General Tools - Cartographic Transformation - Raster

 

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General Tools - Cartographic Transformation - Raster

 

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Purpose

 

Geocoded images and Digital Elevation Models may be transformed from one cartographic reference system to another; the pixel spatial resolution can be modified as well.

 

Technical Note

 

Complex data type is not admitted.

 

If the input "Reference file" is entered, its cartographic projection and grid size are used for the file transformation. If the input "Reference file" is not used, the output cartographic projection and grid size must be specified.  

 

Input Files

 

Input Reference File

Input file to be used as transformation reference. The output transformed data will have same corner points, same cartographic system and same grid size of the reference file.

 

Input file list

Input file name(s) of the data to be transformed. This file is mandatory.

 

DEM/Cartographic System

 

Output Projection

In case the Reference file is not used, the following parameters are compulsory to define the Cartographic System:  

 

State

Definition of the country or general projection systems.

 

Projection

Definition of the projection system of the selected State. In case that a general projection system is selected in State, the Projection is automatically set.

 

Ellipsoid

Definition of the ellipsoid. This is chosen according to the selected State and Projection.

 

Hemisphere

Definition of the hemisphere. This is chosen according to the selected State and Projection.

 

Zone

Definition of the zone. This is chosen according to the selected State and Projection.

 

Datum Shift Parameters

Definition of the datum shift parameters. These are chosen according to the selected State and Projection.

 

Cartographic Parameters

The reference parameters for some projection systems (e.g. Stereographic, Polar Stereographic, Gnomonic, Mercator, Miller, Albers, etc.) can be set.

 

Parameters - Principal Parameters

 

Type

One of the following file types can be selected for the cartographic transformation:

 

Image

All raster data except Digital Elevation Model.

 

DEM

Digital Elevation Model. This should be referred to the ellipsoid.

 

Activate Coordinates Selection

By setting this flag it is possible to specify a spatial region for the output file generation (co-ordinates are referred to the output cartographic reference system).

 

-West

The Westernmost cartographic co-ordinate.

 

-East

The Easternmost cartographic co-ordinate.

 

-North

The Northernmost cartographic co-ordinate.

 

-South

The Southernmost cartographic co-ordinate.

 

X dimension

The grid size of the output data  in Easting (X) must be defined only if the Reference file is not used; the default unit of measure is meters.

Note that - for the Geographic projection - if values higher than 0.2 are entered they will be considered as metric units and then automatically, and roughly, converted from meters to degrees; if values lower than 0.2 are entered they will be considered as degree and used as such without any conversion.

 

X dimension

The grid size of the output data  in Northing (Y) must be defined only if the Reference file is not used; the default unit of measure is meters.

Note that - for the Geographic projection - if values higher than 0.2 are entered they will be considered as metric units and then automatically, and roughly, converted from meters to degrees; if values lower than 0.2 are entered they will be considered as degree and used as such without any conversion.

 

Parameters - Global

 

It brings to the general section of the Preferences parameters. Any modified value will be used and stored for further processing sessions.

 

Parameters - Other Parameters

 

It brings to the general section of the Preferences parameters. Any modified value will be used and stored for further processing sessions.

 

Output Files

 

Output file list

Output file name(s) of the transformed data. This file is mandatory.

 

_rsp        

Transformed data and associated header files (.sml, .hdr).

 

_rsp_par.sml        

Xml file containing temporary processing parameters.

 

Details specific to the Units of Measure and Nomenclature of the output products can be found in the Data Format section.

 

General Functions

 

Exec

The processing step is executed.

 

Store Batch        

The processing step is stored in the batch list. The Batch Browser button allows to load the batch processing list.

 

Close        

The window will be closed.

 

Help

Specific help document section.

 

 

Specific Function(s)

 

None.

 

See Also

 

Task, SARscapeBatch object, SARscapeBatch script example

 

References

 

None.