2
votes
1answer
106 views

CQL filter causing slowness in Java \ Geoserver app

I have a Java application that includes an OpenLayers map with WMS tiles pulled from Geoserver. Geoserver and the Java app are looking at the same MySQL database. In the Java application I have a ...
1
vote
1answer
21 views

Mobile device GPS into a PDF Form

This is an issue I've been trying to solve for a while and am told it's not possible. I have made a PDF form with an input box for coordinates. As the form is for use on mobile devices, I would ...
0
votes
1answer
3 views

Get cell size for raster in QGIS

How do you get the cell size of a raster in QGIS? This is a simple matter in Arc, just look at the properties. QGIS has properties, but no raster cell size. Thanks.
0
votes
0answers
13 views

Point Distance analysis tool in ESRI ArcMap is not calculating all observations

I'm grading homework for a number of students who are doing the same GIS assignments, and in the latest one, three of them had answers that varied from the rest of us when I looked at their statistics ...
2
votes
0answers
39 views

pgsql2shp ERROR: incompatible mixed geometry types in table

I have multi-linestring in .shp files and I split the lines with postgis, but that result is only geom column. It does not works with shape file exporter error: incompatible mixed geometry types ...
0
votes
0answers
5 views

Removing disconnected cells in a stream network raster using ArcGIS

This is two-parter: I've got a predicted stream network raster with cells values 0 (not a stream) and 1 (is a stream). My end goal is to create a network of connected polylines, but unfortunately ...
4
votes
4answers
801 views

Can ArcMap display the individual dimensions of a polygon?

I'm working with parcel data to get the dimensions of each lot to correspond with known dimensions. Is there a way to display the individual lengths of each line comprising the perimeter of a ...
1
vote
1answer
122 views

Can't select points with a rectangle (ArcMap)

I am using ArcGIS 10.2, ArcMap and I have a shapefile point layer in which I can't select any points. (I'm having the same problem this person describes but none of the suggested solutions work: Why ...
0
votes
0answers
25 views

Calculating angle of telemetry GPS points in ArcGIS for Desktop?

Does anyone know if it is possible to calculate the angle of telemetry GPS points in ArcMap? I would like to calculate the angle made when the bird travels from one GPS point to the next. Picture one ...
3
votes
2answers
66 views

Visualize overlapping line vertices in QGIS

I am trying to inspect the vertices of some linestrings in QGIS 2.4. My goal is to visualize every vertex of a line and easily find those that are duplicated. To clarify this, for an example line ...
3
votes
1answer
160 views

Calculate line distances inside of polygon

I'm working with two data sets: NHD polyline stream layer for my entire state HUC Watershed boundary Polygons for the entire state I am looking for a way to calculate the total length of streams ...
1
vote
0answers
21 views

Creating a raster based on a where clause

I am writing a script that deals with a raster that will need a subset of the raster outputted and the rest of the original raster needs to be "no data". To clarify, say, there is a raster and ...
2
votes
1answer
429 views

How to dynamically measure and display radius of circle in OpenLayers?

I want to give my user the ability to click on the map and give him a dynamic circle drawing tool which also reads out the radius measurement. That way the user can see how big the circle he creates ...
1
vote
2answers
99 views

I've installed OpenGeo Suite, how do I use it with Leaflet?

I've just finished installing OpenGeo Suite on my VM Ubuntu web server. I'd like to be able to use Leaflet from leafletjs.com to view my maps with on my mobile devices. I'm supposed to create an ...
1
vote
1answer
22 views

creating precipitation grid

I am trying to create a precipitation grid for my meteorologic model. The problem is that, I do not know what are the things I should have for me to create the grid. Can anyone tell me what are the ...
1
vote
0answers
5 views

How to add CADRG RPF A.TOC Raster Data Source in Geoserver 2.6

I'm currently trying to add CADRG as a datasource in Geoserver 2.6. I've installed the necessary GDAL plugins (1.9.2) for Geoserver 2.6. I placed my RPF folder in C:\Program Files\Apache Software ...
0
votes
0answers
5 views

Export background tile map to raster file

In QGIS I managed to display the ship traffic density from marinetraffic.com as a background tile map using the TileLayer plugin. Here is my TileLayer.tsv file: #title credit serviceUrl yOriginTop ...
21
votes
6answers
8k views

What is the best colour-ramp to use for elevation?

