0
votes
0answers
3 views

How to create a new shape file from jts geometries?

What I use: Java 1.7, JTS 1.13, geotools.api 14 What I have finished: Creating correct JTS geometries from OSM relations, ways and nodes. What I want to achieve: Create a csv file which contains the ...
0
votes
0answers
3 views

Snapping Manager Snapped Layer

ım using esri js api 3.12 I want to snap another layers and find snappedl layer's geometry. How can ı find.? var deferred = _root.map.snappingManager.getSnappingPoint(_root.map._map.extent); ...
0
votes
0answers
4 views

strange raster calculator behavior in QGIS

I used to work with qgis 2.8.1 in Lubuntu and in windows7. Each time I try to multiplicate a map for a number comprise between 0 and 1 (i.e. 0.1) I get a good results on windows OS, but I get a map ...
0
votes
0answers
6 views

Is it possible to add raster file by clicking at ArcGIS's attribute table?

I have a shapefile which contains raster contours. Its purpose is fast searching of raster data. Attribute table have fields with file names and I know the path to raster file. Is it possible to ...
0
votes
0answers
2 views

QGIS Crashing on android Tab 3

I have installed QGIS on my Samsung Tab 3 Neo (SM-T111)(android 4.2.2) from Google Playstore.It Installed with Ministro Qit & library files. It is opening with QGIS 2.8 (Wien) Logo but closing ...
0
votes
0answers
4 views

OpenStreetMap (OSM) data is misregistered upon download, in just one area?

I have a satellite image over the area of Forez, France. I checked that the landmarks on the corner points coincide with the landmarks of Google Maps at the same coordinates, so the image is not ...
0
votes
0answers
10 views

How to change features to have unique symbology color? [duplicate]

Say I have many features which need to have unique symbology color, how can I do this in ArcGIS 10.1. Possible using Python script? or Just simple tool in ArcToolBox.
0
votes
0answers
5 views

Counting number of polygon points in shapefile using Geopandas?

I have a shapefile that I have loaded as a geopandas dataframe, and it has a geometry column containing polygons and multipolygons. I have no idea how to operate on this column, though. For example, ...
1
vote
0answers
11 views

Exporting QGIS styles to SLD for GeoServer?

I´m starting to dive into sld creation for Geoserver 2.7.1 Therefore I´ve also looked at Qgis 2.8.2 as it can export styles to SLD. Where I´m clueless is the big amount of used ...
0
votes
0answers
7 views

Railroad mile post downloadable data

Searching for a way to download railroad mile post data from http://fragis.frasafety.net/GISFRASafety/ It appears the site has no way of obtaining their mile post data but it should be available ...
0
votes
0answers
3 views

Zonal computations: getting very different values for polygons pixel counts using GDAL versus rasterstats

I'm computing some zonal statistics, and was comparing the results obtained using the GDAL cookbook example code here with the rasterstats zonal_stats function. I've found that the GDAL cookbook code ...
1
vote
0answers
9 views

Multi Language support for QGIS python plugin

Is there any method for python plugin in QGIS 2.8 to support multiple languages.(including .ui files that is call from this python).Please anyone can help i am new to this environment
0
votes
0answers
6 views

OpenLayers doesn't display US Census-based GeoJSON Layer

I'm getting started with OpenLayers and all was going well until I tried to use my own GeoJSON file. I started with the Cartographic Boundary Shapefiles - Counties from the Census website, loaded it ...
0
votes
1answer
14 views

Cannot open shapefiles in ArcGIS Desktop 10.3

I have shapefiles and mxds that were working fine in 10.1. I then downloaded version 10.3 ArcGIS Desktop Advanced. Now when I open the mxd, all of the data links are broken. when I open properties ...
1
vote
0answers
19 views

Use Gdal from Python IDE

I am just starting to experiment with writing python scripts. I have been using QGIS and the Osgeo4w shell for sometime now. I would like to be able to call Gdal from the python IDE i have installed ...
0
votes
1answer
8 views

How to pass a line feature as a GPFeatureRecordSetLayer parameter to a geoprocessing service using the JSAPI?

