http://forums.flowingdata.com/ Strength in Numbers en Sat, 11 Feb 2012 17:05:22 +0000 http://forums.flowingdata.com/topic/svg-map-of-canadian-census-tracts#post-2522 Sat, 04 Feb 2012 05:52:21 +0000 drivenbydata 2522@http://forums.flowingdata.com/ <p>I wrote a Python library for creating SVG maps from shapefiles. You know where to get a shapefile of Canadian census tracts? </p> http://forums.flowingdata.com/topic/svg-map-of-canadian-census-tracts#post-2521 Fri, 03 Feb 2012 16:22:26 +0000 fuller.daniel 2521@http://forums.flowingdata.com/ <p>Hi, </p> <p>I just did the US county themed map tutorial. I would like to do something similar with Canadian census tracts and census data. Has anyone come across a Canadian census tract SVG file? I've done some searching and haven't found anything. If one is not available any suggestions on creating a SVG file for Canadian census tracts. </p> <p>Thanks, </p> <p>Dan </p> http://forums.flowingdata.com/topic/svg-map-of-us-zip-codes#post-2424 Tue, 29 Nov 2011 07:52:52 +0000 rvall 2424@http://forums.flowingdata.com/ <p>Hi Stuart,</p> <p>You can find the map of zip areas in the US Census Tiger site:</p> <p><a href="http://www2.census.gov/cgi-bin/shapefiles2009/national-files" rel="nofollow">http://www2.census.gov/cgi-bin/shapefiles2009/national-files</a></p> <p>It is an ESRI Shapefile and it's size is 1GB. You can convert it to a svg file with some tools (you can google to find the best solution, depending on your needs), but i think that its too large to work directly in svg.</p> <p>In the Tiger site you can also find the 3-digit zip areas, and it's smaller (125MB) because it have less regions. </p> <p>Another thing you can do is a cartographic generalization before converting those maps to reduce te complexity of the vectors. </p> http://forums.flowingdata.com/topic/svg-map-of-us-zip-codes#post-2422 Mon, 28 Nov 2011 12:32:24 +0000 Stuart 2422@http://forums.flowingdata.com/ <p>Hi all,</p> <p>I'm starting a new project where we'll need to utilize an SVG map of the US that contains all 40 something thousand US ZIP codes. Has anyone worked with a ZIP code map of the US before, or be able to give an educated guess as to the size of the file?</p> <p>Thanks,</p> <p>Stuart. </p> http://forums.flowingdata.com/topic/world-map-choropleth#post-2348 Wed, 14 Sep 2011 14:11:30 +0000 McConnell 2348@http://forums.flowingdata.com/ <p>Wow, guess I just overlooked the country codes in that second map.<br /> Thanks for the advice, guys.</p> <p>And don't worry Nathan! The book is on it's way :D </p> http://forums.flowingdata.com/topic/world-map-choropleth#post-2347 Wed, 14 Sep 2011 13:55:58 +0000 nathany 2347@http://forums.flowingdata.com/ <p>Or you could grab a copy of the FlowingData book :) </p> http://forums.flowingdata.com/topic/world-map-choropleth#post-2346 Wed, 14 Sep 2011 13:33:24 +0000 tyson 2346@http://forums.flowingdata.com/ <p>Seems like that map you are trying to use doesn't have any geographic information associated with it. The paths all have an id, but that's probably just order of creation or something. </p> <p>The second one you posted is actually the same map used in Nathan's book to show how the same technique is used for a world map. Using that map just involves lining up the country codes used in the svg to whatever data you are using. </p> http://forums.flowingdata.com/topic/world-map-choropleth#post-2345 Wed, 14 Sep 2011 09:40:37 +0000 harald 2345@http://forums.flowingdata.com/ <p>For a combined 2D/3D solution, you may store data in KML </p> <p><a href="http://thematicmapping.org/api/prism.php" rel="nofollow">http://thematicmapping.org/api/prism.php</a> </p> http://forums.flowingdata.com/topic/world-map-choropleth#post-2343 