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

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3
votes
0answers
54 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" ...
1
vote
1answer
107 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
185 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 ...
0
votes
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?
0
votes
1answer
77 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 ...
0
votes
1answer
170 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
86 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 ...
1
vote
0answers
47 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 ...
2
votes
1answer
97 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
0answers
51 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 ...
4
votes
7answers
7k views

How to get started on web GIS development with Java? [closed]

I am very new for GIS, I know java web development. I want to develop a GIS web application in Struts, can you suggest me how to start? My requirement are as - Any API/Tool should be open source. ...
2
votes
2answers
238 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. ...
0
votes
1answer
123 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
votes
1answer
253 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 ...
10
votes
6answers
1k views

Java, GIS knowledge…What next?

I know programming in Java and I am familiar with GIS concepts as well. I do GIS programming using javascript and PHP. I want to now do it using Java. How should I go about it? PLease let me know ...
1
vote
0answers
56 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
243 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 ...
1
vote
1answer
75 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 ...
3
votes
3answers
276 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 ...
0
votes
0answers
34 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 ...
0
votes
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
157 views

Extending ArcGIS Desktop using Python vs Visual Basic vs Java? [closed]

I have to extend the features of ArcGIS. I've been asked to create a model written in Python that can run out of ArcGIS 10. This model will have a simple user interface where the user can drag/drop ...
0
votes
1answer
105 views

Points contained in envelopes that cross date-line - java

I'm using the ESRI Geometry Java API https://github.com/Esri/geometry-api-java I want to construct an envelope and see if it contains certain points. It's possible the envelope crosses the ...
2
votes
3answers
7k views

Displaying Google Maps and OpenStreetMap map in Java?

Is there any Java API that is like OpenLayers ? I would like to display google Maps and Openlayers Maps in a java application
2
votes
1answer
40 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 ...
0
votes
1answer
67 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
724 views

Getting DataStore Problem with Geotools

I recently found an issue with Geotools and getting the datastore for a shapefile. If I try: FileDataStore dataStore = FileDataStoreFinder.getDataStore(file); -or- Map connect = new HashMap(); ...
1
vote
0answers
72 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 ...
1
vote
2answers
604 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
0answers
41 views

How can I use geoserver's user management for my application

I'm developing a gis application with java. My layers are in geoserver. Layers have different permissions, some layers have public permissions and some of them have private permissions. for private ...
0
votes
0answers
131 views

Establishing direct connection to ESRI geodatabase on Oracle hangs while not in debug mode

Recently I have been trying to establish direct connection to oracle geodatabase using Java API. The problem is, that when I execute the code, the connection works fine only in debug mode when I ...
2
votes
3answers
503 views

From OSM to shape. Parsing problem

I'm working at OpenStreetMap project for android at the moment. I want to retrieve OSM data from my app(nodes, markers and paths) and convert it to shape file (.shp, .dbf and .shx). Later, I'll load ...
5
votes
2answers
697 views

What does it mean to QI and how is it done?

I'm new to Esri's Arc* interfaces, and trying to figure out how to register an existing table using the ArcObjects API. The following question answers this to some extent: Is there any way to write a ...
3
votes
1answer
123 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
vote
0answers
35 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 ...
0
votes
0answers
83 views

Gdal Polygonize Java

I tried to use the gdalPolygonize function within in java. What I did Installed gdal-111-1800-x64-core from the following link ...
1
vote
0answers
183 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 ...
0
votes
1answer
228 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
515 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 ...
0
votes
0answers
78 views

How to read/write a DGN file with java?

I want to read/write a DGN file with java code. Is it possible?
0
votes
0answers
155 views

Exception access violation while executing Java ArcObject application

I have developed an visual application using ArcObjects SDK for Java 10.2 which worked well until yesterday. Since, I'm facing a fatal error (full trace below) while I don't feel I have changed ...
1
vote
2answers
187 views

Using Geotools: How to convert these strange coordinates from a shapefile into regular lat and long?

I use this dataset from the European Union: http://www.eea.europa.eu/data-and-maps/data/administrative-land-accounting-units Opening the shapefile with Java' Geotools, I see coordinates like: ...
0
votes
0answers
37 views

Merging - Aggregation of Rasters

I'm a beginner in Java and a geomatics student. I'am using IntelliJ and I work in Java. I create two raster with the BufferedImage Java class. Raster1 Raster2 These images show for raster1 the ...
0
votes
0answers
51 views

How to access an ArcGIS Server secure service from java

I want to call an ArcGIS Server service through Java. The service is locked and only the publisher and administrator can access it. If I know the credentials, what sort of authentication should I ...
0
votes
1answer
3k views

How can I see specific location on java desktop application?

I want to see a desired lat/lon point on the google maps on my java desktop application. I made some search so I think google map API is something which I looking for. Am I right? and Is there any ...
1
vote
0answers
215 views

lat lon to ease-grid 2.0 using proj4j

I’d like to use PROJ4J to project wgs84 lat lons to the Equal-Area Scalable Earth (EASE) 2.0 Grid. It seems the EASE 2.0 grid uses the Behrmann projection which is just an Cylindrical equal-area ...
0
votes
0answers
18 views

How can I get back to the Feature that my Geometry is the geometry of?

Let's say I have some Feature and just got its Geometry out of it. Geometry geometry = feature.getGeometry(); Is there a way to get back to the "originating" feature if I did not have the variable ...
0
votes
1answer
97 views

Run the GUI of JTS 1.12

I've got an error in JSTS (JavaScript Topology Suite) library based on JTS (Java Topology Suite) v1.12 (r405). But there is no error in the last build of JTS on the same test case. So I want to check ...
2
votes
1answer
537 views

How to convert shp to csv

I am trying to convert my shape files to csv through a batch processing in Java using Geotools. The problem is I have more than 500 shape files (point features). The code is working fine for a small ...
2
votes
1answer
135 views

How save modified features in server side with java and geotools?

I'm developing a gis Application with java. I use Spring 4.0.1 and GeoTools-13-RC1 in server side and OpenLayers 2.13.1 in client side. In client side, I have a wfs layer and it is as follow: var ...