1
vote
0answers
4 views

QGIS 2.2: prevent labels being cut off / clipped at edge of map

I've read a few other issues about trying to prevent labels from rendering if they run off the edge of the map canvas. This is particularly a problem in Composer, where I get lots of country labels ...
0
votes
0answers
12 views

Count trees with SAGA GIS?

I have a problem when I try to input A as dsm and b as dem. I followed the steps in this blog http://dominoc925.blogspot.com/2012/02/simple-method-to-count-trees-using-saga.html In grid difference > ...
2
votes
2answers
23 views

How we can get output for os.system() in python?

I wrote the following command in Geoserver rest-api using curl: cmd=curl -v -u admin:geoserver -XGET -H "Accept: text/xml" ...
2
votes
1answer
25 views

What is an efficient Algorithm to draw a straight line from points?

I have some cross section survey data, which is like this: X Y Z pt_dt 2970969.635 359725.0088 83.4242 1-x 2970968.278 359722.2182 83.2591 1-x 2970941.771 359670.127 83.0655 1-x 2970961.369 ...
0
votes
0answers
18 views

How to extract elevation data from ASTER/SRTM?

I just want to know,if there any other tool available in QGIS apart from point sampling tool to extract elevation data from ASTER/SRTM/CartoDEM (for India) data's ? When i convert these images to XYZ, ...
0
votes
0answers
10 views

Display Arabic text in ArcGIS

I have my GDB where names for few fields in feature class is written in Arabic language. when i label them it is displaying label but unable to understand the text as it is symbolizes / coded . Can ...
-1
votes
1answer
21 views

What kind of coordinate system has values like 48569.800mE, 706602.032mN?

I am seeing the following set of coordinates, and I was wondering what kind of system is this? 48569.800mE, 706602.032mN
0
votes
1answer
11 views

Query to find all lines connected to other

I have problem with one spatial (Oracle) query. Simplified overview of the problem is: I have two tables: CREATE TABLE thin_lines ( id NUMBER PRIMARY KEY, geom SDO_GEOMETRY), color ...
0
votes
0answers
9 views

Layer just for annotations

Im relatively new to QGIS and would like to know whether or not I can save my form annotations to a layer so I can turn them on or off.
0
votes
1answer
10 views

Unable to access GeoServer from another computer in the same domain

I installed GeoServer 2.5.2, GeoNetwork 2.10.3 and Tomcat 7 on my Windows 7 computer {MyComputer} in our company's network. Now I would like to access GeoServer, GeoNetwork and Tomcat from other ...
0
votes
0answers
11 views

Working with Fulcrum data in QGIS

I have been sent some shapefiles, gathered using the Fulcrum app. However, when I load them into my project on QGIS 2.2, they wont display. They will display if I go to 'Zoom to Layer Extent" but ...
0
votes
0answers
8 views

How can I associate a consistent polygon area with a set of attributes using a topology?

Consider the following topology. SELECT CreateTopology('topotestschema', 0, 0.01); CREATE TABLE pregen.topotest (id SERIAL PRIMARY KEY, data TEXT); SELECT AddTopoGeometryColumn('topotestschema', ...
0
votes
1answer
27 views

How to convert LAS file to ASCII for DSM in SAGA GIS?

I want to count trees in SAGA GIS and when I try to follow the steps in dominoc925.blogspot.com, there was no problem with asci file (i have converted las file (dem)) but there was a problem with dsm ...
0
votes
1answer
19 views

Overwrite option on a standalone ZonalStatisticsAsTable using ArcPy

How can I code an "overwrite option" on a standalone ZonalStatisticsAsTable using ArcPy? I don't see any overwrite option from a Esri example. # Execute ZonalStatisticsAsTable outZSaT = ...
2
votes
1answer
25 views

Comparing data from two different time periods

I am trying to compare DWI frequency over the period of 3 years. I want to create 3 maps, with each one showing where DWI's occurred during 2011, 2012, and 2013. I have the point data for this, but I ...
2
votes
1answer
25 views

Finding the shortest network distance from A to C via the closest B in ArcGIS?

I have an intern wanting to model the network distance from origin (A) to destination (C) via the closest detour (B). There are approximately 1,000 origin, 200 destination, and 500 detour points. I ...
0
votes
1answer
15 views

Restricting ArcGIS network analysis to finding origins/destinations with common ID?