Tue, 13 Sep 2011 18:45:11 +0000 McConnell 2343@http://forums.flowingdata.com/ <p>Hey guys, I've recently been working on a project that requires a world map choropleth. I read Nathan's post on creating a US County Thematic map (<a href="http://flowingdata.com/2009/11/12/how-to-make-a-us-county-thematic-map-using-free-tools/)" rel="nofollow">http://flowingdata.com/2009/11/12/how-to-make-a-us-county-thematic-map-using-free-tools/)</a>, which is extremely thorough. </p> <p>However, I can't seem to figure out how the path ids are setup in the world map I want to use. Seems like they aren't organized by FIPS codes... Here's the map I'm using: <a href="http://en.wikipedia.org/wiki/File:World_map_-_low_resolution.svg" rel="nofollow">http://en.wikipedia.org/wiki/File:World_map_-_low_resolution.svg</a></p> <p>I wouldn't mind using this one as an alternative: <a href="http://en.wikipedia.org/wiki/File:BlankMap-World6-Equirectangular.svg" rel="nofollow">http://en.wikipedia.org/wiki/File:BlankMap-World6-Equirectangular.svg</a></p> <p>Perhaps someone could shed some light on this! Thanks.</p> <p>Note: I'm familiar with this project <a href="http://gsl-nagoya-u.net/appendix/software/worldmap/" rel="nofollow">http://gsl-nagoya-u.net/appendix/software/worldmap/</a> but I would prefer to use a different map than the one they provide. </p> http://forums.flowingdata.com/topic/flight-path-mapping#post-2214 Fri, 27 May 2011 00:41:54 +0000 nathany 2214@http://forums.flowingdata.com/ <p>Um, I think you might like this:</p> <p><a href="http://flowingdata.com/2011/05/11/how-to-map-connections-with-great-circles/" rel="nofollow">http://flowingdata.com/2011/05/11/how-to-map-connections-with-great-circles/</a> </p> http://forums.flowingdata.com/topic/flight-path-mapping#post-2212 Thu, 26 May 2011 17:08:16 +0000 mikev 2212@http://forums.flowingdata.com/ <p>I really like the maps of flight patterns I've seen and I'd like to create one. Ideally, I could do it on MapPoint, but I don't think it's possible. Does anyone have any suggestions on how to create a map showing connections between departure airports and destination airport? Actual flight pattern isn't necessary, just connection between two points (airports) with a strait line or preferable a gentle arc. Thanks. </p> http://forums.flowingdata.com/topic/data-visualization-plugin-for-wordpress#post-1997 Mon, 29 Nov 2010 19:22:17 +0000 karger 1997@http://forums.flowingdata.com/ <p>A reader of <a href="http://haystack.csail.mit.edu/" rel="nofollow">our blog</a> suggested that a <a href="http://groups.csail.mit.edu/haystack/blog/2010/11/19/a-knight-news-challenge-application/" rel="nofollow">recent post</a> might be of interest to this forum. We've created a Wordpress plugin called <a href="http://projects.csail.mit.edu/datapress/" rel="nofollow">Datapress</a> that lets you embed rich data visualizations into your blog using the standard Wordpress WYSIWYG editing tool. You upload (or link to) a spreadsheet or other data file, then present it using maps, timelines, sortable lists, thumbnail collections, and a variety of other views, all of which can be filtered using various "facets" including lists, tag clouds, and sliders. There's more information in the blog post and project site listed above. The plugin itself is on the <a href="http://wordpress.org/extend/plugins/datapress/" rel="nofollow">Wordpress plugin site</a>. We're eager to have you try it out and give feedback, and happy to help with problems you encounter. </p> http://forums.flowingdata.com/topic/minard-redesign-competition#post-1645 Mon, 22 Mar 2010 13:59:55 +0000 mrmunion 1645@http://forums.flowingdata.com/ <p>Good day, all!