1
vote
0answers
17 views

Linestring segment completition?

I just extracted some river paths from some old maps I acquired a few weeks ago, they seem accurate enough and will be very interesting to put against my theoretical mapping calculated by using the ...
1
vote
1answer
13 views

Checking if ModelBuilder model is in use by testing for Schema locks?

Is it possible to get ArcGIS to check if someone else is using a model by checking schema lock and potentially display an error saying that it is already in use and maybe provide information on who it ...
1
vote
0answers
22 views

ArcMap Layout Templates

I am designing a number of maps for a report and I was wondering is there a location where I can download different layout templates as the default ones in arcmap don't suit what I'm looking for?
0
votes
0answers
6 views

Converting classified raster *.tif file to Northwood Classified Grid Format *.grc

What is the reason why I'm getting the error message when converting classified raster *.tif file to Northwood Classified Grid Format *.grc. ****"ERROR 6: GDALDriver::Create() ... no create method ...
0
votes
0answers
10 views

Memory Leak when deleting a layer

I am working on a project based on qgis api c++ 2.8.2 and qt4.8 I have two methods in a class, the first create a layer and add a point Here is the code for the creating : LibCartoError ...
1
vote
0answers
18 views

Selecting cells with values from DEM those are above specific value corresponding to each polygon?

i have a shapefile with 2000 polygons and a DEM. i want to calculate zonal mean for each polygon considering values from DEM which are above a particular value for each polygon. i want to it with ...
1
vote
0answers
13 views

After Feature Layer reference is added all dojo references are not recognized

I'm creating a simple javascript management system in which I have to query 6 feature layer services, edit, add or delete data from the services. Every time I want to add the Feature Layer reference ...
-2
votes
1answer
22 views

“First” and “Last” from Global Forest Change [on hold]

What are the "first" and "last" rasters provided by the Global Forest Change data set?
1
vote
1answer
27 views

count if a row value is within a dynamic range?

I am after doing a COUNTIFS in python. I need to check each row ± 250 with other rows and if this row is between that range then count 1, then next row, .. and do the same thing. and if there are any, ...
1
vote
1answer
26 views

Changing colors of polygon based on numbers in separate Excel sheet using ArcGIS Desktop?

I have a shapefile and a separate excel Sheet. I want this shapefile to interact with the excel sheet. I have assigned numbers associated with colors on this sheet, what I would like to do is have ...
0
votes
0answers
24 views

Send Feature Attributes Along with Geometries to Difference Operation of Geometry Service

I've large number of data(geometries and attributes). I've to find their difference with other geometry, and after difference is calculated I've to assign attributes to those geometries. Example ...
-1
votes
0answers
15 views

US Census Population Data Availibility

which is granular level of data zipcode data or block level data ? And is there any possibility to get house hold data for more granularity?
0
votes
0answers
3 views

How to use ASTER data to calculate NPP, NDVI, and VI in IDL?

I have never used ASTER data before, and I am having troubles writing a program to calculate NPP, and NDVI using ASTER images. I usually use MODIS Aqua and Terra. However, this time, I need high ...
6
votes
2answers
81 views

Is there a way to assign row number for sorted table by column in QGIS?

Field calculator has a great function under "Records" called "$rownum" which returns (assigns) the number of the current row. Is there a way to make it work together with sorting? Lets say I want to ...
1
vote
1answer
37 views

Seeking C++ api to read/write PostGIS?

I need read/write geometry object from PostGIS. Is there C++ library to do this?
0
votes
0answers
6 views

How to clip canvas rendering to a geojson in openlayers

Something I was interested in is clipping a geojson shape to a map. In the following example they are able to clip to a heart shape. ...
1
vote
0answers
19 views

Identifying suitable head (H) for hydro power estimation from 30m SRTM DEM data using focal statistic analysis

I am doing my project on identifying suitable sites for locating small-scale hydro power. I have all other necessary variables but I am confused about extracting Head (H) values in meters from SRTM ...
0
votes
0answers
3 views

How to open .jp2 with GRASS 7.0.3

Does anyone know if I can use Grass to open a .jp2 image file? I am aiming to do some image classification on the image and when I try to import the image into the program a stream of errors comes up ...
2
votes
1answer
33 views

Installing third party python libraries in ArcGIS location

I'm running ArcMap 10.2.2 for desktop and have Python 2.7 installed as part of the software package. I'm trying to get the pyexcel and xlutils libraries installed. I ran a script to find the path of ...
1
vote
1answer
40 views

Complex QGIS Relations

I need QGIS to display combo boxes when editing for certain fields in a table, very similar to the functionality provided by the Relations properties in the project settings. It seems this is ...
0
votes
1answer
8 views

OL3 check constrain point drag to lineString?

