public static IPolygon MakePolygonFromRing(IRing pRing, bool blMakeAreaZ /*使面积为正*/)
{
if (pRing == null || pRing.IsEmpty || pRing.IsClosed == false)
{
return(null);
}
IPolygon pPolygon = new PolygonClass();
IGeometryCollection pGeometryCollection = pPolygon as IGeometryCollection;
object pBObj = Type.Missing;
object pAObj = Type.Missing;
IGeometry pGeometry = pRing as IGeometry;
pGeometryCollection.AddGeometry(pGeometry, ref pBObj, ref pAObj);
if (blMakeAreaZ == false)
{
return(pPolygon);
}
IArea pArea = pPolygon as IArea;
if (pArea.Area >= 0)
{
return(pPolygon);
}
ESRI.ArcGIS.esriSystem.IClone pClone = pRing as ESRI.ArcGIS.esriSystem.IClone;
IRing pNewRing = pClone.Clone() as IRing;
pNewRing.ReverseOrientation();
pGeometry = pNewRing as IGeometry;
pGeometryCollection.AddGeometry(pGeometry, ref pBObj, ref pAObj);
return(pPolygon);
}
void ESRI.ArcGIS.esriSystem.IClone.Assign(ESRI.ArcGIS.esriSystem.IClone src)
{
GIS.IGasPressureSymbol srcLogoSym = null;
ESRI.ArcGIS.Display.IMarkerSymbol srcMarkerSym = null;
ESRI.ArcGIS.Display.IMarkerSymbol recMarkerSym = null;
ESRI.ArcGIS.Display.ISymbol srcSym = null;
ESRI.ArcGIS.Display.ISymbol recSym = null;
ESRI.ArcGIS.Display.ISymbolRotation srcRotSym = null;
ESRI.ArcGIS.Display.ISymbolRotation recRotSym = null;
ESRI.ArcGIS.Display.IMapLevel srcMapLev = null;
ESRI.ArcGIS.Display.IMapLevel recMapLev = null;
if (src != null)
{
if (src is GIS.IGasPressureSymbol)
{
// Assign custom interface properties of Source to Reciever.
// Color objects are returned from these properties by value.
srcLogoSym = src as IGasPressureSymbol;
m_colorBorder = srcLogoSym.ColorBorder;
m_colorLeft = srcLogoSym.ColorLeft;
m_colorRight = srcLogoSym.ColorRight;
m_colorTop = srcLogoSym.ColorTop;
// Assign IMarkerSymbol interface properties of Source to Reciever, but
// dont need to set Color because this is set in ColorTop.
// We know that a Logo markerSymbol implements IMarkerSymbol.
srcMarkerSym = src as IMarkerSymbol;
recMarkerSym = this;
recMarkerSym.Angle = srcMarkerSym.Angle;
recMarkerSym.Size = srcMarkerSym.Size;
recMarkerSym.XOffset = srcMarkerSym.XOffset;
recMarkerSym.YOffset = srcMarkerSym.YOffset;
// Assign ISymbol interface properties of Source to Reciever.
// We know that a Logo markerSymbol implements ISymbol.
srcSym = src as ISymbol;
recSym = this;
recSym.ROP2 = srcSym.ROP2;
// Assign ISymbolRotation interface properties of Source to Reciever.
// We know that a Logo markerSymbol implements ISymbolRotation.
srcRotSym = src as ISymbolRotation;
recRotSym = this;
recRotSym.RotateWithTransform = srcRotSym.RotateWithTransform;
// Assign IMapLevel interface properties of Source to Reciever.
// We know that a Logo markerSymbol implements IMapLevel.
srcMapLev = src as IMapLevel;
recMapLev = this;
recMapLev.MapLevel = srcMapLev.MapLevel;
// Also implements IMarkerMask, but this interface has no properties, only
// a method, and therefore we dont have to assign anything for IMarkerMask.
// Also implements IDiplayName, but this interface only has one property,
// which is read-only, so we dont set anything for IDisplayName either.
}
}
}
ESRI.ArcGIS.esriSystem.IClone ESRI.ArcGIS.esriSystem.IClone.Clone()
{
// Simplest way to implement the Clone function is to make use of the IClone Assign
// method. Create a new LogoMarkerSymbol and assign to it the properties of the
// current class, then pass back this new class, which is then a copy of the current class.
