0
votes
0answers
12 views

calculate real meters in epgs 3857

I use ol3 as a map service. I have made a linestring with tow points [[0,0],[0,1000]] and calculated the distence using vincenty formula it was 1000 meter which is accurate. But when i made another ...
0
votes
0answers
15 views

UniqueValueRenderer on GUID fields doesn't work

Have anyone been using ArcGIS UniqueValueRenderer on attribute fields of type GUID? I've created a UniqueValueRenderer that has a default symbol. If I do: renderer.Fields.Add("OBJECTID"); or ...
1
vote
0answers
12 views

Marker Line Symbol with Character Marker Symbols gets grayed when published to map service

After publishing as Map Service character marker symbols become grayed even if their colour is black in definition. This odd behaviour happens in ArcMap 10.2.2 and ArcMap 10.3. Are there are any ...
0
votes
0answers
10 views

NDVI for natural region

I have a question about remote sensing, I appreciate that if somebody can answer to me. I have remote sensing data which I have got from landsat 7. The area which I am working on is combination of ...
0
votes
0answers
8 views

qgis 2.8.1 arcgis filegdb incomplete list in win-version

i am running qgis 2.8.1 (OSGeo4W 64bit-version) on mac (10.10.3) and win (7) ... and was just recently confronted with different behavior of both versions when trying to open (ESRIs) file.gdb. the ...
-1
votes
1answer
14 views

Latitudes and Longitudes in Atlas

I have seen some Atlases and Maps where North or South or plus(+) for North or minus(-) for south is not mentioned/suffixed with the degrees of Latitudes in the graticules. Is it correct? How will a ...
0
votes
0answers
25 views

Get min/max value of each band from landsat image?

I am trying to get min/max value of each band from Landsat image with the following code. from osgeo import gdal raster = "raster.tif" # load raster gdalData = gdal.Open(raster) # get number of ...
0
votes
0answers
13 views

How to add vector layer in Open Geo Suite?

Plugin for the add vector layer:- OpenLayers.Layer.Vector = OpenLayers.Class(OpenLayers.Layer, { isBaseLayer: !1, isFixed: !1, features: null, filter: null, selectedFeatures: null, ...
0
votes
1answer
11 views

How to update data in Leaflet Control?

I have a Leaflet map with a control to switch between various basemaps or toggle on/off some overlay data. //Basemaps are all a-okay //Start with no polylines in my overlayData items = []; ...
0
votes
0answers
6 views

How to configure a available feature types in GeoServer using python gsconfig

How to configure a available feature types in GeoServer using python gsconfig? I have created work space and data store using gsconfig. Now , how i can configure available layers in a exist data store ...
0
votes
0answers
21 views

Inserted feature attributes always null

I'm using Arcgis Silverlight API 3.3, connected to Arcgis Server 10.0, connected to a Map Service with Feature access (Edit is enabled). Using the Drawer object, I let the user draw some features ...
1
vote
1answer
23 views

Clipping rasters

We are clipping one raster to another and our teacher gave us this hint for the 2nd parameter "Remember that the Describe function returns an object. The Clip tool will need the string representation ...
0
votes
1answer
24 views

Use turf.count with turf.buffer dynamically

I have this code where I'm trying to create a buffer dynamically from a draggable marker and then count how many points fall insed this buffer. As of now I can drag the buffer around without any ...
1
vote
0answers
12 views

Is there a “SnapToLevels” property in ArcGIS Runtime SDK for .NET?

In ArcGIS Runtime SDK for WPF, I can set SnapToLevels as True, so when I zoom the map, it will snap to scale levels if the map contains cached layers. However, I can't find anything like SnapToLevels ...
1
vote
1answer
29 views

jpg to geotiff transformation with gdal_translate and gcps fails

I am trying to create a geotiff from a jpeg by inputting gcps with gdal_translate: gdal_translate -of GTiff -a_srs EPSG:4326 -gcp [1616.0 0 -121.459869532 38.5822533549] -gcp [0 0 -121.460081357 ...
1
vote
1answer
24 views

Create a PLSS quarter-quarter grid using QGIS

Is there a way to create quarter-quarter sections (of the PLSS township/range/section grid) using QGIS? I've already found http://ianbroad.com/creating-quarter-quarter-section-grid-python/ but using ...
0
votes
0answers
14 views

