Re: [Talk-us] Lot boundaries
On Wed, Oct 14, 2009 at 8:35 PM, Alan Mintz > wrote: > At 2009-10-14 17:14, Dale Puch wrote:Yup. I describe the OSM project and > then specifically what I want to do. I'm concerned, though, that the answer > I sometimes get is from someone that may not be qualified or allowed to give > the answer. Is there a more formal form-letter that is used by OSM as a > whole? Should there be? > > -- > Alan Mintz > Yea there should be a form letter explaining OSM and licensing concerns when asking about copyright. I would suggest it be looked over by a lawyer if possible to make sure the bases are covered. There should also be a formal place to store the reply with how to get the data it specifically allows us to use. More than just "potential data sources" on the wiki, the reply should be reviewed prior to being posted. Then an approved data sources page made with perhaps limited edit access. -- Dale Puch ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
On Wed, Oct 14, 2009 at 7:20 PM, Dave Hansen wrote: > I noticed that when Google rev'd their maps, they also magically got lot > lines when you zoom in. > > http://maps.google.com/?ll=44.952442,-123.027169&spn=0.001619,0.002044&z=19 > > Would using those kind of data be better than using the TIGER data for > addressing? Any idea how Google got those data? > > -- Dave The parcel lot data is spotty, with it in Google Maps for some jurisdictions and not others. Here, there is parcel data for Washington DC, which is very open with their data. There is no parcel data for the bordering jurisdictions in Maryland, including Montgomery County and Prince George's County. Both are very restrictive with their data. In Virginia, Arlington County, Alexandria, and Falls Church provided parcel data to Google, whereas Fairfax County did not. http://bit.ly/KNcdL (DC and Montgomery County) http://bit.ly/fjNor (Falls Church, VA and Fairfax County) I take this as a cue to know which jurisdictions might be more willing to allow their data to be used in OpenStreetMap. -Kate > > > ___ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us > ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
some counties have detailed parcel data and even building outlines with adress data. someone imported a nice example in Mono county http://www.openstreetmap.org/?lat=37.645611&lon=-118.975286&zoom=18&layers=B000FTF but some buildings have only dummy adress and are 0. other counties offer data too like Santa Cruz and Google used the parcel data. But the data contains many errors and isn't worth to import. It's always a case to case decision what is best -- apo On Wed, Oct 14, 2009 at 4:20 PM, Dave Hansen wrote: > I noticed that when Google rev'd their maps, they also magically got lot > lines when you zoom in. > > http://maps.google.com/?ll=44.952442,-123.027169&spn=0.001619,0.002044&z=19 > > Would using those kind of data be better than using the TIGER data for > addressing? Any idea how Google got those data? > > -- Dave > > > ___ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us > ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
On Wed, Oct 14, 2009 at 8:35 PM, Alan Mintz wrote: > At 2009-10-14 17:14, Dale Puch wrote: > > Yep, check the property appraiser office for the county, Usually the only > original source for such data. > For my county http://paraster.ocpafl.org/Webmap2/default.aspx Be sure to > check out the 6" per pixel aerial view as well as birds eye, and links to > google street view and MS live maps > > This has to be _the_ best app I've seen, no question. It's way fast, renders > all sorts of data at the same time in a way that works, has great hi-res > imagery, pics of the properties, everything. Looks like tax dollars were > spent well here! It looks like the parcel data is being sold. However, the address points are at ftp://ftp.onetgov.net/divisions/Infomap/pub/GIS_Downloads/Addressing/ . More goodies are at http://www.orangecountyfl.net/cms/dept/growth/maps/ftpdownloadgis.htm I can't find whether or not there are any redistribution restrictions. If not, and anyone needs technical help with the import, send me an email. Make sure you change the projection. Other than that it's pretty straightforward. Dealing with point data will be a lot easier than the mess I have dealing with multipolygons :). ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
On Wed, Oct 14, 2009 at 04:20:46PM -0700, Dave Hansen wrote: > I noticed that when Google rev'd their maps, they also magically got lot > lines when you zoom in. > > http://maps.google.com/?ll=44.952442,-123.027169&spn=0.001619,0.002044&z=19 > > Would using those kind of data be better than using the TIGER data for > addressing? Any idea how Google got those data? About 75% of the municpalities in Massachusetts have that data online via MassGIS. Regards, -- Christopher Schmidt MetaCarta ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
At 2009-10-14 17:14, Dale Puch wrote: Yep, check the property appraiser office for the county, Usually the only original source for such data. For my county http://paraster.ocpafl.org/Webmap2/default.aspx Be sure to check out the 6" per pixel aerial view as well as birds eye, and links to google street view and MS live maps This has to be _the_ best app I've seen, no question. It's way fast, renders all sorts of data at the same time in a way that works, has great hi-res imagery, pics of the properties, everything. Looks like tax dollars were spent well here! Some counties are a lot more free with their data, even if all will let you view it. Do not mistake being able to use (or even buy/download) the data with letting you copy and reuse it. Specifically ask. Yup. I describe the OSM project and then specifically what I want to do. I'm concerned, though, that the answer I sometimes get is from someone that may not be qualified or allowed to give the answer. Is there a more formal form-letter that is used by OSM as a whole? Should there be? -- Alan Mintz ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
