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hypertidy / vapour

GDAL API package for R
https://hypertidy.github.io/vapour/
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vapour_vrt() needs an overview picker #186

Closed mdsumner closed 1 year ago

mdsumner commented 1 year ago

set a level, a resolution, or a dimension

Use this: 

url <- "https://services.ga.gov.au/gis/rest/services/Topographic_Base_Map/MapServer/WMTS/1.0.0/WMTSCapabilities.xml,layer=Topographic_Base_Map,tilematrixset=default028mm"
dsn <- sprintf("WMTS:%s,layer=Topographic_Base_Map,tilematrixset=default028mm", url)
info <- vapour::vapour_raster_info(dsn)
## level 13 is a reasonable size to experiment with
(overviews <- matrix(info$overviews, ncol = 2, byrow = TRUE))

dm <- overviews[13L, , drop = TRUE]

which I'm using in grout.

mdsumner commented 1 year ago

done in https://github.com/hypertidy/vapour/commit/de37ebf247f9ddfdfa3db1c054b0627bc824cca5