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25 May 2010

ParkInfo.org Parks and Recreation Sites

ParkInfo.org - Exciting New Cartography for Web Access to Parks and Recreation Sites

ParkInfo.org Full Parks Info in 3D
View Data from 3d ParkInfo.org combines the cartographic and the terrain to produce highly effective visualisations of the campgrounds and park boundary information.

The non-profit www.greeninfo.org Network has just put up a new version of its ParkInfo web site, offering up some great web map cartography that shows every public parks and protected open space in California, along with nifty integration of Google Maps API and Open Street Map data, Google Earth overlays, multiple search tools and more.
ParkInfo.org Map Parks
Full information on Parks, Campground at a click of a button.

ParkInfo uses the California Protected Areas Database (CPAD), a comprehensive and highly accurate GIS data set of everything from neighborhood tot lots to vast federal wilderness areas, almost all mapped to official property ownership boundaries. GreenInfo Network, which works for public interest groups on a wide range of GIS and information technology projects, maintains the 49 million acre, 15,000 unit CPAD database. CPAD is available for non-commercial use at www.calands.org , and has been developed with ESRI ArcGIS software.

The web site features the CPAD lands that are open to public use (some require a permit). The site lets users search near an address, by park or city name, or in a zip code. Search results show as lists and on the map and all parks on the map are clickable with more information - including a direct web link, driving/transit directions (via Google Maps Directions) and a link to Bing's Birdseye view of the site. The web map can also be enlarged to full screen to take advantage of the great cartography.

GreenInfo shifted from using Google's Streets view to its own custom MapView, which features 10 meter DEM data in an attractive hillshade and well-styled Open Street Map streets. When fully zoomed in, users also see contour lines. In addition to Satellite view, users can also easily browse all the ParkInfo data using the Google Earth plugin. ParkInfo also has all public campgrounds in the state and a selection of Open Street Map trails.
ParkInfo.org TopOSM Map
TopOSM terrain tiles have been used to show relief in 2D view for ParksInfo.org

Map tiles were created using the TopOSM scripts and rendering process created by Lars Ahlzen see http://toposm.com/usw/ for example. Areas, streets and labels are rendered using Mapnik. PostgreSQL with the PostGIS extension provides the spatial query capabilities for ParkInfo while a MapServer Web Map Service (WMS) GetFeatureInfo request returns park details when a user clicks on a park.

View the Map in 2D and 3D - http://www.parkinfo.org/

ParkInfo can be adapted into other organizations and agencies' web sites, allowing them to offer full search of public recreational opportunities. The State of California Department of Parks and Recreation has already done so at http://Findrecreation.parks.ca.gov

Composed by Larry Orman from http://www.greeninfo.org/ with thanks from Mapperz
GreenInfo is exploring an API as well as expanding ParkInfo to other U.S. states. Contact them at: parkinfo@greeninfo.org

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09 September 2009

New Canadian Toporama WMS service - Examples

New Canadian Toporama WMS service - Examples

update:12/09/2009

Geospatial provides a little more information on ftp access {bulk downloads} to map data.
http://geospatial.blogs.com/geospatial/2009/09/nrcan-wms-service-for-canadian-vector-topo-maps.html


new link:
http://tinyurl.com/nuseox
(newer code)

WMS [Web Mapping Service]
is not new - in GIS and Technology terms is old.
But there are plenty of services, organisations, governments out there that do serve their content via this format.

So why this post - Well there was a Google Maps API Thread that was becoming very interesting:
"mentionned last week that canadian topo maps (NRCAN) are of poor quality. This is true. But a new service have been implemented in may by NRCAN to replace it. It seems this introduction passed unnoticed so far. I myself searched for a long time and to find information about this new service. NRCAN has introduced in may the Toporama WMS service. This gives access to the new CANTOPO, the new generation of Topographic Maps (1 :50,000) produced by NRCAN. Theses maps are in vector format. The availability of this new vector format for canadian topo maps gives us more precision and clarity as compared to the old Raster Maps format who where a scan of the Paper Maps. Texts describing rivers and local points of interest do not anymore collapse when zooming to lower levels. The map is also of higher quality at higher zoom level. And
the information shown on the maps is adapted to the zoom levels. "
PierreB

Then the talented google map api programmer PapaBear picked up on this and quickly developed this:
Canada Vector WMS Maps - Service - Google Map Mashup
the new generation of Topographic Maps from CANTOPO
The quality and content from this dataset is rich in detail, contours, very small lakes, buildings, rail road etc

Though the full credit goes to PapaBear for the example and PierreB for thier knowledge and skills to put this together in a very short space of time.

"This map is of a station (survey marker) very near the border in
Maine. It should open with USGS topo map type. These topos usually
overlap the border and show a short distance into Canada (usually to
the next 7.5 or 15 minutes of longitide, depending on the scale).

The map type is changed with the selector in the upper right. I have
kept the old raster version from NR canada (type "CanRas") as well as
the new vector maps (type "CanVec").

You can compare the USGS topos and the 2 Canadian types for the same
locale. The USGS map tiles are also raster data (and these have been
know to have missing areas and occasional mis-registration) but they
are higher resolution scans than the old NR Canada tiles..

The topography is not too interesting, since it's a swampy area, but
nevertheless the different map type are all visible. "

If you want to see a working example then go to:
http://members.bellatlantic.net/~vze2h6gy/papabear/BM_Station_GMap.html#FILE=Maine_Peaks.js&index=QF1769&title=1&width=960&height=720&showrm=1

{note: this is a testing environment and change be moved or changed without notice}

But hopefully users will be impressed with the resources and hopefully make use of the wms services still out there.

Well done.

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17 March 2007

WMS & WFS Google Maps + KML

Oxford Archaeology opened up their data with a Web Mapping Service

Online Archaeology
has a good couple articles on both services. In summary here:
  • Web Mapping Service (WMS) produces maps of spatially referenced data dynamically from geographic information.
wms service in google maps online archeology
Live link for WMS
http://www.online-archaeology.co.uk/GoogleMap/Pages/oa.htm


  • Web Feature Service (WFS) is an interface allowing requests for geographical features across the web using platform-independent call.
wfs service in google maps
Live Link for WFS
http://www.andrewlarcombe.co.uk/index.php/oa


The future of Web Features/Map Services?
These services will have to make room for the KML (Keyhole Markup Langauge) format that seems to becoming a standard in its own right.

And the inclusion of this 'GGeoXML' integrating kml format with Google Maps API
hinted on the Google Maps API group in the next version of the API (2.76) has great potential in making thousands of features available to view to the world.
When available will have a post here on the mapperz blog about it.






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