[Talk-ca] Fredericton WMS Offset

nicholas ingalls nicholas.ingalls at gmail.com
Tue Jan 1 23:22:44 GMT 2013


Hello all,

I've been recently drawing all of the buildings in Fredericton in
preparation for going around and collecting the addresses. I'd noticed that
all the buildings in Fredericton were offset. Naturally I assumed that
the original mappers in Fredericton had done this offset on purpose. I
recently tested this against GPS traces and found that the offset was
incorrect based on the traces I collected. I'm now assuming that this data
was traced from the old Yahoo imagery and current users continue to offset
the Bing WMS to match the data traced from the Yahoo imagery.

I am proposing that we shift the data back to match the Bing WMS and the
gps traces. Does anyone else from the Fredericton area have any comments,
or can explain the offset?

Cheers,
ingalls
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