0
votes
0answers
16 views

PostGIS tiger geocoder installation trouble

I am getting the TIGER geocoding feature set up on my windows 7 64 bit box (PostGIS 2.1; Postgres 9.4). I followed the steps outlined here to generate the batch scripts and ran them last night: ...
1
vote
2answers
48 views

Using Python to select records by date field

I am trying to write a python script to select records created within the past 7 hours (date field - database time) using a where-clause within arcpy. The table is ArcSDE database (Microsoft SQL ...
0
votes
0answers
21 views

Spatial index in R - Performance enhancement on geospatial processing [on hold]

In my Geoinformatics studies, I often stumbled over the usage of spatial indices in spatial databases like here. However, I wondered if there is any possibility to use such indices in R in order to ...
3
votes
1answer
30 views

Getting different pixel depths from output raster when done in ArcMap versus Arcpy?

When I use 'Plus' in Spatial Analyst to add together two 8-bit unsigned rasters (pixel values 0-100) the output raster is 8-bit unsigned (pixel values 0-200) but when I try and do the same thing ...
2
votes
0answers
22 views

Location allocation Road Block- Unable to “Solve”

Scratching my head as why I can't figure this out. Software: ArcGIS/ArcMap 10.3.1 with network analyst extension Objective: Perform location-allocation services, based off of 2 Required Facilities ...
2
votes
0answers
15 views

Use Geokettle to Transform file geodatabase data

I would like to use geokettle to transform my file geodatabase data into something else (most likely postgis). Admittedly I am very new to ETL but I am absolutely stumped when I try to define an ...
2
votes
1answer
19 views

Stop snapping from occuring with inserted text?

I'm having trouble with text and scale bars in layout mode on arcgis snapping. I want to move the text freely. It's not necessarily snapping to inserted margins either. I've tried guides and it won't ...
3
votes
1answer
31 views

Vincenty or (Project + Euclidean) for accurate distances

I posted a similar question on stackoverflow, however was directed here for more help. If my main goal was to calculate distances such that my error was minimised to the nearest metre assuming that ...
1
vote
2answers
29 views

How can one retrieve all the raster cell values for Kernel Density output?

This question is related to the replies in this earlier thread (How to interpret GRASS v.kernel results?). I am new to GIS mapping (arcGIS) and have been trying to work with the Kernel Density ...
1
vote
2answers
20 views

Loading data in existing dataset in ArcGIS Online?

In ArcGIS online (AGOL), is it possible to load data (shapefile or geodatabase) into an existing layer? The map layer is shared and editable.
1
vote
0answers
17 views

Why does Floyd-Warshall not return all pairs in my pgrouting SQL?

As a follow up from 1-center and k-center problem / maxmin facility problem in PostGIS I have a strange behavior for the Floyd-Warshall algorithm which seems to give not all pairs. Why are so many ...
0
votes
0answers
14 views

arcpy.UploadServiceDefinition_server sometime fails with Error:999999 and fixed with swapping identical ags connection files

I need help resolving an intermittent 999999 failure during arcpy.UploadServiceDefinition_server. I'm using arcpy.UploadServiceDefinition_server with a saved ags arcserver connection file as part of ...
1
vote
1answer
23 views

export more than one but not all attributes with qgis2web

Using the qgis2web plugin: Is it possible to select more than one but not all attributes to be shown as popup? I can select all attributes or only one attribute to be shown. but not for example two ...
0
votes
1answer
23 views

How to set bounds and make map bounce back if moved away?

I wanna make this map bounces to the center, and make the red line the limit that you can move the map. Don't know why my fitbounds doesn't work. Any help? My code: var mapBounds = ...
1
vote
2answers
39 views

Snap polygon to grid (lat/lon)

I'm trying to code this in Leaflet, but the key is finding the formula to do this. Give a polygon (filled in the image), how can I expand it to fit a grid (lat/lon, outer line in image) ? This is ...
0
votes
0answers
33 views

Django/PostGIS: How to insert coordinates in PointField in EPSG:27700, and return EPSG:4236?

