0
votes
0answers
2 views

Adding Drawn Feature to existing Layer

-A layer that contains multiple features - I want to draw new features with new OpenLayers.Control.DrawFeature and to add them to my layer. var control = new ...
0
votes
0answers
2 views

ArcGIS 10.0, Field Calculator Nested “if” statement with strings

I need to assign a value depending on other two columns "FNP" and "Teilort". I wrote this script in phyton for field calculator. It actually works (no error messages) but the results in every cell is ...
0
votes
0answers
7 views

Why is the BING basemap in ArcView different from the one on http://www.bing.com/maps/

The quality of the original Bing imagery on the Bing Website is much higher. How can I get it into ArcMap? I read, that the ArcMap imagery BaseLayer is based on Bing service! South of Ouagadougou ...
0
votes
0answers
2 views

stitch bathymetry and dem in arcmap

I have a question, I appreciate that if someone can help me. I have a Dem built from Lidar data and bathymetry survey points for a river which flows on the dem surface. As you now Lidar data is ...
0
votes
0answers
3 views

extraction of metadata from gml file

I am in the need to extract metadata in XML format from a gml file following the standard ISO 19115 Can anyone suggest to me how to do that Is there any open source for the same
0
votes
0answers
4 views

Postgresql visualy coordinates

Hello i have in my mead to make an webapplication i use postgresql , php , html and javascript i recovery from database the coordinates with php and pass it in javascript heare is the code wich i ...
1
vote
0answers
10 views

Correcting addresses with Python or Model Builder

I am trying to make a script in Python (or Model Builder in ArcGis) for correcting addreses. I have a point-shapefile with the addresses(it has X and Y, and fields for "number","street name" and an ...
0
votes
1answer
12 views

How to draw a perfect circle with a set radius in meters on map?

Following this istructions on how to draw a circle I can make buffer layer on each point I need. I am not able to draw perfects circle because the buffer will be elliptic? And I am not able to set ...
0
votes
0answers
8 views

Open a *.qgs project file in API, why maps do not show?

I'm using QGIS-2.4.0 API. I saved a test.qgs file in QGIS Desktop, in this project, there is one layer that is visible in it. Then I open the test.qgs project file in QGIS API to developing an App, ...
0
votes
0answers
11 views

arcmap buffer geoprocessing range error

When I tried to create a buffer layer around a polyline layer. But I got the error as follows: The input was outside a +-360 longitude range or outside +-90 latitude. The input is : ...
3
votes
0answers
15 views

Why are my calls to SAGA routines in QGIS not working cross platform?

The ability to write and run cross platform scripts for QGIS using python is OUTSTANDING! However, when I try to run the SAGA:MERGESHAPESLAYERS algorithm from a python script it works fine in windows ...
5
votes
1answer
64 views

Making world map to show where hole drilled through centre of Earth starts/ends on land vs water?

I am discussing drilling through the Earth with my students. The classic cartoon version has a person drilling down in the United States and coming up in China, which has to be wrong because drilling ...
2
votes
0answers
12 views

How to preserve the order of fields when exporting a table from ArcMap?

ArcMap allows you to re-order fields in an attribute table, by dragging+dropping either within the layer's > Properties > Fields tab, or within the Table window. However, the order of the fields ...
0
votes
0answers
7 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
12 views

Storing the GML application schema in postgres

I have to store the application schema for a GML file which is in Xsd format in PostgreSQL table. I want to use the ISO standards for that. From what I have searched I think ISO 19109 has to be ...
1
vote
0answers
22 views

How to clearly display a huge shapefile with many point features?

I have two vector shapefiles, each with 54,000 features. When it's zoomed in on a small region, I can clearly see the feature colors: but as I zoom out, this is what I get: Any suggestions on ...
-2
votes
0answers
12 views

Navitel File Security

I worked for years to create a navigation map full of POIs... Is my file safe as .nm3 File? OR there is a way to edit it.+ If yes how can I make my file more secure.Thanks.
1
vote
1answer
8 views

Converting a large set of GRIB2 files to a spreadsheet format

I have a large set of .pgrbf.grb2 files downloaded from the Climate Prediction Center, and I need to run statistical analyses comparing them to data that was produced locally in .csv format. I'm not ...
0
votes
0answers
4 views

How to get a table from a leaflet map?

