1
vote
1answer
641 views

how to show some markers on a static image using openlayers 3

I am trying to show some marker on the static image ie. Given a static image of certain size in feet and set of point in feets how mark some image or a marker on the static image using OpenLayers 3. ...
2
votes
0answers
19 views

Dissolving shapefile but retaining original attribute fields in QGIS

How can I dissolve a polygon layer in QGIS based on a single attribute but keep all (or some) other attributes at the same time? This is how I want to retain fields: There are at least two fields I ...
3
votes
1answer
292 views

Problems with Reclassify and RemapRange in ArcPy?

I'm having a bit of trouble with a script that uses ArcPy. I keep getting the following error: ExecuteError: ERROR 000622: Failed to execute (Reclassify). Parameters are not valid. ERROR 000628: ...
1
vote
0answers
13 views

Rendering elevation data of planet_osm_line in GeoServer?

I have created a postgres data from osm data of sachsen and from NASA srtm data extracted elevation data of the same region. I have multilinestring with varying elevation data for a single road, so is ...
2
votes
1answer
85 views

Finding the coordinate system info from a LAS/LiDAR file with Python?

I found several examples of how one can query and manually set a coordinate system on a tif/raster file (GDAL/Python: How do I get coordinate system name from SpatialReference? or Is it possible to ...
0
votes
0answers
23 views

PostGIS Intersection performance

I have a similar question like that one. In that case the performance difference between ArcGIS and PostGIS Intersection could be minimized. I used the "same" SQL-Statement and the "JOIN ... ...
2
votes
1answer
737 views

How to create Map Document for DotSpatial?

How can I create a Map Document (including layers, symbology info etc.) for DotSpatial just like we have MXD File in ESRI ARCGIS.
2
votes
3answers
27 views

How to get the geometry type of a WFS vector layer in OpenLayers 3?

I've been trying to get the geometry type of a vector layer OpenLayers 3 with no success. I know that the geometry type can be obtained from a feature, but in my case I have some layers without ...
3
votes
1answer
18 views

Creating contiguous dispersal surface between two climate-change scenarios in ArcGIS for Desktop?

I'm modelling the distributions of Australian parrots in response to climate change. I have two climate scenarios (present and future), and have used Maximum Entropy modelling to generate maps of ...
3
votes
1answer
31 views

Error using Grass v.clean

I am trying to clean topology of a TAB file in QGIS 2.14.4 and it returns an error message as below The weird thing is, I am able to execute this okay on my machine but not my colleague's. The other ...
0
votes
0answers
18 views

Python type error when I try to load a PostGis layer

I have a PostgreSQL database and I use QGIS to load my PostGIS layers. I usually have no problem loading my layers but, since this morning, I have a python error that I don't understand (TypeError : '...
0
votes
1answer
22 views

Change geomarker in symbol

How is't possible to change the geomarker in another symbol? For examle 'a bike' http://openlayers.org/en/latest/examples/feature-move-animation.html
0
votes
0answers
402 views

Kernel density estimator - batch [on hold]

I've unfortunately just found out that Hawth's batch kernel density estimator doesn't work on ArcGIS 10.1. I've installed GME - unfortunately I can't run batches as there's no tool that will do it. I ...
0
votes
0answers
38 views

How to set file path to the modelbuilder tool? [on hold]

I have got the following problem: I want to dissolve all the shapefiles in my directory and save them under a different name (consisting of the same name and an addition "_diss"). I have managed to ...
2
votes
1answer
22 views

Seeking documentation for qgis.utils module?

There is a PyQGIS module called utils that I can't find any documentation for. It seems to have some useful functions for loaded plugins. Within the Python console in QGIS you can run qgis.utils....
0
votes
1answer
221 views

How can I force ArcGIS to generate “color pallets” for display of GeoTiffs in the FAIMS Mobile App?

The FAIMS Mobile App 1 displays a black pane instead of a well rendered geotiff when I try to import files directly from ArcGIS 10.1 instead of processing them through gdal and grass. Running ...
1
vote
1answer
17 views

QGIS 2.14 hangs at “Starting up the GUI” and fetching plugin repositories

All of a sudden, QGIS 2.14.4 hangs on startup on Win7 for at least 2 min. Eventually it starts without error. Hardware is not the issue (Core i7, 8GB ram, etc.). I tried reinstalling with OS4Geo ...
3
votes
1answer
865 views

How to create a search box and SQL statement for searching an attribute field?