I am using Django 1.9 with PostGIS. I have input data that consists of British National Grid eastings and northings, and a table that looks like this: class Org(models.Model): name = ...
-2
votes
0answers
20 views

Choosing server for dissemination and management of road data? [duplicate]

I would develop an application for the management and analysis of traffic data so I would view the roads and change the line and as soon as I change the line ' road ' should be changed in the database ...
2
votes
0answers
24 views

How to get the most accurate elevation reading for the ground floor of a building?

I am looking into a way to calculate the elevation of the ground floor of many buildings in a study area. My plan is to run the building centroids against an elevation grid to get an elevation ...
1
vote
1answer
14 views

Projected Coordinate System for South Australia

I am calculating areas of polygons and distances between points in a small park in South Australia (~ 139.4 longitude, -34.3 latitude). All of these points are currently in GCS WGS 1984, and the ...
1
vote
1answer
47 views

ArcGIS - Why would spatial join return correct distances but wrong attributes

I am doing spatial joins on points and street (line) features to identify the closest street to each point. However, despite getting appropriate distances returned for each points, closest road, the ...
1
vote
0answers
10 views

module object has no attribute classFactory

I asked this question several days ago on the QGIS developer list but didn't get any love. I'm hoping someone can help me resolve this error. I have a custom repo and a custom plugin that I'm ...
2
votes
2answers
67 views

FeatureClassToFeatureClass_conversion: How to export feature class to shapefile without losing OBJECTID

I am trying to automate a workflow which involves exporting multiple feature classes (within a geodatabase) to shapefile format. My inclination has been to use the ...
0
votes
0answers
24 views

Double-clicking a vertex in ArcGIS Pro stops snapping from working

I am trying to use a ArcGIS Pro, but every time I double-click on a vertex to finish a sketch, it completely stops the snapping from working. I have to close down ArcGIS Pro for it to come back. Does ...
1
vote
0answers
19 views

GRASS unable to download any extension from GRASS Addons

I'm trying to install some add-ons to GRASS, but each time I try to download an addon, I'm getting the same error: g.extension.py extension=v.autokrige ...
1
vote
1answer
41 views

Convert to lat-lon coordinates GDAL

I have a netCDF file and would like to convert it to LAT-LON coordinates. 1) I do not know the projection in the file but from the website of the data provider, the data is on a polar-stereographic ...
3
votes
2answers
92 views

Field calculator if and elseif statement with <Null> values in ArcGis 10.1

Trying to figure out how to get this "Headwater" column to indicate "Yes" (or 1) if the value of "NextDown_Copy" is "" and "No" (or 0) if it has any other value (eg. 7100381010). I attempted to ...
1
vote
1answer
19 views

Create VRT from shapefile using a where clause

I am wondering if there is a way to create a .vrt using a shapefile, but specifying attributes through a where clause. I have made a .vrt from a sub section shapefile (pre selected the tiles and ...
1
vote
0answers
13 views

raster doesn't redraw to fit the canvas after a zoom in and a pan

i am working with qgis 2.8.2, c++ api and qt 4.8.5 i have a layer in the mapcanvas, this layer contains a raster ( a georef tif picture ) when i zoom in, the raster fill the entire canvas , ok but if ...
2
votes
1answer
20 views

In QGIS combine multiple polygon parts of a single feature

This is a repost of my unsolved QGIS dilema. The image shows a single selected feature that consists of two polygons and the corresponding attribute table. Some nodes of the left poly have been ...
0
votes
0answers
19 views

Project NetCDF file using GDAL or QGis

Can I project a NetCDF file with the help of GDAL or QGis? The file info is: gdalinfo c:\tomcat-6.0.36\webapps\ncWMS\layers\RAIN_MM_1hour_ac.nc Driver: netCDF/Network Common Data Format Files: ...
0
votes
0answers
41 views

Adding a Field to a Feature Class using Python

I'm trying to create a script that adds an integer field to a File GDB, calculates it, buffers it, then clips it to a different GDB featureclass. Can anyone help me, I'm stuck so far!? I'll provide my ...
-2
votes
0answers
12 views

Georeference data for Africa [on hold]

Is there georeferencing data for Africa in CartoDb. I am looking specifically for Nigeria. How do I access that data?
0
votes
0answers
8 views

Export average observations

When post processing with Leica GEO office multiple observations in the ascii output would be the average but now it is giving me each observation and the average. Is there a toggle that needs to be ...
0
votes
1answer
15 views

