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

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16 views

location name judger

I am making a project which requires me to find out if a particular word in a sentence is the name of a city/state/country/any location basically. Can you please help me with some app/ a database.
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1answer
217 views

Geocode service findAddressCandidates returns no candidates with 10.0 address locator

I posted this on an esri forum but nobody touched it. We've recently updated a geocoding service and I'm now unable to return addresses to my Java application. The old service is built with a 9.3 ...
2
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1answer
106 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 ...
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0answers
32 views

When a raster is described in general as either a double or an integer how do conversions work for that type

I know a raster format is essentially a grid of cell values that may have values associated with color, but I'm unsure of how the primitive types factor into the format. In addition if I need to write ...
2
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1answer
87 views

Are there any open source distribution raster merging functions within JTS or GeoTools

I'm looking for something similar to the combine function from the ISelectionSet interface from ArcObject's SDK 10 .NET framework on a more scaled down level. Ergo, I don't plan on using that ...
4
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1answer
3k views

How to draw polygons on an existing map?

If you want a map with some circles, squares, etc. representing cities or something else you can use the following code. Note that you can change the map and the coordinates with yours, and you'll ...
2
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1answer
150 views

ArcObject 10.1 Java : Raster Analysis

I have been working with ArcObjects Java for a short time and have not been able to find a solution to the following problems: How to get the Raster object from a IRaster reference? IRaster raster = ...
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0answers
69 views

ArcGIS Server 10.0 Java - Upgrading JAI

I am developing a SOE for ArcGIS Server 10 SP 5 in Java. The SOE makes use of some GeoTools functionality - specifically the HeatmapProcess. I have written a small api (with all GeoTools, no ...
2
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0answers
279 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 ...
3
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2answers
626 views

Merging Shapefiles With Geotools

I am trying to merge some shapefiles with different schemas in geotools. Im aware of ogr2ogr, but for now I would like to figure out this problem with Geotools. The steps I'm taking are: 1) Create a ...
-2
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1answer
184 views

How do I set the protocolVersion using the jdbc postgres driver? [closed]

I attempted to concatenate a string to the url parameter of the below in order to set the protocolVersion, but I'm not sure how to keep the string in the url without altering the name of the database, ...
1
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1answer
157 views

layers in opentripplanner webapp

I am customizing the opentripplanner webapp according to my needs. it has 5 different base layers. but in code (in map.js and OpenLayersUtils) i can't find where it adds these layers to map.
2
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0answers
94 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
2answers
413 views

How to work with GDAL/OGR in Tomcat?

I make web application in Eclipse using GDAL. In Eclipse in Debug Configurations i add variable path=path/to/gdal/folder. In project i add gdal.jar to build path and copy gdal folder in lib directory. ...
1
vote
1answer
85 views

using geocoder of opentripplanner

I am developing a webapp using opentripplanner. I have followed 2 and five minute tutorials at their websites, there is also a opentripplaner-geocoder.war webapp, but i am unable to figure out that ...
0
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1answer
378 views

What can I use to read MapInfo files in Java?

I want to read MapInfo files using Java. Before I used geotools for this but now I have problems with the GDAL library in Win7x64. Can i find geotools or gdal only for Java? To it not usede gdal's ...
0
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1answer
117 views

Column exists in DatabaseMetaData, but does not exist in relation?

I am using JDBC to query a PostgreSQL database. And I want to populate a column called wiki_url based on the value of another column, level which will determine which value of 5 columns to concatenate ...
0
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1answer
313 views

Eclipse can't find Driver.class from postgresql-9.2-1002.jdbc4.jar file nor AbstractJdbc4Connection class

I am using the jar file in my configuration path after following the example from postgresql/jdbc tutorial. But after I added the jar file and configured it for my reference library when I run it I am ...
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1answer
95 views

Update Service config file with ArcIms java connector

We are using arcims java connector to create, update, delete services. it works fine for create and delete. However when we try to update the config file of service (ie : mxd file) the new mxd file is ...
1
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1answer
269 views

What software would be useful to create General Transit Feed Specification (GTFS)?

