0
votes
0answers
4 views

Stack advice: solr + OpenLayers +?

I have a solr instance with a few million items that is being queried for geographic coordinates and some rich media (like tweets). These are sent to a GPU for rendering. The resulting data is ...
0
votes
0answers
3 views

Loop to check multiple polygons overlap in r

I have a set of polygons (available here: http://ulozto.cz/x39ELbFt/polygons-zip) created in QGis and processed in R. I would like to know if they are overlapping or not, and if yes, where is the ...
0
votes
0answers
5 views

Using photo for mapping lineations in ArcGIS for Desktop?

I am attempting to map the paths of burrow on an oriented photo in order to generate an xy xy chart to run a lineation analysis. How do I get a photo into ArcGIS, orient it, and trace lines that ...
0
votes
1answer
12 views

NOAA API data for past monthly mean Temperature and precipitation

I am trying to use the NOAA API to get data on monthly mean temperature and precipitation for the past 10 years. I wrote the following python code (the variable "token" in the code is the API token ...
0
votes
1answer
3 views

Conflicting results for spatial autocorrelation tests

I am working with an imbalanced (5%/95%) presence/absence dataset. I've created 25x25 m. raster cells that are categorized '1' or '0'. My Geary's C result (~0.993) and Moran's I result (~0.0045) are ...
0
votes
0answers
11 views

Can't get my QGIS external map to display on Ubuntu trusty: QObject::connect: Cannot connect (null) error

I've been following along the examples from the book "Building Mapping Applications with QGIS and for the life of me I can't figure out why my shape files aren't loading and displaying in the app ...
0
votes
1answer
8 views

OSGeo4W GDAL Polygonize Batch Convert?

I'm trying to use GDAL polygonize to run a batch convert but I cannot for the life of my figure out a way to get it to read a text file as input that contains all of the commands. Do any of you know ...
0
votes
1answer
11 views

What is the difference between the “feature to raster” and “polygon to raster” tools when converting a polygon to a raster?

I am currently trying to get a group on connected polygons that are within the same feature to a raster so I can reclassify it for cost analysis. I noticed that ArcGIS for Desktop has a "feature to ...
0
votes
1answer
6 views

point to raster conversion works as a tool in arcmap but fails when attempted with identical parameters in a script

I'm working on a script that will automate a stream delineation protocol given a DEM and a culvert layer. I was having difficulty troubleshooting problems with the point to raster conversion tool so I ...
1
vote
1answer
18 views

My QGIS plugin shows GUI but not Works. How to get Error log?

I am new to PyQgis. I made a simple calculator with PyQt4, now I am trying to run it under QGIS. I connected calculator as plugin, and tested it, its GUI works without error but it does not calculates ...
0
votes
0answers
7 views

LAStools (3D Analyst) scale factor application

I'm trying to use the las2las(transform) module from the LASTools toolset to apply a scale factor to an LAS dataset. The problem is that the client wants us to apply the scale factor from a known XY ...
0
votes
0answers
5 views

ImportError: No module named mapnik on CentOS 7

The problem: I've installed mapnik 3.0.1 successfully by running the typical source code install: ./configure make && make install ldconfig -v However.... When I import mapnik into ...
0
votes
0answers
4 views

Launch processing tool user interface using python command

I am trying to launch the user interface of a processing algorithm using Python script but I cannot find a simple way for it (aside double clicking on it in the process toolbox of course). The plugin ...
0
votes
0answers
10 views

python script for splitting a polygon feature into equal parts

Is there a python script for splitting a polygon feature into equal parts in arcgis 10.1 . I know arcgis 10.3 has a segmentalongline function but I m looking for Arcgis 10.1 functionality. THis is ...
2
votes
0answers
19 views

How to save Result File from command line arcpy?

What do I need to do in order to get a custom arcpy script to save an execution run into the Results window, and/or just straight to an .rlt file directly? The script is run from the command line ...
0
votes
1answer
11 views

Using Leaflet: How do I get it to display one popup based on a condition?

