-2
votes
0answers
3 views

How to add button in google maps where i have polygon?

we are plotting polygon on google map using script.I want to add one button where my polygon plots.
0
votes
0answers
4 views

How to concatenate 3 columns vaues as one column

I have 3 columns Districid mandalid villageid 20 17 1 20 17 2 ... How to concatenate above 3 columns? answer shouldbe 2017001
0
votes
0answers
3 views

Fusion Table Remove Merge

I am using Merge Fusion table. I have merged 3 Tables. By mistake I merged a table twice. So table is showing same information twice. How I can remove a merge from the table ?
0
votes
0answers
5 views

Export .dbf maintaining column data type

I require a shapefile's .dbf to contain two types of text columns VARCHAR(n) and CHAR(n) to meet specs (attribute format) of gov receiving body. Have to send them the .shp, .dbf and .prj. Within ...
1
vote
1answer
10 views

Most optimized way of extracting data from planet.osm

I want to cut extracts from planet.osm.bz2 . I have found this command bzcat downloaded.osm.bz2 | osmosis --read-xml enableDateParsing=no file=- --bounding-box top=49.5138 left=10.9351 ...
1
vote
1answer
24 views

My class using ogr to calculate distance is returning incorrect results away from the equator

In an answer to this question ustroetz kindly provided some sample code for use of ogr to do lat/lon distance and point in polygon calculations. I've created a Python class based on his example to do ...
-1
votes
0answers
29 views

Problem with Select By Location in ArcGIS 10.1

I've used Select by Location for years without issues and just used it earlier today without any problems. However, in the last hour or so I'm getting a pop up titled "Add List" and within it an ...
0
votes
0answers
10 views

How to display selected features in ArcGIS Identify Dialog using Visual Studio 2010/ArcObjects?

I'm brand new to ArcObjects SDKs and am struggling. I have a Python Add-in performing a query to select records (works great)and now trying to call the identify dialog via an .NET addin button that ...
2
votes
1answer
23 views

how do I reestablish all feature class references in mxd after their names change?

I have 200 shape files which have been named using an integer at the beginning of the name...i.e 01.03.shp 01.04.shp etc. They are all symbolized within an mxd document. I need to import these shapes ...
0
votes
1answer
19 views

How to use DateDiff() Function across day transition in ArcGIS Field Calculator?

I am trying to calculate the time difference between two fields using the DateDiff() function in minutes. I have successfully calculated the times that fall within the same day but I am having trouble ...
1
vote
0answers
26 views

Is there general Earth Projection in ArcGIS for Desktop?

I'm starting a new personal project and I need a little bit of helping on setting it up. First off I'm trying to determine the area of a rectangle that is 1 mile in width and the circumference of ...
0
votes
1answer
15 views

Calculate text field based on codeblock query of numeric field

I am trying to populate a field with a L/R bank designation based on a route measure (as part of a larger script), but I am struggling. I have a shapefile created (tir_pts_lyr), I have a blank column ...
1
vote
1answer
35 views

Can't find the toolbar for sorting the table of contents in alphabetical order in Arcmap!

I am using ArcGIS Desctop 10.0 Service Pack3 and I'd like to sort the table of contents in alphabetical order but following Sorting the table of contents in alphabetical order I can't find the ...
0
votes
1answer
15 views

Street index to CSV/Excel file

Anyone know how to generate a street index for a map with accompnaying page numbers that are data driven? I am use the toolbox for creating the street index but exports to PDF however I need it to be ...
0
votes
0answers
16 views

Split polygon into four with respect to single point

Some days ago one of my colleague came to ask me a query related to Geometries. The situation is as....There is one Polygon(suppose a city polygon) and there is one point(suppose user's current ...
0
votes
0answers
25 views

How to convert from Cartesian (X,Y) to WGS84 Lat Lon

Given that I know the origin and the x and y cartesian coordinates. How do I find the corresponding lat lon? lat = lat_origin + ((y / 1000.0) / (111.319 * rad_to_deg)); lon = lon_origin + ((x / ...
1
vote
1answer
24 views

Excel/Google Docs > Plss Map

Is there a way to map out PLSS (Public Land Survey System) TWP (township),RNG (range) and Section based off a field in google docs? I was thinking if you had your first column with the PLSS area in ...
0
votes
0answers
12 views

How to generate polygons upto the edge of other polygons?