I have two point feature classes, patients and physicians. The patient feature class has a record of which physician each patient visits (a one to one relationship). I would like to run an OD Cost ...
1
vote
1answer
32 views

I need to find the longest string of ALL cells in a table

I need to find the longest string of ALL cells in a table. Unfortunately, the table can have varying number of fields each time. This need to be a generic function. Any leads please?
1
vote
1answer
17 views

Combining edits from multiple Geodatabases into a Master Geodatabase

Is there a way to automate combining edits from multiple, single project geodatabases into a master geodatabase based off the date the edits were made without creating duplicated of the same project ...
2
votes
1answer
30 views

Linear referenced data driven pages

I am trying to create a form of data driven page that incorporates linear referencing very similar to the "Linear referencing scenarios" example: I have a map that I will display on each page that ...
1
vote
0answers
14 views

Any solution to mosaic Modis MOD13Q1 using batch file?

I have Modis MOD13Q1 product for Pakistan, four tiles cover my complete area, I have data consist on 14 years, after every 16 days interval. I want to mosaic them using batch file which will be ...
0
votes
0answers
7 views

Working with different source WMS data

I have a geoserver and WMS services on it. For example my water valve layer is point data and published from geoserver. (I am using postgis to saving data.) An external WMS service publishes polygon ...
0
votes
0answers
27 views

Cause of Error 000308: Invalid Field Type when batch running ArcPy script?

This is my first post on this site. I am using ArcGIS 10.2 for Desktop. I wrote a simple script in the form of a python toolbox to calculate the speed of travel between consecutive entries of a ...
2
votes
0answers
16 views

Determine PostGIS geography polygon orientation

How can you determine the orientation of a PostGIS geography polygon? I'm looking/hoping for a function that would tell me which side is the interior (left or right) as you traverse the vertices of ...
1
vote
0answers
15 views

Query PostGIS database without creating primary key [on hold]

I'm trying to query PostGIS database from QGIS DB Manager: select row_number() OVER(ORDER BY idx DESC) as id, p.*, * from table_1 join table_2 as p on "name" = "name" where row_number() OVER(ORDER ...
0
votes
4answers
23 views

How to split polygons at intersections in ArcGIS 9.3?

I have two polygon layers. I'd like to split the features in one based on where they intersect the other layer. I've tried using the Clip tool, but there is no option to simply split the features -- ...
0
votes
1answer
21 views

Combining multiple year yield maps in ArcGIS 10.1

Trying to find the simplest way to combine multiple year of crops yield data into one file and get the average yield. The files are point files from a yield monitor.
1
vote
1answer
32 views

QGIS 2.4.0 How to display only selected features on map?

Not sure if this option ever existed, but the new QGIS version hides a lot of things somewhere else and this seems so simple that I'm kind of convinced it was possible to do this before. I have quite ...
0
votes
0answers
21 views

ogr2ogr does NOT save “styles”, say “color”, information; how do I get around it? [on hold]

I'm using ogr2ogr to convert KML to GeoJSON and I'd like to extract style information along with the data. The bash script I am using is: filekml="/tmp/poly.kml" filegeojson="/tmp/poly.geojson" ...
1
vote
0answers
20 views

FWTools Python ImportError: DLL load failed:parameter is incorrect

please can any one help me to solve this issue.Please find the attached snapshot. for your reference i am working in windows 7 professional,service pack1,32 bits laptop
0
votes
0answers
6 views

OpenLayers.Layer.Vector - addFeatures() weird behaviour

I have noticed that the addFeatures() of the OpenLayers.Layer.Vector add a lot of features and not just the feature that we pass to the function: var vectorLayer = new ...
2
votes
1answer
16 views

“Window” definition in Google Maps JavaScript API v3

I am trying to use Google Maps Javascript API in a java application through Nashorn (basically lets you run javascript in java). Anyway when I load the API I get an error that "window" is not defined ...
2
votes
2answers
27 views

shell script ogr2ogr export

I'm writing a simple script to export postgis data to geojson. The ogr2ogr command works well, but I'm having problems when I'm passing the parameters. #!/bin/bash echo 'enter country code' read ...
1
vote
2answers
37 views

How to skip over errors created by cursors running through empty tables?