How can I add a HTML search bar that the user can use to search an attribute field for a polygon layer, and then tie that input into the SQL statement? So far I am able to hard code the query of ...
0
votes
0answers
3 views

GMT: Plot subset of polygons based on categorical metadata field

I'm new to GMT and trying to perform what seems like a simple task. I have a GMT (ASCII) XY file containing a geologic map---polygons with lots of metadata fields. I'd like to use gmtconvert to select ...
1
vote
1answer
24 views

PyQGIS QgsVectorLayer.uniqueValues() override active object filtering

This code snippet gives me the unique values for a vector layers attribute called myfieldname l = iface.activeLayer() attrIndex = l.fieldNameIndex('myfieldname') uniValues = l.uniqueValues(attrIndex) ...
2
votes
1answer
31 views

PyQGIS refresh layer tree programmatically

When programmatically applying a subset string to a vector layer (here: ax_flurstueck with object count 34265) via l = iface.activeLayer() l.setSubsetString('gemarkungsnummer in ('2760','2765','...
0
votes
2answers
32 views

Converting multiple csv automatically to shp using ArcPy?

I have more than 300 csv files. Every csv file contained different Longitude, Latitude and other parameters (e.g. Date, Longitude, Latitude, Elevation, Max Temperature, Min Temperature, Precipitation, ...
0
votes
0answers
323 views

Linking two Models together in ModelBuilder [on hold]

I am trying to link two separate models that iterate thought two different feature classes together into one, however I am having a small issue. When I bring in the sub-model into the larger one it it ...
0
votes
0answers
373 views

How to map out commuting patterns by county? [on hold]

I am looking to create a map that shows the commuting patterns in between counties. I am using data from Table 1 at this link. Obviously it will be formatted in a different way. Any ideas? Also, ...
0
votes
1answer
10 views

Can not find “application/json;type=geojson” in Geoserver Tile cache format

I want to server TMS service using geoserver. I know it can be done using GeoWebCache which is loaded by default on geoserver, I have downloaded last version of geoserver and installed it,there must ...
0
votes
0answers
406 views

VBA Code to wait until Python returns value [on hold]

I have written a code in VBA, I am passing parameters to Python and creating a buffer there. After that I am passing that buffer layer and further processing in VBA again. Here is the code for ...
0
votes
0answers
107 views

Converting layer to raster coming up blank after two hours? [on hold]

I am looping through files, selecting out building footprints one by one and converting the selected building footprint to a raster. The script worked fine for about 2 hours this morning then stopped ...
0
votes
1answer
17 views

Making 3d block from flat 2d polygon in ArcScene?

I would like to make a mountain from flat polygon (this polygon is the base contour of the mountain). The question is how to make it keeping 35 angle of the slope ? The top of the mountain should be ...
2
votes
0answers
23 views

Dynamically load symbols preview to plugin

I am working on plugin which combines two *.qml files into new one. Now I'm trying to generate something like "list" in plugin interface. What I have done so far is saving repeated in both files keys ...
0
votes
1answer
340 views

Spatial Join of Polygons to Polygon Grid with Shared Boundaries in ArcGIS Desktop?

I have polygons containing an attribute to be summed by a polygon grid. the polygons with the attribute always share borders with each grid cell and never extend outside any grid cell (the grid has ...
1
vote
1answer
14 views

Geoserver not recognizing jsonb attribute in SQL view of PostGIS db

I have an instance of Geoserver 2.8.2 running and a PostGIS database. I am attempting to create a FeatureType based on an SQL view of the following table (viewed through psql \d): ...
0
votes
0answers
11 views

PostGIS: Cannot create a multiband raster table from other single band raster table

I succesfully uploaded Landsat 7 imageries using raster2pgsql. As each band is in a single geotiff, I have hence the same number of tables in PostGIS. I would like to merge all these tables into a ...
0
votes
1answer
20 views

Moving from one Latitude and Longitude, to another point? [on hold]

I don't really have a good understanding of GPS other than I know what Latitude is and what Longitude is, but I don't know how exactly to move between the 2 points. First point is Lat: 56.53515 and ...
1
vote
0answers
7 views

import error of qgis.core even though PYTHONPATH set up with system environment variable

I made the environment variables as described here: How2 Import Though I still receive this error: C:\>python Python 2.7.5 (default, May 15 2013, 22:44:16) [MSC v.1500 64 bit (AMD64)] on win32 ...
72
votes
11answers
23k views

What Makes a Map be classed as Badly Designed?