I am doing some work on a pipe network (blue lines) and I am trying to attribute the information about the street to the pipes. I have 2 polygon layers one of the blocks (green hatch) and one of ...
0
votes
0answers
12 views

how to apply adress-geotags

hello dear linux experts what i am trying to do now is .....a little task i wanted to run a osmconvert & filter with the following goal - to get the following tags out of the datas: ...
0
votes
0answers
18 views

Convert Shp to KML error org2org Error4

I am attempting to convert Shp file to Kml using command line org2org application. I have used this in the past to convert more simple shp files and was sucessful. However I get an error message when ...
1
vote
0answers
11 views

Focal Mean of neighbors using ST_DWithin on points in PostGIS

I'm trying to calculate focal means on a grid of points in PostGIS. I know that a raster calculation would be more efficient, but I only need to run the algorithm once to get the data, so I don't ...
3
votes
1answer
36 views

Python resource for remote sensing?

I am looking for a good resource (MOOC, book, etc..) to teach Python for remote sensing applications. I am already familiar with http://www.rsgislib.org/ - are there any other resource out there for ...
1
vote
2answers
34 views

How can I speed up these queries

I am trying to make some calculations using PostGIS and PostgreSQL. There are 3 important tables : wbn, wgo and wvb. These tables have about 500.000 objects in them (geometries). The problem is that ...
0
votes
1answer
9 views

Getting Default symbology in a feature class with subtypes

I was wondering if there was a way to get default symbology in a GDB feature class with subtypes? I don't want to create a layer file for each feature class. Is there a way to have the symbology ...
0
votes
0answers
5 views

Read renderer from an ArcGISDynamicMapServiceLayer

Is it possible to read renderer from an ArcGISDynamicMapServiceLayer? I'd need then to change the color in order to create graphics with the same symbol but different color. Something like: var ...
-2
votes
0answers
28 views

brand or model of handheld GPS

What brands or models of handheld GPS are only maximum weight 300g with minimum 10 hrs operational with GNSS?
2
votes
0answers
29 views

Unable to get python-qgis-common on Kubuntu 14.04

just upgraded my Kubuntu from 13.10 to 14.04 LTS and lost all plugins. Found out that "python-qgis-common" is not installed. Tried to install it but was told that it depends on "sip-api-10.1" which ...
0
votes
0answers
16 views

Inserted Images distorted on exported Map

I have a map set that has images on top of the map I have created in ArcMap, that I arranged in layout view. I have tried both PNG and Tiff images, to try to keep the resolution as high as possible ...
1
vote
0answers
13 views

PostGIS 3D Extrude function

I selected buildings from OSM (which represents my city). I insterted a new column 'height' and I filled with a random number exactly number 2, so every building have 2metres altitude. Buildings are ...
0
votes
1answer
22 views

Split a line feature using nearby points

I have a line shapefile and a point shapefile, and the line has its own segments and its attribute table, the point shapefile has points near the line above, not on it and the close ...
0
votes
0answers
9 views

QGIS 2.2 Changeing txt data in theme table not working

A week ago I upgrade from QGIS 2.0.1 to 2.2 and try to edit some simple point themes I made recently. To my surprise, QGIS 2.2 randomly - not allways, does not allow me to change text I type into text ...
1
vote
1answer
57 views

QGIS crash Ubuntu 14.04

Encountering a crash when requesting QGIS 2.2 to access data on desktop machine. Running Ubuntu 14.04 LTS. $ qgis Warning: loading of qt translation failed [/usr/share/qt4/translations/qt_en_AU] ...
0
votes
0answers
26 views

Euclidean distance tool issue,not obtaining output

I'm trying to perform an exercise but I'm not having the output that I was supposed to have. Which says this Procedure: Open ArcMap and load the Spatial Analyst extension: Customize → Extensions → ...
0
votes
0answers
8 views