Using Leaflet: How do I get it to display one popup based on a condition. See below. basemap_0.addTo(map); var layerOrder=new Array(); function pop_thunder(feature, layer) { ...
1
vote
0answers
16 views

How to integrate a New Coordinate System as Default in ArcGIS 10.2

I have a database in Postgres whose Coordinate System is a local one. I mean it is not defined as default in ArcGIS. On the other hand I have ArcGIS with SDE working over Oracle. Obviously, in ...
0
votes
2answers
19 views

I cannot find osr after installing OSGeo4W package

I wanted to be able to import OSR from GDAL on my Python 2.7 (Anaconda) Windows 7 64-bit. I installed OSGeo4W after reading this post and eventually I'd like to import osr from osgeo import osr ...
0
votes
1answer
15 views

Looking for geometries defining the boundaries of Canadian Location Code regions used for Meteorological Services in Canada

To be clear I have looked into the GADM datasets. The problem is that Canada has a very non-standardized level-2 Administrative Zone identification across the various Territories and Provinces. As a ...
0
votes
0answers
11 views

Prevent Overlapping Features in QGIS from Being Faded

I have multiple layers in QGIS that I've set as transparent so I can see their respective features. However, I would like one layer (showing proportionally sized points) to NOT fade when it overlaps ...
0
votes
1answer
18 views

Change from ArcGIS extent box to lat long pair

I have a copy of some ArcGIS log files with bounding box extent information. This example point should map to Montana. Extent:-12711495.260857,6062474.786336,-12711267.136963,6062864.358207 I know ...
1
vote
0answers
15 views

Managing privileges for an ArcSDE database using SSMS

I am trying to mange users for my ArcSDE database via SSMS as opposed to tools in ArcGIS, to do this i want to set up two new user roles, data-viewer and data-editor, and then assign users to those ...
0
votes
1answer
17 views

'Capturing' Polygon Surrounding a Point [on hold]

I am attempting to 'capture' multiple polygons that are associated with points. In other words, I have points that reside within taxlots and I want to create a layer with the polygons that have the ...
1
vote
0answers
16 views

Closest facility analysis using polygons

I have a polygon shape file containing polygons representing green spaces and a point shapefile of postcode centroides and am hoping to carry out closest facility analysis in arcmap to calculate the ...
0
votes
0answers
20 views

Which Custom Geographic Transformation Method to use for Nad83 to Nad 83 (CSRS)

I couldn't find a NTv2 file for transforming GCS NAD83 to GCS NAD83(CSRS) so I'm trying to create a custom transformation using the 'Create Custom Geographic Transformation' tool in ArcMap. The tool ...
0
votes
1answer
12 views

What are the requirements to set “Supports Advanced Queries” true on a Feature Layer hosted on ArcGis Server 10.1

I'm trying to use the ArcGIS query feature, OrderByFields, but I've read that for that feature to work the feature layer must show "Supports Advanced Queries: true". The layer we are hosting says that ...
0
votes
0answers
11 views

Convert distance from meters to EPSG 3857

I need to convert distance from meters to units of EPSG 3857 in PostGIS. This is important for me to calculate a radius for ST_DWITHIN as I'm dealing with geometries. How can I do this?
1
vote
0answers
19 views

Add Attribute Data to Polyline from Point

I have code that is taking a point dataset and converting into lines based on an ID similar to point to Line. It is also creating 32 new fields in the polyline that I want to populate from the the ...
2
votes
1answer
32 views

What is the best method for route cost estimation? [on hold]

What would be the best method for calculating a rough route cost (been some years since I have used Network Analysis in ArcGIS), alternatively would it be better using Google Map API and completing in ...
1
vote
2answers
10 views

Is publishing geodata in unprojected latlon coordinates better than a local UTM projection?

This is meant as some kind of reference Q&A. Unless I am working with truly global data, I always prefer projected, local, metric coordinates so that calculations like area or distances are ...
0
votes
0answers
3 views

OpenSearch search for arbitrary doubles

Is there any way to define a field in open search to search for arbitrary doubles? Something like value > 1000.102? Or is there a way to emulate that?
0
votes
0answers
10 views

How can I extract the latitude and longitude from a s57 File [duplicate]

I had to extract the longitude and latitude from a s57 file, in order to superpose a satelite view from the same point. These coordinate will allow me to get the exact position on google map by ...
2
votes
1answer
34 views

ArcGIS Desktop 10.2.1 and one-to-many relationship

I've been struggling to link a feature of 450 municipalities and approximately 60,000 fires that have occurred over the last 15 years. I've attempted to make a relationship class. I can see the ...
1
vote
1answer
27 views

How can I import shapefile in python?

