Python gyz Examples

Example #1

File: test_gravmag_tesseroid.py Project: KICIOLLO/fatiando

def test_gyz():
    "gravmag.tesseroid.gyz with optimal discretize against half a shell"
    lons = np.zeros_like(heights)
    lats = lons
    tess = tesseroid.gyz(lons, lats, heights, shellmodel)
    diff = np.abs(tess)
    assert np.all(diff <= 10 ** (-10)), 'diff: %s' % (str(diff))

Example #2

File: gravmag_grav_tesseroid.py Project: ajayws/fatiando

# Create the computation grid
area = (-80, -30, -40, 10)
shape = (100, 100)
lons, lats, heights = gridder.regular(area, shape, z=250000)

start = time.time()
fields = [
    tesseroid.potential(lons, lats, heights, model),
    tesseroid.gx(lons, lats, heights, model),
    tesseroid.gy(lons, lats, heights, model),
    tesseroid.gz(lons, lats, heights, model),
    tesseroid.gxx(lons, lats, heights, model),
    tesseroid.gxy(lons, lats, heights, model),
    tesseroid.gxz(lons, lats, heights, model),
    tesseroid.gyy(lons, lats, heights, model),
    tesseroid.gyz(lons, lats, heights, model),
    tesseroid.gzz(lons, lats, heights, model)]
print "Time it took: %s" % (utils.sec2hms(time.time() - start))

titles = ['potential', 'gx', 'gy', 'gz',
          'gxx', 'gxy', 'gxz', 'gyy', 'gyz', 'gzz']
bm = mpl.basemap(area, 'merc')
mpl.figure()
mpl.title(titles[0])
mpl.contourf(lons, lats, fields[0], shape, 40, basemap=bm)
bm.drawcoastlines()
mpl.colorbar()
mpl.figure()
for i, field in enumerate(fields[1:4]):
    mpl.subplot(1, 3, i + 1)
    mpl.title(titles[i + 1])

Example #3

File: gravmag_grav_tesseroid.py Project: Claudiadtx/Pelotas

# Create the computation grid
area = (-80, -30, -40, 10)
shape = (100, 100)
lons, lats, heights = gridder.regular(area, shape, z=250000)

start = time.time()
fields = [
    tesseroid.potential(lons, lats, heights, model),
    tesseroid.gx(lons, lats, heights, model),
    tesseroid.gy(lons, lats, heights, model),
    tesseroid.gz(lons, lats, heights, model),
    tesseroid.gxx(lons, lats, heights, model),
    tesseroid.gxy(lons, lats, heights, model),
    tesseroid.gxz(lons, lats, heights, model),
    tesseroid.gyy(lons, lats, heights, model),
    tesseroid.gyz(lons, lats, heights, model),
    tesseroid.gzz(lons, lats, heights, model)
]
print "Time it took: %s" % (utils.sec2hms(time.time() - start))

titles = [
    'potential', 'gx', 'gy', 'gz', 'gxx', 'gxy', 'gxz', 'gyy', 'gyz', 'gzz'
]
bm = mpl.basemap(area, 'merc')
mpl.figure()
mpl.title(titles[0])
mpl.contourf(lons, lats, fields[0], shape, 40, basemap=bm)
bm.drawcoastlines()
mpl.colorbar()
mpl.figure()
for i, field in enumerate(fields[1:4]):