ljegou
ljegou on Hacker News
OmniGraffle works well for me. (MacOS)
The large circles often mask the little ones. No legend, no symbol scale, no color scale. That's not how you do thematic cartography.
And her hatred about France (at the time) too.
Posted by
ljegou on Thursday November 07, 2013 @07:09AM
from the geotests.net dept.
Interesting. Still nothing about the ridiculous Mercator projection.
- WebServices, to provide access for R, Python, and spatial calculations (WPS norm). Complex calculations without installing any client software, anywhere with an Internet connection.
- PostGIS raster capabilities (at last some raster storage and computing inside the database).
- Devon:Think / Bookends / Nisus Writer : Scientific papers and books intelligent storage, bibliography management and scientific writing.
Posted by
ljegou on Wednesday December 29, 2010 @02:24AM
from the processingjs.org dept.
And repeated letters are lame and childish (but we have been spared the exclamation points).
Yes, what a pity it's reserved to US citizens :/
Thanks for this very interesting report of the conference. The positions and arguments are well and shortly exposed.
The boundary between diagram and geographical map is in question with subway "maps", and the graphic design is still a challenge.
I'm glad to see that the subject of map design is alive and expanding with new media. However, i'd like to see more references to semiology and perception psychology :-)
I'm more interested by the versioning function. For book-size manuscripts i work chapter by chapter + annexes.
I love the idea of automatic secure saves for my writings. I can use flashbake instead of dropbox. But i'd like to have a clear understanding of GitHub free plans caveats, especially about privacy of the repos :)
"A Beautiful Mind", about John Forbes Nash Jr.
Google Maps is not useless, far from it. The projection method chosen (Mercator) is useless for the small scales, and misleading. Except if you are a (XVII° century) marine navigator.
De-zoom and look at the apparent continent sizes, it's just horrible. Half of emerged lands in antarctica ? Groenland the size of Africa ? Think about children exposed to those maps before a good atlas is showed to them.
I co-wrote a paper about this topic, but it's in french :
http://mappemonde.mgm.fr/num20/internet/int08401.html
A technical choice (summary : it's easier to have perpendicular parallels and meridians) has prevailed upon a geographical choice. It's not very complicated to link the projection to the scale of the view, all serious geographical internet portals are doing so (IGN, Ordnance Survey, etc.)
The micro-scale graphical design is good. It's a pity, however, that big geographical and data quality blunders are present on Google Maps.
Examples : world projection (Mercator, useless), lack of metadata (dates of the images ?), choice of labels at medium scale (especially with the 'Relief' maps).
Such discrepancy between good graphical precision, esthetics and geographical imprecision, lack of quality information are misleading a large part of the public.
I agree, but i kept wondering about the lifespan of my apple-samsung ssd, without trim.
Posted by
ljegou on Sunday November 21, 2010 @09:08AM
from the bookpod.uoftbookstore.com dept.
The best (scientifically sound and recent) information about color perception i found is in Colin Ware books :
- Information Visualization : perception for design (chapter 4 about color)
- Visual Thinking (more accessible).
Google Maps must diffuse metadatas with their maps : date, origin/source, level of quality, scale of usability, etc.
It's the least they can do to reduce the occurence of such problems. Any honest and serious map data diffusion present metadatas. Cf. the EU "Inspire" directive for public geographical data diffusion.
It sounds a bit paranoid (and surely technically unimportant), but the first negative aspect that i think of is :
this is putting Google into our servers, too.
Thanks, it was bugged in my 8.x OSX version of Chrome (can't change page)
Yep, especially about noise and texture.
I agree, but the first part of the first sentence is very very true. As a french university employee, i can confirm :/
Beware, coordinates are not always expressed in the same referencial (geoid, ellipsoid, etc.).