0
votes
0answers
2 views

How to hide overlays in Leaflet layerControl if geojson var not found?

i would like to perform a specific task: i have a set of geojson layers, loading features from local files. i have the layercontrol on the map showing available layers to show/hide now, regarding ...
1
vote
0answers
1 views

Display large number of polygons on web map

I've started working on a project with a huge number of polygons, and I'm unsure of how to display/host it. The map I'd like to end up with will have three layers: 1) Shaded polygons representing ...
0
votes
0answers
5 views

How to Add Polyline ID when it is created from points pair coordinates with arcpy?

The following link provide me the solution except i need to add Line ID from "Line_ID" field in same Excel. I could not make comment directly on that link to "Chad Cooper" as I am a new user here: How ...
0
votes
0answers
3 views

Can FileGDB SDK be made to support custom coordinate systems?

In May 2012, a question asked about File Geodatabase (*.gdb) support in QGIS? In the comments there it was pointed out by @MattWilkie that the FileGDB SDK does not support custom coordinate systems. ...
2
votes
0answers
15 views

Mask Bridge with Road

Is there a tool to create mask between bridge line/point on road? The requirement to have gaps 0.2mm between road and bridge and the offset fill with white color. For now, I add a white line attach to ...
0
votes
0answers
5 views

QGIS: Need to remove unwanted white bands when raster layer are overlapping

In my project when raster layers are overlapping a white band appears the edge of the top layer. How can I remove it and obtain a seamless overlapping of the raster ? (I have try to built a vrt with ...
0
votes
0answers
10 views

PyQGIS: Editable Combobox for Value Map widget isses

I am having issues with an editable combo box in QGIS 2.4. The edit widget is set to Value Map with an uploaded CSV. However, if a new values (not included in the key value pair list) is added, the ...
0
votes
0answers
10 views

Creating New Layer After Sorting Attribute Table using QGIS?

I have been self-teaching myself some open source GIS. I downloaded QGIS and have been following this four part tutorial - ...
1
vote
0answers
16 views

What are the steps required to extract building information from Lidar?

We are currently purchasing 2D building footprints and building heights, which have been derived from airborne Lidar by 3rd party companies. We are evaluating whether it makes sense to do this ...
0
votes
0answers
3 views

QGIS: how to identify a single raster layer on a big project?

I have QGIS project loaded with many raster files. For a given area I am looking to identify which (raster)layer provides the visible data. To start, I will already be happy with a manual solution. ...
0
votes
1answer
11 views

How does the radius work in Trilateration

I've been trying to understand the trilateration algorithm based on the wikipedia article. As of now, I have a system where I have the distance of 3 sensors wrt my position and i have the exact GPS ...
1
vote
0answers
23 views

How to interpret Lidar scan line problems?

I am calculating various gridmetrics using the Lidar processing tools in FUSION. The dataset I am working with contains 154 flight lines of high density data, at a nominal pulse spacing (NPS) of 1.5 ...
1
vote
0answers
8 views

Accessing results window from ArcObjects not using Geoprocessing

Is it at all possible to write messages to the results window in either/both ArcMap and ArcCatalog, straight from ArcObjects? I understand that each result comes from running a geoprocessing tool, ...
1
vote
1answer
14 views

QGIS 2.4 Attribute Table Search Bar?

I am learning how to use QGIS and am following various tutorials. My version of QGIS (2.4) does not have a "look for" search bar in the attribute table window as seen in older versions in screenshots ...
1
vote
1answer
15 views

QGIS GUI: How to get independant windows?

I am working with the georeferencer plugin, and I would like to have it working in fully independent windows. Is it possible ? Thanks for your help. Context: I am working with qgis 2.4 under ...
0
votes
0answers
12 views

Editing Feature Class using ArcObjects

I have a problem with editing feature class using arc Objects.Indeed I am working on it for a while and cant find any solution into doing it..I asked a question before about how to connect to database ...
0
votes
0answers
22 views

Moving object of fixed dimension without distortion

I am trying to move a polygon object in a shapefile to a new location. I will perform an offset so that the process can be automated by shifting the object to a new geographic coordinate or moved by ...
1
vote
0answers
9 views

Maperitive rule per source

I'm trying to make my own tiles for OpenStreemMaps but with a more "Google Maps" look. After a long time of playing with the rule properties I finally have the look I want but I have a problem. The ...
2
votes
2answers
224 views

How likely is it that Smartphone Camera GPS coordinates are wrong?

