Hi Souvik, this is an extremely wonderful script. I just tried this and it seemed to work great in all the different scenarios. Thanks a lot for the help!
On Thursday, May 28, 2020 at 6:18:49 PM UTC+5:30, Souvik Sankar Mitra wrote: > > To download mvt of "Mumbai Existing Land Use" I have written this code. > As the mvt files are stored according to zoom level . I run it from zoom > level 10 to zoom level 21. This stores all mvt files w.r.t zoom level in > different directory. Hope it helps. > > On Wednesday, May 27, 2020 at 6:32:38 PM UTC+5:30, Abhiroop Sarkar wrote: >> >> Hi, can someone help in extracting some data from >> http://www.loginmumbai.org/map.html ? There is a lot of data on here >> regarding Mumbai which can be helpful for further analysis. >> >> I have spent some time on this and from what I saw, all the layers are >> displayed in 2 ways - >> 1. Directly parsing TopoJSON through OpenLayers. >> 2. Loading Vector Tiles (.mvt) through OpenLayers. >> The smaller point and polygon layers are loaded directly whereas the >> heavier polygon and polyline layers are loaded through the vector tiles. >> >> What I am having trouble with is extracting the vector tiles. For >> example, I want the layer under "LandUse and Development Plans" > >> "Mumbai Existing Land Use". Fetching the zoomed out .mvt file and >> loading it in QGIS works but zooming in shows that the edges of the >> polygons are very jagged. Zooming in and then fetching the .mvt file >> produces perfectly clean geometry but only for a small region (only the >> specific tile). >> >> Can someone help in getting such layers in a clean way? One of the ways >> would be to automate the process of panning the zoomed in webmap to >> gradually load the detailed .mvt files and save them automatically upon >> loading, but I lack the coding expertise to implement this. Any and all >> suggestions are welcome. >> >> Thank you. >> > -- Datameet is a community of Data Science enthusiasts in India. Know more about us by visiting http://datameet.org --- You received this message because you are subscribed to the Google Groups "datameet" group. To unsubscribe from this group and stop receiving emails from it, send an email to datameet+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/datameet/8449bd7d-5304-460d-a908-c93622b09e51%40googlegroups.com.
