An object-oriented cross-platform programming language developed by Sun Microsystems.

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429 views

Create shapefile based on geojson data with geotools (Java)

I'm using Geotools 14.0 for Java and I'm trying to generate shapefile based on data from GeoJSON. Here is my code: try { String url = "geojson.json"; File geojson = new File(url); ...
2
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1answer
96 views

Small GeoTiff of the world very slow when zoomed in to city level

I'm new to GeoTools and as a start I'm trying to display a small GeoTiff file on a map . The GeoTiff files I'm using are under 10MB (for example a 1MB file at 720x360 pixels) and covers the entire ...
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0answers
37 views

Geoserver: Problem with default styles

Somehow, many of the layers in Geoserver got misconfigured. I can not say how this exactly happend, since this also applies to layers I have not even touched in a while. When I try to query the ...
2
votes
2answers
89 views

How to use IDatabaseConnectionInfo3 Interface ArcObjects!

I try to retrive the connected users from an entreprise geodatabase using ArcObjects . first I tried to cast My workspace to IDatabaseConnectionInfo3 but it throws ClassCastException ...
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0answers
19 views

Set Proxy GeoServer Manager API 1.5.2

I'm new to geoserver manager api, and wanted to know how to set the proxy to use the GeoServerRESTPublisher and GeoServerRESTPublisher classes because my geoserver is remote and my internet ...
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0answers
104 views

Adding rasters with GeoTools

I'm using org.geotools.process.raster.AddCoveragesProcess class, to add two raster's with same resolution and buonding box. I get the following exception java.lang.IllegalArgumentException: Range ...
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1answer
63 views

How to order points on a road linestring to follow the road

So I'm using a osm2pgsql schema. When I get a road, the points in the linestring don't have an order, so when I try to draw the road, it won't follow the road but will be a bunch of lines. Do I have ...
2
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1answer
119 views

UnsatisfiedLinkError caused by org.gdal.ogr.ogrJNI.GetDriverCount()

I am developing in Java on Windows 7 with Eclipse (Luna). I am using gdal for some ogr processes and running the application from eclipse is fine, but running from command line on the same machine ...
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0answers
103 views

How add two coverages with different bounding-box and different resolution using geotools

I'm developing a Java application with some spatial analysis operations. One of the operations is to add two coverages. But how can I add two coverages with different bounding-box and different ...
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1answer
194 views

Calculating intersection between lines with GeoTools (java)

I have ArratList<Segment> (N segments - array size is N) when: public class Segment { Node vertex_1; Node vertex_2; } public class Node { double latitude; double longitude; } ...
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0answers
46 views

Create compressed GeoTiff in Java

I've got a typical two-dimensional array in Java with values which represent a grid. Rows, columns, coordinate system (latlon), origin and cell size are known. I am able to export this data as ASCII ...
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285 views

draw a map from encoded polylines

I'm using the google maps web services service to find a route. From the json response I parse it encoded polylines and store it on coordinates String. private String parseJson(String s){ String ...
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1answer
258 views

PermGenSpace error in Tomcat with geonetwork 3.0

I'm running a geonetwork 3.0.1 instance on tomcat7. Regularly, i.e. every few actions of my only user, my tomcat runs into a PermGenSpace error. This especially occurs during harvesting of other ...
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0answers
237 views

Use postgis functions in restful web service java

I am trying to access Postgis functions in Restful web service JAVA. I am using netbeans 8.0.2, Glass Fish, J2EE 7 to create web service, PostGres 9.2 and postgis 2.1.1. Connection to postgres is ...
1
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1answer
92 views

How to pass custom data in GeoJSON point?

I have an application, which creates a GeoJSON stream on the server, which is then rendered on the client (using CesiumJS). GeoJSON is created using GeoTools. I want to pass some custom data to the ...
3
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0answers
67 views

Geoserver: Exception when importing KML

I have a KML that I would like to import into Geoserver. The KML originates from a Geoserver WFS getFeature Request itself and looks like this: <?xml version="1.0" encoding="UTF-8" standalone="yes"...
5
votes
1answer
740 views

Algorithm to find N nearest points to point?

I'm trying to build a mobile app, and find the x number of points closest to a users location that satisfy certain conditions that the user chooses on the front end. My current solution is to ...
1
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1answer
145 views

How to select from geometry column in postgresql?