Can some one tell me whats wrong here. The geoprocessing job always fails and i don't see much info in firebug to debug. This is my code to generate the feature set. var inputFeature = { ...
1
vote
0answers
7 views

Determine XY offset in meters between two lat/long points (EPSG:4326), and accurately recreating point locations using XY offset

I have two tables in EPSG:4326, one for home locations and one for site locations. I need to be able to generate the XY offset in meters between the home location, and the site locations. I then need ...
1
vote
0answers
20 views

Are there any Python scripts are available for Hydrology to compute watershed Basin from csv file?

Let's say I have surface data available in CSV format (x,y,z). In order to create a watershed basin from surface data, there are some intermediate steps we need to follow. ASCII to surface raster ...
0
votes
0answers
9 views

Simple ST_Transform operations always failing in PostGIS? [on hold]

I am trying to SRID 4612 (JGD2000) data to SRID 4326 (WGS84) or SRID 2451 (Japan Plane Rectangular CS IX) on the latest version of PostGIS. But always getting errors as the following. Am I doing ...
0
votes
2answers
21 views

Iterating list returned by arcpy.ListFeatureClasses() gives error 'NoneType' object is not iterable?

I have the following code, where i write from a list of featureclasses the fisrt row of 2 specific fields to a text file. But when i run it either erases all the previous stored data from text or ...
1
vote
0answers
6 views

Showing top 5 through pie charts/graphs using ArcGIS for Desktop?

With ArcGIS, I have to display pie graphs for each community district. These pie graphs must show the top 5 cars for each district. I already have the spread sheet and the shapefile, where I can join ...
0
votes
0answers
6 views

Where can I find world map shapefiles/GEOJSONs/KMLs for 1950-2015?

I'm looking for world maps showing countries from 1950-2015. Are there shapefiles, KMLs or GEOJSON files of these?
1
vote
1answer
12 views

ArcGIS resampling rasters by maximum pixel value?

I need to resample a binary image of linear features like roads, rivers to a coarser resolution, conceptually combining multiple pixels into a single one. 1 indicates presence of the linear feature, ...
2
votes
0answers
17 views

Interpreting results of QGIS intepolation and Heat map from point shapefile

I have taken a step interpolation and heat map of the data point shapefile (building Centroid) with QGIS ver-2.8.1, as shown below. My question are: What is the difference of the two methods? How ...
0
votes
1answer
8 views

Using Plat Plotter - Calculate Curve Table feature given an arc and radius

Plat Plotter has a Calculate Curve Table feature that generates a sequence of points for use in drawing plot lines. thence South 13°0'00" West 201.05 feet to the beginning of a tangent 180.00 foot ...
2
votes
0answers
15 views

Does gdal_calc only support 26 input raster files at a time?

In gdal_calc.py, input files are specified with letters A-Z. Here are two files, input.tif and input2.tif, being averaged into result.tif: gdal_calc.py -A input.tif -B input2.tif ...
0
votes
0answers
12 views

Speeding up PostGIS ST_AsGeoJSON

I am writing a query that would give me the geojson element contains the outline of a US State along with some additional information. The problem I am running into is the function ST_AsGeoJSON from ...
0
votes
0answers
6 views

Uploading Geocode Service Definition Continues To Fail

I am not sure why this is happening, I am able to stage a Geocode Service, but when I try to upload it to the server it continues to fail. I am able to upload regular MXD Mapping Services. Below is ...
0
votes
0answers
7 views

How to use a PostGIS sequence in QGIS editing session?

I can't seem to get the sequence on my PostGIS table to increment to NEXTVAL in a QGIS editing session. My PostGIS table is defined as: CREATE TABLE qgis_topology_editing_test ( geom ...
0
votes
0answers
2 views

ENVI 5.2.1 How to do an Accuracy Assessment using test data from a shapefile

ENVI 5.2.1. From a .tiff image (4 bands) I created a Supervised Classification Maximum Likelihood .dat file. Now I want to perform an Accuracy Assessment using test data from a shapefile. I've tried ...
0
votes
0answers
14 views

Getting the max value from where polygons intersect in MapInfo

I am trying to do an intersect query on two polygon layers in MapInfo. One is a buildings layer and the other are 2d mesh triangles. I want to get the max depth from any of the triangles that ...
0
votes
1answer
16 views

How to connect SQL SSMS to ArcGIS file geodatabase

I've found this reference article talking about how to query a file geodatabase using SQL. ...
0
votes
0answers
31 views

How to convert X and Y coordinates to longitude and latitude?

