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Parts of the world will become virtualized as time and people arise to tackle
them. If you are working on any particular location and are willing to
be listed here, please let us know!
- Natural Resources Canada
is the main data agency
- the Centre
for Topographic Information (CITS)
- GeoConnections - a
"national partnership initiative working to build
the Canadian Geospatial Data Infrastructure (CGDI) which will make Canada's
geospatial databases, tools and services readily accessible on-line."
- GeoConnections Discovery Portal
- Canadian EOSD Images
- LandSat4/5 mosaics at 250m, false-color (bands 7, 4 and 2), TIF
or ECW format.
- Full uncompressed image is 640MB. Projection is LCC, fairly few
- distributes geospatial data of Canada, without charge
- includes vector data, imagery, vegetation and land-use data
- the relationship to GeoBase is
- Matt Wilkie says: "If you already know
what you're looking for, skip the 20-clicks interface at the GeoGratis
home page, and dive straight into
- Vector data:
dataset provides data at the 1:50,000 and 1:250,000 scale and includes
tens of thematic layers with numerous attributes
is another government source of free data. They have:
- Administrative Boundaries, Elevation Data, Geographical Names (toponymy),
Landsat-7, and Road Network (NRN)
- the elevation is available at 1:50,000 scale
- which is generally .75 arc-second resolution
- which is roughly 15m x 23m in the south of the country
- the file format is a "modified" USGS DEM, readable by
- coverage is not complete, but does have most of the country
Road Network File (RNF)
- product of Statistics
Canada, with a very generous, although lengthy, "unlimited use"
- distributed as .shp, .tab, or in some GML-based format
- fields include street names, type and direction (e.g. "Ave", "NE"),
address numbers, and class (basically "street" vs. "highway")
- intended for use in the Census, lacks topology, width, lanes, and other
fields that would make it useful for visualization
- how does this differ from GeoBase's
National Road Network?
- an older elevation format sometime encountered is CDED, "Canadian Digital
- ground spacing of the points is strange, since it is geographic, and
Canada has such high latitudes
- confusingly, GeoBase also refers to their "modified" USGS
DEM as "CDED"
- The Leica Virtual Explorer product line had a demonstration dataset
of Calgary, AB.
- Was downloadable from virtualleica.com: a 3.7MB installer and links to two
- However, when i tried it (March 2006) i only get an error message about "Desired
scene does not exist". Other folks have tried and failed as well
to get it to launch.
2005, Tyler Mitchell assembled a nice VTP dataset of
Provincial Park and surrounding region. (snapshot)
- Please try downloading it with Bittorrent:
- Simply download the archive and add it to your VTP Data paths. You can
explore it yourself, or try the included animation path.
The texture is supplied in two sizes: 4k tiled, and 8k tiled. To switch
to the 8k tiled, change your Terrain Parameters: Texture: Tile size from
1024 to 2048. That is, if your graphics card can handle 64 megatexels.
- The City of Nanaimo, BC, on Vancouver Island, has been especially active
- The city is committed to freely sharing its data in accessible
formats and in September 2009 opened their
Open Data Catalogue Beta, where
you can find and download the data (shp, kml, csv, xls, dwg, ecw, Mr. Sid)
- As of 2003 (well before the rest of the country) Manitoba provided all of its geospatial data free of charge
for unrestricted use!
- site: Manitoba Land Initiative only
requires free registration
- it has: a vector base map, 100m DEMs in a MapInfo format, a few LandSat7
images with each band in a separate TIF/SID file, Geographical Names as a SHP
file, Land Use, some GIFs showing street layout of small towns, 1:20,000 "topo
maps" actually in SHP format, roads, and other GIS layers
- A LIDAR scan of Ottawa exists with ~100 million points, colorized
- It was probably collected by Canadian company
Neptec Technologies Group (in 2006-2008?),
as part of "Urban Reasoning and Geospatial Exploitation Technology
(URGENT) program undertaken by DARPA": "Neptec primed the collection of
a high-resolution 3D data of Ottawa which has since become the standard
for geo-referenced 3D urban data sets."
- A company called DaytaOhio, the "Wright Center for
Data", was providing licenses to the dataset at one point. They
were merged into the Wright State
Research Institute in 2011.
- It is the data used in the paper
Shape-based Recognition of 3D Point Clouds in Urban Environments (Princeton,
- Makai Voyager Demo includes
streamed serving of it as a free example dataset (released August 2011,
led by John C Anderson).
CoViz 4D has also used
it as an example.
- Not to be confused with LIDAR of Ottawa
County, Ohio (which is online, 3.4GB, uncolorized)
- In January 2013, an Ottawa city employee stated, "The City does have
LiDAR data (from 2006) but unfortunately, we are under strict licensing
restrictions and cannot share the data." They say that
GeoDigital is the owner.
- Back in 2003, the town of Oakville put online an amazing web map engine
with a detailed view of the town that started to resemble 3D rendering
(non-realtime). Tourism View of Oakville [oakvillegis.ca,
2003, no longer online]:
completely free 30 meter DEMs
are available from Geomatics Yukon
about the DEMs)
- Matt Wilkie is the person
chiefly responsible for the Yukon DEMs, and created VTP scenes from them, along
with seamless Yukon Landsat-7 satellite mosaic by Geomatics Yukon
- Vegetation: whe most visible species in the Yukon, according to Bruce Bennett,
Botanist: "The most visible species in the valleys is likely White Spruce
(Picea glauca) throughout the territory except for mountains and far
north, Trembling Aspen (Populus tremuloides) in drier and more open sites,
Lodgepole Pine (Pinus contorta) in the southcentral and southeast Yukon
and perhaps Red Willow (Salix pulchra) in the mountains and Cottongrass
(Eriophorum vaginatum) in the wet sedge meadows of the north."
Prince Edward Island
- Complete Digital
Airphoto library for the years 1935, 1958, 1974, 1990 and 2000 of the province
of Prince Edward Island, Canada can be found and downloaded from their website.