I have a map Here based on leaflet JS and the layers are geojson. I would like to get a table at on another div when I click on each layers. How would I be able to do that? Thanks
2
votes
1answer
32 views

How to delete a GeoServer coveragestore using REST API?

I was wondering if there is any example of using REST API with curl to delete a coverage store? I looked at the examples at the boundless website ...
2
votes
2answers
17 views

Return Image from WMS service

I asked this question, and I realize that I am going in the wrong direction. So, I would like to do this : var geom = new THREE.Geometry(); // push vertices here var some_material = new ...
1
vote
1answer
26 views

OL3 and Three.js

I have asked this question in stackoverflow, but got no useful answer - So perhaps I could get some help here. I would like to generate a 3d Terrain using THREE.js, and I would like to overlay ...
6
votes
2answers
58 views

Select by Attribute within a specific area (using Select by Location?)

I have a map with four layers. Two of these layers cover an entire state, and the other two focus on the area I'm actually interested in within the state. I'm trying to Select by Attribute with one ...
0
votes
1answer
20 views

osmosis library in java application

I want to do a navigation application OSM PBF files. I'm using the pbf files from the osm website. I was looking for a way to access the pbf files, I found that it can be accessed using the osmosis ...
1
vote
1answer
23 views

problem transforming CRS coordinates EPSG:4269 to EPSG:3857 in python

source_srs = get_srs(shp_abs_path) source_epsg = source_srs.GetAttrValue("PROJCS|GEOGCS|AUTHORITY", 1) print source_epsg #prints 4269 target_epsg = 3857 # because these are headed to leafletjs ...
-1
votes
0answers
14 views

Creating fileDialog for GDB using FileGDB_DotNet?

Is it possible to create fileDialog for geodatabase using FileGDB_DotNet? If so, how? I want same: if (Directory.GetFiles(newFileGeoDBpath).Count() == 0) { Geodatabase.Create(newFileGeoDBpath); ...
1
vote
0answers
11 views

FileGDB API for Visual Studio gives error?

I download API for vs 2008. When I try add reference VS show error: What can I do? Windows 7 64 bit dll too for 64 bit VS 2008
0
votes
0answers
21 views

Error with notepad [on hold]

I ran python script in notepad++ and I get this error Any help on this?
3
votes
1answer
27 views

Problem of irregular contour from a DEM

I've created contour lines every 5 meters from a grid DEM with 5x5 meter of resolution. But strangely I've obtained that the contour lines are segmented and rich of lines that goes up and down, ...
0
votes
0answers
12 views

r.univar - which format for working in GRASS GIS?

As part of a cut and fill-procedure,I want to run the command r.univar, but it returns with no output. I´ve been comparing the properties in the rasterlayer (rasterized vector-layer) with another well ...
1
vote
0answers
12 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 ...
0
votes
0answers
15 views

How to work with gdb from c#?

I have installed PostgreSql 9.3, PostGIS(last version) and Npgsql. I have geodatabase(tmp.gdb) how to make conection for this DB from c#? And how to connect this DB to PostgreSql? It possible to ...
0
votes
1answer
21 views

smoothing a set point in R

I try to smooth R with a set point as follows: myshp <- shapefile("C:/Users/zina/workspace/Proj_Meteo/interpolate/DZA_adm/DZA_adm0.shp") ...
1
vote
1answer
32 views

Flip multiple vectors

I have thousands of vectors (out of several million) which I need to flip, for directionally purposes (Network Analyst). The vectors in question are annotated that their directionality has been ...
5
votes
0answers
34 views

How to produce high-resolution DEMs from new Sentinel-1 data?

