def test_graph2(self):
"""
http://data.geus.dk/JupiterWWW/borerapport.jsp?atlasblad=0&loebenr=0&bogstav=&dgunr=230.++205&submit=Vis+boringsdata
https://www.linuxquestions.org/questions/programming-9/python-matplotlib-postgresql-xaxis-as-dates-4175445040/
"""
from jupiter_db import JupiterDb
import psycopg2
from matplotlib import pyplot as plot, dates
db = JupiterDb()
params = db.get_dbparams()
conn = psycopg2.connect(**params) #psycopg2.connect('dbname=foo user=bar')
cur = conn.cursor()
cur.execute("""
SELECT
amount,
sampledate
FROM
jupiter.mstmvw_chemanalysis
WHERE
long_text ilike 'nitrat' AND
boreholeno = '230. 205'
""")
data = cur.fetchall()
cur.close()
conn.close()
ms, dt = zip(*data)
dt = dates.date2num(dt)
plot.plot_date(dt, ms)
plot.xticks(rotation='vertical')
plot.show()
return True
def test_graph1(self):
"""
http://data.geus.dk/JupiterWWW/borerapport.jsp?atlasblad=0&loebenr=0&bogstav=&dgunr=230.++205&submit=Vis+boringsdata
https://www.linuxquestions.org/questions/programming-9/python-matplotlib-postgresql-xaxis-as-dates-4175445040/
TODO: Why is test_graph1 faster than test_graph2 ?
"""
from jupiter_db import JupiterDb
import psycopg2
from matplotlib import pyplot as plot, dates
db = JupiterDb()
params = db.get_dbparams()
conn = psycopg2.connect(
**params) #psycopg2.connect('dbname=foo user=bar')
cur = conn.cursor()
cur.execute("""
SELECT
ca.amount,
cs.sampledate
FROM jupiter.borehole b
--INNER JOIN jupiter.intake i USING (boreholeno)
INNER JOIN jupiter.grwchemsample cs USING (boreholeno)
INNER JOIN jupiter.grwchemanalysis ca ON ca.sampleid = cs.sampleid
INNER JOIN jupiter.compoundlist cl ON ca.compoundno = cl.compoundno
--INNER JOIN kort.lolland l ON st_dwithin(b.geom, l.geom, 0)
WHERE cl.long_text ilike 'nitrat' AND b.boreholeno = '230. 205'
ORDER BY cs.sampledate
""")
data = cur.fetchall()
cur.close()
conn.close()
ms, dt = zip(*data)
dt = dates.date2num(dt)
plot.plot_date(dt, ms)
plot.xticks(rotation='vertical')
plot.show()
return True