OpenStreetMap

Representing San Francisco City Hall in simple 3D building

Posted by Chetan_Gowda on 22 May 2017 in English (English)

Last weekend, I tried modelling San Francisco City Hall in S3DB. The public building has 100 years of glorious history. The diameter of the central dome is around 34 m and total height of the building is 93 m. From Wikipedia

The co-ordinates of the building is 37.77910°N/122.41937°W. Edited this model first through OSM Sandbox and copied all the geometries and tags to main OSM database. I used JOSM current version and Kendzi3D plugin to visualise locally.

Before Simple 3D tags

before_in_kendzi Visualised in JOSM Kendzi3D plugin

After adding Simple 3D tags

Photo credits: At Flickr by Thomas Hawk

globe

after_in_kendzi

Rendering

1. F4Map f4map Click here for demo

2. OSMBuildings osmbuildings Click here for demo

I’d love to see many places in OpenStreetMap in 3D. If you have any questions, ping me @chtnha on twitter or OSM message.

Comment from ika-chan! on 22 May 2017 at 16:06

This is pretty impressive, but I wonder which renderers support multiple balconies over many floors, in the same location, as in those in tower blocks in London?

Comment from PlaneMad on 22 May 2017 at 19:25

Very cool output! How long does it take to model a building of this complexity?

Comment from Chetan_Gowda on 23 May 2017 at 06:40

@ika-chan! can you point me any links to blocks in London? I’d love to see their structures.

@planemad, As it was a weekend project, I dedicated merely 3-4 hours in modelling and understanding tags, relations, and rendering both in F4Map and OSMBuildings.

Comment from umbrek on 24 May 2017 at 07:20

Wow super zrobione budynki w 3d :-)

Comment from ashleyannmathew on 26 May 2017 at 04:16

Looks great! I am very interested in learning about modeling 3D buildings @Chetan_Gowda

Comment from Chetan_Gowda on 26 May 2017 at 11:36

@ika-chan! Thanks for pointing. I looked for these buildings pictures, they are tall and good to map in 3D. One important thing missing is Mapillary coverage around them or Wikipedia pages.

@umbrek Thank you!

@ashleyannmathew amazing! Please look into Simple 3D buildings wiki to get an idea.

Comment from Karthoo on 27 May 2017 at 20:52

Hey, I recently 3D-mapped the curch of Santa Maria Maggiore in Rome. It was my first larger 3D building and it seemed not very hard to model it for me. I hope other people will also add 3D models to some important landmarks which are still flat on the maps. :) http://demo.f4map.com/#lat=41.8974814&lon=12.4983324&zoom=19&camera.theta=45.05&camera.phi=-115.268

Comment from Chetan_Gowda on 28 May 2017 at 08:38

That looks amazing @doktorpixel14. It’d be very nice to see the Church with roof or building colour.

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