0
votes
0answers
11 views

Geoserver meta-tiling factors

I am trying to setup meta-tiling in Geoserver 2.8.0 (I can version up if necessary) in order to prevent multiple labels on polygons which span across tiles. I am using Leaflet (1.0 RC) on the client. ...
0
votes
0answers
3 views

Filter geoserver layers based on postgis geometry

I am wondering how, and if it is possible, to filter a geoserver's layer (from a large shapefile) on a specific geometry coming from a postgis table. I have a huge shapefile for a country but I'd ...
0
votes
0answers
30 views

Map Projections - WHAT?

I have a problem (C#.NET): What I have: Points with a coordinate (Lan & Lon) A canvas (WPF) with a dynamic size A control which represents a point A zoom factor, the kilometres from right to ...
0
votes
0answers
5 views

Looking for a web service to return landcover/landuse data based on Long/Lat

I am looking for an web based API to get location data based on Latitude and Longitude that will return landcover/landuse feature data for a mobile app. It will preferably return the data in a json ...
17
votes
3answers
13k views

Differences between Raster Dataset, Raster Catalog, and Raster Mosaic

I have about 40 scanned, colorful Geology maps that are GeoTiffs. I want to bring them into an Esri FileGeodatabase to lower their size, combine them as one and display them with a mostly transparent ...
0
votes
1answer
12 views

Problems with 'layer exists ' while running ogr2ogr

I run command: ogr2ogr -f PostgreSQL PG:"dbname=regional host=localhost user=*** password=***" Hsp_09_13.MIF -t_srs EPSG:3857 -nlt MULTIPOLYGON -overwrite -nln postcode_sector_boundaries And I have ...
0
votes
1answer
12 views

How to (precisely) re-align a polygon

I have this shapefile and I want to re-align the selected polygon (See image below) to the shapes of the other polygons. I tried using the "edit tool" but it's not producing a good result. What would ...
0
votes
0answers
4 views

Publishing kml service

- using arcgis platform, i'm publishing Arcgis map service from Arcgis server 10.1 with kml capability enabled,publish completes successfully, published data is in coordinate system ...
0
votes
0answers
9 views

How can I use ST_Intersection with two rasters?

I need to query all values in raster A which intersect with raster B. Found this, but it's not accurate, and I'm getting ERROR: column reference "rast" is ambiguous. WITH first AS ( SELECT id, ...
0
votes
0answers
7 views

Error connecting to PostgreSql 9.2 using Autocad Map 2011

I want to connect Postgresql 9.2 database (installed at localhost , port-5432) from AutoCad Map 2011 (installed in same PC). I have successfully copied all required dll files (total 13 nos.) from ...
0
votes
0answers
2 views

Update Hosted ArcGIS Feature Service Schema Issue

I am trying to update a field length of a hosted feature service in ArcGIS Online. I load the update definition page by going to the Admin REST page of the service, and clicking Update Definition: ...
0
votes
1answer
13 views

Missing connection from programming to standalone applications

The last five years during my studies of Geoinformatics, I gained a deeper understanding of programming and developed my programming skills where I feel quite save in Python (especially ArcPY), Java, ...
0
votes
0answers
6 views

Comparability of Landsats

I have collected data (spectral bands) from Landsat 4-5 and Landsat 8. I was calculating NDVI when I noticed that the two Landsats have different band numbers designated as Red and Near Infra Red ...
0
votes
1answer
200 views

How to remove duplicate points based on other attributes

I have a point dataset of hundreds of thousands of points (zip+4s), many of which share the same value for one attribute (zip+4), but have different values for other attributes (ex: address). In other ...
0
votes
0answers
4 views

How to modify templates on GeoNetwork 3?

