"Vectors are your friend"

HTML5 Canvas was a natural extension for giscloud.com:  Its distinction is to post vectors on the web, overlaying rasters like any GIS, and with a optional postGIS running in the background. Not only does this speed up drawing maps on the web, it also allows massive amounts - in the millions of points, lines and polygons - to render PDQ (pretty darn quickly) - thus Vectors are your friend - my moderately complex maps benefit from even clean&crisper renderings of polygons as expected and of tiled images especially.

Be the weatherman for others

Last week I posted dust and wind data germane to Kuwait in my banner map. This week take the same layers and mash them up with another service: Here I took a service from ESRI(France) to post volunteer ride-sharers (covoiturage) to their SIG 2011, and added weather and urban data, just to show how easy it is to augment existing offerings.

Be your own weatherman

Dust storms are what you look out for in Kuwait. The banner map was a very simple way for me to create my own weather map:

1. where are the dust clouds?
2. what is the wind direction?
3. when will Kuwait get one?

New book and banner ads

Geography is the basis of "Entre deux Eaux", my new book of poetry and prose on my travels and travails - check the publisher icon to the right, and soon on Amazon and Barnes&Noble in the banner - so much so that the book cover image is a snapshot of my three-year old web map:

New look and banner maps

You will have noticed that the banner picture is now a dynamic map... The monsoon season has passed and the hurricane season is starting: So let's augment the previous image of dust cover with NOAA's wind speed map too, shall we? You can zoon in&out or pan across the banner too! And you may have to "wait a sec" for the display to refresh. But I simply used the "embed" feature of ArcGIS Explorer maps, available from other packages too, and reformatted the entire banner to accommodate that.

2nd anniversary blog

[30 Sept. udate: I posted my Google Page Rank to the right: its jump from 2 on my website to 4 here is a further indication of how dynamic social media improve over static web. I also wrote on further social media dynamics I used in oilelefant.com last year.]

Hard to believe a year's gone by since my first anniversary blog! I compiled a few stats and posted them on Google Docs, here they are. NOTE: I don't have data where a premium is charged for it.

Simple Feature or Full Feature Specification for OGC?

The issue of how to write-to and read-from geographic databases has been around for quite some time. Esri shapefiles were a runaway success partly because of their open specification. As we moved onto spatial databases, the Open Geospatial Consortium (OGC) offered the simple feature specification (SFS) that all the players could read to or write from. This came in especially handy for consuming web mapping services (those and many other specifications have grown since). But it gets trickier when it comes to reading from and writing to spatial databases generically. By that I mean not from the native application but from others', like with shape files.

Even more beautiful maps in current affairs

I'm baaack! Here is the web mapping service directly in ArcGIS Explorer (AGX). This was posted two weeks ago as a layer package on arcgis.com. I wondered then why AGX would not accept OGC WMS services? While I was away ESRI Support responded with two caveats:

More beautiful maps in current affairs

As I'm off for two weeks you get next week's posting today! Following last week's blogpost on Esri's beautiful ocean base map, I painted over it (to use their simile) Goddard Earth Sciences' stunning near-real-time global sensor data for:

Illustrative maps in current affairs

[Update: I noted on many of my Google Fusion Table posts that, while the data are still on Google Drive for you to view, GFT no longer offers a polygon or heatmap option, only geocoding by country centroid in its new version. Not sure why, but on this, this, this and another example posted as Iframes not Scripts preserved the old GFT maps.]

The Data section of British paper The Guardian is a great example of illustrating reams of data and helping readers make sense of it - such maps are only illustrations, not exacting science as in my previous post - readers wish to grasp trends for tabular data by country, rather than examine their exact geographies.