Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed3a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.009 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'url:sourceforge': 0.03; 'from:addr:yahoo.co.uk': 0.04; 'skip:p 60': 0.07; 'lawrence': 0.09; 'matplotlib': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'language.': 0.14; 'numpy': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'language': 0.16; 'thanks,': 0.17; 'wrote:': 0.18; 'all,': 0.19; 'import': 0.22; 'header:User-Agent:1': 0.23; '---': 0.24; 'header:X-Complaints-To:1': 0.27; 'header:In-Reply-To:1': 0.27; 'skip:g 30': 0.30; 'python2.7': 0.31; 'anyone': 0.31; 'skip:c 30': 0.32; 'url:listinfo': 0.36; 'to:addr:python-list': 0.38; 'does': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'how': 0.40; 'skip:n 30': 0.60; 'free': 0.61; 'viruses': 0.61; "you're": 0.61; 'protection': 0.63; 'our': 0.64; 'more': 0.64; 'antivirus': 0.68; 'skip:n 40': 0.81; 'contour': 0.84; 'plotted': 0.84; 'shop,': 0.84; 'skip:y 50': 0.84 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Mark Lawrence Subject: Re: Contouring a 2D histogram Date: Fri, 27 Jun 2014 16:59:39 +0100 References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: host-92-18-5-57.as13285.net User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 In-Reply-To: X-Antivirus: avast! (VPS 140627-0, 27/06/2014), Outbound message X-Antivirus-Status: Clean X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 51 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1403884804 news.xs4all.nl 2875 [2001:888:2000:d::a6]:33471 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:73658 On 27/06/2014 13:09, Jamie Mitchell wrote: > Hi all, > > I have plotted a 2D histogram like so: > > python2.7 > import netCDF4 > import iris > import iris.palette > import numpy as np > import matplotlib as mpl > import matplotlib.cm as cm > import matplotlib.mlab as mlab > import matplotlib.pyplot as plt > from matplotlib.colors import from_levels_and_colors > > fig=plt.figure() > nbins=20 > nice_cmap=plt.get_cmap('brewer_RdYlBu_11') > colors=nice_cmap([5,6,7,8,9,10]) > levels=[1,2,3,4,5] > cmap, norm=from_levels_and_colors(levels, colors, extend='both') > > H, xedges, yedges=np.histogram2d(te_Q0_con_sw,hs_Q0_con_sw,bins=nbins) > Hmasked=np.ma.masked_where(H==0,H) > plt.pcolormesh(xedges,yedges,Hmasked,cmap=cmap,norm=norm,label='Q0 control') > > # From this I get a 'scattered' 2D histogram. > > Does anyone know how I can contour that scatter? > > Thanks, > > Jamie > You're more likely to get answers from https://lists.sourceforge.net/lists/listinfo/matplotlib-users or, if you prefer the one stop shop, gmane.comp.python.matplotlib.general -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com