Control Layer Opacity with jQueryUI Sliders

Feb 072012
ô 

It〙s been a while since I last posted on my blog! Very excited to be back =D. The fall uniôÙverôÙsity semesôÙter went by quickly due to an onslaught of projects, tests and my underôÙgradôÙuôÙate theôÙsis, which I am proud to say that I surôÙvived and comôÙpleted with honôÙours. This semesôÙter I started workôÙing for Dr. Claus RinôÙner (my theôÙsis superôÙviôÙsor) on a web mapôÙping appliôÙcaôÙtion that utiôÙlizes some of the data from my theôÙsis. All in all, a busy year for me at the university!

Today I would like to take some time and introôÙduce the power of jQuery, specifôÙiôÙcally the UI slider eleôÙment. ConôÙtinue reading ô£

Visualizing the Canadian Crime Severity Index

Sep 292011
ô 

WorkôÙing with the Crime SeverôÙity Index has been an interôÙestôÙing exerôÙcise. The data are availôÙable through StaôÙtisôÙtics Canada, which tracks police-reported crime severôÙity as well as the volôÙume of reported crimes. The Crime SeverôÙity Index offers a secôÙondary meaôÙsure that helps us to underôÙstand more about the crimesô comôÙmitôÙtedô per Province. GenôÙerôÙally speakôÙing, severôÙity of crime is not corôÙreôÙlated with the volôÙume of crimeô comôÙmitôÙted, but there are cerôÙtainly some outôÙliers. We inherit the inabilôÙity to deterôÙmine whether or not these corôÙreôÙlaôÙtions actuôÙally prove to be true when studyôÙing data aggreôÙgated to such a large (ProvinôÙcial) extent. ConôÙtinue reading ô£

The Growth of Costco in the USA

Sep 262011
ô 

Not unlike other superôÙstores around the world, Costco〙s presôÙence has had someôÙwhat of a proôÙfound impact on our conôÙsumerisôÙtic lives. The abilôÙity to purôÙchase goods at larger than norôÙmal quanôÙtiôÙties, someôÙtimes well below averôÙage retail value, makes it an attracôÙtive shopôÙping expeôÙriôÙence. The first Costco opened in San Diego, CalôÙiôÙforôÙnia, 1976. It〙s growth shows wildfire-like spread throughôÙout the United States west coast. It is only in the mid-to-late 90〙s which show remarkôÙable expanôÙsion of Costco locaôÙtions to cenôÙtral and eastôÙern United States.. ConôÙtinue reading ô£

Extent of Snow Cover in Canada (2007)

Sep 232011
ô 

SomeôÙtimes we stumôÙble upon interôÙestôÙing things and we don〙tô necôÙesôÙsarôÙilyô know how we should use what we have just found. A series of maps; snow cover in Canada was an interôÙestôÙing find but not really all that useôÙful for any of my perôÙsonal projects. HowôÙever, I evenôÙtuôÙally came back to it when I realôÙized that not all geoôÙviôÙsuôÙalôÙizaôÙtions occur within a GIS enviôÙronôÙment. ConôÙtinue reading ô£

ArcGlobe; Population Density by Extrusion

Sep 202011
ô 

There exists many methôÙods for geoôÙviôÙsuôÙalôÙizaôÙtion of spaôÙtial pheôÙnomôÙena. As talked about a few weeks ago, popôÙuôÙlaôÙtion denôÙsity can be mapped out using carôÙtograms, or by other more clasôÙsiôÙcal methôÙods, such as the chloroôÙpleth and dot denôÙsity techôÙniques. Another method is shown below, whereby popôÙuôÙlaôÙtion denôÙsity is explored as a 3-dimensional polyôÙgon extruôÙsion. This has been comôÙpleted using ArcôÙGlobe with ESRI basic world population-by-state data. Have a look at the video below! ConôÙtinue reading ô£

Free and Open GIS data resources

Sep 192011
ô 

Open, free and pubôÙlic. Three terms, which when appearôÙing before the word 〜GIS〝 make geoôÙgôÙraôÙphers feel all warm and fuzzy (I think?). GeospaôÙtial data can be very costly, but free alterôÙnaôÙtives may be suitôÙable, if not as useôÙful, as their expenôÙsive counôÙterôÙparts. ThereôÙfore, its worthôÙwhile knowôÙing what data is availôÙable for pubôÙlic conôÙsumpôÙtion. I have comôÙpiled a list of the open GIS data resources that I freôÙquently make use of in my perôÙsonal projects. HopeôÙfully they become as useôÙful to you, as they are to me. ConôÙtinue reading ô£

Geocaching in Montrûˋal

Sep 132011
ô 

A week was spent in MonôÙtrûˋal, winôÙing, dinôÙing and explorôÙing both old and new. While there, Heather and I had the opporôÙtuôÙnity to do some geoôÙcaching. Not only was this a new expeôÙriôÙence for Heather, it was also the first time I had been out geoôÙcaching in almost 10 years. Only now do I rememôÙber how frusôÙtratôÙing it can be when you can〙t find any of the geoôÙcaches you have set out to look for. Heather and I manôÙaged to locate 1 of 7 geoôÙcaches durôÙing our trip and we took pleaôÙsure out of findôÙing it in the midôÙdle of a conôÙcrete junôÙgle. ConôÙtinue reading ô£

Global Connectivity Revisited; mapping out 58,288 flight routes

Sep 042011
ô 

You can now purôÙchase a copy: here!

I guess we can call this part two of the global conôÙnecôÙtivôÙity by flight experôÙiôÙment, which I have been workôÙing on the past couôÙple of days. Once again, the data comes from openflights.org/data.html and isô availôÙableô for free to the pubôÙlic. It is a very detailed set of data that requires just a litôÙtle bit of masôÙsagôÙing to be usable in a deskôÙtop work enviôÙronôÙment. In this blog post I would like to take you through some quick helpôÙful tips that should get you from downôÙloadôÙing the data and cleanôÙing it up to mapôÙping it in ArcMap. In all honôÙesty, I would have loved ConôÙtinue reading ô£

Open Flights; Mapping Global Connectivity

Sep 022011
ô 

Open FlightsAfter havôÙing seen the many iterôÙaôÙtions of the global conôÙnecôÙtivôÙity map, I have decided to give it a try myself. The maps are being proôÙduced using thisô data, which offers pubôÙlic air-traffic data in tabôÙuôÙlar forôÙmat.ô The data is availôÙable in three catôÙeôÙgories: airôÙports, airôÙlines and routes. The airôÙports and routes data can be manipôÙuôÙlated, comôÙbined and cleaned-up to creôÙate a comôÙpliôÙmenôÙtary table that lists the lonôÙgiôÙtude and latôÙiôÙtude of each flights oriôÙgin and desôÙtiôÙnaôÙtion. This allows us to conôÙnect each flight oriôÙgin and desôÙtiôÙnaôÙtion. HowôÙever, straight lines of ConôÙtinue reading ô£

Planning a trip using Google Fusion Tables

Sep 012011
ô 

As our trip to MonôÙtrûˋal nears, Heather (my girlôÙfriend) and I have been stuôÙdiously keepôÙing track of the places that we would like to explore. One thing is for sure, we are going to be more than preôÙpared because we are using google fusion tables. May it be a raved about restauôÙrant or a groôÙcery store that is closôÙest to our hotel, we have every place of interôÙest accesôÙsiôÙble online as a map or in tabôÙuôÙlar forôÙmat. ConôÙtinue reading ô£

ô Older Entries ô Newer Entries