Modo de ...
This post is a quick example on how to read geotiff images with GDAL and plot them with Cartopy.
The image, and most of the code, is from Kelsey Jordahl original notebook. The main difference is that I compressed the geotiff with:
gdal_translate -co "TILED=YES" -co "COMPRESS=JPEG" manhattan ...
Sábado passado foi o Open Data Day e, por pura sorte, acabei tropeçando no projeto dados-abertos-cd do Calango H4cker Clube de Brasília.
O projeto busca, em suas próprias palavras,
Soluções para acesso, exploração e consumo dos Dados Abertos
disponibilizados pela Câmara dos Deputados do Brasil.
Vamos brincar com os dados ...
Right after I test ttide_py a friend told me about the python version of the Unified Tidal Analysis and Prediction (UTide) written by Wesley Bowman.
UTide seems to be a significant advance over t_tide. So let's try the python version! I will use the same data from my previous ...
Matlab's compass is a very handy function to plot arrows emanating from an origin. As far as I know matplotlib does not have an equivalent function. However, matplotlib is so versatile that we can build a compass like function very quickly.
We will need a function to convert from ...
First we will use cartopy's shapereader to download (and cache) states shapefile with 50 meters resolution from the NaturalEarth.
from cartopy.io import shapereader
kw = dict(resolution='50m', category='cultural',
name='admin_1_states_provinces')
states_shp = shapereader.natural_earth(**kw)
shp = shapereader.Reader(states_shp)
Now let's create a list of ...
It is well known that python work wonders as a "glue language." Together with IPython magic functions we can execute code, push and pull variables, call functions, and even compile code from other languages in the IPython cell.
In previous posts I showed some examples with R, octave and matlab ...
In a previous post I showed how to call matlab's t_tide using oct2py. But that is in the past now! Thanks to Mitchell O'Flaherty-Sproul we do not need to wrap the matlab code with oct2py! Now we have a full python version: ttide_py. Here is a quick example ...
Matplotlib's pcolor is not like MatlabTM pcolor, and that leads to some confusion. In fact, matplotlib's pcolor is an improved way to "pcolor" things.
Here are some plots to illustrate what I mean. First, some fake data
import numpy as np
data = np.array([[1, 2 ...