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

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4
votes
0answers
489 views

Hibernate Spatial - 'Invalid endian flag value encountered' Exception

I'm trying to run a simple query in Hibernate Spatial 4.0 on PostgreSQL 9.3. I have a number of objects in a table with latitude/longitude values, and I'm trying to query objects that fall within a ...
4
votes
0answers
125 views

What is the structure of Standard Interchange Format (SIF) used by spatial data providers?

What is the structure of Standard Interchange Format(SIF) used by navteq and other spatial data providers? Any documentation/sample files? Is there a SIF parser available in C/C++/Java/PHP ?
4
votes
0answers
642 views

How to sort a SimpleFeatureCollection using GeoTools?

I have a featurecollection: SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(dbFeatureType); SimpleFeatureCollection collection = FeatureCollections.newCollection(); while ...
3
votes
0answers
161 views

Memory issue inserting a large dataset in GDB with ArcObjects

I am using the ArcObjects API for Java to load a very large dataset in a File Geodatabase in one feature class. The whole dataset I have to load is composed of 200 datasets of 30k polygons, and I ...
3
votes
0answers
69 views

Adjacency matrix for polygons using Java

I am trying to create an adjacency matrix from a set of polygons. That is, I have a bunch of polygons and I want to identify which polygons have a common edge or "touch" each other. Once I find this ...
3
votes
0answers
186 views

Rendering performance

I am using ArcGis Java SDK for creating a map in my JavaFX application. I have a requirement to plot up to 500,000 graphics on graphics layer. When I do 100,000 graphics its performance is really bad. ...
3
votes
0answers
469 views

Convert land-based camera image pixel x,y to ground lat/long or x,y,z

I have a number of cameras at various known locations (x,y,z) and directions that are above ground about 20 feet pointed at different ground locations about 100 feet away from each camera, and whose ...
3
votes
0answers
304 views

Illegal argument exception while reading tiff image using GeoTools

I am working on a Java swings based GIS application to project my tiff image as maps . But each time I run my application I get Illegal argument: "semiMajorAxis=�" . The tiff images I have are working ...
3
votes
0answers
324 views

Renaming Columns in Geotools FeatureType

I am attempting to build a simple java program that loads shapefiles into a Postgis 2.0 database. Everything is working out great except that I would like to be able to modify the FeatureType in the ...
2
votes
0answers
16 views

No Exception Handling in GDAL/OGR java bindings: ogr.UseExceptions() has no effect

When a GDAL/OGR 2.0.1 swig/java operation encounters an error, the message is written to stderr but no exception is thrown within the application -allowing it to continue, which is highly ...
2
votes
0answers
35 views

What are the geotiff limitations of geotools?

I'm trying to process globcover, which is a .tif file of 374mb. Running the following code: File tiffFile = new File("C:\\Users\\CAA\\Desktop\\test.tif"); GeoTiffReader reader = new ...
2
votes
0answers
37 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" ...
2
votes
0answers
112 views

PostGIS: What is the difference between regular R-tree and R-tree on top of GiST?

I have built a spatial index structure that I am trying to compare with other existing spatial index structures. I have to either code (in Java) the same logic that PostGIS uses or find a java library ...
2
votes
0answers
82 views

Print two different maps object in one layout template in Arcgis javascript api

I'm trying to publish a print service that accepts two maps objects, sent by javascript and print them, I found PrintTask() wedjit, something like printTask.map=map, my goal is to try to send two map, ...
2
votes
0answers
228 views

Geotools wfs getFeature

I want to retrieve the feature Collection from a wfs server with the java library GeoTools. I tried this code, but unfortunately the program fails to execute. public class App { public static void ...
2
votes
0answers
72 views

inputing road network as nodes and arcs in java

I want to input a road network as nodes and arcs. Some of the nodes are intersections, others serve to describe the shape of the road. Road network should be modeled as an embedded graph consisting of ...
2
votes
0answers
988 views

