Hi Volker, thank you for your interest and the valuable help.
About xml file, I'm referring to files as "accumulated.cost.spm"
attached this mail, generated from "Accumulated Cost Anisotropic" module
GUI.
Although now I've understand your opinion and I'm agree with you, my
original idea was to automaticaly generate a GUI in QGIS (using pyQT)
from something like xml file for capture parameters and past to a python
script with saga_cmd (e.g. os.system("saga_cmd "). In that way I hoped
to generated "on the fly" GUI and avoid build all GUI for each saga
module in QGIS. With the GUI I can past all parametere from GUI to
python script.
Actually, the use of saga_api is more robust way for programming plugin
even If it could be more difficult for installation and configuration.
My idea is build a plugin like Gdal-Tool
(https://trac.osgeo.org/qgis/browser/trunk/qgis/python/plugins/GdalTools?rev=13639).
Thanks
Gianluca
Hi,
I don't know of a "save" button which outputs XML description - from
the GUI you can create batch/html output, do you refer to that?
But I would not recommend to trust on this, I think it is a bad idea
to "hardwire" your plugin - every change in the module parameters
naming or even new parameters would break your implementation of a
SAGA module. For example, the RSAGA interface already suffered from
such an implementation.
I think you should use the SAGA python API to dynamically parse the
parameters of each module - this would guarantee that your plugin
would work with every SAGA build used.
I am not familiar with QGIS and its plugin design, but from all posts
regarding this topic I assume that you like to call a saga_cmd
subprocess from the GUI. I would like to support the writing of some
python code that would dynamically parse available SAGA modules and
their parameters in order to build up module dialogs in QGIS. Could
you point me to some sources which show the idea/implementation of
QGIS plugins? I'm not a python programmer, but I use it for scripting,
so maybe I could be of some help.
Best regards,
Volker
<?xml version="1.0" encoding="utf-8"?>
<PARAMETERS name="Accumulated Cost (Anisotropic)">
<OPTION type="grid_system" id="PARAMETERS_GRID_SYSTEM" name="Grid system">
<CELLSIZE>-1</CELLSIZE>
<XMIN>0</XMIN>
<XMAX>0</XMAX>
<YMIN>0</YMIN>
<YMAX>0</YMAX>
</OPTION>
<DATA type="grid" id="COST" name="Cost Grid">NOT SET</DATA>
<DATA type="grid" id="DIRECTION" name="Direction of max cost">NOT SET</DATA>
<DATA type="grid" id="POINTS" name="Destination Points">NOT SET</DATA>
<DATA type="grid" id="ACCCOST" name="Accumulated Cost">NOT SET</DATA>
<OPTION type="double" id="K" name="k factor">2.000000</OPTION>
<OPTION type="double" id="THRESHOLD" name="Threshold for different route">0.000000</OPTION>
</PARAMETERS>
_______________________________________________
Qgis-developer mailing list
[email protected]
http://lists.osgeo.org/mailman/listinfo/qgis-developer
