<html><body><div style="color:#000; background-color:#fff; font-family:Courier New, courier, monaco, monospace, sans-serif;font-size:10pt"><div><br><font face="Arial" size="2"><b><span style="font-weight:bold;">>>>> De :</span></b> Lester Caine <lester@lsces.co.uk></font></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br><font face="Arial" size="2"><b><span style="font-weight:bold;">>>>> </span></b></font>Sees the light :)</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><span>Great !</span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style:
normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><font face="Arial" size="2"><b><span style="font-weight:bold;">>>>> </span></b></font>SO while we have this type of raster data from as a background in
potlatch and josm and some elements of it in vector files from OS and
other sources. You are having to stitch together 'pictures' and then
your 'automatic processing' is recreating vector data from the
'pictures'?</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;">I don`t know all details but yes this is something like that<br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><font face="Arial" size="2"><b><span style="font-weight:bold;">>>>> </span></b></font>I understand the problems now ... and it only really works because the pictures can be
simply vectorised.</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;">yes has pdf is vectorised but if i rember well what you see as a simple yellow rectangle is an overlay of different rectangle inside pdf code explaining partly why we have some geomtry problems with contigous buildings.<br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><font face="Arial"
size="2"><b><span style="font-weight:bold;">>>>> </span></b></font>SO I would be asking if the 'pictures' can be merged to create a single
raster overlay for France to use as a background 'source' which could
potentially be used to trace from, but can be used in conjunction with
BING imagery to corss check?</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;">The French cadastre licence doesn't allow us to redistribute cadastre data as they are so I think it is not legally possible to do that.</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;">The other issue is related to projection : Mercator for Bing and Lambert 9 zones for French cadastre. In addition to that not all the french cities have vectorised cadastre data. There are still a lot of cities which have raster data that are just scan of cadaster paper plan without georeferencing ( Feurs in 42-Loire by example )<br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier
New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><font face="Arial" size="2"><b><span style="font-weight:bold;">>>>> </span></b></font>I would classify that as my base import
since it's not externally available? We have several versions of the OS
data along with the historic maps for the UK, and I feel sure that
should be achievable in France as well?</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;">I don't know if some people are interested in historic maps or such kind of map aspects in french community<br><br><font face="Arial" size="2"><b><span style="font-weight:bold;">>>>> </span></b></font>The vectorised files are
the 'staging layer' and I'm sure that since you are providing each
building as a shape then in the future it should be possible to maintain
a 'building_id' that can be used with the sort of merge tools I am
looking for to handle this type of data?</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;">We have a tool called "bati fusion" that try to perfom a diff between OSM files to make merging easier by using building shape comparison I think but I don`t know if it is massively used. I personnally know the guy who developped it if you are interested</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;">Cheers</div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif;
background-color: transparent; font-style: normal;">Julien<br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br></div><div style="color: rgb(0, 0, 0); font-size: 13.3333px; font-family: Courier New,courier,monaco,monospace,sans-serif; background-color: transparent; font-style: normal;"><br> <blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"><div style="font-family: Courier New, courier, monaco, monospace, sans-serif; font-size: 10pt;"> </div> </blockquote></div> </div></body></html>