GIS.IGasPressureSymbol newLogo = null;
ESRI.ArcGIS.esriSystem.IClone clone = null;
newLogo = new GIS.GasPressureSymbol();
clone = newLogo as IClone;
clone.Assign(this);
return clone;
}
bool ESRI.ArcGIS.esriSystem.IClone.IsIdentical(ESRI.ArcGIS.esriSystem.IClone other)
{
bool tempIClone_IsIdentical = false;
GIS.IGasPressureSymbol sym = null;
if (other != null)
{
if (other is IGasPressureSymbol)
{
sym = (IGasPressureSymbol)other;
tempIClone_IsIdentical = (sym == this);
}
}
return tempIClone_IsIdentical;
}
bool ESRI.ArcGIS.esriSystem.IClone.IsEqual(ESRI.ArcGIS.esriSystem.IClone other)
{
bool tempIClone_IsEqual = false;
GIS.IGasPressureSymbol srcLogoSym = null;
GIS.IGasPressureSymbol pRecLogoSym = null;
ESRI.ArcGIS.Display.IMarkerSymbol srcMarkerSym = null;
ESRI.ArcGIS.Display.IMarkerSymbol recMarkerSym = null;
ESRI.ArcGIS.Display.ISymbol srcSym = null;
ESRI.ArcGIS.Display.ISymbol recSym = null;
ESRI.ArcGIS.Display.IDisplayName srcDispName = null;
ESRI.ArcGIS.Display.IDisplayName recDispName = null;
ESRI.ArcGIS.Display.ISymbolRotation srcSymRot = null;
ESRI.ArcGIS.Display.ISymbolRotation recSymRot = null;
ESRI.ArcGIS.Display.IMapLevel srcMapLev = null;
ESRI.ArcGIS.Display.IMapLevel recMapLev = null;
if (other != null)
{
if (other is GIS.IGasPressureSymbol)
{
// Check for equality on default interface.
srcLogoSym = other as IGasPressureSymbol;
pRecLogoSym = this;
tempIClone_IsEqual = tempIClone_IsEqual & (System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(pRecLogoSym.ColorBorder.RGB)).Equals(System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(srcLogoSym.ColorBorder.RGB))));
tempIClone_IsEqual = tempIClone_IsEqual & (System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(pRecLogoSym.ColorLeft.RGB)).Equals(System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(srcLogoSym.ColorLeft.RGB))));
tempIClone_IsEqual = tempIClone_IsEqual & (System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(pRecLogoSym.ColorRight.RGB)).Equals(System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(srcLogoSym.ColorRight.RGB))));
tempIClone_IsEqual = tempIClone_IsEqual & (System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(pRecLogoSym.ColorTop.RGB)).Equals(System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(srcLogoSym.ColorTop.RGB))));
// Check for equality on IMarkerSymbol interface.
// We know that a LogoMarkerSymbol implements IMarkerSymbol.
srcMarkerSym = other as IMarkerSymbol;
recMarkerSym = this;
tempIClone_IsEqual = tempIClone_IsEqual & (recMarkerSym.Angle == srcMarkerSym.Angle);
tempIClone_IsEqual = tempIClone_IsEqual & (System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(recMarkerSym.Color.RGB)).Equals(System.Drawing.ColorTranslator.FromOle(System.Convert.ToInt32(srcMarkerSym.Color.RGB))));
tempIClone_IsEqual = tempIClone_IsEqual & (recMarkerSym.Size == srcMarkerSym.Size);
tempIClone_IsEqual = tempIClone_IsEqual & (recMarkerSym.XOffset == srcMarkerSym.XOffset);
tempIClone_IsEqual = tempIClone_IsEqual & (recMarkerSym.YOffset == srcMarkerSym.YOffset);
// Check for equality on ISymbol interface.
// We know that a Logo markerSymbol implements ISymbol.
srcSym = other as ISymbol;
recSym = this;
tempIClone_IsEqual = tempIClone_IsEqual & (recSym.ROP2 == srcSym.ROP2);
// Check for equality on IDisplayName interface.
// We know that a Logo markerSymbol implements IDisplayName.
srcDispName = other as IDisplayName;
recDispName = this;
tempIClone_IsEqual = tempIClone_IsEqual & (recDispName.NameString == srcDispName.NameString);
// Check for equality on ISymbolRotation
// We know that a Logo markerSymbol implements IDisplayName.
srcSymRot = other as ISymbolRotation;
recSymRot = this;
tempIClone_IsEqual = tempIClone_IsEqual & (recSymRot.RotateWithTransform == srcSymRot.RotateWithTransform);
// Check for equality on IMapLevel
// We know that a Logo markerSymbol implements IMapLevel.
srcMapLev = other as IMapLevel;
recMapLev = this;
tempIClone_IsEqual = tempIClone_IsEqual & (recMapLev.MapLevel == srcMapLev.MapLevel);
// Also implements IMarkerMask, but IMarkerMask has no properties to check.
}
}
return tempIClone_IsEqual;
}