Split/Erase/Differentiate polygon by polygon within a same layer

Is it possible to split a polygon with a polygon within the same layer in QGIS ? As in the image, i want the Polygon 2 to be split & the pointed area has to be retained as a separate polygon. ...
1
vote
1answer
9 views

Layer cannot be enabled in geoserver after restart the computer

I use PostGIS database, mapserver is Geoserver, everytime I create a workspace to upload layers into geoserver, I can see the layers be enabled. I can see them in "Layer preview". When I restart my ...
0
votes
0answers
21 views

Build Openlayers 3 on Windows

On GitHub is a wonderful installation instructions, but most users GitHub, use Linux, it's not worked on Windows.... https://github.com/openlayers/ol3/wiki/Developer-Guide How can I build OpenLayers ...
2
votes
0answers
19 views

How to analyse point data as covariate for areal data

I have two data sets: a) a set of polygons with areal data variables. b) point measures of various co-variates of interest (note I do not necessarily have a point for each polygon) How do I ...
0
votes
1answer
11 views

Building with MinGW 4.8

I'm working on a project where we would like to add QGIS features to an existing Qt application. The Qt application has been built with Qt5.2.1 using MinGW 4.8 and thus I think I need to build QGIS ...
0
votes
0answers
9 views

Preload tiles in OpenLayers 2 and add them to the map

I have an XYZ layer on an OpenLayers 2 map. Now I've written a function to preload all tiles of map.getExtent().scale(2). That works, but when I pan the map, the tiles still appear after a small time ...
0
votes
0answers
12 views

How to merge 2 shapefiles in ArcObjects

Using ArcObjects SDK for Java, I have the full path of 2 shapefiles: String in1, String in2, and I want to merge them using the geoprocessing tool Merge. I tried to several methods: ...
0
votes
1answer
19 views

QGIS 2.2: GDAL Grid (Interpolation) Error

As much as i understand Raster -> Analysis -> Raster (Interpolation) can provide me with a terrain file out of a shape file with a Z coordinate. I select the input and output file and a Z field. It ...
0
votes
1answer
20 views

Create Random points

I have polygon with an attribute which has numbers populated in it. I would like to create random points for each of the polygon depending on the attribute. How could this be done ??
-1
votes
0answers
36 views

How to return value into a python list using search cursor [on hold]

I would like to retrieve the temporary value which are done from searchCursor. I want those values to be stored inside an array (preferably a 2D array, as i have to store objectid,x,y , also there is ...
0
votes
0answers
27 views

back up of qgis file

Can we recover a previously saved version of qgis file? For example: I have saved my qgis file about an hour but I need the yesterday's back up of qgis file. The file which does contain today's saved ...
0
votes
2answers
16 views

How to get feature from PostGIS to OpenLayers with ASP.NET?

I need to show my feature from this table in PostGIS in my ASP.NET web page web. Has anyone done that?
3
votes
1answer
42 views

Are the functions in OGRPolygon accessible through the python bindings?

I'm currently trying to use the OGR python bindings to process some shapefiles. I want to obtain the number of interior rings in a polygon feature. Unfortunately I'm unable to use the documented ...
0
votes
0answers
8 views

Get LatLng coordinates from SIRGAS2000 UTM 21s coords

I have a bunch of locations (36k) and they are represented using SIRGAS2000 (UTM 21s) coordinates. I need some way of converting them to traditional LatLng format so I can upload them to my database ...
0
votes
1answer
19 views

Where can I find historic aerials for some areas in Dona Ana County, New Mexico?

How do I find several historic aerials from the mid-1970's or early 1980's and where can I download them and I would like them to be free of charge. Cheers,
0
votes
0answers
16 views

How do I use QGIS 2.2 to plot some locations on a map (of the US by zip code)?

I am a newbie to QGIS. I just installed it on my MAC Airbook with Mavericks. How in the bloody heck do I simply plot a few locations on a map of the US? All of the tutorials I can find on the web ...
0
votes
0answers
12 views

Raster vs. Raster Scatter Plot in ArcGIS

I created two raster datasets from the same world view 2 image. One dataset is NDVI, the other is a normalized surface water index (NDSWI). I would like to create a scatter plot for a pixel by pixel ...

15 30 50 per page