToPoint.Z;
pSegmentCollection.get_Segment(pSegmentCollection.SegmentCount - 1).ToPoint = pPnt;
}
}
else
{
//如果不是第一点，更新上一段(FromPoint as anchor)
pPnt.Z = pSegmentCollection.get_Segment(m_HitSegmentIndex - 1).ToPoint.Z;
pSegmentCollection.get_Segment(m_HitSegmentIndex - 1).ToPoint = pPnt;
}
//检查是否点击最后一个节点
if (m_HitSegmentIndex == pSegmentCollection.SegmentCount)
{
//如果是点击最后一个节点,并且是polygon，更新第一段
if (m_pFeature.Shape is IPolygon)
{
pPnt.Z = pSegmentCollection.get_Segment(0).FromPoint.Z;
pSegmentCollection.get_Segment(0).FromPoint = pPnt;
}
}
else
{
//如果不是最后一个节点，更新下一段(ToPoint as anchor)
pPnt.Z = pSegmentCollection.get_Segment(m_HitSegmentIndex).FromPoint.Z;
pSegmentCollection.get_Segment(m_HitSegmentIndex).FromPoint = pPnt;
}
StoreFeature(m_pFeature, pSegmentCollection, MoData.v_CurWorkspaceEdit);
m_MapControl.ActiveView.Refresh();
m_pVertexFeed = null;
m_bMouseDown = false;
m_HitSegmentIndex = 0;
}
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
if (Button != 1 || m_pFeature == null)
{
return;
}
IPoint pPnt = m_MapControl.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y);
//获取选中的节点
IHitTest pHitTest = m_pFeature.Shape as IHitTest;
IPoint pHitPoint = new PointClass();
double dblHitDistance = 0;
int lPart = 0;
bool bRight = false;
bool bHitTest = pHitTest.HitTest(pPnt, m_dblTolearance, esriGeometryHitPartType.esriGeometryPartVertex, pHitPoint, ref dblHitDistance, ref lPart, ref m_HitSegmentIndex, ref bRight);
if (bHitTest == false)
{
return;
}
if (m_HitSegmentIndex == -1)
{
return; //未选中节点
}
ISegmentCollection pSegmentCollection = m_pFeature.Shape as ISegmentCollection;
m_pVertexFeed = new VertexFeedbackClass();
m_pVertexFeed.Display = m_MapControl.ActiveView.ScreenDisplay;
//检查是否点击第一点
if (m_HitSegmentIndex == 0)
{
//如果是第一点且是Polygon，加最后一段 (FromPoint as anchor)
if (m_pFeature.Shape is IPolygon)
{
m_pVertexFeed.AddSegment(pSegmentCollection.get_Segment(pSegmentCollection.SegmentCount - 1), true);
}
}
else
{
//如果不是第一点，并加上一段(FromPoint as anchor)
m_pVertexFeed.AddSegment(pSegmentCollection.get_Segment(m_HitSegmentIndex - 1), true);
}
//检查是否点击最后一个节点
if (m_HitSegmentIndex == pSegmentCollection.SegmentCount)
{
//如果是点击最后一个节点,并且是polygon，加第一段
if (m_pFeature.Shape is IPolygon)
{
m_pVertexFeed.AddSegment(pSegmentCollection.get_Segment(0), false);
}
}
else
{
//如果不是最后一个节点，就加下一段(ToPoint as anchor)
m_pVertexFeed.AddSegment(pSegmentCollection.get_Segment(m_HitSegmentIndex), false);
}
m_bMouseDown = true;
}