</p> <p>I'm writing to solicit your participation in a casual map redesign competition, hosted by my blog, Cartastrophe. The aim is to see if we can improve upon Charles Joseph Minard's famed map of Napoleon's march to Moscow.</p> <p>I have no big prizes to offer (except some free maps), nor is winning my competition likely to be something worthy of putting on your resume. I am merely one graduate student. But, I thought it would be fun and would like to get as many people as possible involved.</p> <p>More details here: <a href="http://cartastrophe.wordpress.com/2010/03/18/getting-minard-to-spin-in-his-grave/" rel="nofollow">http://cartastrophe.wordpress.com/2010/03/18/getting-minard-to-spin-in-his-grave/</a></p> <p>The deadline is June 1st, 2010.</p> <p>Thanks for your indulgence, and I hope to see some excellent and inspiring works come out of this. </p> http://forums.flowingdata.com/topic/mapping-web-site-navigation#post-1533 Wed, 17 Feb 2010 11:53:29 +0000 andycrellin 1533@http://forums.flowingdata.com/ <p>Hi,</p> <p>Something like this:</p> <p><img src='http://farm5.static.flickr.com/4015/4365733134_d3937366b5.jpg' /></p> <p>Cheers,</p> <p>Andy. </p> http://forums.flowingdata.com/topic/mapping-web-site-navigation#post-1526 Mon, 15 Feb 2010 10:57:16 +0000 nathany 1526@http://forums.flowingdata.com/ <p>um, do you have an example in mind? </p> http://forums.flowingdata.com/topic/mapping-web-site-navigation#post-1524 Mon, 15 Feb 2010 10:09:23 +0000 andycrellin 1524@http://forums.flowingdata.com/ <p>Hi,</p> <p>I have a simple web site dataset consisting of:</p> <p>Page<br /> Next Page<br /> Number of sessions making that step</p> <p>The "Page" and "Next Page" values can be the same in a row (e.g. a postback).</p> <p>I'd like to show this data as a map of pages with arrows showing the number of sessions going from one page to the next. I can do this manually of course, but I'm looking for something that will do it automatically, allowing me optimise the diagram and show arrows of different sizes, for example. A web based solution would work well, but failing that anything will do! Any ideas?</p> <p>Thanks in advance,</p> <p>Andy. </p> http://forums.flowingdata.com/topic/i-have-the-data-how-do-i-create-a-walmart-or-target-like-map#post-1429 Mon, 18 Jan 2010 17:29:47 +0000 wiscodude 1429@http://forums.flowingdata.com/ <p>John, do you have a link to this specific example? </p> http://forums.flowingdata.com/topic/i-have-the-data-how-do-i-create-a-walmart-or-target-like-map#post-1133 Thu, 03 Sep 2009 04:20:42 +0000 johnm 1133@http://forums.flowingdata.com/ <p>We've just introduced an animation bar in v.6.1 to allow you to play a time series sequence in exactly this way.<br /> So you could deliver something very similar (with other features too) using InstantAtlas (<a href="http://www.instantatlas.com)" rel="nofollow">http://www.instantatlas.com)</a>.<br /> John </p> http://forums.flowingdata.com/topic/i-have-the-data-how-do-i-create-a-walmart-or-target-like-map#post-1122 Tue, 01 Sep 2009 07:37:57 +0000 wiscodude 1122@http://forums.flowingdata.com/ <p>Thanks Nathan! </p> http://forums.flowingdata.com/topic/i-have-the-data-how-do-i-create-a-walmart-or-target-like-map#post-1120 Mon, 31 Aug 2009 09:48:39 +0000 nathany 1120@http://forums.flowingdata.com/ <p>i open-sourced the code. it needs work, but it's a start:</p> <p><a href="http://flowingdata.com/2008/10/21/code-for-walmart-growth-visualization-now-available/" rel="nofollow">http://flowingdata.com/2008/10/21/code-for-walmart-growth-visualization-now-available/</a> </p>