Sqlite insert java.sql.SQLException: [SQLITE_ERROR] SQL error or missing database (no such column: SRID)

I'm trying to connect to two DBs and then copy tables by inserting rows from one table to another through java using JDBC. I'm using sqlite-jdbc-3.7.2.jar plugin.The setup is in Eclipse Luna. I'm ...
2
votes
0answers
236 views

How to check if a point is within bounded rectangle from Java

I make an AJAX request to retrieve data from a mysql database. I add the data to google.maps.Data layer as geojson. I would only like to load the data based on the viewport. To obtain the viewport ...
2
votes
0answers
724 views

Building java based desktop map application using embedded database such as spatialite

I am relatively very new to building GIS based applications and have a very limited understanding in this area. So I need some help in building a java based desktop application which would generate ...
2
votes
0answers
621 views

How to start developing with Jeppesen C-MAP?

I've just downloaded all the contents from the FTP of Jeppesen for their product called C-MAP CM93. I've been reading the documentation contained in the SDK folders, but I can't figure out how to ...
2
votes
0answers
202 views

How can I call gdal_translate from Java code?

How can I execute gdal_translate in Java? For example, will something like this work? gdal_translate "PG:host=localhost dbname='xyzy' schema=public' table='xyz'" "d:\xyx\ab.tiff"
2
votes
0answers
800 views

Geotools, output to kml and convert meters

I have a complex problem. I'm using geotools 10.* I have input data: latitude, longitude (WGS_84), radius in meters, start angle (12 o'clock), end angle (clockwise, i.e. turn to the right). I need ...
2
votes
0answers
192 views

Geotools 8.4 CRS.decode invalid(?) reference to HTTP_URI_OGC

I'm trying to do a simple CRS.decode to lookup a CoordinateReference system: E.g. CoordinateReferenceSystem target_crs = CRS.decode("EPSG:4326"); However this fails with a reference to the ...
2
votes
0answers
587 views

How to open image file saved with JAI in Geotools?

I need to find NDVI and other vegetation indices and then find changes in time with tif images. I've been using Geotools for this. I took 2 tiff images, then using QGIS I changed them to PNG because ...
2
votes
0answers
140 views

Basic unit testing for ArcGIS 10.0 Java Add-in

I've been assigned the task of translating an old ArcGIS VBA script into a Java add-in. I finished the rough translation of the code, now I'm starting the debug process. The first unit test I want to ...
2
votes
0answers
95 views

MultiPolygon from database

I would like to know how to create an instance of a Multipoint from a PostGIS database.. I do the query , then got the ResultSet named "area" , the column with MultiPolygon attributes is named "geom" ...
2
votes
0answers
195 views

Rerendering OpenLayers in JSF2

did anyone try rerendering OpenLayers in JSF2? I am using a4j:ajax events, I mark the render atribute with render="map" where map is naturally the id of the openlayers div tag, and I use ...
2
votes
0answers
441 views

web service to find the shortest path

if you have any idea that can help me I would be grateful :):) So i should create a web service wich will communicate with my android application .in my android app the client choose two point start ...
2
votes
0answers
285 views

Developing maps using Tile Mill and Processing(.org)?

I had a small question. I actually would like to build an application which is very similar to this but as a map and not on “Multi touch Table Top”. The functionality I need is Plot different ...
2
votes
0answers
346 views

How to get a AddIn to appear in customize mode categories?