I've got a table which it has a geometry column filed by some point (ex. "POINT Z (116.309627 39.991285 148)"). now I want to select point's id from the table. I wrote follow sql Code but I force an ...
2
votes
1answer
230 views

How to query a JTS QuadTree using a query envelope with holes

Hi I have a Java Topology Suite QuadTree containing Points, now I'm trying to query the QuadTree with a polygon that contains a hole. Here's how I create the polygon. //Method will create a ...
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0answers
23 views

Can we integrate QGis with Java? [duplicate]

Inegrateion of java with Qgis and its extensions? In case, If integration is possible can we use multi-threading qgis and java?
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1answer
229 views

Java library to compare shape files

I have county shape file & school district shape file. Once each school district file is overlay on county shape file I would like to know how much % of area of school district file covered by ...
3
votes
1answer
96 views

Whitebox GAT not starting under Windows 10 - General JAVA or Whitebox problem?

I am currently running the DEM preprocessing on a relatively large (50000 km2 at 30 m resolution) and steep DEM. The objective is to extract the stream network and some morphologic attributes (e.g., ...
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0answers
49 views

Creating shapefiles using java?

I have a running java service which gives me a count corresponding to every 5-digit zip code in Newyork state. Now i want to feed this input to QGIS programatically so that the color of every polygon (...
3
votes
1answer
94 views

Add Features from KML to a GeoPackage using GeoTools

Using GeoTools v13.2 I need to add features to a GeoPackage from KML. So far I can get the features in a SimpleFeatureCollection which can be added to the GeoPackage: public void ...
0
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1answer
44 views

Implementing WaterML2 output in my web service

I'm trying to implement WaterML2 output for my sensor network webservice. Currently I report sensor data where the data includes IDs for each sensor, time of sensor readings, units and, optionally, ...
1
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2answers
320 views

library to create static maps (an image) with custom map features

Do you know if there is a small library (preferably in python or java) around that allows the creation of static map. Something where you can specific the URL of your TMS server, width and height in ...
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0answers
58 views

How to transform ENVI Hdr to PNG using GDAL?

I am trying to transform a ENVI Hdr image into a PNG (or other RGB image format) in order to visualize this image. I am selecting the three default bands (55, 41, and 12). I am using GDAL by using ...
3
votes
2answers
134 views

Testing if Geometry is convex using JTS?

I'm using the Java Topology Suite and I'd like to efficiently check if a Geometry (a Polygon in fact) is convex or not. I currently do if (geometry.convexHull().equals(geometry)) but obivously that ...
0
votes
1answer
157 views

What is the best possible configuration for opensource GIS web application to generate a war file?

I have developed a GIS web application using OpenGeoSuite for Electricity Asset Management System. It uses Geoserver, PostGIS/PostgreSQL, PHP, GeoExplorer for normal functioning. However, I need to ...
0
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1answer
288 views

Is Geoserver mandatory for developing GIS web application in Java using Ol4JSF in NetBeans IDE?

I am developing a GIS web application which involves querying and creating map layers dynamically (like page getting refreshed for every 5 minutes) and also static querying etc... This application ...
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0answers
70 views

How to get speed and acceleration from trajectory data?

I am using Java and netbeans as a IDE to develop a project. I have got some trajectory data by applying a spatial query. My question is, how can I get speed and acceleration for these trajectory data? ...
0
votes
1answer
294 views

How do you calculate latitude and longitude of a point in a static map?

Background: I have generated a static map (map.png) of a particular city using mapnik and osm data of the highest zoom level. I am able to zoom in and zoom out successfully using my Java program. It ...
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votes
2answers
348 views

How to calculate the distance between a line and a point (using lat/lon coordinates)

In my Android app, I need to calculate the distance from a point (the device's location, which is a lat/lon coordinate) to a line (defined by two lat/lon coordinates), and get the result in meters. I'...
1
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1answer
96 views

GeoTools modify a FeatureType to change its name

I have a featureCollection and I want to save it into PostGIS dataStore. So I'm going to create a database table by geotools. I want to name my table "ali". But I can't rename the schema! DataStore ...
0
votes
1answer
282 views

Using Leaflet: How do I get it to display one popup based on a condition?