I am wanting to allow the user to be able to drag a map marker, in Open Layers 3, but constrain the dragging to the lineString that represents the route. Based on the code example on Stack Exchange I ...
1
vote
0answers
19 views

Network Analyst Vehicle Routing - Point Barriers not diverting route [on hold]

I'm using network analyst in ArcMap 10.3 to do a vehicle routing problem (I have all the extensions). I have a depot location and an order point. I can run the tool and it will run the route along the ...
1
vote
0answers
20 views

ArcGIS Resample Tool Crashes with “Not implemented”

I'm trying to run the Resample GP tool with a mosaic dataset as an input. The mosaic dataset contains a raster for Peru, the Democratic Republic of Congo, and Indonesia. Each raster is in WGS84, which ...
1
vote
2answers
29 views

Saving array of objects in PostGIS field?

It is possible in PostGIS to save an array of objects in a field, and GeoServer able to read it? (timestamps) For example, a spatial table with the fields: "name", "timestamps" and "the_geom" would ...
0
votes
1answer
37 views

Selecting multiple rows in attribute table. Help formulating equation?

I have some GPS data that I'm working with. I would like to highlight multiple points within the track over a specific time period. For example, the track started at 10:32:03 AM and ended at 11:28:02 ...
0
votes
0answers
10 views

Can GlobalMapper open Personal Grodatabase (MDB( without ArcGID license?

I am wondering if GlobalMapper can read an .mdb geodatabase without an ESRI license? I have encountered some apps that can not read a .gdb without the license but can read an .mdb, so wondering if ...
2
votes
2answers
62 views

Update Cursor: Unable to populate specific field

I am attempting to create a loop to recognize the entry/exit point of a pipe to/from a structure by associating it with a North, South, East, or West direction and then populate the corresponding ...
6
votes
1answer
169 views

In hydrologic terrain analysis is there a difference between “pits”, “depressions”, and “sinks”?

In hydrologic terrain analysis is there a difference between "pits" and "depressions"? For instance, Planchon and Darboux (2002) state The usual numerical methods for removing the depressions of ...
1
vote
0answers
15 views

Creating an Esri multipatch object in ArcScene [on hold]

Can you give me more detailed information about creating a multipatch object? When we import a 3D data format to ArcScene how does it convert it to multipatch? How does it triangulate a polygon ...
2
votes
0answers
28 views

QGIS, connect to postgresql using windows login credentials

How to connect QGIS to PostgreSQL/PostGIS using the Windows user login credentials (Windows / Active Directory / LDAP). Is it possible? Can anyone tell me how?
1
vote
0answers
15 views

Building Custom Mosaic Dataset Overviews in ArcGIS

We'd like to resample our mosaic dataset using the MAJORITY option, but it it isn't given in the Build Overviews tool. Our plan is to generate the rasters manually using Resample and Split GP tools, ...
2
votes
1answer
21 views

Trouble Completing City Selecting tool

I am working on trying to create a tool which would allow me to type in any city name (in this cause European cities), and zoom into that city. My script will run but nothing is selected. I don't know ...
1
vote
2answers
35 views

XY Coordinates result in weird scale

Currently trying to display XY data with what I consider unusual coordinates. These coordinates come from a transit scheduling software called HASTUS. Though I'm able to plot the points in relation to ...
1
vote
0answers
20 views

OS X Yosemite: copy / paste into shell GRASS 6.4.4. within QGIS 2.14.0

I want to know How to copy/paste into GRASS 6.4.4. shell within QGIS 2.14.0. I'm working with OS X Yosemite and the right mouse button doesn't work neither shortcut (cmd+c/cmd+v)
2
votes
1answer
18 views

ArcGIS Flex application - toggling service layers with AS3?

