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I'm making a python toolbox and it has an input parameter of type GPFeatureLayer. Let's call it my_param. In updateParameters when my_param.altered, its value is added to a value table. Then I'd like to set my_param.value = None, so that the selection is blanked out and same value could be...

Become a master of raster data. Discover how you can use FME to restructure raster data by clipping, mosaicking, tiling, and more. You’ll also see how to create more valuable rasters by integrating data from other sources. Plus, see how to convert rasters into the format and coordinate system...

Thank you to all who participated in the 7th Annual Search and Rescue GIS Workshop on November 12-15 in Sonora, CA. The workshop was a resounding success for all participants. Special thanks to the NAPSG Foundation and Columbia College's budding GIS Program (see more about Columbia College...

BSR, lorsque je lance GRASS GIS, le message suivant s'affiche " *ERREUR :G_getenv: variable LOCATION_NAME non definie *" et sa s أكثر...

  For some time I have been making a list of “geopolitical anomalies,” loosely defined as existing arrangements that defy the standard model of sovereign states exercising completely control over unambiguous, clearly delimited territorial realms. Until recently, however, one of the world’s more...

Our new Mapbox Studio gallery showcases the very best of map design for web and mobile! Did you design a map or build an app with Mapbox Studio that we should showcase? Email us at gallery@mapbox.com. أكثر...

I'm new to QGIS. I would like to plot a CUSTOM route to OSM or Google maps background, which I have in a csv file as street names. As if you told a person how to go from A to B. E.g: Route 1: High street, Bond street, Piccadily, Park lane, Oxford street; Route 2: ... Route n I am...

I get this error on both 2.10 & 2.12 on two different machines running Ubuntu 14.04 with Python 2.7.6. When trying to run the fixed-distance buffer on a shapefile with polylines I get the following error: QgsFeature.setGeometry(QgsGeometry): argument 1 has unexpected type 'NoneType' See log...

I'm doing a school gis project on analyzing the urban heat island effect on Denver, Colorado mapping surface temperatures. I tried downloading data from the Earth Viewer application but upon loading it onto ERDAS IMAGINE the image only had 1 band, obviously I'll be needing multiple bands and a...

I have been asked to created some sort of reporting of OGC services data, and as well some sort of comparison reports to show comparison. I have not worked much with OGC services, but in review I felt the WMS getCapability would be the easiest to extract. To start moving on the project, I...

How to determine land cover percentage using arc gis 10.3? I tried land cover classification. I want to determine percentage land cover so I can be able to calculate runoff أكثر...

I am trying to set up an offline version of OpenStreetMap to use on holidays where internet can be spotty. Following https://switch2osm.org/serving-tiles/manually-building-a-tile-server-14-04/, I have managed to do so. I am no wondering if there is any "easy" way to add elevation information...

I'm trying to compile a cython plugin for QGIS. The plugin is working on windows (32/64) machines but was never used on Mac before. I compiled the cython for python as described here but there are still issues and code now returns above error. File...

How to stop writeOGR from abbreviating Field Names when using "ESRI Shapefile" driver I'm currently using the following script to add some attribute data from a table to lots of individual shapefiles: library(rgdal)specieslist

France will chair and host the 21st Conference of the Parties to the United Nations Framework Convention on Climate Change (COP21/CMP11), from 30 November to 11 December 2015. The conference is crucial because the expected outcome is a new international agreement on climate change, applicable to...

Summary: A new study completed by the U.S. Geological Survey, in cooperation with the Borrego Water District, will help water planners in the Borrego Valley, California better understand and manage the groundwater resources that the area relies on for drinking water, agriculture and recreation...

I want to create MCP polygons to represent home range of individual birds in QGIS. I am trying to figure out after how many positions our home range estimate stabilizes (or doesn't, which mean I have not yet acquired enough points). Which path would you use? Thanks,Ben أكثر...

I have a table that contains a FeatureLineID, it also has a fromNode ID (MH ID 1) and a toNode ID (MH ID 2). I have Sewer segments (polylines) in ArcGIS That don't have these FeatureLineID's and MH Nodes (points) with MH ID's. How can I populate information in the Sewer Segments based on the...

I have a point shapefile with attributes and I want to make the label be perpendicular to a line shapefile, is this possible? Basically my points represents houses and I want the house label to show up perpendicular to the line segment (road). My line segments do not all run the same way so I...

I've located two sites that display the data that I'm looking for, but both lack exporting functions. OASIS NYCandmaps.nyc/gov Otherwise I can't locate this data anywhere in a format I can use in QGIS. Anyone have any suggestions? Otherwise, is there a simple way to go from an image with...