According to the coordinates printed directly on this photo of my late son Kelvin here: https://www.dropbox.com/sc/w6tvwuvbosuh9rk/AADzT-3vDXcFQ9LnKK1BYMZUa ...and the Exif data from the .jpg: ...
0
votes
3answers
24 views

Calculate distance using 2 sets of lat/long values in the same record

I have a point layer with over 90K records in it. For each record I have lat/long field for incident, and lat/long for engine location. Is there a way to find the distance between Incident point and ...
1
vote
0answers
12 views

How to create randomly points within polygons for each row of a dataframe matching an Polygon ID with R

My question is similar to this post, but because there are no "perfect" answer and above all no reproducible example I open this question. I have a "SpatialPolygonsDataFrame" and a data frame. Both ...
0
votes
1answer
10 views

How I can get coordinates by clicking on the QGis Canvas with PyQGIS?

Please, does anybody knows if there are any procedure on QgsMapCanvas (pyqgis, qgis) in order to obtain a pair of coordinates by clicking on the map canvas? Are there any python code I can see?
0
votes
1answer
21 views

Having trouble with clipping tool giving incorrect shape

I am trying to clip a shapefile of the Midwest using a Great Lakes shapefile so that it matches my political areas boundary. Whenever I use the Clip tool, it outputs the lakes clipped to states, ...
0
votes
0answers
8 views

Obtain an altimetric map from a layer with lines

I have a layer with contour line and I need a map with polygons colored in funzione of altitude. It's possible in arcMap, it's also possible in qgis? Thanks!
0
votes
0answers
12 views

postgis loader osm shapefile

I downloaded the map of my city already in shapefile into postgis http://metro.teczno.com/ to load in order to consult routes using pgRouting. Iss happening the error: http://metro.teczno.com/ ...
1
vote
1answer
25 views

Using get count with if statment

Pretty simple question though I am struggling with how to operationalize this, I want to rename a shapefile based on the number of features it contains. My initial thoughts are that I would need to ...
0
votes
1answer
35 views

How can I perform linear regression on a file geodatabase table in ArcGIS?

I'm trying to use the Ordinary Least Squares tool in ArcGIS 10.2 but it only accepts feature classes as input and I have a file geodatabase table. I realize that I can export the table to Excel or ...
0
votes
0answers
10 views

Failing to get wkt to reference for a multiline

I apologize, I'm quite new to WKT (and most everything else). I have a shape that I've exported to csv. & geoJson to be loaded into CartoDB. Unfortunately, the geoJson doesn't work so I am trying ...
0
votes
1answer
4 views

OpenGeo-Suite SDK add Pan button

Ok, this may obvious but I can’t find the answer anywhere... I´m building an app using OpenGeo Suite SDK and I need to add a Pan tool. By default the pan option is activated, but, if I enable another ...
0
votes
0answers
6 views

How can I fix the issue in the TIGER loader that causes it to fetch all files when loading Kansas?

I've discovered a bug in the TIGER loading script provided by Postgis 2.1.2. When loading Kansas (state code 20) I get FTP statements like the following: wget ...
1
vote
1answer
22 views

Identifying user triggering ArcGIS Server invalid username or password error

Can anyone tell me if there is a way to identify the culprit of an "Invalid Username or Password" error in ArcGIS Server logs? For source, it just says 'Admin' for source, and nothing for User. Is ...
0
votes
0answers
6 views

GRASS: v.drape, v.split and v.to.db on spearfish sample data

I am new to GRASS and started training on the spearfish sample data set in GRASS 6.4.3. I selected a bicycle tour and transformed it into a polyline. My next goal is to read out the slope and ...
0
votes
1answer
14 views

Setting the Geometry with sql query

I am trying to merge data from a U.S. states shapefile with data on each state. I used this SQL query which is supposed to work: SELECT * FROM child_poverty_by_state UPDATE child_poverty_by_state ...
0
votes
2answers
33 views

