Workshop on OSHW

Post on 07-Jul-2015

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Presentation for FOSS4G-Asia 2014, Bangkok

Transcript of Workshop on OSHW

Measuring coffee holding capacity in office

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DATA RECORDS FROM SENSORS

QGIS

We will see how to read CSV files from the Weather Station in QGIS

Python-OGR

This section shows how to code in Python-OGR the import and conversion of CSV point data into a shapefile

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GRASS

To import in GRASS, first create a “LL”(Geographical, Lat/Lon) Location from scratch. Then follow the next slide.

Import in GRASS & export to shapefile

pyGRASS

This pyGRASS code is running from within a GRASS session, though it can be run externally too. It is following the same procedure than in GRASS command line, but adds more scripting control.

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#Run this script in the terminal as:#python oshw_pygrass.py

#For debugging, run as:#python -i oshw_pygrass.py

#PURPOSE#Import a CSV [X,Y,Z,DATA] file in GRASS GIS#Also export to shp out.

Set variables

Libraries

Set message reporting to GUI

Read CSV file from CLI argument

Import in GRASS & create a shapefile

Libraries

Libraries, more

Process Class initialisation

I/O

Khob Khun Na Krub