ISensorXform Interface

Provides access to members that control sensor specific geodata transform.

Members

Name Description
Read/write property ConstantZ The constant Z value in meters.
Read/write property CorrectGeoid Indicates if Geoid correction is needed.
Read/write property DEM The Digital Elevation Model (DEM).
Read/write property RequireDEM Indicates if DEM is required for applying this transform.
Read/write property ZFactor The conversion factor from DEM Z unit to meters.
Read/write property ZOffset The Z offset in meters applied to DEM.

ISensorXform.ConstantZ Property

The constant Z value in meters.

Public Property ConstantZ As Double
public double ConstantZ {get; set;}

Remarks

This property can be used to set a constant elevation across the image when DEM method is not used.

ISensorXform.CorrectGeoid Property

Indicates if Geoid correction is needed.

Public Property CorrectGeoid As Boolean
public bool CorrectGeoid {get; set;}

Remarks

If the property is set to true, the DEM used in orthorectification will be corrected to use the true elevation.

ISensorXform.DEM Property

The Digital Elevation Model (DEM).

Public Property DEM As IRaster
public IRaster DEM {get; set;}

ISensorXform.RequireDEM Property

Indicates if DEM is required for applying this transform.

Public Property RequireDEM As Boolean
public bool RequireDEM {get; set;}

ISensorXform.ZFactor Property

The conversion factor from DEM Z unit to meters.

Public Property ZFactor As Double
public double ZFactor {get; set;}

Remarks

A factor that converts the unit of the DEM to meter

ISensorXform.ZOffset Property

The Z offset in meters applied to DEM.

Public Property ZOffset As Double
public double ZOffset {get; set;}

Remarks

If the DEM data used is not based on sea level, this property can be used to do the adjustment.

Classes that implement ISensorXform

Classes Description
ApproximationXform A transformation that approximates other transformations.
CompositeXform A composite geodata transform collection class.
EpipolarXform A transformation that map native image to epipolar image.
Formosat2Xform A Formosat2 transform class.
FrameXform A standard frame camera model transformation class.
RPCXform A Rational Polynomial Coefficient (RPC) transform class.
SPOT5Xform A SPOT5 1A transform class.

Remarks

The ISensorXform interface is used to set the elevation information for RPCXform object to create orthorectified image.

You can specify the elevation using a DEM or a constant value that represent an average elevation.

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