0
votes
0answers
3 views

Viewshed plugin results in memory error in QGIS 2.6

Everytime I use the viewsheds plugin up to this point I get an memory error. I projected my raster files and the point which I added as an observervation point into a metric system (EPSG:3857 - WGS 84 ...
1
vote
0answers
10 views

con statement to change the default value in arcgis

I have obtained a flow accumulation map using Arc Hydro tools and obtained the default value in the range of 0-204567. Now I need to change these value by default so that it gives 1 instead of zero. I ...
1
vote
0answers
8 views

Stripes and Distortion in classification result when performing maximum likelihood classification in ArcMap

I have trouble performing a supervised classification in ArcMap 10.3. I created training areas and executed the "interactive supervised classification"-tool, which works totally fine and gives back ...
-1
votes
0answers
8 views

Is it useful : map with details of road curb ,road markers , intersection, crossing…? [on hold]

and those geospatial information are very accurate.
0
votes
0answers
8 views

Geoserver authentication

I created a user, password and a role, granted access to my Workspace only for that role. Now I want to test whether the access restriction works, but I cannot find any documentation about how the ...
1
vote
1answer
5 views

MapServer square symbol composed of 4 internal squares

I need to create simple square symbol composed of 4 internal squares. SYMBOL NAME 'SQUARE_TL' TYPE vector FILLED true POINTS 0 0 0 0.5 0.5 0.5 0.5 0 ...
0
votes
0answers
15 views

Using python to write on attribute tables of ArcGIS? [on hold]

I had an ArcGIS model (ArcGIS 10.2) and I used Python scripts (Python 2.7) to make calculations with values from attribute tables. Now, I need to put results of python on new attribute tables of the ...
0
votes
2answers
11 views

How to export vector file in GrassGIS to QGIS

I am using GrassGIS to analyze watershed. I created a stream vector extracted from raster elevation data, how to extract the stream vector file so I can open it using QGIS? Thanks
-1
votes
0answers
5 views

how to display a form with input fields when event was occurred in arcgis JavaScript? [on hold]

I have been doing some task,in which user draws a polygon on base map by using drawing tools, the form has to be generated after the polygon was drawn or form has to be generated in double click ...
0
votes
1answer
10 views

Getting Generate Near Table to use North Azimuth System when calculating angle?

How can I to get "generate near table" to use "north azimuth system" when calculating the "angle" instead of Polar angles? I tried to change it in editor by; On the Editor toolbar, click the ...
0
votes
0answers
12 views

Suitable font size for road network for A0 -A1 print size QGIS

I need to print big paper maps, Im using QGIS to design my maps. But I would like to get advice on suitable front size for road names. With the map as big as A0 I can basically fit all text labels for ...
0
votes
0answers
10 views

Shape File CRS Conundrum

In QGIS I have 2 Shape vector layer files which should overlay approximately one on the other. They have both been downloaded from the same government website (data.vic.gov.au) with the same ...
2
votes
1answer
15 views

How to change color ramp interval size in QGIS 2.12?

I'm working on elevation data and I'm trying to change the interval size to 50 meters in the layer's style. I created a color ramp color interpolation on the elevation layer. The values are between ...
0
votes
0answers
10 views

Animate panning map in QGIS

I want to create a short video illustrating the route of a proposed road by starting the map in one position, then panning to a number of other points. Is this possible in QGIS using the time manager ...
1
vote
0answers
13 views

QGIS freezes /crashes and Minidump-Analysis

I am using a QGIS-project with several WMS-Layers(up to 20) and Shapefiles for digitizing. There are random freezes of QGIS(2.14.1) which end up in a crash of the program. Minidumps are not always ...
0
votes
0answers
9 views

How to add dynamic text in standalone PyQGIS to reflect iteration of layer names

I am working with a standalone PyQGIS script below with the help of @gcarrillo. The script exports the "boundary, climits, and Div1_Irrig_1956_0" layers as one png. The script then exports the ...
0
votes
0answers
10 views

How to get QGIS to use dedicated graphics card over integrated

does anyone know how i'd be able to get QGIS in either windows or Ubuntu to use the dedicated graphics card over the integrated graphics? I am attempting to speed up the processing of a supervised ...
0
votes
0answers
9 views

Geoserver 401 error [on hold]

