Re: [Talk-ca] Building Import

Hi All, I like the idea of imports, and think there's a lot of value of batch importing - however we need to run a QA/AC for each. For Manitoba I think the challenge is getting municipalities to sign on, and move their data to the canadian open data portal (that is, if they have data or any

Re: [Talk-ca] Building Import

Cette discussion sur gis.stackexchange donne le lien vers OpenCarto sur Sourceforge et vers un document décrivant la méthode.https://gis.stackexchange.com/questions/25263/is-there-any-open-source-building-squaring-tool Avec les fonctions PostGIS, à voir comment ST_ShortestLine ou fonction

Re: [Talk-ca] Building Import

Bonjour Tim Mon outil d'analyse Qualité dont les données sont publiées sur OpenDataLabRDC est basé sur PostgreSQL-Postgis.   Je suis à nettoyer / documenter le code et prévoit le publier sur github.  J'ai commencé à regarder les outils possibles, mais peu de documentation disponible. On parle

Re: [Talk-ca] Building Import

I sent Daniel a sample of Montreal (Outrement) from the Open Building Database and Daniel's algorithm performed really well. It could reduce the vertices count by 13% without loosing or even improving data quality (as it orthogonalized the buildings). Even difficult buildings were treated well

Re: [Talk-ca] FW: Building Import

Voir https://github.com/opendatalabrdc/Documentation/tree/master/topology où nous avons entreposé des fichiers geojson du projet de OpenDatalabRDC pour consultation.voir par

Re: [Talk-ca] FW: Building Import

Screenshots? A good idea for having everyone seeing the results over complicated polygons (I will try keep objective in my selection ;-) I am working to get it right on multiple adjacent polygons. I'll make the results available after I got them. Daniel -Original Message- From: Jarek

Re: [Talk-ca] Building Import

At least it is an indication of interest. Thanks John On Tue, Mar 26, 2019, 4:57 PM Darren Wiebe, wrote: > I'm from rural Alberta close to Lloydminster. The building import is > something that interests me and would be useful in my area but I haven't > been very actively mapping over the last

Re: [Talk-ca] Building Import

I'm from rural Alberta close to Lloydminster. The building import is something that interests me and would be useful in my area but I haven't been very actively mapping over the last year or two. Hopefully there are Alberta mappers on here who are much more active than I have been. Darren Wiebe

[Talk-ca] FW: Building Import

As usual, missed the reply all … From: jfd...@hotmail.com Sent: Tuesday, March 26, 2019 16:26 To: 'John Whelan' Subject: RE: [Talk-ca] Building Import It is really kind to consider my background ;-) You are right regarding the "black box" approach; this is why a large approval from the

Re: [Talk-ca] Building Import

I think my concerns are to do with the "black box" approach.  Knowing your background I trust your work but others might not. On a technical side I get the impression that cites with buildings that are close to each other are problematical.  I assume that small locations with a population of

Re: [Talk-ca] Building Import

Voici les observations que j'ai fait à Daniel a partir des données du premier test qu'il a effectué pour Toronto. Un premier examen visuel pour le BBOX utilisé montre que l'outil a produit correctement les formes orthogonales en général. J'ai constaté cependant des cas où un des angles

Re: [Talk-ca] Building Import

Jarek, The area you proposed in quite interesting and will force me to look further at buildings with sharing edges, a concern Pierre also had. I'll be back soon with your area processed. Daniel -Original Message- From: Begin Daniel [mailto:jfd...@hotmail.com] Sent: Tuesday, March 26,

Re: [Talk-ca] Building Import

Jarek, Since it is a one-time process, I expect to be able to process the files if the community feels comfortable with it. In the meantime, people are welcome to send me the bounding box of an area they would like to examine. Daniel -Original Message- From: Jarek Piórkowski

Re: [Talk-ca] Building Import

On Tue, 26 Mar 2019 at 13:10, Begin Daniel wrote: > There is actually no standard “code” available since I use FME > (www.safe.com). It is a proprietary ETL application and all operations are > done using “transformers” (https://www.safe.com/transformers/). I can provide > you with the

Re: [Talk-ca] Building Import

If you could share the workbench it would be greatly appreciated. Thanks On Tue., Mar. 26, 2019, 1:11 p.m. Begin Daniel, wrote: > Hi Jarek, > There is actually no standard “code” available since I use FME ( > www.safe.com). It is a proprietary ETL application and all operations are > done

Re: [Talk-ca] Building Import

Hi Jarek, There is actually no standard “code” available since I use FME (www.safe.com). It is a proprietary ETL application and all operations are done using “transformers” (https://www.safe.com/transformers/). I can provide you with the workbench I developed (a bunch of linked transformers)

Re: [Talk-ca] Building Import

On Tue, 26 Mar 2019 at 11:58, Begin Daniel wrote: > a first version of the cleaning tool is now functional. > > At this point, the tool is built to remove extra vertices, orthogonalize > building footprints (when possible) and identify overlapped geometries. > Details about the application are

Re: [Talk-ca] Building Import

Hi all, a first version of the cleaning tool is now functional. At this point, the tool is built to remove extra vertices, orthogonalize building footprints (when possible) and identify overlapped geometries. Details about the application are found in Canada Building Import discussion page ...