0
votes
0answers
2 views

where is the sequence in Oracle associated with the Objectid field in ArcGIS?

I am working in ArcGIS with non-spatial oracle tables. These tables have an objectid because were created for inserting, updating records by using the Arcmap environment. However, my goal is being ...
0
votes
0answers
3 views

Gdalwarp with “out of globe” values in sinusoidal projection

I want to project a global image from WGS 84 to sinusoidal, using gdal 1.11 and bilinear resampling. It work fine BUT I have values everywhere on the rectangular extent of the projected dataset. That ...
1
vote
1answer
30 views

Concatenate fields value excluding empty values

I need to concatenate the value of two fields excluding empty values, using Field calculator. The fields are: AREA_HI and AREA_LO I have tried using a Python script but ArcGIS returns an error ...
0
votes
0answers
4 views

Geoserver Image Mosaic Plugin - Index Table - ORACLE

On my current project we are using a Geoserver ImageMosaic to display aerial photography for England. We are also working to enable the TIME attribute on the layer so that we can display historic ...
0
votes
0answers
2 views

Drag and Drop in Openlayers

I have a number of vector layers, I want to be able to drag a feature off the map and drop it into a native application. Note, I do not want to move the features around, I already do that when in a ...
0
votes
0answers
3 views

Are there naming rules for direct connections from ArcGIS to PostgreSQL?

I don't have problem direct connecting arcgis to postgresql if my database name contains only letters, but when the name contains dashes or underscore e.g:"gisdb-dev", I receive an error when setting ...
0
votes
1answer
4 views

Geoprocessing tool Difference from the Terminal?

I have used QGIS Geoprocessing tool Difference to cut polylines (SHP) into to smaller pieces using a polygon (SHP). This works very good in QGIS. Now, to speed up the process, I'd like to be able to ...
1
vote
1answer
790 views

Texture overlay in d3 map

D3 map can be drawn and colored as shown in this example : http://techslides.com/demos/d3/d3-world-map-zoom-points.html. I need to overlay a texture or image within the boundary of a given country. Is ...
0
votes
0answers
9 views

Mosaic many rasters in ArcGIS is slow

I am trying to merge 166 tiles into a single world raster (500 meters resolution) through ArcGis "Mosaic to new raster" tool with a simple Python script. The process seems incredibly slow. Before ...
0
votes
0answers
18 views

How to store lat/long in PostGIS database?

I have a bunch of points in a text file that are represented using lat long (116.3158516 39.9748016). I import them into my GIS enabled database and create trajectories using st_makeline() as ...
-1
votes
0answers
10 views

Creating polygons using exact measurements? [on hold]

How do I create a polygon using the exact measurements (in metres) in ArcMap 10.2?
2
votes
4answers
32 views

How do you generate WKT from a graphic drawn on a map?

All, In order to do some quick analysis using SQL spatial, I'd like to generate spatial objects using the STGeomFromText / ST_GeomFromText function. With point data, I can do this by geocoding an ...
0
votes
1answer
90 views

request two layers in search action of one PanelForm

here's my case: i have a panelForm with 4 fields, and a search button, that search for the features that correspond to the 4 fields given by the user. and i have two layers that both contains the 4 ...
1
vote
1answer
36 views

How to add Mapserver WMS to Openlayers 3

I have a WMS server on localhost (using MapServer and Apache and Windows). I want to add my WMS to Openlayers. but any example that i found use openlayers 2. How to add MapServer's WMS to OpenLayers ...
0
votes
0answers
7 views

Adding a google Maps Layer to OpenLayers 2.14

I have a well-working map consisting of several layers in OpenLayers retrieved from geoserver. Now, I want to add a Layer from google maps. Since I did not find any working explaination in the web - ...
0
votes
1answer
12 views

Extract all unique values from a RGB raster

I have a .png file in RGB format showing the intensity of ship traffic: For my analysis I need to convert it to a one-band raster with values between 0 and 1 where 0 means lowest density and 1 ...
0
votes
0answers
17 views

Get layer name by click on features OpenLayers3

I want to add selec interactions to my OL3 map. Adding two different select interactions like this is not working. Only the second one works. Like this: var select = new ...
0
votes
0answers
7 views

QGIS 2.4.0-Chugiak: How to produce raster colour map

By carefully deriving the NDVI values from Landsat Band 3 and Band 4 after doing atmospheric correction by applying DOS1 method in semi-automatic classification Plugin QGIS, I was to calculate the ...
0
votes
0answers
4 views

How can I keep selected the output feature elements from a toolbox?