I'm using PHP to create workspace and datastore in Geoserver 2.8. But it keeps saying following error: HTTP Status 401 - Full authentication is required to access this resource type Status report ...
1
vote
0answers
42 views

Delete table rows in non-spatial database using arcpy

Working on a python script that does a bit of spatial analysis on a few layers, a spatial join of those layers, and then pulls data from a couple of other tables and holds them all in an in_memory ...
1
vote
1answer
19 views

Fiona error adding property to shapefile

I'm getting the following error when trying to add a property to a .shp file using fiona in python: Traceback (most recent call last): File "<ipython-input-38-5f04c3b56601>", line 17, in ...
1
vote
0answers
16 views

Create points along line using CCTV data (irregular interval!)

I am trying to create points along a line using CCTV data for our wastewater network using ArcMap 10.3. There is no field within our pipe to specify upstream/downstream so I have determined the flow ...
1
vote
0answers
7 views

MapServer runtime execution: Cannot evaluate expression, no item index defined error

I'm trying MapServer's run-time substitution to dynamically set my Mapfile's CLASS EXPRESSION values. The expressions take the form of: CLASS EXPRESSION (([my_attr_col] >= 0) && ...
0
votes
2answers
20 views

Unable to connect PostgreSQL 9.5 from QGIS 2.14.1

I created new database called "shashi" in PgAdmin III. In QGIS to create new connection I entered following details. In PostgreSQL 9.5 pgAdmin lll Please enter password for user postgres on server ...
1
vote
1answer
36 views

Splitting polygon into two equal parts from specific point to polygon dividing line?

I want to split a polygon into two equal parts but I want from a specific point to the polygon dividing line. How to do this using ArcGIS Desktop 10?
-4
votes
0answers
10 views

how update data WFS in geoserver by leaflet [on hold]

I would like to modify the data that is in a database postgis that is shared in geoserver i work with WFS and geojson and leaflet .
-1
votes
0answers
24 views

Using ArcGIS Spatial Analyst for elevation?

I have many csv files of ~1000 points with elevation and x,y data. These points were manually recorded off of scanned images of the surveyor's drawings at an archaeological site. I have made each of ...
1
vote
0answers
20 views

QGIS clipper taking forever

As the project requires, I built virtual raster catalog merging two raster DEM files. Because I don't want to use the whole surface of the new Virtual Raster, I went on to clip a desired rectangle. ...
2
votes
0answers
32 views

Calculate Geometry function returns underestimated distances

I'm making a map of the Colorado Trail and obtained a set of waypoints taken down the entire trail. I projected the set of waypoints from WGS84 (unprojected) to NAD 83 UTM13N after adding to the data ...
0
votes
1answer
15 views

How to calculate distance from point to nearest polygoin via road network (polyline) ARCMap 10.3.1

Using ArcMap, is it possible calculate distance from a postcode (point) to nearest polygon using a road network layer (polyline)? As opposed to just calculating Euclidean distance?
0
votes
0answers
25 views

Pulling data from a published Google Map

I've been looking at www.powerplantmaps.com and it is a great site that lists all kinds of power plants around the world. The site is very good because it provides a map-based view of the world and ...
2
votes
1answer
41 views

Sum line lengths for each grid cell in QGIS

I'm trying to get data from a polyline layer into a grid (I've created this with regular points, points to polylines). I guess at first I have to cut all polyline segments at the grid lines and then I ...
2
votes
1answer
21 views

Switch to another grapic card on my Laptop for ArcGIS

I use ArcMap on a laptop, a Lenovo Yoga P40. This laptop has two graphic cards: the standard Intel graphic card and a NVidia graphic card designed to be used on graphic softwares (e.g. AutoCAD ...
0
votes
1answer
20 views

API provider for getting coordinates automatically?