Mapyx Quo inaccuracy

I am in the middle of switching from Mapyx Quo to QGIS and have come across a problem. The co-ordinates of points shown both on aerial photos and maps differ by about 10m between Quo and QGIS. I ...
0
votes
1answer
24 views

Problem with attribute field in rasterizing tool QGIS

I am trying to rasterize a vector layer using the "rasterize tool" in QGIS... The problem is that there is no "attribute fields" available to choose from (even though they exist!)...
0
votes
0answers
14 views

gdal_merge tries to create image with negative dimensions

I am trying to use gdal_merge.py to create a mosaic from a set of geotiffs, however the command fails with the error message: "ERROR 1: Attempt to create -3510x1817 dataset is illegal,sizes must be ...
1
vote
1answer
23 views

Setting junction properties in ArcGIS Desktop?

I have a situation where I have a line feature class and need to build a network out of it. The lines represent roads. I wonder how I can model the intersections on the network. Almost all of them ...
0
votes
0answers
6 views

Trying to change the transparency of a KML file for use with Google Map Maker

I've been stuck with this problem for quite some time. I'm doing a project which includes updating the Google Maps for my area. I know that I have to use Map Maker to do this. However I'm trying to ...
1
vote
0answers
21 views

Where to find QGIS geoprocessing results?

Is there a way to access in QGIS 2.6.1 something like the Geoprocessing Results window found in ArcGIS? The History and Log window in QGIS appears to show the geoprocessing results from SAGA, OTB ...
0
votes
1answer
26 views

Automatically split KML into point, line and polygon SHPs?

I have a lot of KMLs that include points, lines and polygons together, is there a way to automatically parse them into separate shapefiles (one for point, one for line, one for polygon) in QGIS or ...
2
votes
1answer
35 views

Tool Bar visibility in PyQGIS

I am creating a plugin for Qgis 2.6 and when my plugin loads up i want to disable the visibility of some of the tool bar. I was able to set the visibility for various tool bars like ...
0
votes
1answer
38 views

Polygons of countries including territorial waters

Where can I get polygons (multipolygons) of all countries of the world including the territorial waters of the countries? OpenStreetmap displays these areas but I can't find an extract of this ...
1
vote
1answer
26 views

ArcObjects/Python: Add JPG to layout

I am attempting (and failing) to add an image to a map layout using ArcObjects via Python comtypes. I do need to run this outside of ArcMap (i.e. not in the ArcMap Python window). The basic idea is: ...
0
votes
3answers
57 views

How do I calculate distance to water in ArcGIS?

I am using ArcGIS 10.2, it has been a while since I did GIS. How do I calculate the distance between several points to the nearest line (trying to figure out the distance to water from several ...
0
votes
1answer
26 views

QGIS (2.8) Generate a series of map for each field of the attribute table?

I have a shapefile with more than 30 columns (or fields) in the attribute table. I would like to automate the creation of one map for each of them. I gathered that the QGIS Atlas generator can do ...
1
vote
1answer
22 views

Adjacency matrix from polygons in GeoJSON

I have a set of polygon features in a GeoJSON file. They are neigbourhoods in Chicago. I would like to produce an adjacency matrix A, in CSV format or any other form, where the i,j element of A is 1 ...
1
vote
1answer
8 views

Is there a URL I can post to my geoserver that confirms that I properly installed the GDAL plugin?

I'm running geoserver in Tomcat and went through the process of installing the plugin for GDAL formats. I specifically need NITF. Is there a URL I can post to my geoserver that confirms that I ...
-1
votes
0answers
23 views

Converting INQ-UNIX ArcView3 & PC ArcView3 in to ArcMap [on hold]

Hi i have base map developed in the INQ-UNIX ArcView3 in coverages, I need to use this data and create shapefiles in ArcMap.... any suggestions
0
votes
0answers
25 views

Import addresses from an Excel file via Python for route optimisation

relative newbie here. Apologies if this is very obvious or basic! I have created a route optimisation model through ArcGIS modelbuilder, then exported the Python script. Within the model I had a ...
0
votes
0answers
36 views

Term for combined Raster and Vector data [on hold]

Is there a GIS term for a single feature that contains both Raster and Vector data? IE: A topographic shaded relief raster that also contains the vector elevation data? I am working with GRID data ...
0
votes
0answers
37 views

