IGeoDatabaseBridge2.GetLineOfSight

IGeoDatabaseBridge2.GetLineOfSight Method

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

[Visual Basic 6.0]
Sub GetLineOfSight(
    ByVal pSurface As ISurface, _
    ByVal pObserver As IPoint, _
    ByVal pTarget As IPoint, _
    ppObstruction As IPoint, _
    ppVisibleLines As IPolyline, _
    ppInvisibleLines As IPolyline, _
    pbIsVisible As Boolean, _
    ByVal bApplyCurvature As Boolean, _
    ByVal bApplyRefraction As Boolean, _
    [pRefractionFactor As Variant] _
)

[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.

[Java]
public void getLineOfSight (
    ISurface pSurface,
    IPoint pObserver,
    IPoint pTarget,
    IPoint ppObstruction,
    IPolyline ppVisibleLines,
    IPolyline ppInvisibleLines,
    Boolean pbIsVisible,
    Boolean bApplyCurvature,
    Boolean bApplyRefraction,
    Object pRefractionFactor
)
throws
    IOException,
    AutomationException

[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