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What we learned when a user tried to load a 1 GB GML file in a browser

20 points by twainyoung

by haburka

2 subcomments

I can’t handle reading articles that seem to be AI assisted text. It is incredibly grating. I wish HN had an AI filter or something.

by ghrl

0 subcomment

What shines through here is that the AI writing / reasoning this is about as lazy as always, declaring a hard limitation where some engineering might solve or work around the limitations. In modern JavaScript a surprising amount of tasks can be handled, e.g. with Workers and in a streaming way.

by lukasbm

0 subcomment

by pixelesque

0 subcomment

> ”But Desktop GIS Can Handle It” — No, It Can’t
I feel this is a little disingenuous, especially given it then says QGIS takes ~10 mins to open the same file and then doesn't give a time for ArcGIS.
As much as I have respect for QGIS and what it's capable of (especially given its price point!), it's not always that fast: I recently looked into why drawing polygons interactively was so insanely slow (with the help of perf on Linux) in QGIS, and the code was basically suffering from 'painters algorithm' and is just a really inefficient implementation with loads of redraw and 'find-nearest-point' overhead.
I wouldn't be surprised (as another example: until recent releases, Blender's OBJ format importer was similarly orders of magnitude slower than other DCC apps OBJ importers - e.g. it would take > 2 hours to import a large .obj file other apps could ingest fully in under 30 seconds) if the code path just hasn't been looked at and optimised.