I did not see the property lines on google either. Yep, check the property appraiser office for the county, Usually the only original source for such data. For my county http://paraster.ocpafl.org/Webmap2/default.aspx Be sure to check out the 6" per pixel aerial view as well as birds eye, and links to google street view and MS live maps Some counties are a lot more free with their data, even if all will let you view it. Do not mistake being able to use (or even buy/download) the data with letting you copy and reuse it. Specifically ask. Dale On Wed, Oct 14, 2009 at 7:38 PM, Alan Mintz > wrote: > At 2009-10-14 16:20, Dave Hansen wrote: > >I noticed that when Google rev'd their maps, they also magically got lot > >lines when you zoom in. > > > > > http://maps.google.com/?ll=44.952442,-123.027169&spn=0.001619,0.002044&z=19 > > I'm not seeing that, but... > > > >Would using those kind of data be better than using the TIGER data for > >addressing? Any idea how Google got those data? > > In my area, some cities and counties have GIS apps that you can use to see > those boundaries. I've asked and had confirmed, for example, that I can use > the lot lines shown in Riverside County Land Information System ( > http://www3.tlma.co.riverside.ca.us/pa/rclis/viewer.htm ). This, of > course, > is a manual process, and I don't see the need to use it for house parcels, > but find it useful to outline the area of large farms and commercial > parcels. > > The city of Rancho Cucamonga is similar ( > http://gis.cityofrc.us/myneighborhood/ ). > > San Bernardino County (the largest in the country, BTW) has shapefiles > available. I haven't approached them yet on copyright status. > > The information presented in these sites is certainly public - I don't know > if a direct import crosses a line, though. Any thoughts on how to approach > this with them? I also don't think it's necessarily useful to bring in > individual residential housing parcel boundaries, though it's nice to be > able to mark the addresses of all the corners (usually with a node at their > driveways). > > > -- > Alan Mintz > > > ___ > Talk-us mailing list > Talk-us@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk-us > -- Dale Puch ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
On Wed, Oct 14, 2009 at 7:38 PM, Alan Mintz wrote: > At 2009-10-14 16:20, Dave Hansen wrote: >>I noticed that when Google rev'd their maps, they also magically got lot >>lines when you zoom in. >> >>http://maps.google.com/?ll=44.952442,-123.027169&spn=0.001619,0.002044&z=19 > > I'm not seeing that, but... You have to switch to "map mode" instead of "satellite mode". >>Would using those kind of data be better than using the TIGER data for >>addressing? The parcel data may or may not include address information. >> Any idea how Google got those data? The data they have on my county in Florida looks identical to what I downloaded from the county property appraiser (in shapefile format). There is address information, but only one address per lot, so the address information is basically only good for single family residences and small businesses. In combination with the Tiger data, it might be quite useful, though. I'm working on getting the data ready to import. An agreed upon methodology for tagging this sort of thing would be helpful :). > I also don't think it's necessarily useful to bring in > individual residential housing parcel boundaries, though it's nice to be > able to mark the addresses of all the corners (usually with a node at their > driveways). Personally I don't have the location of the driveways. All I have is the outline of the parcel. So that's what I'm going to tag - the parcel. ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
At 2009-10-14 16:20, Dave Hansen wrote: >I noticed that when Google rev'd their maps, they also magically got lot >lines when you zoom in. > >http://maps.google.com/?ll=44.952442,-123.027169&spn=0.001619,0.002044&z=19 I'm not seeing that, but... >Would using those kind of data be better than using the TIGER data for >addressing? Any idea how Google got those data? In my area, some cities and counties have GIS apps that you can use to see those boundaries. I've asked and had confirmed, for example, that I can use the lot lines shown in Riverside County Land Information System ( http://www3.tlma.co.riverside.ca.us/pa/rclis/viewer.htm ). This, of course, is a manual process, and I don't see the need to use it for house parcels, but find it useful to outline the area of large farms and commercial parcels. The city of Rancho Cucamonga is similar ( http://gis.cityofrc.us/myneighborhood/ ). San Bernardino County (the largest in the country, BTW) has shapefiles available. I haven't approached them yet on copyright status. The information presented in these sites is certainly public - I don't know if a direct import crosses a line, though. Any thoughts on how to approach this with them? I also don't think it's necessarily useful to bring in individual residential housing parcel boundaries, though it's nice to be able to mark the addresses of all the corners (usually with a node at their driveways). -- Alan Mintz ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Lot boundaries
On Wed, Oct 14, 2009 at 6:20 PM, Dave Hansen wrote: > I noticed that when Google rev'd their maps, they also magically got lot > lines when you zoom in. > > http://maps.google.com/?ll=44.952442,-123.027169&spn=0.001619,0.002044&z=19 > > Would using those kind of data be better than using the TIGER data for > addressing? Any idea how Google got those data? Last I heard, they went and talked to municipalities across the country and gave away Google Earth Pro licenses in return for all the data the municipality had. See comments to this: http://www.spatiallyadjusted.com/2009/10/12/the-old-google-mind-trick/ ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
[Talk-us] Lot boundaries
I noticed that when Google rev'd their maps, they also magically got lot lines when you zoom in. http://maps.google.com/?ll=44.952442,-123.027169&spn=0.001619,0.002044&z=19 Would using those kind of data be better than using the TIGER data for addressing? Any idea how Google got those data? -- Dave ___ Talk-us mailing list Talk-us@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk-us
