0
votes
0answers
3 views

saga:slopeaspect curvature

I'm using windows 7 on 64 bit and using Qgis 2.6.0.I'm trying to process some Tifs from the console using the processing toolbox and saga:slopeaspectcurvature. This is pretty much how my code looks ...
1
vote
0answers
10 views

What should be my learning progress regarding GIS open source

I was wondering for a while now, what should be the hierarchy of my GIS knowledge or better to say, learning curve in domain of open source GIS. Should I start with Geoserver and PostGIS then ...
0
votes
0answers
7 views

How to merge shapefiles in QGIS keeping attributes

Let's say, I have two shapefiles, a.shp and b.shp, containing point features with the follwing attribute tables: a - id att1 att2 ----------------- 1 1 1 2 2 2 b - id att1 ...
1
vote
0answers
5 views

Geoserver web admin page language

As far as I know Geoserver web administration page language depends on the language settings in browser. So if my preferred language is Russian I see partially translated page, and if I need it in ...
0
votes
0answers
5 views

“Georeferencing” lidar data to accurate survey

Often I obtain LIDAR data for concept studies and conventional survey (in dxf format) over a small portion of this. The LIDAR typically covers the broader area and is used for broader studies, ...
-1
votes
0answers
23 views

What GIS solution is suitable for my project

I have been tasked to look into what the solution would look like for the following requirement; We need to run a query passing in a UK postcode or full address to find out if we have an existing ...
0
votes
0answers
6 views

Problem to find speed unit option in Update traffic data tool ( ArcGIS 10.2.0)

I have problem to find Speed Unit option in Update traffic data tool for ArcGIS 10.2.0 . I'm using ArcGIS 10.2.0 ( enterprise) . in the help esri describe that you can use speed unit. But i couldn't ...
0
votes
1answer
12 views

Join line to multiple points

I took some ASCII files and created points with attributes. I am trying to join the line features to these but a simple join function will only take the one that is closest. Is there a way to perhaps ...
0
votes
1answer
8 views

How to populate new field according to string content of another field using VB script?

I want to populate a new field called Letting according to the string value found in another field. If 'ASP' or 'Q' is in field ExternalRE then I want 1 in Letting, everything else to be 0. Here is ...
0
votes
0answers
7 views

Closest line, line intersects box and general help

I've been knee deep in information about Geo data, projection and topography but can't find a simple library/method to help me with basic calculations of coordinates. I'm using Google Maps API in ...
0
votes
0answers
11 views

Geonetwork installation

I have installed GeoNetwork using the windows installer, but when i try to open, it displays the error message below: Raised exception while initializing resource main-db in C:\Program Files ...
0
votes
0answers
3 views

Openlayers 2 Custom Control Navigation after panning?zooming

How I can customize or extends Openlayers 2 Control Navigation. I dont want to custom the openlayers default, because I'm currently using 2 different map in one page. especially to custom after ...
0
votes
0answers
6 views

How many Print Composers in a project before its too slow

We are using Print Composer in QGIS 2.6 to print map insets at specific locations, these have all been created and saved in the project. The project now takes a long time to just open, has anyone ...
1
vote
1answer
13 views

Unsupervised classification with kmeans in R

I have a time series of satellite images (5 bands) and want to classify them by kmeans in R. My script is working fine (loop through my images, convert the images to data.frame, cluster them, and ...
0
votes
0answers
7 views

Description of parameters of GDAL SetGeoTransform

Can anyone help me with parameters for SetGeoTransform? I'm creating raster layers with GDAL, but I can't find description of 3rd and 5th parameter for SetGeoTransform. It should be definition of x ...
0
votes
0answers
6 views

Query for finding nearest distance and driving time from objects in a different tables

I have 4 postGIS tables: employees_wgs Facilites and (created by osm2po): at_2po_4pgr at_2po_4pgr_vertices_pgr What I want to do is: make a query to populate two columns in "employees_wgs" ...
1
vote
0answers
7 views

Semi-transparent picture symbols in ArcObjects

When creating a new point layer with picture symbols in ArcMap 10.2.1 using ArcObjects, I have tried several ways to load semi-transparent symbol images from .png files, but to no avail, the ...
1
vote
0answers
9 views

XML ElementTree in ArcPy consuming WMTS XML

How do I work with the xml Element Tree to obtain the ScaleDenominator parent where ows:Identifier = default028mm? With a fair bit of swearing I have managed to hack my way into all of the WMTS ...
0
votes
2answers
18 views

Modifying Time attribute using ModelBuilder?