I have a simple toolbox (ArcGIS 10.0) From some selected elements from one layer, the tool, create a new one. I want that all the elements inside this new layer keep selected at the end of the ...
1
vote
1answer
86 views

ArcMap “Could not open the specified file”

Has anyone ever encountered this message? I am getting this when I try to open certain shapefiles. I am working on a problem that generates shapefiles from spreadsheets using ThinkGeo's .NET tools. ...
0
votes
0answers
3 views

Harvesting GeoNetwork with WMS

I want to harvest from a WMS service like https://nsdiindia.gov.in/nsdi-portal/index.jsp in my geonetwork node and for which I am providing the details as given in the documentation but I am getting ...
2
votes
0answers
8 views

Double transformation of marker in Carto CSS

I need to show on the map the direction of the road traffic with arrows. For this purpose I use markers for Carto CSS in TileMill. If the road has in OSM tag oneway="yes" or oneway="1", all is ok, ...
1
vote
1answer
19 views

How to use qgis coordinate transformation in user code

I am now working with coordinate transformations between different CRSs, e.g. latlong to UTM. After comparisons, I found out that the coordinate capture plugin in QGIS is quite accurate for the ...
0
votes
0answers
4 views

ISO 19110 in Geonetwork

I am using Geonetwork for metadata storage and search and from what I have found I got to knoew that it does support the ISO 19110 meant for the feature catalog but I want to know where do we add the ...
15
votes
3answers
3k views

Visual Impact Assessment in QGIS or GRASS

Is it possible using QGIS or GRASS to perform a Zone of Visual Impact assessment? E.g. where can a 100m high structure be seen at a viewing height of 1.8m within 30km, taking into account elevation ...
1
vote
1answer
17 views

Example of how to display a Cartodb layer (using the layergroupid) after initializing a named map?

I have successfully created a named map. I can initialize the map (as seen here), and I do get the correct response. Now, to my problem. How do I show this layer (using the layergroupid I got as a ...
2
votes
1answer
216 views

How to Map Latitude/Longitude to FAA Chart?

How can I map latitude/longitude to an FAA digital chart? Attached is a sample GEOTIFF. More specifically, how can I get a reference points from the digital data? Once I can get reference points, I ...
0
votes
1answer
50 views

Find Minimum Value of Point within a buffer output as a point file

I have a series of 30m buffers along a polyline (river). Within each buffer I have a series of points each point represents a 10m x 10m cell with an elevation value known as "Elev". I want to find ...
2
votes
2answers
96 views

Using Python to shorten polylines of varying lengths by 44% of their original length (or by a value contained in a field)

I have a feature class containing tens of thousands of polylines of varying lengths that were constructed from only a start and end point (of note, they are all at different angles, and many lines ...
1
vote
1answer
15 views

How to start GeoServer on OSGeoLive automatically

I want to use OSGeo Live VM 8.0 as a test GeoServer. Following its website, I started the server by Select the Geospatial ‣ Web Services ‣ GeoServer ‣ Start GeoServer in the menu But after ...
2
votes
1answer
167 views

How to create multiple buffers around line at equal intervals without typing in every value?

I have a line in ArcMap 10.2, and want to create lines to the right of it at 100 m, 200 m, 300 m etc. up until 1.7 km. Obviously typing in these values under 'multiple ring buffers' will take too much ...
6
votes
3answers
3k views

How to debug “msProcessProjection(): Projection library error. no system list, errno: 2” error in mapserver?

I think I have a misconfiguration in my mapserver that is preventing it from serving up imagery. In my map file, I have this section: PROJECTION "init=epsg:4326" END If I leave that ...
2
votes
2answers
28 views

Can pgr_dijkstra use a boolean column for routing?

I want to use Dijkstra algorithm. I would like to have the algorithm find a route based on a boolean traffic column, using only roads where the boolean column value is true. The code below does not ...
11
votes
5answers
795 views
+100

Are any fictional worlds available in some GIS format?

