GXFLT class¶

class geosoft.gx.GXFLT¶

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

static create((GXContext)ctx, (str)arg1) → GXFLT:¶

create a filter from a comma/space delimited string.

Parameters:	ctx (`geosoft.gx.GXContext`) – The GX execution context arg1 (str) – Filter string
Returns:	FLT Object
Return type:	`geosoft.gx.GXFLT`

New in version 5.0.0.

Note:

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

      "-1,-1,1,1"

is_null() → bool¶

Check if the instance of geosoft.gx.GXFLT is null (undefined)

Returns:	True if this is a null instance of `geosoft.gx.GXFLT`, False otherwise.
Return type:	bool`

static load((GXContext)ctx, (str)arg1) → GXFLT:¶

Load and return handle to a convolution filter.

Parameters:	ctx (`geosoft.gx.GXContext`) – The GX execution context arg1 (str) – Name of the filter File
Returns:	FLT Object
Return type:	`geosoft.gx.GXFLT`

New in version 5.0.0.

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

static null() → GXFLT¶

A null (undefined) instance of geosoft.gx.GXFLT

Returns:	A null `geosoft.gx.GXFLT`
Return type:	`geosoft.gx.GXFLT`