1
vote
0answers
5 views

Clip layout view to output graphics extent using python

I need to implement, within this very simple piece of code, the option that replicate the "Clip to output graphics extent" available from the ArcGIS 10.0 Export Map UI standard command. Is it ...
0
votes
0answers
3 views

QGIS: Finding electric network loops

With QGIS, how can we analyse an electrical network to find loops? Using Python is not a problem, however there is not a solution in the QGIS Python API. The QgsGraphAnalyzer has dijkstra and ...
0
votes
0answers
4 views

QuickOSM returns no result

I am trying to download the polygons for the Umweltzone Heidelberg from OpenStreetMap using QuickOSM in QGIS. I queried by name as shown in the screenshot: The corresponding OSM script looks like ...
0
votes
0answers
8 views

Error in Editing Point Shapefile: I can't add a new point feature

I want to add a point to a point shapefile. I place the cursor in an empty field. The strange thing is that the point of the point shapefile that is nearest to the cursor is highlighted. If I click ...
3
votes
3answers
45 views

Is there a quick way to clear all the data from a layer but leave the polygons in place?

I have a layer with several polygons, each of which has data in over 100 fields. I need to create a new layer with all the same polygons, but with all their data fields blank (set to 0, Null or empty ...
1
vote
2answers
20 views

How can I visualize a series of points on a world map?

I'd like to run a big list of IP addresses through geolocation and then display them on a map, most preferably an OpenStreetMap one. While geolocation will probably be easy using GeoIP, I'm looking ...
0
votes
0answers
12 views

Openlayers 3: Hover effect below top layer with labels?

I am using Openlayers 3 and I want to have a hover effect of a polygon layer below the top layer with labels. I can arrange the order of the layers that the labels are on top of the polygon, but ...
0
votes
0answers
10 views

Remote SQL Server, Crystal Reports and Geospatial Join

I have: A remote SQL server (2008 R2) that I have access to (But NOT full control of) which contains my source data including OSGB 1936 Geometry [ESPG: 27700] In house SQL Server 2008 R2 A Crystal ...
0
votes
1answer
13 views

R filter shapefiles with dplyr

How to filter shapefiles data in R with dplyr and then put it in a leaflet map? not reproducible example sorry: library(dplyr) library(leaflet) library(sp) library(maptools) library(rgdal) ...
0
votes
1answer
8 views

Defining custom basemap toggle in ArcGIS API for JavaScript?

I'm using arcgis js spi for 3.13 edition, when I using basemaptoggle widget from https://developers.arcgis.com/javascript/jssamples/widget_basemap.html is ok, but when defining my own basemap is ...
2
votes
0answers
19 views

How to rename field names in a shapefile attribute table without table manager using python

By using the table manager we can rename the field names but i want to rename of fields using python. How can i do that?
0
votes
0answers
7 views

Query PB Spectrum WMS with Openlayers3

I want to get tiles with CQL_FILTER on spectrum server. There are many examples on geo server but i cant find spectrum example. There is code block: WMSLayer = new ol.layer.Tile({ source: ...
0
votes
0answers
5 views

ArcGIS Runtime SDK for .NET (Windows Phone) - ArcGISLocalTiledLayer Issue

I'm developing Windows Phone 8.1 client for our company ArcGIS maps. Online layers works fine, but I need to deliver offline maps (Map Tile Package - .tpk file) to users with bad connectivity. My ...
-4
votes
0answers
18 views

reading shapefile and converting into .txt file [duplicate]

i have to convert a polygon shapefile (specifically read .dbf file) into a text file. can anyone suggest how to do the conversion and reading of the shapefile using C# or vb.net. thank u
1
vote
0answers
10 views

how to make rectangle selection by mouse on my map(world shape file) in qgis in python

I wanna do rectangle selection by mouse on my map(world shape file) in qgis in python and extact the lat log of selection area but I am unable to understand how to do it I never get any idea i am new ...
1
vote
1answer
19 views

QGIS Print composer dynamic labels

I have created an Atlas. One of my layer contain height restriction for bridges. I wish to create a label that show the lowest height restriction. I need to get the height values from my table that ...
2
votes
2answers
63 views

Boundary from Points

I have a point cloud and need to process a very detailed boundary around the outer points. Is there a tool in QGIS? Convex hull is not detailed enough. Thank you!
1
vote
1answer
11 views

How to read non-spatial data using PyQgis?