Using Leaflet: How do I get it to display one popup based on a condition. See below. basemap_0.addTo(map); var layerOrder=new Array(); function pop_thunder(feature, layer) { ...
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0answers
35 views

Clear usb gps logger with nmea or sirf

I am trying to clear a Canmore gps logger with hex commands but I dont understand how to do this, I am using java but I am also using other programs like RealityTerminal, but I dont understand how the ...
3
votes
3answers
441 views

Calculate distance with JTS

I'm trying to get the distance between two points with JTS. The problem is that this function with JTS new Coordinate(Lon1,Lat1).distance(new Coordinate(Lon2,Lat2)) Is giving a different result ...
2
votes
1answer
555 views

Query all Object within n kilometer Radius with Hibernate Spatial?

I use hibernate spatial attach a geolocation to a car. My card domain class looks like this: import com.vividsolutions.jts.geom.Point class Card { String name Point location } My program is ...
1
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2answers
1k views

GeoServer failed to start on Tomcat 8.0.24

I am trying to get GeoServer up and running on an Amazon EC2 instance but it does not work. I am using Java 8 (Oracle) and Tomcat 8.0.24. The thing is I have got the same stack up and running on a ...
0
votes
1answer
100 views

How can I determine elevation levels for a region in Java?

I need to find out the elevation levels for a certain region (center is located at 132.159633, 43.350116). For this purpose I went to the Elevation finder and downloaded there the relevant part of ...
2
votes
1answer
45 views

JAVA GIS create shapefile from FeatureLayer

The title kind of saids it all. I am attempting to export a featurelayer to a shapefile and am not having any luck finding a library which includes this functionality or relevant code to see where to ...
1
vote
2answers
715 views

How to programmatically import a Shapefile into Oracle DB using Java?

What's the best approach to import a user uploaded shapefile into an Oracle DB? The dbf, shx and shp files of the Shapefile come in a ZIP Archive. Currently, we unzip programatically and then parse ...
0
votes
1answer
83 views

GeoTools decode FeatureType

Encode: 1- A way of encoding a FeatureType is : SimpleFeatureType TYPE = DataUtilities.createType("Location", "geom:Point,name:String"); GML encode = new GML(Version.GML2); encode.setBaseURL(new ...
3
votes
1answer
152 views

How do I produce a GeoJSON with 1 point at a certain lon/lat?

I need to create a GeoJSON string, which contains exactly one point at lon/lat 132.159633, 43.350116. I'm trying to use GeoTools 12-RC1 for that. Let's say I have following method, which is supposed ...
1
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0answers
83 views

Making feature layer selectable in ArcObjects Java without getting AutomationException 0x80004005?

I am currently making a FeatureLayer from a resultset. The feature layer seems to work properly and will display on the map. However when I choose "select all" on my feature layer I get the ...
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0answers
193 views

How can I manage geoserver requests and my page requests in web.xml file? [closed]

I'm developing an GIS application. I need wfs and wms protocol in my application. I want to use Web Feature Module, Web Map Module and Geoserver Web Modules of Geoserver's modules. For using these ...
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1answer
320 views

How to do a coordinate transformation with EPSG codes in CTS?

Let's say I want to convert the following WGS84 (EPSG:4326) coordinate to UTM32N (EPSG:25832): 54.321, 9.876 Is there any tool to reproject x,y coordinates, apart from Proj4? links to the CTS wiki. ...
0
votes
1answer
736 views

What simple and light Java library to use for WGS84 to UTM conversion?

Geotools and Geotoolkit are huge and complicated. CTS (1.3.3 from Maven) failed on me by not even being able to run its own test example (slightly modified https://github.com/orbisgis/cts/blob/master/...
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0answers
40 views

How do I add my code to Geoserver?

I get geoserver 2.8-SNAPSHOT code from github. I delete some madules of it. Geoserver developed with Spring framework, Now I want to add my Controllers to this project. Some of My controllers have ...
2
votes
2answers
136 views

Can I use “Web Map Service Module” and “Web Feature Service Module” of Geoserver in my project?

I'm developing a GIS application with java Spring Framework and GeoTools library. I have some vector layer. I want to get this layers with wms and wfs protocols. I've downloaded geoserver code. It ...