I need to remove the DD-MM-YY from the "Time" attribute and only keep the HH:MM:SS using the modelbuilder. The model is displayed below and I use ArcMap 10.2. I have tried the "Calculate Field" and ...
0
votes
0answers
22 views

Multiple Labels from attribute column in QGIS

I was wondering if there is a way to have multiple labels from a joined attribute table in QGIS. I have two tables, a polygon table, and a table with words (codes). The codes table can be joined by a ...
0
votes
0answers
7 views

mysql data automatically updates

Is my sql data automatically updated in qgis? We have connected the mysql with qgis but data is not updated automatically. Is there any other way to connect the datasource with qgis?
0
votes
0answers
17 views

Why can't gdal save CRS information to GeoJSON?

gdal fails to add CRS definitions to GeoJSON files in some cases. Try this, for example, from any linux terminal that has gdal installed: # download the data wget ...
0
votes
0answers
13 views

How to split linestrings where start/end points don't touch nearby lines

I am trying to figure out some basic routing with Postgres pgRouting and I'm struggling a bit. Our network of linestrings are not topologically correct, tracks that should be connected don't touch, ...
1
vote
2answers
31 views

How to get a search cursor on a particular version in arcpy

I have a versioned database in ArcGIS and I am wondering how can I tell arcpy what version to query. The closest I have got to an answer has been building a particular connection file that specifies ...
0
votes
0answers
5 views

Can't Get my legend on a swipe layer map

I'm having trouble getting a legend on my swipe layer map. I'm new to Javascript and took most of the code from the API reference but can't get the legend to show up for either layers. I'm Hoping ...
0
votes
0answers
9 views

Update: Creating multiple routes at same time with different stop locations using ArcGIS Network Analyst? [duplicate]

This was the original question asked followed by the update. I posted the update to the original question but I don't think it was being seen... I have a feature class that contains about 500 ...
1
vote
1answer
10 views

ERROR 000989 Issue with Python Script and Field Calculating distance between two long lat points

very new to scripting and I have been struggling with my script for a while. I'm not sure why it doesn't work in field calculator. I am trying to calculate a list of distance between two long lat ...
0
votes
1answer
14 views

Read ellipsoid parameters

I would like to retrieve the semi-major axis of ellipsoid of a layer (any layer) using Python API. It seems that crs class can read only the ellipsoid acronym (?) Apparently, QgsDistanceArea class ...
5
votes
1answer
38 views

Symbolizing using RGB values from Excel in ArcGIS for Desktop?

I have an excel file with 2 attribute columns, 1-feature info 2-Number of color (RGB) that the current feature should be symbolize. This file file can be joined with the layer using the "feature info" ...
0
votes
1answer
75 views

How to use shapefile in QGIS on Debian?

I am extremely new to GIS and I just received a shapefile, as a zip file that includes the following files: filename.SHX filename.SHP filename.prj filename.dbf filename.cpg but I am not sure how I ...
0
votes
0answers
28 views

ArcGIS 10.1 - Error No spatial reference exists

I'm encountering a new error on some geoprocessing. It originally showed up while running commands in arcpy but now it crops up whenever I run some tools. I've been using the Extract by Mask on some ...
0
votes
0answers
3 views

How use POST method in MapFishPrint?

I have one problem to print maps using mapfish print, when I need to print vector layers occurs HTTP error 413. Because this i have using POST method, but occurs other timeout; Mapfish print 2.1
0
votes
1answer
6 views

Multiple Layers Boundless Suite-SDK ol3view

I am currently building a simple web application with the Boundless OpenGeoSuite SDK ol3view (Openlayer3 viewer) and I was able to get one layer to show up from my geoserver instance but I would like ...
2
votes
2answers
38 views

How to calculate percentage of selected area from DEM?

