Visualising ODB in Magics
There are several ways on visualisating ODB data in Magics.
- use the ODB Magics objects. This allows Magics to read a odb file and extract some columns for geographical plots or graph.
- In python, it also possible to use odb_api packages to create a numpy array and pass the values in memeoty to Magics. magics is then able to perform symbol plotting on a geographical area, time series, etc ..
This page will present examples of these different plottings, and will offer skeletons of python programs.
Using an ODB file and create a geographical map
In this example, we have downloaded some ODB data from Mars.
The mars request looks like:
RETRIEVE,
CLASS = E2,
TYPE = OFB,
STREAM = OPER,
EXPVER = 1607,
REPRES = BU,
REPORTYPE = 16005,
OBSTYPE = 1,
DATE = 20100101,
TIME = 0,
DOMAIN = G,
TARGET = "data.odb",
FILTER = "select lat@hdr, lon@hdr, obsvalue@body where (source='ISPDv2.2') and (varno=110)",
DUPLICATES = KEEP