This is maybe rather subjective as it concerns style, but I would like to have a few decent colour ramps for my DEM when it is layed over my hill-shading. I have created the Swiss hillshade model as ...
1
vote
1answer
6 views

GeoServer Label Placement - Place Always Inside Polygon

Is there a way within the SLD to ensure that the label always appears within the polygon? For example, in odd shaped polygons (with a hole, or a horseshoe shape) my labels are sitting outside. I'd ...
2
votes
1answer
40 views

Assignment of defaults to field not working

I am using ArcGIS 10.2.2 for Desktop. I have assigned default values to some fields in a feature class, which is sitting in a file geodatabase. I used the "Assign Default To Field Tool", which ...
1
vote
1answer
17 views

QGIS: OSM Landscape layer not printed

I am new in GIS and I am trying to print a new map. If I use Google Street and web layer, it got printed without problem in the composer, but OSM Landscape does not appear on the printed document (it ...
2
votes
1answer
203 views

How to get data from TileMill tileLayer properties in Mapbox for click/hover

I've successfully used Leaflet to load a geoJSON polygon-shapefile with data, and added click and hover interactivity to the layer. For a large dataset, I switched to mapbox.js 1.6.1, used TileMill to ...
1
vote
1answer
45 views

How do I pull tiles from a local pouchdb in Openlayers 3?

End goal is to be able to access a pouchdb of map tiles on phone off-line that has been synced from remote couchdb of map tiles. This will all be wrapped in Cordova. Using ol3, I currently can pull ...
2
votes
1answer
34 views

How to remove abnormalities from the Green vegetation fraction

Study area was clipped by using the shape file from Band 3 and Band 4. First, Band 3 and Band 4 were converted to at-satellite brightness temperature by using the built-in function in semi-automated ...
1
vote
1answer
37 views

How to add IDs of the links composing a polygon?

I built up a polygon layer from a road network for finding roundabouts using the compactness factor of a polygon. Then I have to intersect the extracted roundabout polygons with the road network so ...
0
votes
1answer
17 views

Is it possible to show multiple infowindow?

I just started working with API Arcgis. I can not find a way to leave open the popup that I add with: mymap.infoWindow.setContent(); I wish that every click of a POI then opened his infoWindow. Is ...
2
votes
1answer
79 views

Is there an equivalent of ArcGIS Hyperlink script editor in QGIS?

I am trying to find similar functionality in QGIS to ArcGIS Hyperlink script editor. In ArcGIS I can parse VBScript from a selected field in an attribute table. The script would execute on mouse ...
1
vote
2answers
25 views

How to fill gaps in a multipart polyline

I want a function that can fill small gaps between parts of a multipart polyline. The parts may be separated by small or large gaps. I want to connect any parts that are separated by a small gap less ...
1
vote
1answer
93 views

Trying to use SQL API from Oracle PL/SQL to CartoDB

I am trying to make an http call from within an Oracle server to CartoDB. To do so I have developed a custom PL/SQL package that will generate the SQL and make the calls. A sample API call is below. ...
3
votes
0answers
29 views

Is there hydrologically correct water-course data for Africa

I was wondering if there are any hydrologically correct river-channel data available for download for Africa? By hydrologically correct, I mean the topology should be correct. Connected river ...
1
vote
0answers
18 views

How to create a Wrapper for mapserver

I want to create a wrapper for my server. (I use mapserver and apache on windows server) In this document ( http://mapserver.org/cgi/wrapper.html ) refer to suggestions: 1st : #!/bin/sh ...
2
votes
1answer
54 views

Count overlapping polygons in single shape file with R

I have a shapefile of species ranges for ~ 346 species. Some species have multiple polygon ranges so there are 1,078 polygons and many polygons are multi-part. It looks something like this: I ...
2
votes
1answer
21 views

Exporting results from Select By Location comparisons of each line in one shapefile with polygons in another?