I am working with elevation data and performed a local operation to convert it from meters to feet. I am interested in finding the area (expressed in percentage) that is above 4000 ft, but I have ...
0
votes
0answers
5 views

CartoDB - Multipolygon not showing intersections

I'm having an issue with Multipolygons on CartoDB. I have a very simple scenario: A multi polygon row on a table that needs to be displayed on the map. Fact is that when more than two polygons ...
1
vote
2answers
25 views

What are QGIS Arcpy Equivalent Functions for MakeFeatureLayer and SelectLayerByLocation?

I have a script that I had created using ModelBuilder, but our field personnel use QGIS 2.0. Below is a snippet of the code. I am wanting to know if there is an equivalent using pyqgis so that I can ...
0
votes
0answers
5 views

postgis resampling two rasters to a common intersection grid?

I am testing the PostGIS map algebra (ST_MapAlgebra) on two different raster tables. Each table contains a single image/row. They have the same SRID but different, overlapping extents and different ...
2
votes
1answer
20 views

Save raster from qgis using a compression

There is a method to save raster from qgis using a compression? For exemple from "Export map" in arcgis there are many options to compress the images depending on the file type (tiff, jpg...). I add ...
1
vote
1answer
17 views

How to remove data points that don't overlap with other data

I am working with a dataset for the whole state, but I want only the data point that overlap with another polygon dataset. How do I get rid of the excess points that don't overlap?
0
votes
0answers
4 views

Using ArcGIS Explorer Find function to locate layer feature

I'm new to using ArcGIS Explorer. I have map of a state, overlaid with a grid that a colleague made. Each grid cell has a unique number associated with it. I'd like to be able to search for a specific ...
1
vote
0answers
26 views

Why does my modulo expression return false?

CORRECTION: I've got a big set of contour lines with 5 m and 10 m stepping from an ArcGIS File Geodatabase (wasn't a shape file, as previously stated). From time to time I need to modulo out the 5 m ...
0
votes
0answers
31 views

Alternative way to find intersection between two polygon feature classes

I have been working on making a script to find intersection between two polygon ArcGIS feature classes. I can successfully do this in arcpy instances using spatial join or using search cursors on the ...
0
votes
0answers
20 views

PostGis: find distance if closer than X. For huge sets [duplicate]

I have two tables (that can have different geometry: point, line, polygons, ecc...) and I have to find distances: for all features in table A, for all features in table B, if feature is closer ...
-2
votes
0answers
15 views

Algorithms + additional information [on hold]

I would like to know where i could find information or some instructions for algorithms. For example algorithms to calculate routes between cities or to optimize the way a route is calculated when you ...
0
votes
1answer
15 views

QGIS Print Composer - SVG output displays objects outside the frame

On Windows 7. QGIS 2.6.0 from OSGEO network installer 64bit (and checked with latest dev version) I am preparing a print composer map displaying only vector data (shp). Data in the map canvas and the ...
0
votes
0answers
5 views

CartoDB - Update column from local csv

So I uploaded a csv from my local drive and set up the map, but I would like to update a column of data every day and re-upload the csv, but keep map settings. The dataset is very simple: one column ...
2
votes
0answers
29 views

Why are my polygons automatically simplified/generalised when merging them in ArcMap 10.2?

I am creating a small land use map, as an exercise for visual image interpretation. I created a shapefile and started digitising polyogons with the polygon tool. The problem is that some of my ...
0
votes
2answers
27 views

How to obtain data to create average precipitation in 2012?

I am currently doing a final project, which I have to create a map of 2012 average precipitation of lower 48 states by using natural neighbour interpolation. The problem is that how can I get the ...
0
votes
0answers
9 views

Export to Oracle using QGIS

I have loaded a shapefile into QGIS and I now want to export it into our Oracle Database and add SDO_GEOMETRY. Is it possible to do this directly in QGIS? If not, what opensource options do I have to ...
0
votes
0answers
18 views

error converting shapefile to geoJSON with Ogre online tool

I am using on online tool built with ogr2ogr to convert shapefiles to geoJSON: http://ogre.adc4gis.com/ It's worked well except for one shapefile, and I can't see why... The shapefile has only six ...

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