I'm working on an application that has to access data from a server. The flex application uses Esri's World_Imagery basemap and is able to access my data from the ArcGIS for Server, running locally on ...
2
votes
0answers
48 views

Inset map in print composer shifts when saved as pdf

I'm working on a map in the print composer window of QGIS, with an inset map showing a larger extent and highlighting the area of my main map as an overview. Everything looks good in the print ...
2
votes
2answers
43 views

Copy DEM attributes to a vector point?

I have a point that I drew on a tiff DEM file in QGIS. The point doesn't have any information in the attribute table except an ID of 1. How can I make it copy the raster information based on the ...
0
votes
0answers
20 views

Converting polylines coordinates stored in PostGIS in column type text, in another column type geometry(MultiLineString,2154)?

I want to draw a polyline on a leaflet map and then send it to PostGis with php. I’m drawing my polylines using the Leaflet draw plugin and send the coordinates in a column “coords” in PostGIS with ...
2
votes
1answer
22 views

OpenLayers 3 / Cesium polygon projection issue

I am using OpenLayers 3 and Cesium (via ol3-cesium). I have created a few rectangles (using a MultiPolygon) stacked on top of each other. Whereas in OpenLayers the rendering (left) is as expected, ...
-3
votes
0answers
17 views

not matching shapefiles [on hold]

I have two shapefiles (s. below) and they are not matching, I know that there is a problem with coordinate systems, but I tried so many things. 1. coordinates from google maps Geographic Coordinate ...
0
votes
1answer
22 views

Assign similar ID to points inside a polygon

I have 3 input datasets of points. What I'm trying to do is to assign a common ID code to the points that are close to each other (no specific distance). I'm using a ModelBuilder to achieve this : ...
3
votes
1answer
28 views

Encryption of spatial data, GIS access and cloud synchronization

I'd like to encrypt a folder of many spatial datasets (rasters and shapes) because my office computer is shared with others. I've never used this kind of security but I think I should preserve my data ...
2
votes
4answers
62 views

merge overlapping polygons with spatialite

The green points, buffered by one of the point attributes, should result in the three areas outlined in red (a table with three rows): I'd like to do it in spatialite. How can I do that? If it's ...
2
votes
2answers
35 views

Is it Possible to Resize the Pixels

I classified this image in ArcGIS 10.3, but my Professor said the pixels are big and I should make it smaller. This is my problem: is there any tool that can use to make the picture grains finer. Or ...
1
vote
1answer
22 views

Is there a way to get one World File from QGIS Atlas?

I used Atlas in QGIS 2.14 to generate an image (map) and an associate world file for each lakes (> 5000) in my database. I want to be able to see all the data in MS Excel as following: 1st column : ...
1
vote
1answer
18 views

Match Button Greyed Out in Interactive Rematch Window

I used ArcGIS 10.3.1 and built a composite address locator from 5 address locators. All locators are in the same file gdb. I geocoded addresses in a table within the same file gdb and tried to rematch ...
0
votes
1answer
44 views

How to configure Geoserver to use a proxy when accessing external services?

I don't want to access my geoserver behind a proxy. I can access it directly. It is in same network as I with no proxy between us. I have a Geoserver and created some layers consuming WMS services ...
1
vote
0answers
10 views

Why does QSpatialite show the same table twice?

I have created a point table in QSpatialite, by creating a new table first and then adding a geometry column, as described here. The table shows up twice in QSpatialite, which surprised me a bit: ...
3
votes
1answer
25 views

QGIS 2.14 Couldn't load plugin 'processing' due to an error when calling its classFactory() method

I understand that my problem originates from the letters in my username which apparently are non-ascii and very Nordic. I just have absolutely no clue how to get around this. I'm on Windows 10 64bit ...
7
votes
1answer
112 views

How to create an animated route map (à la Indiana Jones) in QGIS?

Using QGIS and other free tools, how can I use a Google Maps route to create a route animation in the style of the Indiana Jones movies (https://www.youtube.com/watch?v=5TY5Fp6O5iM)? I have found two ...

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