/// <summary>
/// 绘制椭圆
/// </summary>
/// <params name="pEnvelope"></params>
public void DrawEllipse(IEnvelope pEnvelope)
{
IFeatureLayer pFeatureLayer = m_pCurrentLayer as IFeatureLayer;
IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;
IConstructEllipticArc constructEllipticArc = new EllipticArcClass();
constructEllipticArc.ConstructEnvelope(pEnvelope);
IEllipticArc ellipse = constructEllipticArc as IEllipticArc;
ISegment segment = ellipse as ISegment;
ISegmentCollection pPolyline = new Polyline() as ISegmentCollection;
object Missing = Type.Missing;
pPolyline.AddSegment(segment, ref Missing, ref Missing);
IGeometry poly = pPolyline as IGeometry;
IFeature pCircleFeature = pFeatureClass.CreateFeature();
pCircleFeature.Shape = poly as PolylineClass;
pCircleFeature.Store();
//局部刷新
IInvalidArea pInvalidArea = new InvalidAreaClass();
pInvalidArea.Add(poly);
pInvalidArea.Display = m_hookHelper.ActiveView.ScreenDisplay;
pInvalidArea.Invalidate((short)esriScreenCache.esriAllScreenCaches);
}
public override void OnKeyDown(int keyCode, int Shift)
{
if (keyCode == (int)Keys.Escape)
{
m_pFeedback = null;
m_pEllipticArc = null;
m_pEnvFeedback = null;
m_lMouseDownCount = 0;
m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
}
private IGeometry EllipticArcTransPolygon(IEllipticArc pEll)
{
try
{
object missing = Type.Missing;
ISegmentCollection pSegmentColl = new RingClass();
pSegmentColl.AddSegment((ISegment)pEll, ref missing, ref missing);
IRing pRing = (IRing)pSegmentColl;
pRing.Close(); //得到闭合的环
IGeometryCollection pGeometryCollection = new PolygonClass();
pGeometryCollection.AddGeometry(pRing, ref missing, ref missing); //环转面
IPolygon pPolygon = (IPolygon)pGeometryCollection;
return(pPolygon);
}
catch (Exception ex)
{
throw ex;
}
}
public override void OnMouseMove(int Button, int Shift, int X, int Y)
{
m_pMovePoint = m_hookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y);
m_pMovePoint = GIS.GraphicEdit.SnapSetting.getSnapPoint(m_pMovePoint);
if (m_lMouseDownCount == 1)
{
m_bCreated = false;
IEnvelope pEnv = new EnvelopeClass();
pEnv.UpperLeft = m_pFirstPoint;
pEnv.LowerRight = m_pMovePoint;
IConstructEllipticArc pEllipArc = new EllipticArcClass();
pEllipArc.ConstructEnvelope(pEnv);
m_pEllipticArc = pEllipArc as IEllipticArc;
m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewForeground, null, null);
}
DataEditCommon.g_pAxMapControl.Focus();
}
private void DrawArc(IEllipticArc pEllipArc)
{
if (pEllipArc == null)
{
return;
}
try
{
ISegmentCollection pSegColl;
IPolyline pPolyline;
pSegColl = new PolylineClass();
pSegColl.AddSegment(pEllipArc as ISegment);
pPolyline = pSegColl as IPolyline;
IRgbColor pColor = new RgbColor();
pColor.Red = 0;
pColor.Green = 0;
pColor.Blue = 0;
m_LineSym = new SimpleLineSymbol();
m_LineSym.Color = pColor;
m_LineSym.Width = 1;
m_LineSym.Style = esriSimpleLineStyle.esriSLSSolid;
ISymbol pSym = m_LineSym as ISymbol;
pSym.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
m_pEnvFeedback.Symbol = pSym;
m_hookHelper.ActiveView.ScreenDisplay.StartDrawing(m_hookHelper.ActiveView.ScreenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
m_hookHelper.ActiveView.ScreenDisplay.SetSymbol(pSym);
m_hookHelper.ActiveView.ScreenDisplay.DrawPolyline(pPolyline);
m_hookHelper.ActiveView.ScreenDisplay.FinishDrawing();
}
catch (Exception)
{
return;
}
}
private void AddEllipseElement()
{
IEnvelope pEnvelope = axMapControl1.TrackRectangle();
if (pEnvelope == null)
{
return;
}
IConstructEllipticArc pConstructEllipticArc = new EllipticArcClass(); //建立橢圓的Geometry
pConstructEllipticArc.ConstructEnvelope(pEnvelope);
IEllipticArc pEllipticArc = (IEllipticArc)pConstructEllipticArc;
ISegmentCollection pSegmentCollection = new PolygonClass();
object Missing = Type.Missing;
pSegmentCollection.AddSegment((ISegment)pEllipticArc, ref Missing, ref Missing);
IGeometry pGeometry = pSegmentCollection as IGeometry;
IEllipseElement pEllipseElement = new EllipseElementClass();
IElement pElement = pEllipseElement as IElement;
pElement.Geometry = pGeometry;
AddElement(pElement);
}
private void DrawArc(IEllipticArc pEllipArc)
{
if (pEllipArc == null) return;
try
{
ISegmentCollection pSegColl;
IPolyline pPolyline;
pSegColl = new PolylineClass();
pSegColl.AddSegment(pEllipArc as ISegment);
pPolyline = pSegColl as IPolyline;
IRgbColor pColor = new RgbColor();
pColor.Red = 0;
pColor.Green = 0;
pColor.Blue = 0;
m_LineSym = new SimpleLineSymbol();
m_LineSym.Color = pColor;
m_LineSym.Width = 1;
m_LineSym.Style = esriSimpleLineStyle.esriSLSSolid;
ISymbol pSym = m_LineSym as ISymbol;
pSym.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
m_pEnvFeedback.Symbol = pSym;
m_hookHelper.ActiveView.ScreenDisplay.StartDrawing(m_hookHelper.ActiveView.ScreenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
m_hookHelper.ActiveView.ScreenDisplay.SetSymbol(pSym);
m_hookHelper.ActiveView.ScreenDisplay.DrawPolyline(pPolyline);
m_hookHelper.ActiveView.ScreenDisplay.FinishDrawing();
}
catch (Exception)
{
return;
}
}
public override void OnMouseMove(int Button, int Shift, int X, int Y)
{
m_pMovePoint = m_hookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y);
m_pMovePoint = GIS.GraphicEdit.SnapSetting.getSnapPoint(m_pMovePoint);
if (m_lMouseDownCount == 1)
{
m_bCreated = false;
IEnvelope pEnv = new EnvelopeClass();
pEnv.UpperLeft = m_pFirstPoint;
pEnv.LowerRight = m_pMovePoint;
IConstructEllipticArc pEllipArc = new EllipticArcClass();
pEllipArc.ConstructEnvelope(pEnv);
m_pEllipticArc = pEllipArc as IEllipticArc;
m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewForeground, null, null);
}
DataEditCommon.g_pAxMapControl.Focus();
}
public override void OnKeyDown(int keyCode, int Shift)
{
if (keyCode == (int)Keys.Escape)
{
m_pFeedback = null;
m_pEllipticArc = null;
m_pEnvFeedback = null;
m_lMouseDownCount = 0;
m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
}