I'm using GeoNetwork 3.0.4, and I see you can create your template from another template. So far so good, but I'd like to duplicate some fields there, for example: there's a metadata date field, and ...
2
votes
0answers
65 views

How to generate surfaces of different heights from LIDAR points

I am seeking a way to generate surfaces (polygons in a 3D space) of different heights from LIDAR point clouds.The typical application is like roofs, which may include holes, due to different heights. ...
0
votes
0answers
5 views

pyQGIS - hide loading gml dialog

Using pyQGIS, is there a way to hide the loading gml dialog when making WFS http requests via a plugin (for QGIS versions >2.4): After running this statement the load dialog shows: ...
-1
votes
0answers
12 views

Clustering of Spatial Data in R or Python

I am a newbie. I have a large set of (latitude and longitude)spatial data. I am confused on which clustering method to adopt. I have came across two density based approach: DBSCAN and OPTICS. I am ...
1
vote
1answer
19 views

How to load the only selected features from the layer in postgresql to Qgis canvas

I am using the uri to load the layer from the postgres to qgis canvas but it is not loading the selected features without where condition it is loading the lAYER. canvas = ...
1
vote
1answer
13 views

Problems with dividing multipolygons into polygons

I have a shapefile with countries boundaries downloaded from here and I am trying to upload it to PostGIS database with ogr2ogr. This file contains features of polygon and multipolygon types and ...
1
vote
1answer
29 views

To check if a geometry is contained in a geomtery collection in postgis

How can I check if a geometry is contained in a geometry collection ? Specifically , I am using ST_ClusterWithin in PostGIS to get a cluster which returns each cluster as a geometry collection. Now I ...
1
vote
1answer
350 views

problem with popup conclusion on pressing a marker

I have markers on pressing to which popup has to be brought. how to make it? (coordinates of markers undertake from a DB) var map; var markers; function ejecutar() { init(3); ...
2
votes
2answers
1k views

How to connect Postgis database with/in Remote Servers…?

I am preparing a 'Web based map' application using 'Geoserver-Openlayers-Postgis'. I am trying to connect my Postgis database(located at 10.50.110.11 location) with the following command from ...
2
votes
2answers
396 views

How to run QGIS server on EC2 micro?

I'd like to learn something about web maps and so decided to start out using EC2, following different tutorials I was able to start a micro instance but I can't find my way on how to get qgis server ...
0
votes
1answer
206 views

Software to draw graph from OSM map?

I am new in OSM, I have downloaded the data of my map from OSM using the JOSM and i have saved it in a *.xml format. I'm trying to convert a nodes and a edges (ways) from a OSM map to a graph ( ...
1
vote
0answers
64 views

How to change featurelayer symbol in ArcGIS silverlight API?

I created a webgis using ArcGIS silverlight API . my map contains network ( roads) and some points. The user want to change the network color. Is there any solution to change the featurelayer symbol ? ...
0
votes
0answers
19 views

Installing QGIS plugin through the Plugin Manager Error

I am trying to install plugins through the Plugin Manager v2.10 and am getting the error: Plugin installation failed:Error downloading http://localhost/plugins/photo_to_kmz/version/2.10/download/ - ...
0
votes
0answers
11 views

Displaying symbols correctly in legend in ArcGIS Desktop after PDF Export?

I am trying to create some maps in which have some point symbols. when I export the layout to pdf, the symbols are not appear. I have read some similar questions in the group but were not helpful for ...
1
vote
1answer
16 views

QGIS: use SVG file as a layer?

I am new to QGIS, so be patient with me if this is rather basic. (And I am still learning the terminology as well.) I have a very nice, and detailed vector map in an Adobe Illustrator format. I can, ...
1
vote
0answers
75 views

Use cython in QGIS?

I've wondered for some time how to use Cython in QGIS. I know I can integrate a Cython code in python, but I want Cython to handle QGIS classes. QGIS is built upon QT, every qgis object is a qobject ...
0
votes
0answers
6 views

R-Studio0.99, How to compute correlation between two rasters and serial correlation

I am using R.Studio0.99 version installed on my HP Laptop 4th generation (8GB RAM) windows 8 operating system and I know how to use R studio and some of the library to incorporate spatial data ...
2
votes
0answers
47 views

How to speed up work with local maps in QGIS?

within one project we are distributing a QGIS project including offline maps (you can get it here - has about 1GB) to display measurement data. Looks this way: I need to keep it as easy as possible ...
1
vote
0answers
16 views

QGis through python script : no map exported (map will be printed here)

I am very new to GIS in general and even more to QGis. I have a pretty simple task which is to import all shapefiles in one folder, style them and finally export them. I have wrote python code that ...
1
vote
0answers
4 views

Access Elements in SVG with Openlayers 3 using forEachFeatureAtPixel()

I am trying to access elements (id, style) of a SVG image in Openlayers 3. I tried to link different examples, but the problem is that displaying a SVG is only possible with ImageStatic() and the SVG ...
0
votes
0answers
13 views

Clip raster using a shapefile of 5500 polygons

I have a nightlights raster file of India, and i want to clip it using the block shapefile for India. There are 5500 blocks. But I can't find a unique attribute(except for serial no.) to clip the ...
0
votes
0answers
3 views

Counting number of raster groups within buffer layer?

