On 17/04/18 16:21, Nikos Alexandris wrote:
* Moritz Lennert <mlenn...@club.worldonline.be> [2018-04-17 15:56:10 +0200]:
On 17/04/18 15:31, Nikos Alexandris wrote:
Dear developers,
is there a way to set a string as the content of a default "answer" for
the G_OPT_F_INPUT option? I am trying to identify potential cases in the
grass-addons repository, but I am not sure I have seen something related.
The G_OPT_F_INPUT offers a field to enter a filename. The default
"answer", for the parser, will be the name of the file.
In addition, a field to "enter values directly" is created. The
description of this field is: "Enter file content directly instead of
specifying a file. Temporary file will be automatically created."
Can this field be filled with a pre-defined content?
The use case is to expose, to the user, a pre-defined set of
reclassification rules. These will help a beginner to get started,
understand easier and modify rules as he sees fit.
Use the 'answer' parameter:
#% answer : myfilename
Moritz
It works: it loads the content of an external file. Are we forced to use
external files in such a case? Which means an extra file has to be
shipped with the source code.
Can we not use an in-script hardcoded string for example?
Sure you can.
Use write_command() with stdin=text that you wish to feed into
r.reclass. You can find several examples of its usage in existing scripts.
Moritz
P.S. Thanks to MarkusM for raising the point about file path difficulties...
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