Is there any fictional world (e.g. Middle-earth, Discworld etc.) which could be used in a GIS context? For example, an MBTiles archive and a shapefile or any other format usable with OpenLayers / ...
1
vote
1answer
16 views

How to clip buffer polygon from its source line?

I'm trying to clip a 30 meter buffer polygon built around a highway line feature using a smaller 6 meter buffer that represents the actual width of the road, so that the original 30 meter buffer is ...
0
votes
0answers
3 views

How to export (only) final iteration from modelbuilder?

I'm using an iterator in Model Builder (1) to merge files, using a feedback loop (2). The output file is named "Output_%n%.txt", (3), so each file is unique. Now, I'm merging a fair number of files, ...
0
votes
1answer
15 views

QGIS 2.4: How to get Atlas to print all features not just the one visible in preview

I have a number of "zones" described by polygons that I use to produce a set of larger scale maps that I used to export into a pdf. This has stopped working (when I moved to 2.4 ??) and now I ...
0
votes
1answer
462 views

ArcPy SelectLayerByAttribute Error and how to control GP output layer name

I have a rather long script that first references an SDE feature class (non-versioned) to perform an attribute selection based on a SQL selection. I've been unable to figure out why the script will ...
2
votes
1answer
288 views

How to write addressToLocations onError?

How can I write a code for checking the error condition in Javascript (ArcGIS) for addressToLocations(params, callback?, errback?). if somebody entered an invalid address- how can I call error ...
1
vote
1answer
24 views

ogrListLayers() in rgdal returns character(0) for a kml file

I try to read a kml file in R. In the past, there was a post (link). I checked stack overflow and found similar posts. By following the examples, I was trying to read a kml file. I could read the kml ...
0
votes
0answers
21 views

Exporting a shapefile with geodetic values in geotools

I have collections of polygon features. Each point in a polygon has local cooridantes (x y values) and geodetic Coordinates (latitude and longitude in decimal degree) i can easily export the shape ...
2
votes
1answer
775 views

How can I relocate a georeferenced image, shapefiles and grid using Spatial Adjustment tool?

I somehow georeferenced an image about 120 miles east of where I should have georeferenced it. This should be a simple fix, except that I then proceeded to digitize that extremely detailed image ...
0
votes
1answer
264 views

Does QGIS support vector Rubbersheeting? [duplicate]

The task is to rubbersheet two vector layers one with a projection like UTM WGS 84 Zone 45N
0
votes
0answers
20 views

How to do rubbersheeting? [on hold]

I did Geo-referencing using a Google earth image of my house but my teacher wants me to do rubber sheeting... First off, is there a difference between Geo-referencing and rubber sheeting? If so, how ...
-1
votes
0answers
31 views

ArcMap spatial adjustment rubbersheeting

How much minimal count od of links I must add to align some layers ? I know that exist roole to counting minimal links count, something about TIN.
0
votes
0answers
6 views

Error: Cutline feature without a geometry. > Raster Type

I've got an "Error: Cutline feature without a geometry" on QGIS 2.4.0 Chugiak. I have 2 samples (A raster type and a vector type), they have the same coordinates (EPSG:4253 - Luzon 1911) Then I tried ...
0
votes
1answer
105 views

Is it possible to have measurements in centimeter and decimeter in 2D flat (geometry)?

Is it possible to have measurements in centimeter and decimeter in 2D flat (geometry) for ArcGIS?
20
votes
3answers
1k views

What are the differences between spatial databases?

What is the difference between Oracle Spatial, PostGIS, SQLServer2008, SpatiaLite, and MySQL in terms of their spatial support. Are there specific use cases where each shines. What might you want to ...
2
votes
0answers
58 views

Plotting Bare Soil Line on landsat data in RStudio?

I am using RStudio with landsat package for computing and plotting the Bare Soil Line (BSL) on landsat tif image running on my HP Pavilion i7 laptop. The codes for running the BSL() function is as ...
0
votes
3answers
276 views

Show “layer name” as text in arcgis layout view (map)

I am trying to show the layer names of all visible layers in ArcGis 10.1 when creating a map in layout view. First I tried to use "insert legend" and show there only the layername, but I can't ...

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