I'm generating maps with QGis. What I do is generate a bunch of non-spatial data on a set of cities (using VBA), and still using VBA, generate a python code that will automaticaly output general map ...
0
votes
1answer
17 views

Leaflet map.locate, very long response time

I'm using leafletknn to search the nearest geojson element from the user location. I add a map.locate method that zoom to the user location. The response time is longer than when I directly use it... ...
0
votes
0answers
8 views

How to fit gps trackings to a line with a known heading?

I have gps trackings that I know they fall into a certain pattern - a line with a known heading. How do I find the line that minimizes the distances of the points from it but is in the correct ...
2
votes
1answer
20 views

Zoom to a specific location in ArcMap Viewer window using ArcObjects

I'm trying to find out how to open Viewer window (menu Windows->Viewer in ArcMap) programmatically and zoom it to a specific location. This is how I can open it: IDataWindowFactory dwf = new ...
0
votes
2answers
14 views

How to convert kml to shape file in Arc Map 9.3.1 [on hold]

I would like to know about conversion tools available for kml to shp file formats. In arc map 9.3.1
0
votes
1answer
17 views

What is the meaning of DN and DRVAL2 categorie?

I try to find the meaning of the categories DN and DRVAL2 when I used them in the command: lrenderer = new QgsCategorizedSymbolRendererV2("DRVAL2" , Categrories ); Is there any tutorial or ...
1
vote
0answers
10 views

Leaflet knn (nearest element) and user location : browser authorisation

I'm using leaflet-knn to search the nearest geojson element from the user location. Basically it shows a feature property (the city name of the element in this case), but i want to add an animation ...
2
votes
1answer
22 views

How to break a closed line when intersect with polygon

I have a number of polygons (in lines shape) which represent the new condition of an area and a numder of polygons (in polygon shape) which represent the old condition of the same area. How can I ...
2
votes
0answers
10 views

Inserting image in an attribute table in QGIS Composer?

I'm trying to create second page of map atlas. In this page I need to show all records in the range of current atlas page. I've used Insert Attribute Table tool in composer and it worked. But I need ...
0
votes
1answer
13 views

GPS points of a vehicle snapped to a specific polyline path [duplicate]

So I have been capturing bus GPS locations for a while now, and I am became interested in snapping them to their corresponding polyline (route). While at first this seemed like an easy enough task I ...
0
votes
0answers
10 views

Parcel versus address

My understanding is that one parcel can hold several addresses, but one address can only be part of one parcel. I am asking because I would like to see would it be more accurate to query an address ...
0
votes
1answer
16 views

ASCII to Raster Tool

I am trying to use the inbuilt ASCII to Raster Tool that is in ARC tool box. I have a ASCII file I have downloaded from a website: Code is Here I have saved as a .txt file and I am trying to import ...
0
votes
1answer
15 views

Is there a method to create watershed on google earth?

I want to create a watershed boundary for a lake only using google earth without using other source of data like srtm etc. Since we get the height of the location can we use it somehow and create a ...
2
votes
0answers
10 views

Setting Field in ArcMap Symbology Properties using ArcObjects?

I am programmatically rendering a feature layer in ArcMap but I can't set the Field property in the Symbology properties form. This results in the layer having the correct render/breaks/legend ...
3
votes
1answer
58 views

Union on lines using ArcPy?

Essentially I want to union multiple (20) congruent line shapefiles, where overlapping line segments in the input shapefiles are combined into a single resulting output shapefile. But I can't union ...
1
vote
1answer
11 views

Zooming to ArcGIS JavaScript API graphic feature, but not to full extent?