A poorly designed map can not only look visually unappealing, but can convey the wrong message, which could lead to bad decisions being made. I would like to ask people to post examples (that are in ...
11
votes
4answers
4k views

ArcGIS 10.0 Python SearchCursor file locking

I have a script that gets a value from a shapefile's field to return to the user. It seems that only when the arcpy.SearchCursor is called ArcMap locks the file and it doesn't get removed after the ...
2
votes
5answers
1k views

Reconciling UTF encoding for OpenStreetMap?

I frankly am a bit confused when I am working outside the United States so please excuse my ignorance. I downloaded some shapefiles for Moldova (MoldovaData) and had a question regarding the encoding ...
0
votes
0answers
10 views

Importing .RAW file data from Sanding total station into ArcGIS for Desktop?

I am using a Sanding total station (Chinese version of Leica), and for some reason it only allows me to download .RAW files as jobs, which I can't open at all. The CD, which came with the station, has ...
-1
votes
0answers
7 views

Routing in R using Leaflet

library(rCharts) library(shiny) runApp(list( ui = pageWithSidebar( headerPanel("Title"), sidebarPanel("MyApp" ), mainPanel( tabsetPanel( tabPanel("Interactive Map", ...
2
votes
1answer
727 views

arcpy export - unable to set exact extent of dataframe

I am trying to use arcpy's ExportToPNG function to produce tiles for Nasa WorldWind, which will require very specific extents of outputted tiles. Pretty simple code - abbreviated below: mxd = arcpy....
0
votes
1answer
13 views

How to auto rotate labels for Polygons in Mapserver?

I want to auto rotate labels of polygons in .map file, all options that exist in Mapserver refers to linear feature only and not polygon. is there any algorithm I can implement in .map file to auto ...
0
votes
0answers
5 views

How to tilt/change angle of view/camera from ortho in Mapserver or Openlayer?

I am wondering if there is a way of changing the angle of the camera in Mapserver from Ortho to a 60degree(+-10) angle. Perhaps this is an extensive modulation of Google Maps? I could imagine that ...
1
vote
1answer
13 views

Select and modify attributes in FME?

I am new to FME but used to ArcGIS ModelBuilder. I am trying to figure out how to select rows based on an attribute and then change the values in the selected rows by a simple formula in FME. The ...
1
vote
1answer
32 views

Converting WGS84 to UTM coordinates using R package gstat?

I want to convert WGS84 to NZGD2000 using R package gstat but I cannot get the right result. # Define the coordinate systems wgs_co <- data.frame(lon=x, lat=y) coordinates(wgs_co) <- ...
0
votes
0answers
25 views

How to transfer x, y, and z values from LAS/LiDAR file to GeoTiff using Python?

I have LAS files containing x, y, and z coordinates from LiDAR point cloud data, and with python I can get one single attribute (elevation, or z points) to transfer to a GeoTiff via interpolation and ...
4
votes
2answers
437 views

Reading binary rainfall data (*.trm) in ArcGIS for Desktop?

I have some *.trm binary data that is merged Tropical Rainfall Measuring Mission (TRMM) rainfall data. I have to read it through ArcGIS for Desktop to extract rainfall data from this.
1
vote
1answer
186 views

Plotting shapefile on map using ArcGIS API for JavaScript?

We are using dojo framework to develop our portal.We have bind the arcgis map in our web portal.Is there any arcgis JavaScript API which will accept the path of the shape file and plot that shape ...
0
votes
0answers
23 views

Delete feature class attribute from sde database arcpy script

I want to write a python standalone script which compares two feature class from SDE geodatabase. For Example, fc1 contains 10 attribute rows and fc2 contains only two rows which match with the fc1 ...
0
votes
1answer
10 views

NMEA sentences-PADCH,PAGCD

I was looking on was NMEA sentences. From which I got a series of know how doubts. I got to know about the terms like $GPGGA, GPHDT, GPGSV, GPGLL from GPS data. Also I could see many new terms like ...
0
votes
1answer
1k views

Import GeoTIFF into MapInfo - why “control points”, and how to batch-create TAB files?

I have 20 GeoTIFFs (produced by gdal-merge of JPG/JGW-filepair hi-res aerial photographs) in total for this job; several hundred, overall for current and pending projects. These files open without ...

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