1
vote
1answer
13 views

dermacation label

i have 3 different features which are country.shp, division.shp district.shp what should i do if i want to make the label is arrange like figure 1 because when i label all the features using ...
0
votes
0answers
29 views

Fileinput error - input already in use [on hold]

I have a short script I'm using to create a feature class and then populate from a text file to create a polygon. I can create the fc ok but it hangs up on the latter part of the script with the ...
0
votes
0answers
15 views

How do I change the order layers are displayed in in MMQGIS?

I am dealing with hundreds of different layers, all of which have one of 6 names - not by choice, that's just the way they show up when I import them. I am trying to merge all those with the same ...
1
vote
0answers
16 views

Import QGIS Python modules in Python command line or standalone script

I am running a Windows 7 machine with Python version 2.7.8 (32 bit). I installed QGIS 2.4 (Chugiak) from OSGeo4W and simply want to be able to import the QGIS Python modules (e.g. qgis.core) into ...
0
votes
1answer
20 views

Meaning of Spatial Join ERROR 000840: The value is not a Feature Layer?

I'm using ArcGIS (ArcMap) 10.2 to determine the relative location of points of land to a regulated area. I downloaded a layer (.lyr) file that displays the regulated area, and am able to display that ...
0
votes
1answer
32 views

Split a line from point but with a certain distance [duplicate]

I am using ArcGIS 10.2. I need some suggestion about this problem, maybe there is a certain tool, but I think no. I think some python code... but I do not know from where to start :( I have two ...
0
votes
0answers
23 views

Polygonize only pixel values of 1 from a raster

I have a raster mask that I have created in QGIS (2.2.0) that consist of 0, 1 and nodata values. I would like to end up with a polygon dataset that consist of only the value of one pixels from this ...
0
votes
1answer
15 views

Chosing a GeoCMS server collaboration tool

I have seen a few things about different GeoCms. Researching these, none of them by default to actually seem to be a GeoCMS. Somehow when you hook these up to mapserver they become a GeoCMS. I do not ...
0
votes
1answer
13 views

How do I reformat numbers to only show a certain number of significant digits in CartoDB?

I need to round numbers that are in my table in CartoDB, so that in the Map visualization infowindows I only show results to two decimal digits rather than the long decimals that are currently ...
0
votes
1answer
46 views

Determining direction of longest segment of polygon?

I have a shapefile with 9000 agriculture fields and what I like to do is to determine for each field (=each polygon) the direction of the longest segment. For instance, the selected polygon in the ...
1
vote
2answers
22 views

How to extract a new linestring vector from a existing multipolygon in QGIS?

What I want to do: create a new line (named linestring in Postgis?) from existing multipolygon layer in Postgis. Purpose: once these lines are created, I'll run some distance calcs from specific ...
0
votes
0answers
26 views

Calculating driving distance from many nodes (sources) to one target using PgRouting?

I'm using a PostGIS / pgRouting database setup with a road network. And I want to calculate a driving distance and shortest path from many sources to one target. I found that pgr_kDijkstra can ...
4
votes
1answer
158 views

What is the internal format of PostGIS?

PostGIS stores its geometry entities as long strings: SELECT ST_GeomFromText('POINT(32.0 34.0)',4326); st_geomfromtext ---------------------------------------------------- ...
0
votes
1answer
6 views

OpenLayers 2.13 floating components resize not working

In my application i am using ExtJS4. After upgrade from OpenLayers 2.12 to 2.13.1 i noticed that i am unable to resize windows (floating components) that are on top of the map, like the resize action ...
-2
votes
1answer
34 views

How can I find a Douglas-Peucker algorithm for simplification? [duplicate]

I want to understand simplification methods in GIS. I searched the Internet and found that the best simplification method is the Douglas-Peucker algorithm. I could not find any information about the ...
1
vote
1answer
30 views

What is best way to reorganize osm into PostGIS database entity?

I'm just wondering how to reorganize the OSM given entity to more flexible and schematic purpose. The OSM gave 4 entities the planet_osm_line, planet_osm_point, planet_osm_polygon and ...
2
votes
2answers
50 views

Generating polygons with shared boundaries using QGIS?