GRASS parser() error

I'm trying to use GRASS on python 2.7, but I'm having some problems at setting my script on IDLE, then I'm getting an error at parser() function: Here is my script: import os import sys gisbase = ...
-4
votes
0answers
22 views

Image segmentation [on hold]

I am using ERDAS-IMAGINE software for segmentation purpose but I don't know how can I do this. I need some tutorial PDF or video to perform this.
0
votes
0answers
19 views

Render svg file in Open Layers 3 map

We have an AutoCad based software to design telecom networks and we store equipment as an "svg" data and the lat long value of the equipment in database. Our database projection is LCC i.e. EPSG:4326, ...
4
votes
1answer
38 views

How to toggle group visibility in QGIS using Python?

I've tried this, but it doesn't work out. root = QgsProject.instance().layerTreeRoot() group1 = root.insertGroup(0, "PGB") legend = i.legendInterface() legend.isGroupVisible(group1) ...
1
vote
1answer
36 views

Building QGIS 2.8.6 on Win 7 32bit?

I'm trying to build QGIS 2.8.6 on Windows 7 32 bit using MSVC Express 10. The build process completes without errors, but with a bunch of warnings. When I run the qgis.exe after installation, it only ...
0
votes
1answer
21 views

How to delete features/records in ArcGIS Online hosted service using Python

How to delete features/records in ArcGIS Online hosted service using Python? I need to delete some features using Python from a feature services hosted in ArcGIS Online. I read a similar post that ...
0
votes
1answer
31 views

Export all data driven pages to PDF using Python script

I am a novice Python user but I am trying to create a script which will allow me to export all of the data driven pages within an mxd to a single pdf file (without having to open the mxd) I currently ...
1
vote
2answers
89 views

Why do my points end up in Africa? (should be Croatia)

I have the correct coordinates in a excel file, but when I import the file, the point always goes to the wrong place. (I need it in Croatia, and it puts the point in Africa) I've tried chaging CRS ...
1
vote
2answers
50 views

Filling up river corridors in a DEM

I'm currently working with a DEM (10 m x 10 m resolution) that has a lot of faulty elevation values in river corridors. In order to run a hydrodynamic model I'm trying to get the following done in an ...
0
votes
0answers
16 views

Cannot open r.viewshed on Grass 7

I cannot open the r.viewshed tool in Grass 7.0.3. I am using the 64-bit version on Windows 7. The error message is given below: Traceback (most recent call last): File ...
0
votes
0answers
6 views

Bind Geometry to ViewModel

I'm trying to create a viewModel for my application and the data is typically populated by a call to a database. I can retrieve the coordinates and convert this to geometry which can be displayed on a ...
1
vote
0answers
20 views

distributing QGIS via OPSI

Is anyone experienced in distributing QGIS via OPSI (Open PC server integration, http://www.opsi.org/en)? I think this requires an msi package, has anyone built one from the qgis.exe installer?
1
vote
0answers
10 views

Nominatim does not respect countrycode

Possible duplicate I have a question about Nominatim, but the OSM forum currently does not accept new registrations... I want to limit my search results to a specific country, so I am using the ...
1
vote
1answer
22 views

Snapping vector data to OSM roads

I'm looking for a solution to snap my GPX tracks to OSM roads. Mapbox Map Matching API actually does this, but sometimes snaps to wrong roads. In this wrong case I want manually edit snapped track by ...
0
votes
1answer
35 views

Geosearch Esri controls in leaflet

It is possible to disable the Geosearch Esri controls in leaflet after the first geocode search? When I run Chrome console and I select the search geocode icon this is the code: <input ...
3
votes
1answer
157 views

What algorithm does QGIS use to calculate Nearest Neighbor Index?

I'm carrying out nearest neighbor analysis on a set of geological features in QGIS, trying to find out whether they're clustered or not. I've calculated the nearest neighbor distances using the ...
2
votes
0answers
82 views

Merge n number of adjacent polygons [on hold]

I have over 17,000 individual polygons. I want to merge two adjacent polygons so that I finish with approximately 8,500 polygons. The polygons need to be merged based on location, merge two adjacent ...

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