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IGeoDatabaseBridge2.GetLineOfSight Method (ArcObjects .NET 10.5 SDK)
ArcObjects Library Reference (GeoDatabase)  

IGeoDatabaseBridge2.GetLineOfSight Method

Returns a line-of-site indicator interpolated from the TIN based on an input polyline.

[Visual Basic .NET]
Public Sub GetLineOfSight ( _
    ByVal pSurface As ISurface, _
    ByVal pObserver As IPoint, _
    ByVal pTarget As IPoint, _
    ByRef ppObstruction As IPoint, _
    ByRef ppVisibleLines As IPolyline, _
    ByRef ppInvisibleLines As IPolyline, _
    ByRef pbIsVisible As Boolean, _
    ByVal bApplyCurvature As Boolean, _
    ByVal bApplyRefraction As Boolean, _
    [ByRef pRefractionFactor As Object] _
)
[C#]
public void GetLineOfSight (
    ISurface pSurface,
    IPoint pObserver,
    IPoint pTarget,
    ref IPoint ppObstruction,
    ref IPolyline ppVisibleLines,
    ref IPolyline ppInvisibleLines,
    ref bool pbIsVisible,
    ref bool bApplyCurvature,
    ref bool bApplyRefraction,
    ref object pRefractionFactor
);
[C#]

Optional Values

pRefractionFactor   To indicate that this parameter is undefined, first define a variable object Missing=Type.Missing; then pass this in as ref Missing.
[C++]
HRESULT GetLineOfSight(
  ISurface* pSurface,
  IPoint* pObserver,
  IPoint* pTarget,
  IPoint** ppObstruction,
  IPolyline** ppVisibleLines,
  IPolyline** ppInvisibleLines,
  VARIANT_BOOL* pbIsVisible,
  VARIANT_BOOL bApplyCurvature,
  VARIANT_BOOL bApplyRefraction,
  VARIANT* pRefractionFactor
);
[C++]

Parameters pSurface [in]
pSurface is a parameter of type ISurface pObserver [in]
pObserver is a parameter of type IPoint pTarget [in]
pTarget is a parameter of type IPoint ppObstruction [out]
ppObstruction is a parameter of type IPoint ppVisibleLines [out]
ppVisibleLines is a parameter of type IPolyline ppInvisibleLines [out]
ppInvisibleLines is a parameter of type IPolyline pbIsVisible [out] pbIsVisible is a parameter of type VARIANT_BOOL bApplyCurvature [in] bApplyCurvature is a parameter of type VARIANT_BOOL bApplyRefraction [in] bApplyRefraction is a parameter of type VARIANT_BOOL pRefractionFactor [optional] pRefractionFactor is a parameter of type VARIANT
To indicate this parameter is undefined pass a reference to a VARIANT with type VT_ERROR and scode value of DISP_E_PARAMNOTFOUND.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

See Also

IGeoDatabaseBridge2 Interface