Python script qltStripDiff

Table of Contents

• Aim of module
• General description
• Parameter description
• Examples

See also

python.workflows.qltStripDiff

Aim of module

Derives relative strip difference maps (color coded raster maps) for a set of overlapping strip pairs.

General description

The results are provided per strip pair and as a mosaic (entire project area).

See also

Script documentation

The following table contains a list of all involved modules and their default storage location:

qltStripDiff

OPALS Module	Default Directory	Comments
Module Import	.\import	ODM files
Module Bounds	.\bounds	boundary files, only if no pairs specified
Module Overlap	.\overlap	list of overlapping pairs, only if no pairs specified
Module Grid	.\grid	strip-wise DSMs, additional features: sigma and excenter
Module Algebra	.\grid	grid masks
Module Algebra	.\grid	masked grid files
Module Algebra	.\grid	masked/unmasked mosaic grid files
Module Diff	.\diff	difference models (strip-wise masked and unmasked)
Module Algebra	.\diff	diff model mosaic (masked and unmasked)
Module ZColor	.\qltStripDiff	color coded difference maps (masked and unmasked)

Parameter description

-mosaic create mosaics

Type : Boolean
Remark : optional, default: True

possible input	evaluates to
1, true, yes, Boolean(True), True	Boolean(True)
0, false, no, Boolean(False), False	Boolean(False)

-mask create grid masks (sigma0, eccentricity)

Type : String
Remark : optional, default: True

-slopeLimits slope limits in degrees

Type : Floating-point number
Remark : optional, default: []
Description: optional slope limits (in degrees) for slope classes based analyses. e.g. 20 30 will result in three classes: <20, >=20 to <30, >=30

-recalcMaskFiles if True, masked outputfiles will be recalculated.

Type : Boolean
Remark : optional, default: True
Description: This parameter could be used if a new mask is applied and only the masked outputfilesshould be recalculated.

possible input	evaluates to
1, true, yes, Boolean(True), True	Boolean(True)
0, false, no, Boolean(False), False	Boolean(False)

-flatmode for support of opalsQuality flatmode

Type : Boolean
Remark : optional, default: False

possible input	evaluates to
1, true, yes, Boolean(True), True	Boolean(True)
0, false, no, Boolean(False), False	Boolean(False)

Common Package/Script Options

Settings concerning the general options for (package) scripts.

-infile input text file, directory or strip file

Type : Path
Remark : mandatory
Description: Test

-outfile output directory or settings file (.txt)

Type : Path
Remark : optional
Description: Specifies the directory where the final results are stored. If not specified, the results are created in the current working directory.

-tempdir temporary directory

Type : Path
Remark : optional, default: current directory
Description: Specifies the directory where all intermediate results are stored. If not specified, a TEMP subdirectory is created in the current working directory. Additional subdirectories (one per involved module) are created.

-cfg Path to configuration file

Type : Path
Remark : optional, default: $OPALS_ROOT/cfg/qltStripDiff.cfg
Description: The name of a configuration file containing all relevant calculation parameters is expected. If not specified, the default cfg files as provided by the OPALS distribution are used.

-projectDir project directory

Type : Path
Remark : optional, default: current directory
Description: The default project directory is the current working directory, but can be easily changed by this parameter. All path parameters, if not specified as absolute paths, are interpreted relative to the project directory.

-skipIfExists skip processing if result already exists

Type : Boolean
Remark : optional, default: True
Description: Skip processing if result already exists. In order to re-run current script it is useful to repeat the processing only if the respective output does not already exist. This allows for incremental processing of large projects.

possible input	evaluates to
1, true, yes, Boolean(True), True	Boolean(True)
0, false, no, Boolean(False), False	Boolean(False)

-distribute determine how many local processes should be used

Type : String
Remark : optional
Description: according to the number chosen as the value, independent processes are being started to parallelise (parts of) the program and therefore enhance the runtime.

Logging Options

Settings concerning the verbosity level of logging.

-fileLogLevel Log level in the logfile

Type : LogLevel
Remark : optional, default: info

-screenLogLevel Log level on screen

Type : LogLevel
Remark : optional, default: info

-logger Logger

Type : Logger
Remark : optional
Description: Logger is usually provided by the opals framework.The user may provide their own logger object, but it has to function in the same way as the opals Logger.

Examples

To be written.