Essentially the problem is that if you digitise each polygon separately the boundaries will not match exactly. My instinct is to have a table of line segments and generate the polygons from that using ...
1
vote
1answer
21 views

qgis printcomposer: can I select features whose attributes to show

I am using the atlas to generate a number of maps. Each map is of a particular zone represented by a multiline vector layer. I have another layer with point data and each map has an attribute table ...
0
votes
1answer
14 views

qgis printcomposer: can I wrap text in attr table?

I have some longish text attributes and when I try and put these on the map using the attribute table they get truncated. Is there a way to get these long lines wrapped.
0
votes
0answers
6 views

Inserting full bleed images in browser background instead of maps using CartoDB?

I am building a product that will utilize high fidelity photography. I would like to show my photos in a slideshow format that takes up the entire area of the browser. CartoDB and the Odysssey.js ...
0
votes
0answers
15 views

How convert a genuine UK shapefile(other than the one from natural earth) to d3/topojson?

I am following Mike's page (http://bost.ocks.org/mike/map/) to make UK's map. I've converted Mr. Crone's UK postcode shapefile into topojson but failed to display it correctly. ...
0
votes
1answer
23 views

Have Atlas sorting and filtering controls been removed in 2.4?

In this diagram the atlas generation tab of the print composer has several controls that I don't see in my version (2.4) of QGIS. In particular the feature sorting and feature filtering, both of ...
1
vote
1answer
51 views

Extremely slow processing time to map lat/lon data onto census shapefile with ArcPy?

I am a newcomer to ArcGIS and Python so I would greatly appreciate any and all input on this issue. What I am trying to do is very simple: map 400K business locations using lat/lon coordinates onto a ...
0
votes
1answer
30 views

How to create polygon feature class from UTM coordinates?

I am working to create a polygon from UTM coordinates. The script I am using fails with a "must be a sequence, not float" error: Traceback (most recent call last): File "F:/sample/clipTiles.py", ...
2
votes
1answer
30 views

Projection mismatch when plotting precipitation with ggplot

I'm trying to plot accumulated precipitation in Brazil for a given period, see code below: Load packages library(raincpc) library(SDMTools) library(raster) library(ggplot2) library(rgdal) ...
0
votes
0answers
5 views

Use Dojo to load modularized widget config files

I've taken a basic webmap 'ESRI HomeButton' and I'm trying to create a modularized webmap setup from it. I want to break down this simple webmap to have it utilizing a module system with config files ...
0
votes
0answers
27 views

QGIS formats support [on hold]

Is there any plugin or any feature which will supports more formats than existing formats. Because ARCGIS has Data interoperability tool which can support same as FME Formats. Is there any thing ...
1
vote
1answer
21 views

ESRI : 54019 or World winkel II in QGIS

Currently I didn't find World winkel II or ESRI : 54019 coordinate system support in qgis. One of our client using this.. Can any one tell me a solution to load shape files,which are using his ...
5
votes
1answer
217 views

What are the coordinates of the mysterious hole in Siberia?

I am interested in taking a Google Earth aerial view of the mysterious hole recently discovered in Siberia and perhaps doing some hydrological analysis of the area in a GIS. However, there appears to ...
1
vote
0answers
20 views

ArcGIS for Javascript Template available?

ESRI has a stack of templates in the ArcGIS Online section. But when you download them it turns out that in order to make them run, you have to first create a webmap via their WebMap Viewer ...
0
votes
0answers
8 views

Create a PDF with map imagery and feature data from ArcGIS API for Javascript?

I would like to allow the user to zoom to a particular zoom, within their preferred extent, and then send this information to a PDF as well as relevant information from visible features. The end ...
0
votes
1answer
17 views

ArcObjects - Geometry type select with Vbnet

How can I read the geometry type of shapefiles with ArcObjects and Vbnet? I want to check whether it is a point, polygon, or a line.
1
vote
2answers
31 views

How to add polygon layer into raster data?

