0
votes
0answers
3 views

Generating routes between every point in a set of points in QGIS

I'm looking for a way in which to generate a set of routes between every point in a layer. To be clear, if I have four points [A,B,C,D] I want to get routes: A - B A - C A - D B - A B ...
0
votes
0answers
2 views

data for radius search in shortest path finding? [on hold]

Is there any way for getting data for radius search ( described here: http://orsnz.org.nz/conf36/papers/Engineer.pdf, page 6, point 9.0 ) ? It's used to boost the heuristic for calculating the ...
0
votes
0answers
4 views

The size of the SRTM raster data cells?

I have been puzzled by one question: The size of each cell of the SRTM 1 arc-second raster data is: 1 x 1 arc-second = 0.00027 x 0.00027 degrees. But of what? 0.00027 degrees of latitude x 0.00027 ...
0
votes
0answers
2 views

EU DEM licensing compared to SRTM and others

Where can I find the actual full license of the EU DEM? That download webpage has a checkbox saying "I am aware that I am downloading non-validated data and I accept to not distribute the information ...
0
votes
1answer
4 views

changing text in an MXD textbox with items from a list in ArcPy

I am trying to create a text label for a series of maps over time. I have a text box with the element name "DateBox" in my mxd. As a filler, it says "Week # here". I want to it say "Week XX", where XX ...
0
votes
0answers
2 views

Identify which map services are locking feature class

I have a feature class in one of my enterprise geodatabases (10.3.1) that I would like to modify but it is locked by a number of ArcGIS Map Services. Is there a way to identify specifically which Map ...
0
votes
0answers
8 views

R Levelplot overlaying two SpatialPolygonsDataFrame on a RasterLayer

I'm having some trouble plotting a RasterLayer and a SpatialPolygonsDataFrame in a level plot in R. Something is wrong with the projection, but I don't manage to understand what. Thanks for your help. ...
0
votes
0answers
6 views

How do you control the width of a column generated by FeatureTable with javascript?

I am generating a table using FeatureTable() and I would like for the columns to be different widths. I can't find anything in the API on how to do it and all of the samples I have seen have all of ...
0
votes
0answers
9 views

Is there an Esri ST_Geometry function to remove m-values?

I'd like to use SQL to select the WKT geometry of an ArcSDE feature class of the type POLYGON M. However, I'd also like to suppress the m-values as I read them. PostGIS has a function Force2D that can ...
0
votes
0answers
14 views

How can I change start and end point of a linestring?

I have a linestring from a pgRouting query. The start point and/or end poit of this line does not connect exactly the points I've clicked on the road and give me all the road segment of that edge ...
0
votes
0answers
11 views

SAGA Gis and QGIS: difficulties in dissolving polygons

I am new in using GIS and I'm having some problems in properly dissolving some polygons. In particular, I have a single layer with about 3,000 polygons (protected areas), some of which overlap (the ...
0
votes
0answers
9 views

How do I assign the result from ST_GeomFromText() to a variable and consume the variable?

This SQL works as is: select field1, field2 from schema1.featureClass1 t1 where sde.st_intersects(t1.shape, sde.ST_GeomFromText('point(99.0 22.0)', 1111)) = 1; Now I need to perform some ...
0
votes
0answers
11 views

Why Does Fiona Crash Python When Creating an Output File?

I've basically followed the Fiona online manual verbatim to write an output file but my code crashes when I call Fiona.open() to create said output file. Traceback reports that the reason for the ...
0
votes
1answer
15 views

ARCGIS 10.4 Interactive bearing measurement?

I have ARCGIS Desktop Advanced 10.4 and I want to use ARC Production Feature Builder to measure the bearing between two points just entered on the map, whilst there is a description of this function ...
0
votes
0answers
5 views

Strip characters in Java/QML in App Studio for Arc GIS

I'm trying to change the display text for attachments in the Arc GIS App Studio. I want to strip a number of characters from the front of the string, and a number of characters from the end and keep ...
3
votes
2answers
23 views

PostGIS treating unique geometries as equal

I have two different geometries (albeit very closeby) that Postgres is treating as equal. db=> select '0101000020E6100000C5BCD8C5FEF45DC0AFE29EF87B584740'::geometry = ...
0
votes
1answer
8 views

