1
vote
1answer
10 views

Building error on changegeometryvalues

I am working with c++/QT and c++api gqis 2.8.2 I want to change the geometry of a feature, I have this code : QgsVectorLayer * lLayer = mMapLayer.value(TRACKS); QgsVectorDataProvider * ...
0
votes
1answer
13 views

Leaflet map altering page scroll behavior

When scrolling down a page and past a leaflet map, if the user's mouse cursor is inside of the map, then the scroll bar stops and the browser window becomes stuck on the map. Is there a way to ...
0
votes
1answer
21 views

ArcGIS JavaScript setRequestPreCallback is partially working?

I have an api sitting in front of AGS that requires it's own authentication. I am using setRequestPreCallback as stated by the ESRI docs. In the image below, you can see that the first 2 requests are ...
1
vote
1answer
59 views

Check fields data type before insertion to table

I am trying to insert a python list of tuples to arcgis table. there is type mismatch which is obvious. Each Value in tuples have different type and fields in table have different data types. So, ...
1
vote
0answers
21 views

Is QGIS aspect analysis description mistaken?

I've been checking the Aspect analysis tool and several sources indicate that aspect is measured from 0 to 360, starting North and going counter-clockwise. Nevertheless, I've been testing it on ...
1
vote
1answer
15 views

Trying to create colour co-ordinated values on a map from data from a csv. file

I have a list of values for some data recorded via Magnetic susceptibility, I have these in a shapefile and want to try creating a colour map out of the values. The values that I'm using relate to, ...
0
votes
1answer
22 views

Why doesn't fTools Line to Polygon work?

I am working new with QGIS (Version 2.8.2 / Window 8.2) and try to make Polygon from Line (see example picture 1) with the fTool LineToPolygon, but it doesn't work (see picture 2). I work with ...
2
votes
1answer
25 views

Iterate through domain names and delete domains using ModelBuilder?

I have a list of unused/unassigned domains in table format. It's actually a table inside a GDB. I want to build a model that iterates through this table and deletes the domain. Is this possible with ...
0
votes
0answers
20 views

Style symbolization: compute Label change?

Situation: I have a Style File to symbolize data of a FeatureClass (FC) in a GDB. The definition of Layer properties is set to "Categories" > "match to symbols in a style". Label is linked to a value ...
1
vote
1answer
12 views

Geoserver automatic histogram manipulation for WMS requests?

I'm having this weird thing when making two different WMs requests. The requests differ by the requested BBOX, meaning two different image-regions, yet the requested regions do overlap. And now for ...
1
vote
0answers
12 views

Custom data source for GeoServer raster image

I'm working on a project where a custom binary data file contains latitude, longitude, and temperature data. I'm interested in creating a DataStoreFactory plugin to enable GeoServer to load this ...
0
votes
0answers
21 views

How to make a polygon and point shape file line up to do a spatial join?

I have a polygon with a North_America_Lambert_Conformal_Conic coordinate system and a point shape file which had a WGS 1984(DD) coordinate system. I defined projection and projected both of them to ...
2
votes
1answer
35 views

How to define a projection for a file with geo points?

I have a HDF file that I want to convert to tif or ENVI file. I know that the +Proj of the original file is: "+proj=cea +lon_0=0 +lat_ts=30 +ellps=WGS84 +units=m" so: gdal_translate -of "ENVI" ...
1
vote
0answers
25 views

ArcPad 10 - VBScript Error 800A0046 [on hold]

A colleague asked me to install ArcPad 10 on his Trimble JUNO 3B. He runs an application with scripts that produce messages when the GPS is turned off. The script works fine on his Trimble Nomad - ...
1
vote
0answers
16 views

How do you enable HTTP GET for submitJob for a GPService?

I published a GPService to ArcGIS Server 10.2--the service is a copy of an existing service with a different name. I receive no errors during publishing, however I get 404 errors when attempting to ...
1
vote
0answers
18 views

DLLs or examples to support writing a shp, shx, dbf file as memory stream for uses on Azure website?