I need to get the coordinates of some accommodations automatically (and not by extracting them manually from, e.g., Google Maps) and then import them in QGIS. I've already seen that TripAdvisor has an ...
0
votes
0answers
44 views

Can I use those values to for 'cursor.next()' instead of returning the next value based on FID? [on hold]

This is a line feature. when I excute the script below cursor = arcpy.da.SearchCursor("contour_lines_SmoothLine1", "*") for row in cursor: print row I got somthing like that (0, ...
1
vote
1answer
19 views

Error in <module> arcpy.SelectLayerByLocation_management [duplicate]

I am writing a Python code and have trouble adding a layer to the program. I face this problem below: Traceback (most recent call last): File "G:\arcpy workspace\python learning codes\loc.py", line ...
3
votes
3answers
62 views

In transferring a family cemetery layout to a digital format, I need a software program [on hold]

We have a large historic family cemetery. I've had surveying experience, drafting in the days when it was done by hand, and a lot of real estate experience with deed descriptions and layouts on maps. ...
-1
votes
0answers
10 views

Consume ArcGIS Server services in Android Mobile App [duplicate]

My organization is using ArcGIS Desktop 10.2 & ArcGIS Server 10.2. At present we wish to have mobile GIS application from Android and iOS Playstore. ESRI Arcgis app is available free of cost on ...
1
vote
1answer
15 views

Getting data from postgis with hibernate is returning an hash instead of the rows

Is the first time that i use spring and hibernate starting from the basics, i need to get geometries from a postgis table populated with Qgis. I generate a persistence mapping of the table with ...
2
votes
0answers
23 views

ArcGIS 10.3.1 cannot display TIFF image manipulated with GIMP (graphic software)

I used the graphic software program GIMP to manipulate a geoTIFF image (GIMP cannot handle geoTIFFs, so after manipulating the image in GIMP the geospatial information is lost). When I now try to ...
0
votes
0answers
5 views

Qgis2web .tif raster has black line how do i fix this

Im using latest Qgis Essen with latest Qgis2web plugin. I import my .tif raster of filtered and visualized LiDAR data i get at top and bottom of raster a black band. MY raster and project CRS is ...
0
votes
0answers
19 views

ArcGIS app for Android connectivity with ArcGIS Server [on hold]

My organization is using ArcGIS Desktop 10.2 & ArcGIS Server 10.2. At present we wish to have mobile GIS application from Android and iOS Playstore. ESRI Arcgis app is available free of cost on ...
1
vote
0answers
22 views

Why reprojection GeoJSON with new.ol.View - not working?

I try to reproject GeoJSon file in OpenLayers 3 from : Geojson link With these JS in head : <script src="js/jquery-2.2.3.min.js" type="text/javascript"></script> <link ...
-1
votes
0answers
8 views

Conversion of Land classification tif format to Northwood Claasified Grid Format *.grc

How to convert or save the classified land cover in *.tif to *.grc. using qgis, see error attach picture.
0
votes
0answers
11 views

Krovak projection EPSG 5514: Correct data transfer between R and ArcGIS?

I have a problem which many ArcGIS, QGIS and R users from Czech Republic and Slovakia may encounter. In ArcGIS, I am working EPSG: 5514, Projected Coordinate System, defined as: ...
2
votes
1answer
30 views

Can I set up a PostGIS store/connection in GeoServer without user password for database?

When creating a PostGIS store in GeoServer, the guidelines I saw ask us to fill in database connection parameters including: host, port, database, schema, username, and password. This is a bit ...
0
votes
0answers
13 views

How to mosaic two ladsat images when they have different reflectance distribution value

I have two adjacent landsat-8 images from two different time, April and October. They have different reflectance value. While mosaicing these two does not seem to have matching histogram. I tried by ...
-4
votes
0answers
49 views

can't get tuple to run [duplicate]

I am having some trouble getting my code to run particularly for my tuple. I am trying to get the distance from any city to a lake by calculating the minimal Euclidean distance from the city ...
0
votes
0answers
8 views

Invalid Pointer…Script Error [duplicate]

After working with Spatial Analyst (using multiple tools several times each) for a certain (unclear) amount of time, any tool I open provides the same warning... A script Error has occurred on the ...
1
vote
0answers
15 views

Understanding semivariogram model in ArcGIS; difference between Binned points and Average points?

I am sorry if I am unaware of some very basic ideas of semivariogram. I am trying to understand the difference between binned points and averaged points. In this [document] ...
2
votes
1answer
39 views

Calculating total area overlapping specific raster DEM color interval whose boundaries are confined by another vector?

I know this sounds quite difficult, but maybe it isn't for you or at least it shouldn't if I explain it correctly. (I'm using QGIS 2.14) I'd like to know to calculate total area overlapping a ...

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