I performed a supervised land-use classification with Erdas. Landsat data was used in ArcGIS to Digitize urban areas as polygon shapefile. I want to insert these polygons into the land-use raster ...
-3
votes
0answers
45 views

where can i find latitude and longitude of all villages of india?

i developed a website for commercial use.i already have all data(Latitude & Longitude) of all city's of India but now i require all Village's data(Village Name,Latitude & Longitude). where can ...
0
votes
1answer
23 views

Querying Arcgis file geodatabase from sql

I need to compare data in a sql db with data stored in an arcgis file geodatabase. I'm not interested in the spatial attributes, only the added text attributes. What's the easiest way to do this? I ...
2
votes
2answers
33 views

I want to browse a city map offline, what are my options?

I found exports on http://download.bbbike.org/ and http://metro.teczno.com/ But it's not tiles, so it's not really usable unless I render it. Are there software where I can browse openstreetmap.org ...
0
votes
1answer
23 views

How to Manually add a Z variable in Qgis onto a vector layer

I am trying to manually add one constant Z-variable (e.g. 200meters) across an entire Vector Layer in Qgis so that I may eventually use the Interpolation plugin to generate a Tin. I have not been ...
1
vote
0answers
15 views

ArcMap shuts down when I perform GWR with distance as explanatory variable

I have an integer dependent variable, one integer explanatory variable, and one float/double explanatory variable. The float variable is distance of the given observation from a single point on the ...
1
vote
1answer
22 views

ST_ClosestPoint in 2D but retaining Z value

I have a query in PostGIS where I have a two geometries, a MultiLineStringZ and a Point. I want to find the 3D point on the MultiLineStringZ closest to the Point by it's flat 2D plane distance, so ...
0
votes
0answers
14 views

How to align edge of a polygon from one shape file with edge of polygon from another shape file

Initially I had a kml file of geographic regions. Each region is a single polygon. I have imported the kml file into ArcGIS as a shape file. Several of the sides of the regions are supposed to align ...
0
votes
0answers
9 views

Store external file path in excel [on hold]

I want to save the file path of all my files into a single excel. Am struggling in searching those files. Is there any formula to fetch file path. Thanks in Advance.
2
votes
1answer
27 views

ArcGIS Spatial Statistics: Distance to 3rd/4th/5th closest feature

We have an algorithm which requires us to produce a score based on the distance from any given cell in an output raster to a score calculated from the distances of the 3rd closest, 4th closest, and ...
1
vote
1answer
24 views

What causes this error when loading plugin

After installing pyspatialite on my Mac two plugins fail to load with this error:: This plugin is broken invalid literal for int() with base 10: '2-spatialite' I am fairly sure that the offending ...
0
votes
0answers
4 views

Saving large volumes of .grd and .dat files automatically on Surfer 8?

Here's our data: we have air sample measurements for every hour for two complete years. All measurements are in one large .csv database. Our task: Each hourly measurement for two years needs to be ...
1
vote
2answers
30 views

How to find the minimum pixel value within a region of interest?

I am working on a Python script for dark object subtraction, a radiometric correction method for remotely sensed data.To accomplish this, I need to find the minimum band pixel value of a waterbody ...
1
vote
0answers
14 views

Migrating from ArcGIS for Server on Amazon Web Services (AWS) to local machine? [on hold]

We have a ArcGIS for Server instances hosted by Amazon Web Services (AWS) with many volumes and would like to move all of this from the cloud to a local server. We have a number of instances, and ...
-1
votes
0answers
17 views

Points to Line tool drawing lines backwards [on hold]

I am having an issue with the points to line tool. It is drawing every line backwards so they are all going in the wrong direction. Does anyone know of a setting that maybe I could be leaving off ...
2
votes
1answer
30 views

Randomly choosing one from multiple fields in Field Calculator of ArcGIS for Desktop?

Using the Field Calculator in ArcGIS for Desktop, I want to randomly choose one field from a list of 10 fields (strings). The Excel equivalent, which is working, is: =INDEX(A2:J2;rnd()*10+1). How ...
1
vote
0answers
9 views

CartoDB Toggle Map View?

I am trying to follow this tutorial that has buttons to toggle (all points are on the same layer) CartoDB Toggle map tutorial I try to follow as close I can for my own purpose but I always get the ...
1
vote
3answers
29 views

How to convert crs projection of Map in qgis

I am totally new to GIS. I have a qgis project. I am adding the screenshot. As you can see the map is sort of rectangle in projection. How can i project it like this (without the grids) Thanks ...

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