How can I import a shapefile in python? from PyQt4.QtCore import QSettings, QTranslator, qVersion, QCoreApplication from PyQt4.QtGui import QAction, QIcon, QFileDialog # Initialize Qt resources from ...
2
votes
0answers
14 views

Combining multiple DEMs into one file geodatabase

I have multiple file geodatabases (approximately 240) each contain a DEM. My issue is taking the DEM from each and putting it into a single file geodatabase without alot of mind numbing work. ...
0
votes
0answers
16 views

Digitizing a coloured map with legend

I have a map that is coloured with a legend of physical values (elevation) associated with the different colours. Is there a way to digitize this map and yield the actual elevation values (instead of ...
0
votes
0answers
12 views

Is there a way to get undistorted maps in R (when using the openstreetmap package)?

When I download a large map within R (using the openstreetmap package) and I reproject the map (ideally to +proj=longlat), the map will always turn out distorted, making country labels etc. near the ...
1
vote
0answers
15 views

Indexing PostGIS table by tile boundaries

I have a PostGIS table with 2M rows, all Points. I'm creating tiles from the data, but it's quite slow. Although I have the normal geometry indexes enabled on the table, I wonder if it's possible to ...
2
votes
1answer
23 views

Automating Line Creation with Multiple Points

I have a feature class that has over 1500 points in it. I then need to create line segments from these points based on an ID number. For example points 1-6 have the ID 1, points 7-12 ID 2 etc. Each ...
2
votes
1answer
29 views

How to detect if point is on the left or right side of the line in PostGIS

I have a linestring table and a point table in postgis. I know the closest line to any given point. What I need to know is on which "side" of that line is the point. I guess I have to do that by ...
1
vote
0answers
15 views

What solutions to use QGIS as insert tool for a Postgres relationnal database?

I have a Postgres/PostGIS relational database and I would like to use QGIS as an interface for inserting data. The thing is that my database is quite complex and I need my tool to handle the following ...
0
votes
0answers
12 views

QGIS measure growth in special directions

I want to measure the growth of different areas in special directions. The same as in this article of M.S.Moeller on page 5 (Figure 5 and 6). But I don't know how to build such a Wind Rose in Qgis. Do ...
0
votes
0answers
16 views

Compiling mod_tile problem

I wanted to build my own tile server as written on switch2osm site. In short: render is not happening (more details you can find here). Seems that mod_tile is not installed correctly. First it gave ...
1
vote
1answer
9 views

Searching for detailed shapefiles in Vietnam: Tam Ky and Quy Nhon cities

I am new to the site, and also fairly new to GIS, in general. I have spent the last year of graduate school familiarizing myself with the program, but am by no means a GIS expert. Please bear with me. ...
0
votes
0answers
12 views

How to randomly apply a feature from the attributes table (an area) to a bigger area in ArcGIS 10?

I am rather a beginner at ArcGIS and I have absolutely no idea how to do this. I have to design an agricultural area, which I have the whole of it, but I am not sure which farm plant which crop and so ...
0
votes
0answers
18 views

Leaflet: hover over one polygon and another gets styled

I'm currently using Leaflet sync to have two maps side by side. On each side, there are maps with different GeoJson data sets. I am hoping to hover on eg. a lake on map1, then have a similar lake on ...
-2
votes
0answers
17 views

How to export coordinate X,Y system from dwg [on hold]

How to export coordinate system X,Y from dwg AutoCAD file using C# .NET code.
1
vote
0answers
18 views

Regression Analysis using ArcMap 10.1

I am trying to preform regression analysis using road accident data using ArcMap 10.1. The accident data is a point file for all accidents with information on the date the accident happened, time, ...
3
votes
2answers
48 views

Automatically align the border of one shapefile to overlap the border of another

Can I automatically align the border of one shapefile to overlap the border of another, without editing each vertice individually?
1
vote
0answers
8 views

how to obtain a shapefile of 2D FOV from EXIF?

I allow myself to contact you about a topic for which I saw you writte an answer on this discussion : How can i use field of view in ArcGIS? So maybe you will be able to help me. I have a serie of ...

15 30 50 per page