This is a general question relating to the new Sentinel-1 data. I'm interested in the potential for using this data to create high resolution DEMs in GIS (I use QGIS), to investigate archaeological ...
2
votes
0answers
23 views

SQL Query does not work in ModelBuilder (but works elsewhere)

I am having issues getting a simple SQL query to work in model builder. It works fine when I use it with the standard "Select features by attributes tool", but ModelBuilder doesn't find the required ...
1
vote
1answer
22 views

Create a new layer in PyQGIS with the same attributes of another preexisting and copy some elements in it

I'm new in QGIS and I'm trying to create my first plugin. I have a layer containing lots of elements of type Point, Line and Polygon. Suppose I want to create two new layers with the polygons above ...
0
votes
1answer
22 views

Get a list of layer names using PyQGIS

I need a list containing the names of all the layers in a QGIS session. I did the task as layersNames = [] for i in self.iface.mapCanvas().layers(): layersNames.append(str(i.name())) but this ...
2
votes
0answers
38 views

Issue with dissolving a polygons layer in QGIS 2.4

I downloaded a dataset of roads and parks from OSM. I then buffered the roads and merged with the parks. Now - all i want is to dissolve / union all the features in the merged layer. I fail to do it ...
2
votes
1answer
26 views

Saving Leaflet Maps in Database

I have a webpage with a Leaflet Map, I can add markers,filter markers and so on. My question is that how can I save it? Load the Map Add some Markers on the Map (Optional) Filter the Markers on ...
1
vote
1answer
27 views

How to save multiple layers from QGIS to a Spatialite db?

I thought I had asked this before but I can't find any trace of it. Each time I save a layer from QGIS as a spatialite it insists on creating a new db ( if you select a existing db you are asked ...
1
vote
1answer
23 views

QGIS: How to get Symbols saved in GPX Files

I have some waypoint layers that contain different types of points and I distinguish these in QGIS by different symbols and colours. I want to export these to a GPX file that I can download to my GPS ...
2
votes
1answer
14 views

How to derive the slope angle value from DEM?

I am trying to calculate the steepness of each pixels (30m) from the DEM of 2m resolution. I have made use of ERDAS Imagine - Slope function and returns a contour-like pixel image. The pixel value ...
0
votes
0answers
13 views

Importing raster and vector: GRASS GIS 6.4.4

Almost giving up on this task, and need some support. I´ve been studying GRASS GIS and training with some tutorials with The NC-dataset. What I want is doing the same task as the one called "Surface ...
2
votes
1answer
69 views

How to convert polygon singleparts to multipart?

I am interested in converting a polygon featureclass created via Create Fishnet (Data Management) from singleparts to multipart. QGIS has a very handy tool called singleparts to multipart that does ...
1
vote
1answer
20 views

Can I visualize MultiLineStrings in Google Maps

I have made a web application which retrieves roads coordinates from a Postgres database and I when I attempt to visualize this using Google Maps API nothing shows. I am trying to plot ...
2
votes
0answers
24 views

Geoprocessing tool for finding specific point within polygon

I have a ArcGIS task and cannot find a solution. I try to find a certain point within a polygon (see picture). This example is handmade and I need a geoprocessing solution I point I try to get is ...
-2
votes
0answers
31 views

US Census Geocoder returns different city that TIGER Shapefile data

When I geocode an address using PostGIS+TIGER 2013 I get a different city than what Census Bureau Geocoder reports. The Long/Lat are identical in both cases, but the PLACEFP is different although both ...
1
vote
0answers
20 views

Assigning widths to string fields using writeOGR() from rgdal?

I am currently working with MapInfo files in the .tab format. I am using R (3.1.0 for Windows) to read and write files in this format, however, I am encountering an issue with writeOGR() from the ...
2
votes
1answer
16 views

Harvesting pixels using GRASS GIS

having a binary raster map of pixels of interest, a road network, and a target point, my goal is to get a raster map with network pixels having as value the number of pixels of interest they allow to ...

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