Comments for Jon Bruner http://jebruner.com Quantified Mon, 09 Jan 2012 18:42:24 +0000 hourly 1 http://wordpress.org/?v=3.2.1 Comment on How To Build an Interactive Map with Open-Source Tools by Jon Bruner http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-267 Jon Bruner Mon, 09 Jan 2012 18:42:24 +0000 http://jebruner.com/?p=295#comment-267 That's an excellent thought, and I'd definitely download the initial county map already rendered as an SVG if only some people weren't still using IE 6, 7 and 8, which can't render SVGs. If I'd had an extra week to make this map, I might have detected browser on load and used an SVG for modern browsers and VML for Internet Explorer. That's basically what Raphael is doing, but you're right--it'd be more efficient to pre-render the map. That’s an excellent thought, and I’d definitely download the initial county map already rendered as an SVG if only some people weren’t still using IE 6, 7 and 8, which can’t render SVGs. If I’d had an extra week to make this map, I might have detected browser on load and used an SVG for modern browsers and VML for Internet Explorer. That’s basically what Raphael is doing, but you’re right–it’d be more efficient to pre-render the map.

]]> Comment on How To Build an Interactive Map with Open-Source Tools by Jeremy http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-266 Jeremy Sat, 07 Jan 2012 19:12:59 +0000 http://jebruner.com/?p=295#comment-266 Great job! One optimization thought - what if you downloaded the initial county map so it didn't need to be rendered in the browser? The initial view would be presented sooner - but could you still load all the data through raphael and have it handle the interactive rendering but skip the initial rendering? And would it be any faster to load that data if you could skip the step of actually rendering the initial map? Great job! One optimization thought – what if you downloaded the initial county map so it didn’t need to be rendered in the browser? The initial view would be presented sooner – but could you still load all the data through raphael and have it handle the interactive rendering but skip the initial rendering? And would it be any faster to load that data if you could skip the step of actually rendering the initial map?

]]> Comment on Drawing Lines Between Billionaires and Politicians by Xuan http://jebruner.com/2011/10/drawing-lines-between-billionaires-and-politicians/comment-page-1/#comment-175 Xuan Sun, 04 Dec 2011 07:47:03 +0000 http://jebruner.com/?p=275#comment-175 much simpler: theta = math.atan2(y2-y1, x2-x1) line_x1 = x1 + r1 * math.cos(theta) line_y1 = y1 + r1 * math.sin(theta) line_x2 = x2 - r2 * math.cos(theta) line_y2 = y2 - r2 * math.sin(theta) much simpler:

theta = math.atan2(y2-y1, x2-x1)

line_x1 = x1 + r1 * math.cos(theta)

line_y1 = y1 + r1 * math.sin(theta)

line_x2 = x2 – r2 * math.cos(theta)

line_y2 = y2 – r2 * math.sin(theta)

]]> Comment on How To Build an Interactive Map with Open-Source Tools by Karen http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-171 Karen Fri, 02 Dec 2011 17:06:31 +0000 http://jebruner.com/?p=295#comment-171 Very nice map and good directions. Thanks. Very nice map and good directions. Thanks.

]]> Comment on How To Build an Interactive Map with Open-Source Tools by Jonathan Callahan http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-148 Jonathan Callahan Sat, 26 Nov 2011 20:54:33 +0000 http://jebruner.com/?p=295#comment-148 Excellent example of what can be done with python, javascript and json these days. Thanks for sharing the details. I often take a similar approach of precompiling many small datasets when I know users will only be asking for a few. Understanding how users will interact with your tool and designing to meet those expectations is key. Congratulations on a well conceived, well executed data visualization tool. Excellent example of what can be done with python, javascript and json these days. Thanks for sharing the details. I often take a similar approach of precompiling many small datasets when I know users will only be asking for a few. Understanding how users will interact with your tool and designing to meet those expectations is key.

Congratulations on a well conceived, well executed data visualization tool.

]]> Comment on How To Build an Interactive Map with Open-Source Tools by Jon Bruner http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-138 Jon Bruner Thu, 24 Nov 2011 19:52:57 +0000 http://jebruner.com/?p=295#comment-138 Most moves--about 2/3--are within the same county and are therefore not represented on the map. Here are some general stats on migration: http://www.census.gov/hhes/migration/data/cps/cps2011.html Most moves–about 2/3–are within the same county and are therefore not represented on the map. Here are some general stats on migration: http://www.census.gov/hhes/migration/data/cps/cps2011.html

]]> Comment on How To Build an Interactive Map with Open-Source Tools by Tim http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-136 Tim Thu, 24 Nov 2011 17:24:03 +0000 http://jebruner.com/?p=295#comment-136 "Close to 40 million Americans move from one home to another every year." What percent of that number are folks who move within a county and thus don't appear on the interactive map? “Close to 40 million Americans move from one home to another every year.”
What percent of that number are folks who move within a county and thus don’t appear on the interactive map?

]]> Comment on How To Build an Interactive Map with Open-Source Tools by dphenderson http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-125 dphenderson Mon, 21 Nov 2011 18:19:49 +0000 http://jebruner.com/?p=295#comment-125 Thanks for the info Jon, the quotes were exactly that quotes. My curiosity was whether or not the naming convention had a source datafile or a convention. Now, I know, convention. I liked the naming style as was wondering mainly how much worked I'd have to do to reproduce it. Thanks for the info Jon, the quotes were exactly that quotes. My curiosity was whether or not the naming convention had a source datafile or a convention. Now, I know, convention. I liked the naming style as was wondering mainly how much worked I’d have to do to reproduce it.

]]> Comment on How To Build an Interactive Map with Open-Source Tools by Jon Bruner http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-124 Jon Bruner Mon, 21 Nov 2011 17:13:50 +0000 http://jebruner.com/?p=295#comment-124 By that I meant styled according to AP standards, which mostly means state abbreviations that aren't postal codes (i.e., "W.Va." instead of "WV"). I also inserted the name of each county's largest city in parentheses for improved searchability. By that I meant styled according to AP standards, which mostly means state abbreviations that aren’t postal codes (i.e., “W.Va.” instead of “WV”). I also inserted the name of each county’s largest city in parentheses for improved searchability.

]]> Comment on How To Build an Interactive Map with Open-Source Tools by Leroy http://jebruner.com/2011/11/how-to-build-an-interactive-map-with-open-source-tools/comment-page-1/#comment-122 Leroy Mon, 21 Nov 2011 11:00:19 +0000 http://jebruner.com/?p=295#comment-122 Hey this is good. Let me see if I can come up with something like this for my country. I'm from India :) Hey this is good. Let me see if I can come up with something like this for my country. I’m from India :)

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