I am trying to count the number of times each category of a raster layer appears in a buffer square. I have attached a picture to help explain. In the picture example I would want the 'red group' to ...
0
votes
0answers
9 views

How to delete entries of attribute table according to a list in python [on hold]

I have a shapefile which contains about 1000 rows in the attribute table and a .csv file which contains about 30 names of species. What I want to do is to delete only the entries of the shapefile ...
1
vote
1answer
22 views

PYQGIS Layer to KML?

I am aware that it is possible, in QGIS, to save your Vector Layer as a KML file manually, however, I want to know if there is anyway I can do this programmatically from an external Python Script that ...
2
votes
1answer
13 views

AttributeTable sending an alert that data was not found when clicking on table row

I have an AttributeTable that I have opening when I start a widget. When I click on a table row in this instance, I am able to get the information back correctly and not see this message. I did this ...
1
vote
0answers
58 views

Get number of intersected points based on attribute

I am trying to get a number of points in polygons based on row values, and write them into attribute table of polygons. I have polygon (Zones), and points (Objects with fields such as schools, ...
4
votes
2answers
125 views

Programmatically finding polygons which are >90% overlapped by another vector polygon layer using QGIS?

I'm trying to figure out how to use python to extract the polygons in one vector that are overlapped by >90% by another vector. I would then like to have a vector/map that will only show those ...
3
votes
1answer
30 views

Set transparency on an extent indicator in ArcMap

When creating an extent indicator in ArcMap 10.3, is it possible to set the transparency of the background colour of the extent indicator frame? I want the extent rectangle to have a colour fill, but ...
0
votes
1answer
218 views

Why aren't my hyperlinks saving in ArcGIS 10.2

I have a polygon layer and I have a joined table with a link to an excel document for each polygon. Under the "Display" tab in layer properties I check the "Support Hyperlinks using field:" box and ...
3
votes
1answer
37 views

Create an optimised path between nodes avoiding polygons entities

I have a point shapefile representing seaports. I have the linear cost of shipping for every seaport pairing (specific shipping cost to go from one point to another point). I want to find a way of ...
0
votes
1answer
7 views

how to add image links in Geo json object toget the images in pop up using openlayers 3

presently Iam working On Openlayers 3. I have added a geojson file to my map. when i click on a geojson feature iam getting a pop up which is displaying geometry and co ordinate values.i want to ...
0
votes
0answers
5 views

NVIZ not installed/working?

I am running GRASS GIS 7.0.4 on Ubuntu 16.04. After completing a tutorial on extruding vector data, I tried running the nviz command to see the result in a 3D-view. This is in norwegian, but it ...
1
vote
0answers
22 views

What is 'data source encoding' in QGIS?

I'm running QGIS 2.1.4 and Windows 7. For each layer, under properties there is a drop down box called 'data source encoding'. Mine is set to 'system'. I am wondering what this means, there seems to ...
2
votes
0answers
37 views

Reading Jp2 compression level using ArcPy?

Is the compression quality level used to create a JPEG2000 image stored somewhere inside the file, and how to read it? I would like to know if my images where generated using a lossless compression ...
3
votes
2answers
38 views

How to Select a Polygon beneath another Polygon in QGIS 2.14

We have a series of layers that contain polygons with additional polygons 'underneath' each polygon. How do we select the polygon beneath the existing feature without also selecting the feature ...
0
votes
1answer
1k views

Bootstrap navbar and leaflet zoom controls

I'm using the THE MAP GUY(DE) Bootstrap temple and applying it to leaflet using the code below. The issue I'm having is that the zoom-control doesn't toggle right on page load. It will only after ...

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