[Qgis-user] Recognize and apply custom CRS automatically

2021-11-22 Per discussione Rahkonen Jukka (MML)
Hi, I have loads of historical maps which are georeferenced by using ground control points in a few different custom coordinate reference systems. I have saved each CRS into QGIS as custom projections. Everything works otherwise OK but each time when I open the map I must select the CRS of the

Re: [Qgis-user] How make reading from protocol to use /vsicurl_streaming/ instead of /vsicurl/?

2021-09-22 Per discussione Rahkonen Jukka (MML)
the proxy. -Jukka Rahkonen- Lähettäjä: Rahkonen Jukka (MML) Lähetetty: tiistai 21. syyskuuta 2021 14.45 Vastaanottaja: qgis-user@lists.osgeo.org Aihe: Re: [Qgis-user] How make reading from protocol to use /vsicurl_streaming/ instead of /vsicurl/? Hi, I have tried, but that does not work for me

Re: [Qgis-user] How make reading from protocol to use /vsicurl_streaming/ instead of /vsicurl/?

2021-09-21 Per discussione Rahkonen Jukka (MML)
is not a valid or recognized data source. -Jukka- Lähettäjä: Even Rouault Lähetetty: tiistai 21. syyskuuta 2021 13.56 Vastaanottaja: Rahkonen Jukka (MML) ; qgis-user@lists.osgeo.org Aihe: Re: [Qgis-user] How make reading from protocol to use /vsicurl_streaming/ instead of /vsicurl/? Jukka

[Qgis-user] How make reading from protocol to use /vsicurl_streaming/ instead of /vsicurl/?

2021-09-21 Per discussione Rahkonen Jukka (MML)
Hi, This command gives a result with ogrinfo: ogrinfo /vsicurl_streaming/"https://api.digitransit.fi/routing/v1/routers/hsl/isochrone?fromPlace=60.168,24.938=WALK,TRANSIT=2019-11-01=08:00:00=500=1800=3600; -al If I try to use the URI part with QGIS with Add layer - Vector - Protocol -

[Qgis-user] Cannot add cloud optimised GeoTIFF (COG) as raster layer

2021-04-16 Per discussione Rahkonen Jukka (MML)
Hi, I have a DEM file http://latuviitta.kapsi.fi/data/dem10m/dem10.tif on my server. GDAL can access it fine through /vsicurl/ as can be verified with gdalinfo /vsicurl/http://latuviitta.kapsi.fi/data/dem10m/dem10.tif However, I cannot add this URI as a raster layer by using a protocol like in

Re: [Qgis-user] Confusion with ellipsoidal method of $area

2021-01-05 Per discussione Rahkonen Jukka (MML)
: Rahkonen Jukka (MML) ; qgis-user@lists.osgeo.org Aihe: Re: [Qgis-user] Confusion with ellipsoidal method of $area Hi, QGIS is currently built on Proj version 6.3.2-1. If the other libraries are using a spheroid by default, then they use a sphere for speed and not an ellipsoid for precision

Re: [Qgis-user] Confusion with ellipsoidal method of $area

2021-01-05 Per discussione Rahkonen Jukka (MML)
mmikuuta 2021 20.04 Vastaanottaja: Rahkonen Jukka (MML) ; qgis-user@lists.osgeo.org Aihe: Re: [Qgis-user] Confusion with ellipsoidal method of $area Hi, Your method in QGIS is sound. Area is calculated using the wgs84 ellipsoid EPSG 7030. If you reproject to wgs84 zone 35N (I thin

[Qgis-user] Confusion with ellipsoidal method of $area

2021-01-05 Per discussione Rahkonen Jukka (MML)
Hi, I wonder what method QGIS is using when it computes ellipsoidal area with $area function. I made a test with this EPSG:4326 polygon: POLYGON (( 20.13293641 59.95688345, 26.94617837 60.47397663, 29.74782155 62.56499443, 27.45254202 68.7065034, 23.75771765 68.24937206, 25.42698984

[Qgis-user] How to apply own styles to custom vector tiles?

2020-06-24 Per discussione Rahkonen Jukka (MML)
Hi, I can add vector tiles into QGIS 3.14 from the WMTS service of the National Land Survey of Finland with the following URL (api-key will change some day)