matplotlib-basemap

问题 I am making a plot using the matplotlib library and showing it in my wxPython GUI. I am plotting a massive amount of data points from a LIDAR instrument. The thing is, I would like to draw rectangles in this plot to indicate interesting areas. But when I draw a rectangle on the same axes as the plot, the whole plot gets replotted which takes lots of time. This is because of the self.canvas.draw(), a function which replots everything. The code gets displayed as follows in the GUI: Printscreen

问题 I have the figure shown below. Presently the figure's colorscheme uses the entire range of the colormap (mpl.cm.Paired). What I want to do, and have been unable to figure out, is how to limit matplotlib to use only a subset of the colormap. In this case I am trying to get the starting color to be a darker shade of blue. Here's the plotting section of my code: Figure = plt.figure(figsize=(22,10)) Map = Basemap(projection='robin', lon_0=0, resolution='l') x, y = Map(LONS, LATS) levels = np

问题 I'm trying to install vn 1.2 of Matplotlib on my Ubuntu computer so that I can use some of the animation features. Crucially I also need Basemap. The only way I've found of importing Basemap is through apt-get. I can install matplotlib 1.2 loads of different ways - using pip, apt-get and from source, but no matter what I do, when it comes to typing in sudo apt-get install python-mpltoolkits.basemap I'm always told that matplotlib will be installed because apt-get can't see the version 1.2

问题 I am working with some weather data to plot contour lines on basemap using matplotlib. The data I have used (x, y and data) is uploaded here http://www.mediafire.com/download/0epjjdm8auit611/mslp.txt here http://www.mediafire.com/download/1dn6p8nw96h2mmd/xlong.txt and here http://www.mediafire.com/download/31suzsz6j7u2bgz/xlat.txt. The working example code is below:- from mpl_toolkits.basemap import Basemap import numpy as np import matplotlib.pyplot as plt from matplotlib.patches import

问题 I have run into a problem that has been bothering me for hours. I found multiple occurrences of this problem (some are kinda old) in this site and others but no solution worked for me so I decided to try and ask for help on my individual problem.. I'm using Windows 10 and Python 35-32, 32 bit. I have downloaded basemap-1.1.0-cp35-cp35m-win32.whl from http://www.lfd.uci.edu/~gohlke/pythonlibs/ and tried to install it with pip install [FULL PATH] in Administrator Command Prompt. I have

问题 back again. I am still working on it but I can not fix it The script is running fine but when I freeze it using cx_freeze a cx_freeze error appears. at the end of the message says OSError:proj data directory not found. Expecting it at: C:\python34........mpl_toolkits\basemap\data Is the data not included in the build directory created by cx_freeze ? I am using the following script for freezing base = None def find_data_file(pyproj): if getattr(sys,'XXXXs.exe',False): datadir = os.path.dirname

问题 I'm using mlab.griddata to interpolate some data when I encountered a strange and what looks like floating point precision bug. This is calling sequence: nvals = matplotlib.mlab.griddata(lon_old.ravel(), lat_old.ravel(), ivals.ravel(), lon_new, lat_new,interp='linear').T lat_old = array([ 19.62606908, 18.50457985, 17.38309053, 16.26160115, 15.14011169, 14.01862218, 12.8971326 , 11.77564298, 10.65415331, 9.53266359, 8.41117384, 7.28968406, 6.16819425, 5.04670442, 3.92521457, 2.8037247 , 1

问题 I am not sure on how to plot a dotted line from a shapefile in Python. It appears that readshapefile() does not have any linestyle for me to set. Below I have a working code where I take a shapefile and plot it, but it only plots a solid line. Any ideas to set me in the right direction? Thanks! The shapefile can be found here: http://www.natice.noaa.gov/products/daily_products.html, where the Start Date is Feb 15th, end date is Feb 17th, and the Date Types is Ice Edge. It should be the first

问题 Basically, my experimental program is trying to find the number of points that fall within a (e.g., 50km) radius of a valid point at a given time. My data is structured (but I can restructure if need-be) in three separate arrays such: 1_LAT,1_LON,1_TIM Where 1_LAT,1_LON,1_TIM all contain roughly ~250 values corresponding to Latitude, Longitude (decimal degrees), and time respectively. I have 20 sets of these arrays (i.e., 1_LAT,1_LON,1_TIM...20_LAT,20_LON,20_TIM). Here is what I would like to

问题 I am trying to draw the maximum (theoretical) field of view of a satellite along its orbit. I am using Basemap, on which I want to plot different positions along the orbit (with scatter), and I would like to add the whole field of view using the tissot method (or equivalent). The code below works fine until the latitude reaches about 75 degrees North, on a 300km altitude orbit. Beyond which the code outputs a ValueError: "ValueError: undefined inverse geodesic (may be an antipodal point)"