I was hoping that someone here might have tried this, it seems like it could be a simple error somewhere. I was running the sample AddIn that was provided by ESRI and it worked fine until I tried to ...
2
votes
0answers
324 views

ArcObjects: How to get a reference to layer in a java add in

I am trying to implement a java add-in version of this solution: unique value symbolize layers from a lookup table. At the same time I want to start coding in Java for the ArcGIS Desktop, so I am ...
1
vote
0answers
11 views

How delete feature from layer using Gdal binding java

I am trying delete one feature from layer using GDAL in java https://trac.osgeo.org/gdal/wiki/GdalOgrInJava But nothing happens. ogr.RegisterAll(); Driver driver = ogr.GetDriverByName("ESRI ...
1
vote
0answers
16 views

GPRS data receiving in Java

i am creating a java program that will receive data from GPS tracker device and will store it in MySQL. for this purpose i need to create a GPRS connection for receiving data. Can anyone help me how ...
1
vote
0answers
26 views

How to return coordinates of my location using LocationDisplayManager (ESRI API)?

I'm trying to create an application which works with lat and long of a device position. I'm using LocationDisplayManager class to find and to map a location. MapView mMapView = null; public void ...
1
vote
0answers
23 views

Converting coordinate obtained from google maps to be used with gdal_translate in java or cs2cs?

this is a follow on question from Geo-Referencing an image from google maps with gdal_translate I am trying to get cs2cs to work but I am getting the following error. My command is as follows: ...
1
vote
0answers
61 views

GeoTools: Lambert72 to WGS84

I am trying to convert coordinates (and polygons from com.vividsolutions.jts.geom) in Lambert72 (EPSG:31370) to WGS84 (or the other way around). I'm using the org.geotools.referencing CRS and ...
1
vote
0answers
38 views

How to get image coordinate and corresponding location coordinate of a geo-referenced image in andriod

In my android app, I have a geo-referenced image which I am going to use as map. So I need to divide it into tiles. For that I want its top left and bottom right image coordinate(x,y) with location ...
1
vote
0answers
23 views

Performing Geographic Weighted Regression (GWR) in Java?

Is there any existing GWR (Geographic Weighted Regression) packages in Java? The packages should be able to conduct the basic GWR, the bandwidth optimation and some significance test.
1
vote
0answers
12 views

GeoTools FeatureCollection to Filter (make Filter from a FeatureCollection)

I have a FeatureCollection and I want to make a Filter of them. One way is that I may use FilterFactory#id(Set<Identifier> set) to make a filter. FilterFactory ff = ...
1
vote
0answers
29 views

html file not loading google maps and current location

I have a html file that when I click on it, it should open in a browser but it does not load. The link of the html opens and loads the image. Below is the link: ...
1
vote
0answers
26 views

Create a Geotiff with different colors

I have a geotiff raster image. I have estracted the WritableRaster, the envelope, and the gridsampleDimension I need to create a new geotiff using Geotools. GridCoverageFactory gcf = new ...
1
vote
0answers
38 views

Route between two coordinate points via line

I tried to search for an answer but couldn't find any so I decided to ask. I would like to ask which would be the best way to get the shortest (and the only one) route between two points from a part ...
1
vote
0answers
47 views

Error on Map Style Tutorial

Trying to follow the Map Style tutorial, as the functionality of changing color of objects selected is one thing I am trying to add to my project. However, after running the code from the tutorial I ...
1
vote
0answers
20 views

Error in: org.geotools.swing.MapLayerTableCellRenderer.getListCellRendererComponent

Getting this error while exporting an shapefile to svg (courtesy to iant): The weird thing is I wasn't getting this error before, but I just suddenly starting getting it after running my application, ...
1
vote
0answers
26 views

How to use ST_fromGDALRaster correctly with a given GeoTIFF

I am trying to import gdal raster data (a GeoTIFF) to a Postgis database, using the ST_FromGDALRaster method (http://postgis.net/docs/manual-2.1/RT_ST_FromGDALRaster.html). The question is that I ...
1
vote
0answers
25 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 ...
1
vote
0answers
96 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 ...
1
vote
0answers
35 views

How to fetch the street Names from OSM in android?

I am trying to make a program that will be able to fetch the street intersection coordinates in a given radius. I have OSM map on android. Now I am in the blur and cant see what to do! I have a ...
1
vote
0answers
24 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 ...
1
vote
0answers
50 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., ...