GXFLT class¶

class GXFLT(handle=0)[source]¶

GXFLT class.

The GXFLT class allows the application of user-defined convolution filters to data in an OASIS database

__init__(handle=0)[source]¶: Initialize self. See help(type(self)) for accurate signature.

classmethod create(input)[source]¶

Create a filter from a comma/space delimited string.

Parameters: input (str) – Filter string
Returns: GXFLT Object
Return type: int

New in version 5.0.

License: Geosoft End-User License

Note: Terminates process if filter not found. Sample Fraser Filter string:

“-1,-1,1,1”

is_null()[source]¶

Check if this is a null (undefined) instance

Returns: True if this is a null (undefined) instance, False otherwise.
Return type: bool

classmethod load(file)[source]¶

Load and return handle to a convolution filter.

Parameters: file (str) – Name of the filter File
Returns: GXFLT Object
Return type: int

New in version 5.0.

License: Geosoft End-User License

Note: Terminates process if filter not found. A filter file is an ASCII file that contains filter coefficients, which are simply mumbers. There can be one coefficient to a line. Blank lines and comment lines are skipped. Comment lines beginn with a forward slash character in column 1. Following is an example Fraser Filter file:

/———————- / Fraser Filter /———————- -1 -1 1 1

classmethod null()[source]¶

A null (undefined) instance of GXFLT

Returns: A null GXFLT
Return type: GXFLT