I use ArcMap 10 and I am trying to export multiple selections (a.k.a 'Select by Location') from one file against another. I start by selecting the first line of shapefile A and I want to select all ...
1
vote
1answer
18 views

Comparing two maps with two different libraries

I'm currently making a demonstration to compare the two OpenLayers libraries (2 and 3). For doing this, I have made two div elements and put the different maps on each other. The goal is to make a map ...
5
votes
1answer
83 views

When to use Con or Reclass

This question was stimulated by a discussion between WhiteBox and myself. Both Reclass and Con (i.e. a conditional evaluation tool) are examples of tools that implement a Switch statement or nested ...
1
vote
0answers
35 views

Generating Canal on DEM using ArcGIS for Desktop?

I want to generate a canal going from point A to B with a given slope. The canal should be on the underlying DEM. Is there any way to do this with the tools in ArcGIS 10 or do I have to do it ...
1
vote
1answer
11 views

ol v.2.13 - Selecting features with draw or zoombox

I'm attempting to add a feature to a legacy mapping project. I need the user to be able to draw a rectangle and have the features/markers inside of it selected and pushed into the selected array. Is ...
2
votes
1answer
155 views

Openlayers map WMS stretched by latitude

I am working on a small javascript application for displaying map with WMS layers from 2 servers. The problem is, that image is stretched by latitude, it is wider, as it should be. This is is how it ...
3
votes
1answer
494 views

PostGIS: Merge multiple table with same GID

I just imported some shapefiles with the PostGIS importer. Because several errors and issues I had to split my shapefile in multiple parts. Then I imported them one by one. I thought I can easily ...
-1
votes
1answer
13 views

export from json file the coordinates

Hello i need help i cant export and print the coordinates , the format of json is came from a query in a database the format is ...
1
vote
1answer
48 views

How to open overlay content from leaflet popup

Hi! I am currently working on an interactive leaflet map. I managed to display markers from a database via php (create an array). Now I want users to create markers with a click on the map. To add a ...
2
votes
2answers
48 views

How can I identify types of crops in agricultural raster dataset?

I have some 2014 MrSID files from the National Agricultural Imagery Program (NAIP) that I've converted to TIFF files. I want to use them to find the area of tomato farms in a watershed. I'm using ...
0
votes
1answer
187 views

Creating MySQL database for storing imported KML?

I need to create a MySQL database for storing coordinates from a KML file with the structure as follows: <Placemark> <name>someplace</name> ...
3
votes
2answers
116 views

Order of polygon vertices in general GIS: clockwise or counterclockwise

Two days ago I asked a question about the internal storing order for the vertices of a polygon in ESRI shapefiles. That question was answered (Are polygons stored clockwise or counterclockwise in a ...
0
votes
0answers
21 views

Finding political party affiliation data for the US

My ideal find would be party registration or affiliation down to the household, Congressional district, block, block group or Zip code level for the whole country. I've been sniffing around for a ...
1
vote
2answers
36 views

How to create DEM from Lidar point cloud data?

I'm using ArcMap and I want to create DEM(s) over an area to have different outputs depending on which settings/filters I put in. I have access to laser point cloud data as my input files. I've worked ...
0
votes
1answer
22 views

How to group tools within a Python toolbox in ArcMap 10.2

I have created a simple Python toolbox at work for use in ArcMap 10.2. It is used by multiple members of staff so I'm hoping to make it as simple to use as possible. It currently only contains two ...
1
vote
3answers
29 views

Using an expression on the Label Manager tools

I am trying to display two labels in each polygon and I want that show One label in Year 1 and show another line showing in 140,000 acres. I will use that in the Label Manager and use it in an ...
0
votes
1answer
39 views

Is there a freeware alternative to Tableau 8?

Is there a freeware alternative to Tableau 8? One that allows me to use my own data (shapefiles)? Tableau 8 http://www.tableausoftware.com/new-features/8.0
0
votes
1answer
18 views

How do I organize labels on top or bottom, or right, or left?

How do I organize the labels in the layout, for example, I want the label Year to be on the top of the Acres. I tried variety ways to do this using the Label Manager but can't seem to get it right ...

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