Rescale raster in R

What's the best way to rescale a raster with range 0, 200 to range -1 to 1 in R? I'm currently using gdal_translate, but this requires that I write out a new file with the updated range. If possible ...
0
votes
1answer
7 views

ArcGIS Model - Iterate Row Selection - Multipal viewsheds

I've a CSV file with 106 rows with data suitable for a viewshed. What I want to do is run an ArcGIS model where it works through the rows and produces 106 viewsheds for me (ideally the data could ...
0
votes
0answers
6 views

ArcGIS Online : update feature service failing persistently

We use FME to upload data to ArcGIS Online, but ran into an interesting error as returned by ArcGIS Online. Has anyone experienced similar issues when updating large volume of data in ArcGIS Online? ...
0
votes
0answers
9 views

What is the default directory for qml-files in QGIS?

I'm using QGIS 2.14.1 on Windows.
0
votes
0answers
8 views

Assigning only odd or only even address ranges [on hold]

Can one assign only odd or only even address ranges to a road with zeros on the unused side, without issues? For example, I have frontage roads that run adjacent to a freeway and will never have ...
0
votes
0answers
12 views

Cannot get python-docx to work with Custom Tool : DLL load failed: %1 is not a valid Win32 application [on hold]

I am currently using ArcMap 10.2, Python 2.7, and Anaconda aka SPYDER to make my output code populate a Microsoft word report. When I use the custom script tool this is the error message I receive: ...
1
vote
1answer
13 views

enable enterprise geodatabase error

I am trying to enable an enterprise database. I right click > enable and then navigate to our organizations keycode file. I get this error: Attribute Column Not found... (see screenshot) This ...
1
vote
0answers
7 views

Using Calculate Value to Replace UTM83 to NAD83 in file name within Model Builder

I am looking to use the Calculate Value tool to replace the UTM83.sid input aerial file name with an output aerial file name using the new projected coordinate system of NAD83.jp2 What do I use for ...
0
votes
1answer
8 views

Geoserver “Could not find a style for layer” error

I have a bunch of layers stored in Geoserver. However, when I try to preview certain layers, a WMS exception gets thrown. <ServiceExceptionReport version="1.1.1" > <ServiceException ...
0
votes
0answers
22 views

Create Service Area free GIS Tools

Is there a way to to something like ArcGIS provides with the Network Analyst with open source GIS tools? What I am exactly looking for is: I am having a roadnetwork and in this roadnetwork I have ...
0
votes
0answers
6 views

NED (NAVD88) to WGS84 heights

I need to convert the 1/3 arc second DEM files from the NED into WGS84 ellipsoid heights. The documentation says that the NED is referenced to NAVD88. I've tried using gdalwarp as follows: gdalwarp ...
0
votes
0answers
5 views

Eps files from map export are not containing a vector image

I have made a custom map export service which exports my map in a range of formats. However I have noticed that .eps files, exported using the arcPy function: arcpy.mapping.ExportToEPS(mxd, ...
0
votes
0answers
8 views

How can a form designed in Qt designer for a QGIS plugin toolbar, can be opened (.show()) when one toolbar button is pressed?

I want to create a toolbar with 2 buttons, each button opening a different form. The steps I followed are: Created a plugin using Plugin builder Created a toolbar with 2 buttons by doing the ...
1
vote
2answers
17 views

Display extent indicators in the legend?

Can you link the data frame extent indicator box with your legend so that the legend displays a symbol and description representing the box?
0
votes
1answer
21 views

QGIS Autofill Column help?

I'm working on a soil project and I am trying to add a new field that is called Drainage which is correlated to all of the different soil types (which is a different field). Is there an easy way to ...
3
votes
1answer
14 views

Can you use Bing Maps in offline editing in the ArcGIS Collector app?

Is it possible to use Bing Maps in the offline mode in the ArcGIS Collector app? In ArcGIS collector can I download the map, work offline and sync my edits when I'm using Bing aerials as my base map? ...
1
vote
0answers
7 views

How to resolve Projection library error. proj error “Permission denied” in MapServer on IIS

I'm trying to get MapServer up and running under IIS on my Windows 7 x64 machine. I've installed the latest 7.0.1 release msi from GISInternals Added mapserv.exe to the Allowed list in the ISAPI and ...
1
vote
0answers
18 views

ArcObjects Custom Tool for a VB App

We have an old VB6 app that uses the map, toolbar and toc controls. On the toolbar, we've added the custom menu so users can add other built-in tools or tools they've created. One of our customers ...
3
votes
1answer
34 views

Calculate Statistics along a Linear Feature

I have a linear feature class (road network) that is split into segments less than 2 miles in length. Each segment is assigned a value. I want to calculate a distance weighted sum in some manner such ...
1
vote
0answers
22 views

While merging my shape file with DBF file, I have an error about duplicate values

When I try to merge my household data file in a .dbf format with my shape file by using key variable, I've a problem that you can see in the picture. Because, in my dbf file, provinces have several ...
0
votes
1answer
26 views

RasterStats import zonal_stats error

I just installed rasterstats 0.10.3 Python library on my Windows machine and everything went fine with pip installation (had to install fiona, rasterio wheels separately prior to installing ...
0
votes
0answers
10 views

How to add fields to postgis layer loaded in qgis using python

I have loaded a layer from Postgis in qgis and I am adding the fields to the layer using the follo code snippet: canvas = qgis.utils.iface.mapCanvas() aLayer = canvas.currentLayer() field_name = ...
1
vote
1answer
20 views

QGIS automatic fill columns from referenced csv

I have what is probably quite an easy problem, however I'm not able to figure it out by myself. I work as a field researcher doing bird inventory. I collect the data via QGIS on an android-tablet, ...
2
votes
0answers
11 views

3D Visualization in 3D

We have published a geoprocessing tool that gives Raster dataset as output. we are using arcgis javascript api 4.0 version to visualize it on map. But when we use gp.getResultImageLayer , the event ...
1
vote
0answers
17 views

QGIS Python variable not updating after new features are inserted

I have the following script that sets the a feature id automatically after a new feature is digitized. I added the function inside the project's Macro section inside openProject() function: The ...
0
votes
1answer
11 views

How to perform radiometric correction and enhancement processing to get the coastal habitats?

I have a satellite image that is processed to unsupervised classification. I have to get the coastal habitats from this image. The satellite image before classification process need radiometric ...
2
votes
1answer
31 views

ArcObjects 10.0 Add-Ins

I'm using 10.0 because that's what our customer that I'm attempting to build a custom add-in for is using. I am following the "Walkthrough: Building custom UI elements using add-ins" from the ...
4
votes
2answers
27 views

Different values while calculating distance

I'm developing a project using LeafleatJS and PostGIS. Currently I'm getting trouble while calculating distance between two coordinates. For example: Point 1 - lat: -12.99835864475412, lng: ...
2
votes
1answer
16 views

QGIS python getting number of new features to be stored in layers

I mean, how could I get the number of features that have been created in a given layer and that are pending to be saved in the layer when "Toggle editing" or "Saving layer edits"?
0
votes
0answers
21 views

Problem aligning historic map of Poland [on hold]

I have downloaded a historic map of Poland. I am having a problem aligning it to a modern map. I have tried various methods and coordinate system using over 50 points, but nothing works. It gets ...
1
vote
1answer
11 views

Control number of segments in ST_Buffer for geographies?

I've been attempting to construct circles centered around a list of points in PostGIS with good success. I've opted to circumvent having to look up UTM zones and using optimal SRID by simple letting ...
1
vote
0answers
18 views

Create Terrain Ruggedness Index (TRI) in QGIS

I just started to use raster files, and I want to create a Terrain Ruggedness Index (TRI), using QGIS. Which layers must I use? Do I need to create the "Input file (DEM raster)" (in: ...
3
votes
4answers
40 views

How to choose a fixed position to labels in QGIS 2.14.2?

How can I manually position these numbers for a better position in a polygon layer?
0
votes
1answer
15 views

Get value from list class (vector) in R

I have a simple question about corce(?) list class data into vector. I extract a tif file from polygon to achieve a list. Maybe the class of list is leaded by extract function. I check the list length ...

15 30 50 per page