I have looked at every single one of the answers about this question and none of them seem to work. I have downloaded a shapefile with points that represent specific buildings into QGIS. I would like ...
1
vote
1answer
15 views

Python script to accumulate flow volumes for a pipeline geometric network

I have a point wells layer and a polyline pipeline layer. The wells are snapped to the end of the pipeline segments. The wells layer has weekly updated flow volumes and I'd like to find a way to ...
0
votes
1answer
12 views

Has anyone been able to install a GPS device 'Explorist Magellan 210' (Old, may be 2005) on windows 8?

Windows is unable to reckognize my device. It's 10 years old but fully functionnal. I would at least make it work as an external disk. All suggestions are welcome.
0
votes
0answers
7 views

Associating 2 point files

I have two point files; the points in one file are in a smaller geographic area than the larger, but the points do not share locations. I want to create another file associating nearest points, ...
2
votes
1answer
25 views

Incorporating terrain data to predict canopy cover using randomForest in R

This is a subjective question. Thank you bearing with me. I have a 5.8 m resolution satellite image (LISS IV by IRS-P6, in bands 4, 3 and 2) of a densely forested region in the Eastern Himalayas. My ...
0
votes
0answers
5 views

Mapbox Geocoding and Markers

I recently added Mapbox's Geocoder Control and it works wonderfully. I was wondering if anyone could tell me how I could have a marker appear at the location of the address that was searched for? ...
0
votes
0answers
7 views

How to combine the content of several mapsets into one new mapset in GRASS.?

I have some mapsets and i want to assemble them into one new mapset and have everything into it. How do i do it?
-1
votes
0answers
25 views

What you think about AMD A10-5745 & 12GB RAM? [on hold]

I've found a cheap laptop with AMD A10-5745M processor and 12GB of RAM. I work mostly with ArcGIS (with large datasets, not 3D) and I do little programming, but I have never had an AMD processor.... I ...
0
votes
0answers
11 views

Auditing a Table's Changes Using Oracle and SQL Developer [on hold]

I need to create a table that audits the changes to a table which only has 2 columns (name and system) I need to keep track of transaction date, user performing the transaction, transaction type, ...
0
votes
1answer
10 views

Not all polygons removed when cutting from vector layer in QGIS

I have created ten polygons representing lakes on a vector layer, and I am trying to cut them from an imported and re-projected vector layer of administrative districts. When I use the 'Cut with ...
0
votes
0answers
10 views

Calculating Odd and Even side of road using PyQGIS and GRASS

I'm trying to programmatically and automatically assign odd and even sides of a road to number homes using QGIS and GRASS. I noticed this other post, which gives a solution using PostGIS and I have ...
0
votes
0answers
10 views

How to set a src manually in OpenLayer 3?

I'd like to know how to set manually a src for add one or more icon. I've been finding a method in OpenLayer 3 to set it but, without sucess. For example, time ago I wrote the following code to set ...
0
votes
0answers
5 views

libst_raster_pg.dll for PostgreSQL 9.2

I need to store my raster in an enterprise geodatabase with st_raster data type. Copying libst_raster_pg.dll from C:\Program Files (x86)\ArcGIS\Desktop10.3\DatabaseSupport\PostgreSQL\9.2\Windows64 ...
0
votes
1answer
16 views

Multiple GeoJSON Layers

I have a leaflet map of the US and I would like to toggle between zip codes and county shapes. There seems to be no tutorials on how to achieve this in the documentation or an other forums I'lve look ...
0
votes
0answers
6 views

NetCDF calculations

I have a raster of monthly average temperatures for the state of TX (represented as a grid) for a 50-yr period in the form of a netcdf file. I can display the temperatures but am not sure how to do ...
5
votes
1answer
45 views

Clipping features depending upon percent coverage by other features

I have a shapefile composed of several thousand square polygons of equal size, arranged in a grid. I have another shapefile with a few dozen circles. The squares are about 1/10th the size of the ...
1
vote
0answers
18 views

Spread overlapping points with similar but not identical coordinates

I've been looking for a solution for my problem for quite a while, but never found the answer.I have a lot of data point which are very close to each other, a lot of them have the same coordinates. ...
0
votes
1answer
46 views

Convert x y coordinates to polyline shapefile

I am trying to process output from a model that simulates the movement of particles in groundwater. The program outputs the particle ID number, the x and y coordinates, and the time at which the ...

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