[Qgis-user] Cant enable SAGA GIS algorithms in QGIS on Ubuntu os

2020-04-26 Thread Xristos Xristoou
hello i have QGIS is 3.12.2 version and SAGA GIS 7.7 version in my os ubuntu. In processing settings i cant enable SAGA algorithms . In settings providers show me is activate but is not activate and i dont have some window to add my commands path in QGIS provides. any idea ?thanks

[Qgis-user] can't enable SAGA GIS algorithm in QGIS on ubuntu os

2020-04-26 Thread Xristos Xristoou
hello i have QGIS is 3.12.2 version and SAGA GIS 7.7 version in my os ubuntu. In processing settings i cant enable SAGA algorithms . In settings providers show me is activate but is not activate and i dont have some window to add my commands path in QGIS provides. any idea ?thanks

[Qgis-user] QGIS temporary layer to postgis table database

2019-03-23 Thread Xristos Xristoou
I have an empty polygon table in postgress/PostGIS database with fields (id, field_1). after some processing in QGIS using pyqgis and processing toolbar I create some temporary layer like this case : outputs_GDALOGRPOLYGONIZE_1=processing.runalg('gdalogr:polygonize', raster,'DN',None) outputs_GDA

[Qgis-user] pyqis change pixel size from raster

2018-10-20 Thread Xristos Xristoou
how to change pixel size from raster by value using pyqgis or python gdal ? i try to using SAGA GIS tool resampling : ext2 = rasterLyr2.extent() xmin = ext2.xMinimum() xmax = ext2.xMaximum() ymin = ext2.yMinimum() ymax = ext2.yMaximum() extends= "%f,%f,%f,%f" % (xmin, xmax, ymin, ymax) processing

[Qgis-user] python api code explanation

2018-09-28 Thread Xristos Xristoou
hello I am trying to align rasters in pyqgis or python and i find this post https://gis.stackexchange.com/questions/297216/qgsalignraster-extent where is that i need ,but because i am in the first steps can someone to help me about how t define input parameters and how to fix extend problem ?

[Qgis-user] Fwd: Aligning many rasters using pyqis or python

2018-09-21 Thread Xristos Xristoou
I want to convert many rasters in some pixel size,extent and projection system. That is easy way using QGIS and Align Rasters Tool. Does a tool to do this work using pyqgis or Python (I want to work more programming automatically) exist? ___ Qgis-user m

Re: [Qgis-user] Json and QGIS

2018-06-19 Thread Xristos Xristoou
want to add a raster layer, it is very similar: > > https://docs.qgis.org/testing/en/docs/pyqgis_developer_cookb > ook/loadlayer.html#raster-layers > > Hope this helps, > Raymond > > > > > On 18-06-18 23:59, Xristos Xristoou wrote: > >> hello >> >

[Qgis-user] Json and QGIS

2018-06-18 Thread Xristos Xristoou
hello i follow this manual and i mipoer success vector file from GeoJaon in QGIS here the Link : https://webgeodatavore.com/add-geojson-content-in-qgis-short-recipes.html but in my case i want to add raster layer,how to do that ? ___ Qgis-user mailing

Re: [Qgis-user] Road network download

2018-05-04 Thread Xristos Xristoou
y an arrow on the line if the field oneway=yes > > 2018-05-04 15:22 GMT-04:00 Xristos Xristoou : > >> Thank you! How to do that ? Pre processing? >> >> >> Στις Παρ, 4 Μαΐ 2018 - 22:19 ο χρήστης Etienne Trimaille < >> etienne.trimai...@gmail.com> έγραψ

Re: [Qgis-user] Road network download

2018-05-04 Thread Xristos Xristoou
t's based on > the direction of the line. > > Maybe shapefiles from geofabrik are cleaner? > > 2018-05-04 13:24 GMT-04:00 Xristos Xristoou : > >> I have oneway field with value -1,1,yes and no .but that values is in >> lines and i cant understand connections for

Re: [Qgis-user] Road network download

2018-05-04 Thread Xristos Xristoou
empty. (only to avoid a confusion in > some areas). > > 2018-05-04 13:10 GMT-04:00 Xristos Xristoou : > >> Hello >> >> >> I need to download road network to used for travel problems. >> >> In that road i need to have details for oneways connections.

[Qgis-user] Road network download

2018-05-04 Thread Xristos Xristoou
Hello I need to download road network to used for travel problems. In that road i need to have details for oneways connections. I try to use OSM download QGIS plugin to take the roads but that data dont have direction details for oneway road connections. Any idea ? Thank you __

Re: [Qgis-user] Adding an OpenWeatherMap WMS layer using PyQGIS

2018-04-24 Thread Xristos Xristoou
; On 23 April 2018 at 21:28, Xristos Xristoou mailto:saxr > i...@gmail.com>> wrote: > > I would like to add in QGIS real time weather data. > > I found this link<https://www.packtpub.com/mapt/book/application_ > development/9781783984985/5/ch05lvl1sec98/adding-real-

[Qgis-user] Adding an OpenWeatherMap WMS layer using PyQGIS

2018-04-23 Thread Xristos Xristoou
I would like to add in QGIS real time weather data. I found this link and this link