I am trying to automate the creation of many different feature layers were their content is created by a cursor. Sometimes during the automation, a feature layer may be empty, this is okay, but as the ...
2
votes
0answers
13 views

ArcGIS Publisher PMF Version Compatibility

Does anyone know of version compatibility issues of creating a PMF? Or links to that documentation? I have not seen anything from Esri. I have asked Esri Support, and will update with their response. ...
3
votes
0answers
29 views

PostGIS - Interpolate point between contours

Using PostGIS, what is the best method to interpolate the z value for points (the orange dot in the image below) located between each contour layer (blue lines and red lines in the image below)? So ...
0
votes
0answers
18 views

Pan sharpen Landsat 8 using Grass 7

I have followed this great tutorial on pan sharpening using Grass GIS 7 (I'm using beta 3). Everything in the tutorial seemed to have worked, but my final output is not as expected (pictured below). ...
1
vote
2answers
20 views

Import error:No module named _gdal

I have installed python 2.5.1 and FWTools2.4.7 in my laptop(Windows 7) when i run my pythonscript in FWTools i get following error Import error:No module named _gdal can any one suggest how to solve ...
3
votes
0answers
30 views

Recommendations for creating contour map from depth points

I am trying to put together a safe routes map for a local lake. I have an old paper map that has a grid of various depths as points. I would like to draw contour lines through these points and create ...
0
votes
0answers
9 views

Trouble Using jQuery UI Range Slider with Cartodb

I am trying to use a jQuery UI range slider to create a filter the markers displayed on my map - similar to this post office example. The problem I am having is that on load, sometimes I get the ...
0
votes
0answers
9 views

Aggregating rasters with GDAL

I have a set of files that have been mosaiced into a global VRT in a particular projection and resolution. However, I have a need to report statistics on a (say) one degree grid, where the reported ...
2
votes
1answer
41 views

How do I rename rasters in an mxd by using my csv?

I have the following data in a csv: RasterName First name Raster 1 Aaron Raster 1 Paul Raster 2 Bryan Raster 3 Cranston Raster 3 Vince I have added these ...
1
vote
1answer
28 views

Join/append multiple, identical polygon layers into a single layer whilst retaining all attributes?

I have run some analysis (zonalstats) on different raster layers using the same analysis polygons. I want to concatenate all these different layers together, i.e. retain a single polygon and have a ...
2
votes
1answer
28 views

Trying to install QGIS - missing 1.11 GDAL

I just spent the last n hours working on this, and still haven't gotten anywhere, so I'll throw it to the group. I see that other people have asked about this here and here, and I'd be happy to take ...
2
votes
1answer
34 views

<#> doesn't give a useful distance

I'm new to postgresql/postgis and trying to measure a distance. So st_distance() may be the most accurate, it's the slowest too (as I've read). I read that one can use geometric (instead of ...
1
vote
1answer
20 views

MrSid layer not showing up using GeoServer 2.5.2

I am using GeoServer 2.5.2 on windows. It is running as a service. I followed all the steps to add the MrSID support to geoserver. Now I have the option to select MrSID Raster Data Source. I select ...
2
votes
2answers
34 views

Buffer multiple roads to find points within and compare?

What I am trying to do is buffer a main st and a side street and get all of the points that intersect that buffer, however they need to be mutually exclusive. In the example below, my results would ...
0
votes
1answer
17 views

Issue with gdal getprojection and setprojection returning different information

I am using Landsat imagery from the USGS. Those who use them may know that the projection attribute is wrong (everything is in the Northern hemisphere). I have a script to process tar.gz files and ...
2
votes
0answers
11 views

Geometry Column in hadoop Hcat

Is there a way to add a geometry column in hadoop? Please give me some getting-started tutorial for geoprocessing in hadoop. Like, I have a database which have point values and if I take a random ...
2
votes
2answers
100 views

ArcGIS: Create polygon using file containing point coordinates

I have a text file containing the projected coordinates of the points that define a single polygon. The X, Y coordinates are separated by Tab Is there a tool in ArcGIS similar to "Add X,Y Data" in ...

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