ArcGIS for Desktop Concurrent Use

For ArcGIS for Desktop (Concurrent) users how do you add multiple computers so that they can also use ArcGIS for Desktop as well? Is it through the License Manager, ArcGIS Administrator, or is there ...
0
votes
0answers
8 views

Remove last line segment of an OpenLayers.Control.Measure

i'm using OpenLayers library, i'm trying to delete the last line segment of a drawing realized with the following code: layerLine = new OpenLayers.Layer.Vector("layerLine"); layerLine.id = ...
1
vote
1answer
21 views

Projecting INEGI shapefiles from Mexico

I have two INEGI files from Mexico (1990 and 2010) that I want to use the same projection. The 2010 file works fine (see below) and I would like the 1990 file to match the 2010 one. The shapefiles are ...
2
votes
3answers
42 views

Take parallel lines and automatically move them apart

Rather than collapsing parallel lines, I am looking for a process that would separate them. There are a number of lines on the network that run too close together to distinguish as separate ...
0
votes
0answers
11 views

How do I sync Google Spreadsheet data with a filled contour Google Earth map

I have a google spreadsheet file with the following data. 40 -75 32 The first column is latitude. The second column is longitude. The third column is temperature. How would I a. Make this into a ...
2
votes
1answer
35 views

Can I change how Maplex decides which duplicate labels to remove?

I have a lot of recreation location points, and most of them are labeled. Sometimes there are many points close together which really only need one label. For example, the recreation location below ...
1
vote
0answers
20 views

Features in .shp can't be identified & won't render

Using QGIS 2.4.0 on Windows 7 Service pack 1. I have several .shp's, all polygons, that give me the following problem: 293 features are listed in the metadata and shown in the attribute table but the ...
1
vote
2answers
67 views

How to convert data from a .gdb into a shapefile without ArcMap?

I have a .gdb folder with LOCK Files, FREELIST Files, ATX Files, GDBINDEXES Files, GDBTABLE Files, GDBTABLEX Files and, SPX Files. I want to convert the parcel data within this folder into a ...
2
votes
0answers
24 views

Mapping Instagram Photos

Is there a tool I could use to map Instagram photos that are using a specific tag? I don't necessarily want to show the image on a map, but rather a pin that someone could hover over to see the image. ...
1
vote
1answer
14 views

How to export drivingDistance results in pgRoutingLayer on QGIS 2.2.0?

Hi and first of all congratulation for the great work on working and explaining the posGIS functions in QGIS : it makes this rich GIS enven richer. Thank's to Underdark's pgRoutingLayer extension, I ...
0
votes
0answers
8 views

How to configure osm2po to ignore certain class types?

I'm trying to import data using osm2po but am only interested in driving distances, so I'd like to omit all footway, cycleway, steps, etc. in the imported dataset. How can I configure osm2po to do ...
3
votes
0answers
16 views

Adding GUID field with ArcObjects

I'm trying to add a GUID field programmatically to an existing FeatureClass using ArcObjects. Here is my code: ISchemaLock schemaLock = (ISchemaLock)ipFC; try { // A try block is necessary, as ...
1
vote
0answers
38 views

How do you modify selected geometry with a function in qgis python console?

My example use-case is that I want to redistribute vertices along lines as in Redistribute linestring vertices to specified distance and I've written some functions to do some of the work: import ...
1
vote
1answer
32 views

How can I convert WKT to SHP?

Using ArcGIS, ArcInfo and fme, I would like to transform data which contains wkt geometries (points, lines and polygons) into SHP. Has anyone a workflow for doing such a transformation?
1
vote
0answers
11 views

How do you determine which dbclient connection property to use for an Oracle SQLWorkspace connection?

I have an Oracle11g database that I connect to via a SQL Workspace; however the actual dbclient string value that works differs depending on machine (and I'm guessing oracle client configuration). On ...
2
votes
1answer
26 views

How to do loops on raster cells with python console in QGIS?

I'm new here and beginner with python. I'm looking for a solution to my problem for some hours but now you are my last chance... I'm using the python (2.7.5) console in QGIS (2.4.0). Is there a ...
0
votes
0answers
38 views

Creating a polygon around features

I want to create a polygon around a number of points so that all the points occur within the polygon. The purpose is to do this to a number of different features and see where they overlap.

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