File GDB Edits Never Written to Database

I left ArcMap open for a week or maybe more, during that time editing/saving and working in my map document. Apparently, this is not a best practice. I say this because the edits I made for several ...
0
votes
0answers
14 views

Command Grass in QGIS not work

When I use r.contour or other Grass commands in QGis, I have this error message. Why?
1
vote
0answers
14 views

QGIS - r.* commands not found

I'm very new to GIS and have recently installed QGIS on my mac desktop computer, running Yosemite 10.10. I'm working with DEM data for stream network extraction, but the majority of grass raster ...
2
votes
0answers
22 views

Geodatabase Archiving

I'm trying to figure out a way to update the schema of an archived feature class. There was a lot of discussion about this from 2012 and prior. https://geonet.esri.com/message/115340#115340 < -- ...
0
votes
1answer
38 views

Looking for Employment Density Data: Employees per square foot by industry by county* (USA)

What I'm looking for something like this: http://www.bls.gov/cew/ew07fig20.pdf For those that can't see it, the second page of the PDF has a map of Employment density within manufacturing by county, ...
1
vote
1answer
32 views

Publish a Leaflet map with vector overlay on a WMS server (e.g. GeoServer)

Is it possible to set up a WMS server (I am a bit familiar with GeoServer so this would be my preferred option but of course I'm open to learn something new...) that publishes an instance of a Leaflet ...
1
vote
1answer
16 views

Querying Raster Dataset by Location to Study Area

I have downloaded a very handy raster dataset generated by the Nature Conservancy for identifying terrestrial habitat cover types in the north east. Link to the project info and a link containing a ...
2
votes
2answers
27 views

Assigning Default Value Using ModelBuilder?

Task: add several new fields to a feature class table and assign a default value to one of the fields. Software/Environment: Using ArcMap 10.2 (Advanced License) and Python 2.7. Data is stored in ...
1
vote
1answer
21 views

Tile services ON TOP of default CartoDB Basemaps?

I'd like to place a tile service of a georeferenced map from DavidRumsey.com in a CartoDB map, but I don't want it to be the 'basemap'. I want it to lay on TOP of the basemap, which would be any of ...
0
votes
0answers
19 views

Get next point horizontally and vertically

I am working on a map application. We have to draw polygons for different sections. Each section is either a square or a rectangle. Data that I have has less than 4 coordinate points, insufficient to ...
1
vote
1answer
17 views

Set up GDAL for C++ in RHEL

I've got GDAL installed from the latest 1.11.2 source, but when I try to make by C++ executable I get undefined references to "GDALAllRegister" and basically all the GDAL functions I call. The same ...
1
vote
1answer
35 views

How to use a different projection than EPSG:3857 with CartoDB or Leaflet?

I have data that is accurately positioned with the NAD 83 MTQ Lambert EPSG:3798 projection. If I reproject this data in EPSG:3857 (web mercator) the markers are no longer positioned accurately on the ...
3
votes
2answers
91 views

Calculate geometry on some features have same X and Y for start and end?

I did "Calculate Geometry" on a line shapefile to obtain the coordinates X and Y for the start and the end of all the lines of the shape. But some lines resulted with the same X on the start and on ...
0
votes
1answer
14 views

Need statistics from US census [on hold]

I am not sure if this is the right place to ask, if so please recommend a stackexchange, I am having a lot of issues getting the data approximations that I need for a report. I am looking for the ...
0
votes
0answers
18 views

Linking ISO 3166-1 and 3166-2 with postcode data

I understand that ISO 3166-1 and 3166-2 model the 'geo-administrative domain' of the world up to a certain subdivision level. I am mainly focused upon the UK and would like to link postcodes to these ...
0
votes
1answer
101 views

What are the skills a GIS Expert needs to have? [on hold]

The last years I have wondered many times what are the skills a GIS Expert needs to have. I have studied Geology and upon that I did my master in Geoinformatics. Although right now is clear for me ...
1
vote
2answers
44 views

Plotting points using coordinates from excel [duplicate]

I have an excel spreadsheet with co-ordinates (eg. S31 07 35.3). I would like to use these co-ordinates in arcmap (version 10.2) to plot points based on these coordinates. How do I go about doing this ...

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