search

njam / citygml-to-3dtiles

Convert from CityGML to Cesium 3D Tiles.
Apache License 2.0
160 stars 41 forks source link

How to use the API? #17

Closed WBB97 closed 3 years ago

WBB97 commented 3 years ago

hello, i am a green hand to javascript, can you show me more detail about how to use the api? I tried to use the webpack to convert the es6 to es5,but it throws lots of error. Does that make sense? Looking forward to your reply. thank you!!!

njam commented 3 years ago

@WBB97 are you trying to use the API in the browser or with NodeJS? Why do you convert from es6 to es5?

WBB97 commented 3 years ago

@njam Thanks for your reply. Yes, i'm planning to run the code in the browser.After the tries, i solved most of the errors which were caused by the webpack.config.js. I 'm still leaning and trying. By the way, any idea of converting huge citygml data to 3dtiles? Maybe to constructl hierarchical spatial data by adding the octree functions etc(learned from the 3d-tiles-overview.pdf )? Thank you again for your reply! ^_^

njam commented 3 years ago

Yes, i'm planning to run the code in the browser.After the tries, i solved most of the errors which were caused by the webpack.config.js.

Interesting! I haven't tried it, but I guess it should work.

any idea of converting huge citygml data to 3dtiles? Maybe to constructl hierarchical spatial data by adding the octree functions etc(learned from the 3d-tiles-overview.pdf )?

I think there are two parts to it, A) Streaming the input XML, and B) Batching the 3DTiles output data, and possibly stitching it together in the end.

Currently the file size is limited by the maximum size of NodeJS' Buffer, which is 2GB. For working sets that fit into memory, another way could be to use another data structure which can hold more data.

WBB97 commented 3 years ago

@njam ok, thanks for your reply.