I feel there must be an easy solution for this because I can't be the only one who's had this need before. I have a Python based geoprocessing service that gets called in my web app. The web app ...
-1
votes
0answers
13 views

Deriving strike and dip from DEM? [on hold]

Is it possible to derive strike and dip data given an input DEM? Traditional methods involve field investigations, but i wonder if it is possible to obtain such information purely from a given DEM?
0
votes
0answers
14 views

Has there been any further development in the integration of QGIS plugins to Processing Modeler? [duplicate]

I have read that there is no ability to use QGIS (2.8) plugins when building a model in Processing Modeler. All of these posts were a few years old so I was curious if there was any development or ...
3
votes
0answers
31 views

Should ArcGIS Desktop users upgrade to Windows 10? [duplicate]

The question Will ArcGIS 10.1 run on the new windows 10 technical preview? was never answered, and Windows 10 is being released imminently. Somewhat worryingly, the most recent ArcGIS Desktop system ...
1
vote
1answer
12 views

How to Convert Just a Sulawesi Map to Leaflet

I'm still develop a Web GIS that show population distribution in form of heat map. I'm use Quantum GIS with Open Street Map & Q2Leaflet Plugin as a tool to accomplish it. The problem is, I just ...
1
vote
0answers
12 views

How to accelerate my python looping process for A-star path finding on DEM surface?

I try to make an A-star Path Finding program base on tile-graph (image raster data as graph) where each pixel values represent as cost and elevation.. In my case, DEM raster data was called by using ...
2
votes
0answers
18 views

Spatial Analyst tools adding extra column of NoData

I've got a script tool in ArcGIS that runs Curvature and Aspect from Spatial Analyst, and the outputs of both contain an extra column. I've attempted to set the extent in the both the tool and the ...
1
vote
0answers
36 views

Repeated GPS coordinates in data are creating stacked points on map in QGIS

I have 30+ events of data collection for each GPS location (previous person on project has simply added new rows for each data collection period). When I import the excel file (via CSV format), each ...
3
votes
1answer
22 views

Showing multiple burials in same grave for Cemetery GIS?

I am an intern creating a Geodatabase for a municipal cemetery. The one lot can hold up to 3 people (2 people, 1 cremation) two people at the most. How would I show that information on the map ...
1
vote
1answer
16 views

How do I convert ESRI X,Y to Lat, Long for Google Maps?

I've downloaded the data from NYC Parking regulation. I want to plot that on Google Maps. I use http://www.shpescape.com/ft/ to convert to Google Fusion Maps but the data is in X,Y coordinates instead ...
0
votes
0answers
21 views

How to Access tables and feature classes stored in Dropbox using Python

I stored some tables and shapefiles in by academic Dropbox account. I am trying to write the code block that will set the directory path to the featureclasses in Dropbox to a variable that can be ...
1
vote
0answers
14 views

Merging two or more selected features from same layer into one feature with ArcPy?

I need the functionality of the editor > merge command for use in a python script tool. I realize this function is not directly accessible through ArcPy, but I am hoping someone can help with a work ...
0
votes
0answers
17 views

combing two layers dissolve and simplify

I am trying to combine a dissolve with a simplify polygon layer I've created. When doing conversion of layer to kml it says I have too many vertices hence the need for simplification. How can this be ...
1
vote
0answers
15 views

Elevation Dataset problems

I am doing some processes with the 1/9 arc second NED datasets for a few states. I wanted to know if any one else has noticed the NED data obtained from https://gdg.sc.egov.usda.gov/ have different ...
1
vote
1answer
30 views

InsertCursor fails when trying to insert XY point data

I have a text file with X and Y coordinates, as well as a third piece of information. I'm trying to create a point feature class from this text file by use of an insert cursor. I'm working with ...
0
votes
0answers
7 views

Annual Mean temperature of Africa countries for past 50 years? [migrated]

I am trying to find annual mean temperature data for all countries in Africa for past 50 years. The data should not be mean of the entire 20 years, but should be yearly mean. Can somebody please ...
0
votes
0answers
7 views

Tilemill/PostgreSQL Connection refused Error

I have been trying to set up a MBTiles Export using PostgreSQL 9.2 and the Latest version of Tilemill. According to the postgreSQL Logs, I am receiving an error, and I cannot figure out why. I have ...
2
votes
0answers
13 views

Getting points from a particular section of point cloud data

I have a las file and I'm trying to analyze it using ArcGIS/ArcPy. Are there any built-in functions that I can use (maybe using a tool or las data property) to isolate a chunk of points? I want to be ...

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