I'm trying to read/write shapefiles for a web service for an azure website and I do not have the luxury of accessing the local file storage (which means that reading/writing from/to disk is out of the ...
2
votes
1answer
43 views

Map Package or Relative Paths for ArcMap MXD export

Is there a way to use Map Packaging so that multiple mxds draw data from the same geodatabase when unpacked? We've broken our project area into 14 divisions. Each division has it's own geodatabase ...
0
votes
0answers
15 views

show polygon from database in browser in geodjango

I tried to retrieve the polygon which I saved into postgis database. (all polygons) Here is my code: models.py from django.contrib.gis.db import models class MyMap(models.Model): name = ...
0
votes
0answers
13 views

how to rotate a symbol

I am working in c++/python/QT 4.5 with the api qgis 2.8.2 My application receive data from a communication port that indicate the change of position of an object diplayed on the map and represented ...
1
vote
0answers
16 views

Shared edge between two geojson polygons

I am interested in getting the coordinates of a shared edge (if exists) between two geojson polygons. I am (currently) using turfjs and geojson-equality libraries I tried this but I consider it quite ...
-2
votes
0answers
33 views

A reliable source of shapefiles for boundary data?

Does anybody know of somewhere that I can reliably get shapefiles or kml files for municipal / neighbourhood boundaries for cities across the world? I know that ArcGIS online has some but certainly ...
1
vote
0answers
26 views

Remove inner rings from QgsGeometry polygon in QGIS Python

I am a QGIS python user. I want to iterate over the rings of a polygon to remove holes in the polygon, so: I need to iterate over the rings in a QgsGeometry polygon I need to detect the main ring ...
0
votes
1answer
14 views

Installed ArcFM Desktop from Network Drive, cannot uninstall it

I have installed ArcFM Desktop 10.1 from a network drive i.e I ran the installation from a mapped network drive. Now when I try to uninstall it from Control Panel, it doesn't do so and gives me the ...
0
votes
0answers
10 views

JSON loop - get field values not field names

I'm running a for loop to extract certain values from a JSON string. I get the related values back for a map service that is initiated by the user clicking on a table of contents - e.g. a url, layer ...
0
votes
1answer
20 views

Open layer 3 (3.8.2) How to set a blank Basemap?

I want to add a blank (empty) base map option to the set of radio button . here is how a part of my code looks. // MapQuest streets new ol.layer.Tile({ title: 'Street Map', group: ...
0
votes
0answers
14 views

How to create points on for Stations?

I have a set of coordinates for 6 stations. I will need to place a image on the specific coordinate and change the image based on my own data in real time. How can I create a layer to geoexplorer ...
0
votes
1answer
18 views

Debugging ERROR 000732 Cannot create table from feature class in file geodatabase?

I am unable to create table from feature class in file geodatabase. below is the screen of shot of the tool with error message ERROR 000732
0
votes
0answers
6 views

What ArcGIS server settings could affect an ArcGIS Portal homepage? [duplicate]

ArcGIS Portal homepage has lost formatting and im keen to know if ArcGIS server has settings that can influence how portal hosts its pages
0
votes
0answers
11 views

How to Point Cluster With Dynamic Data In ArcGIS API

ArcGIS API is using this Demo to illustrate how Point clustering works with JSON data. In my case I am generating some point graphics from MySQL Database by a jQuery AJAX request like following code: ...
2
votes
0answers
31 views

“Identity” equivalent in Grass GIS

In ArcGIS and SAGA GIS there is the "identity" tool, which creates a vector overlay and shows area contributions of polygons in shapefile B to the polygons in shapefile A (in the attribute table). ...
0
votes
0answers
7 views

How to find one polyline of google map overlaps other polyline in map?

I have two routes let's say route 1(Location A to F) and route 2(Location B to E) in Google map. How could i determine route 1 includes route 2? Here route 2 is shorter than route 1 so, coordinates ...
0
votes
0answers
24 views

Incomplete data - lines missing from osm2pgrouting

I am importing OSM data into PostGIS using osm2pgrouting but some data is missing/did not import. I am using the default mapconfig.xml and this appears to work for most roads. For example in below ...
0
votes
0answers
13 views

ArcGIS Portal homepage altered without html change

After changing the region in rest services the carousel of images has stopped rotating, the white banner at the top has disappeared and icons at the bottom have shifted. Seems like a page size setting ...
1
vote
0answers
13 views

How to change the value tof the use tag in a svg file

I am working in C++/QT4.5 with the qgis c++ api 2.8.2 I have a svg file that contains different form tag by Id When i want the first form i place the id name in the use xlink:href="#formname" .... ...
0
votes
0answers
25 views

Snapping points to nearest road - query is extremely slow

I have a two tables containing (1) all parishes in Denmark (centroids) and (2) a road network of Denmark (OSM data). I am trying to find the nearest road for each parish centroid. To do this I'm ...
2
votes
2answers
83 views

How can I correct/alter/change the workspace path in my environment settings?

