Details:
The MapPlace Lite WMS Viewer with Web Map Service (WMS) requests is
available at:
http://webmap.em.gov.bc.ca/mapplacewms/wmsviewer.htm. This Open
Geospatial Consortium Inc. (OGC) compliant application will access most of the
geospatial data that MapPlace.ca offers, such as BC Geology, Mineral
Occurrences, Assessment Reports, Mineral Tenure, without the use of the
MapGuide Viewer. The URL address for
the WMS service, which can
be used in other WMS compliant viewers,
is:
http://webmap.em.gov.bc.ca/liteview6.5/servlet/MapGuideLiteView.
To obtain
information about the MapPlace WMS and the layers of data available, users
may use the GetCapabilities request in order to generate and download an
XML document containing WMS and Layer specifications. Detailed Layer
information, including projections and scale dependencies can be viewed
with the GetCapabilities URL request:
http://webmap.em.gov.bc.ca/liteview6.5/servlet/MapGuideLiteView?VERSION=1.1.1&Request=GetCapabilities.
This Capabilities document can be opened with Internet Explorer or you can
view this
XML Version. Some of the layers are scale dependant, such as the
geology layers which are set to display below 1:1.5M scale. Layers
are available as single layers and as groups of layers. The BC Geology
Layer group includes several scale-dependant layers, such as Terranes,
rock types, labels, contacts and faults, mineral occurrences and
assessment reports. The Base Map Layer group includes the BC border,
map grids, UTM grid, rivers and lakes. The BC Administrative Layer
group includes mineral titles, parks, mining regions, cummunities and
cities. Visible Layers will be displayed in the order listed.
Thus move the layer to the bottom of the list if not visible. Use
Get Map to refresh the layers.
View MapPlace Lite WMS Application
The MapPlace Lite WMS Viewer
does not allow adding multiple servers and may not handle requests from some
map servers.
The Land Information BC OGC Web Map Service http://openmaps.gov.bc.ca
provides these layer groups:
We have had some success
using our server with other viewers, such as
Manifold
and ArcExplorer Webservices. However
use of the Identity tool to get feature attributes in these viewers
appears problematic. There
may be some differences between the different viewers which will make the
info tools fail.
To
produce a map or to request specific map layers from the MapPlace WMS, a
user or developer will have to form a parameterized URL. The URL must
contain VERSION, REQUEST, SRS, BBOX, WIDTH, HEIGHT, LAYERS, STYLES and
FORMAT. The details and specifics of how the URL parameters function
are available on-line:
http://www.opengeospatial.org. An example of a GetMap URL request:
http://webmap.em.gov.bc.ca/liteview6.5/servlet/MapGuideLiteView?REQUEST=GetMap&VERSION=1.1.1&BBOX=-121.4781,50.604,
-121.1083,50.789&WIDTH=900&HEIGHT=450&STYLES=&SRS=EPSG:4326&LAYERS=BCGS_OGC_GEOLOGY.MWF&FORMAT=image/png.
More
detailed specifications can be found in the MapGuide LitevView Developers
Guide at
http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id=3164777.
We would like to
acknowledge Pacific Alliance Technologies
for setting up our WMS service and Colin Ferster, our co-op student, for
fine tuning the application, including layer configuration and button
additions.
OGC & WMS Links:
