Hi Sam, I just updated the affected area using LIO WMS to trace from. Incidentally, LIO matches up with Google imagery fairly well.
Bob On 10/25/2010 12:40 AM, Sam Vekemans wrote: > Hi, > Yes. Thats most likely correct. This happens across the country > along the NTS border lines. > You might want to check the GeoBaseNHN data, as it could be better. > (since its organized in water basins)[1] > > Then we can go 1 level deeper, into the Land Information Ontario > dataset. A WMS layer is available [2] as well as the source shp > files. (I do have direct access to it (via a data warehouse loginID) > > [1] > wms layer for JOSM (found on this page > http://wiki.openstreetmap.org/wiki/Geobase/NHN_-_OSM_Map_Feature) > http://wms.cits.rncan.gc.ca/cgi/wms_en.cgi?map=/export/wms/mapfiles/rhn/geobase_rhn.map&version=1.1.1&service=WMS&request=Getmap&layer=HYDRO_AGGREGAT&format=image/png&STYLE=default&layers=GEOBASE_RHN_NHN&; > > [2] > http://wiki.openstreetmap.org/wiki/Land_Information_Ontario#Data_Access_-_WMS_Layers > You'll have to dig... i'm not exactly sure where the river WMS is.. > but i do remember seeing it. The Ontario servers are considerably > slower than NRCan, so you'll need to be patient :) > > You might want to try using Merkaartor, as it can handle WMS layers > alot better. > http://wiki.openstreetmap.org/wiki/Merkaartor > > Cheers, > Sam > > P.S. great to hear from another Ibycus Topo user :) One of my > projects is to make a better version of it, now that more data is > available. I don't know if Dale Atkin is planning on doing the same > at some point. > > > --- > Across Canada Trails - Beyond 2017 - The National Trails Network > Victoria, BC Canada > > Twitter: @Acrosscanada > Blog: http://acrosscanadatrails.posterous.com/ > Facebook: http://www.facebook.com/sam.vekemans > Skype: 'Sam Vekemans' > IRC: irc://irc.oftc.net #osm-ca Canadian OSM channel (an open chat room) > IRC: irc://irc.oftc.net #CommonMap The Common Map channel (an open chat room) > > > > On Sun, Oct 24, 2010 at 2:16 PM, Gordon Dewis <[email protected]> wrote: >> Interesting. I wonder if it's an artefact left over after the NAD27->NAD83 >> conversion. >> >> --Gordon >> -----Original Message----- >> From: Bob Dustan <[email protected]> >> Sender: [email protected] >> Date: Sun, 24 Oct 2010 14:30:45 >> To: talk-ca<[email protected]> >> Subject: [Talk-ca] Map Error >> >> Hi, >> >> I was importing CanVec data for 031E07 and noticed what appears to be an >> error in the map. A section of the Oxtongue River seems to be repeated >> nearby in 031E06. In OSM you can see it at: >> >> http://www.openstreetmap.org/?mlat=45.317&mlon=-79.0&zoom=15&layers=M >> >> If you use JOSM or Merkaator to view this area and enable the NRCan WMS, >> you'll see that the error is also in the WMS version of the map. >> >> The error also appears in "The Atlas of Canada" (Toporama) web site at: >> >> http://atlas.nrcan.gc.ca/site/english/maps/topo/map?layers=nodata_ntdb_50k%20north_arrow%20other_features%20million_grid%20t50k_grid%20grid_50k_3%20roads%20hydrography%20boundary%20builtup%20vegetation%20populated_places%20railway%20power_network%20manmade_features%20designated_areas%20water_features%20water_saturated_soils%20relief%20contours%20toponymy%20contour&scale=1400000.000000&mapxy=1281552.5697346777%20-273673.4692181579&map_layer[northarrow]_class[0]_style[0]=ANGLE%20-14.587661326428645&mapsize=750%20666&urlappend= >> >> The error also appears in the Ibycus map. >> >> Also, if you look north along the boundary between these 2 map sections, >> you will see other discrepancies. >> >> I have topo maps of the area that I bought at least 10 years ago. They >> appear to be scans of paper maps. When I line up the 2 map sections, >> everything lines up (roads, rivers, elevation lines, etc.). >> >> It seems to me that some errors (albeit fairly minor) were introduced in >> the digital form of the map. Then the errors were propagated to CanVec. >> >> Is there a way to get the map corrected? >> >> Bob >> >> _______________________________________________ >> Talk-ca mailing list >> [email protected] >> http://lists.openstreetmap.org/listinfo/talk-ca >> _______________________________________________ >> Talk-ca mailing list >> [email protected] >> http://lists.openstreetmap.org/listinfo/talk-ca >> _______________________________________________ Talk-ca mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ca