This has been bothering me for a very long time. No matter what I do, whenever I open ArcGIS Desktop, the environment settings for current and scratch workspaces revert to a path that is non-existent ...
2
votes
0answers
34 views

ITopologicalOperator2 operation Simplify taking very long in ArcGIS 10.3.1

I have a method that does a simplification of geometries. I have used this common code since ArGIS 9.2 without issues and it still works fine in ArGIS 10.2.2. Recently I upgraded a project to 10.3.1 ...
0
votes
0answers
18 views

Postgis reverse geocoding for other countries

I have tried using postgis_tiger_geocoder extension for reverse geocoding and it just has the U.S related data(56 states or so) but I need to have few more countries like canada and few more. Is there ...
1
vote
1answer
30 views

How to view/display fields with high character lengths in ArcMap?

I am trying to import an Excel spreadsheet with a field that has more than 255 characters. Do I have to convert the Excel table to a file geodatabase table first in order to view this field in ...
0
votes
0answers
27 views

Computing areas from data in a lat/long coordinates

I am developing an exercise on computing areas of polygons for a course in scientific computing that I teach. I'd like to have the students estimate the acreage burned in one of the fires in ...
0
votes
2answers
56 views

PostGIS polygon clip inaccurate using ST_Clip and ST_Union from tiled raster

I have a RGB raster tiled at 128x128 in PostGIS enabled database. I am trying to clip from the raster using a polygon as follows: SELECT ST_AsGDALRaster(rast,'GTiff') FROM ( ...
4
votes
1answer
47 views

How to center a user-defined CRS on an area of interest?

My study extent in central Iran straddles two UTM zones (39 and 40): I would like to create a user-defined CRS in Transverse Mercator projection with central meridian inside this area. Through ...
1
vote
2answers
46 views

Removing nodata value from raster images?

I'm doing urban change prediction in Land Change Modeler (TerrSet software), and i can't run Transition Sub-Model. I don't know why, but I think it is because I have nodata value in Variable (slope ...
0
votes
0answers
9 views

Getting netCDF data into PostGIS database using Python?

I can read the netCDF file data with netCDF-python or with gdalinfo, but I am unsure of the easiest way to get it into a PostGIS database. It would be really easy if I could convert the netCDF file ...
1
vote
0answers
15 views

Toggling selected feature when using Node Tool of QGIS?

Does anyone know of a way, when using the Node tool in QGIS to edit a polygon, to choose or toggle which feature (within the same layer) is being selected if they share a boundary? It seems to just ...
1
vote
1answer
28 views

Selecting features within bounding box using QGIS?

What is the best way within QGIS to select all of the features within a rectangular bounding box? Is it necessary to create a separate layer with the box, then to use the intersection tool within ...
2
votes
1answer
35 views

Calculate Row if Row Value Equals Value in List

I have a folder of photos named with a building ID that corresponds to a building ID in a building footprints feature class. Not all rows in the footprints feature class have a corresponding photo. ...
1
vote
1answer
22 views

How do I batch input alias names from a table for a large dataset in ArcMap or ArcCatalog?

I would like to populate the alias names for the fields in the ACS 2014 5 year estimates file geodatabase (all 11439 of them). The ACS fgdb comes with the short_name and long_name in the metadata ...
0
votes
2answers
37 views

How do I go from the results of Calculate UTM Zone (Cartography) to a spatial reference object?

Calculate UTM Zone (Cartography) assigns a UTM zone to each feature within a feature class as a field value. The value returned is a 'UTM spatial reference string', which is a long string that looks ...
1
vote
1answer
33 views

Projected raster data has inconsistent extent but not shapefile

I want to calculate the average value of a raster file within each polygon boundary of my shapefile. Because I want to preserve area I wish to use the Goode Homolosine (Land) projection. The original ...

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