I am doing a project in which i am required to create GTFS. I look at transit google developer forum which provide a format to create feed but that completely have to done by hand (we have to write ...
1
vote
1answer
102 views

building opentripplaner gtfs.zip [closed]

I am building a journey planner app using opentripplanner. i have followed their two minutes tutorial in which we just run webapp which uses pre build graph.obj file, it works fine. But in next five ...
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0answers
128 views

Help with opentripplanner

I have started working with opentripplanner (i am developing a journey planner app). I am following the two & five minute tutorial given on opentripplanner website. but while starting server using ...
1
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1answer
153 views

Having trouble setting up Eclipse for ArcGIS 10.0 Java development

I'm trying to setup Eclipse for ArcGIS development. I've been reading for days and weeks through the documentation and through the forums here and elsewhere. It seems that no one has this same ...
2
votes
0answers
30 views

How to convert a shapefile to WKT with GeoTools snapshot 9? [duplicate]

Possible Duplicate: Write out a WKT file from a loaded shapefile I need to convert a shapefile to WKT to be read in OpenLayers. The shapefile is one that has been created by Geotools. ...
2
votes
2answers
451 views

How do you create a button in ArcGIS and have it run code?

I'm brand new to ArcGIS and have only a year or two of programming experience. I know Java and a little C#. I have a Java app that processes geographical data. I need to have a button in ArcMap that, ...
2
votes
4answers
344 views

What GIS tools and packages are needed to find out nearby users in android application?

I'm building a location based android application with following requirements: Need to find out nearby users(i.e users using the same application) Need to find out users in the state Need to find ...
3
votes
1answer
134 views

Problem installing ArcSDE engine plugin for Eclipse

I'm looking for the following jars for the ArcSDE API: jsde_sdk.jar jpe_sdk.jar concurrent.jar icu4_3_2.jar thanks to this answer I've found that they can be gotten installing the ArcSDE engine ...
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0answers
176 views

When I try to do a WMS request to geoserver using the leaflet API I am getting a format related error

This XML file does not appear to have any style information associated with it. The document tree is shown below. <ows:ExceptionReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ...
2
votes
1answer
255 views

What is the best API to use GeoTools or uDig (for the context of my application)?

I am trying to develop a java application that displays : Google maps, Openstreetmap and Bing Map Data. So which is the best SDK to use in this contet Geotools or uDig ?
2
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3answers
3k 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
817 views

Java client for WFS-T?

I have a geoserver with a postgis database on one server and an Java application on a different server. Now I need to connect these two servers so that the Java application can manage (create, alter ...
3
votes
1answer
344 views

OSS java approach to convert Shapefile to GML

We've got a project coming up where we need to upload .zip of a shapefile, join the .dbf to some lookup tables, join to other tables also uploaded (one to many attributes for each feature), and ...
3
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0answers
318 views

How to sort a SimpleFeatureCollection using GeoTools?

I have a featurecollection: SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(dbFeatureType); SimpleFeatureCollection collection = FeatureCollections.newCollection(); while ...
2
votes
1answer
848 views

Regarding property setMinScale(scale) and setMaxScale(scale) in ArcGIS Java script API

I am new to programming in JSAPI. I have two dynamic layers and I want to set the property setMinScale(scale) and setMaxScale(scale) to layers so how do I Set ? ex. I tried using ...
5
votes
1answer
573 views

What is the best practice for reading data from a raster band with Java and GDAL?

After using GDAL with Python for a year or so now, I'm getting back into Java and trying to figure out how to use GDAL with it. I am wondering if anyone has had experience with reading data from a ...
3
votes
0answers
314 views

Convert Lat/Long to UTM specifying which zone to use (Java)

I have a set of coordinates in decimal degrees spread across two UTM zones in my Java application that I want to export to use in Petrel, so they need to be in the same UTM zone. Is there a java ...
6
votes
1answer
713 views

Find Perpendicular Distance and Minimum Perpendicular Vector between a Point and a Line using GeoTools and JTS

I have a line formed by 2 lat/lon pairs, and the lat/lon of a point. I would like to find out the perpendicular distance between the line and the point on the Earth surface (can assume Earth as great ...
2
votes
1answer
113 views

Java or .net platform is good for creating interactive web page [closed]

I have just now completed my degree in Spatial Information Technology, and learned how to use the ARCGIS platform and QGIS. Now I wanted to create a server/client webpage using mapserver for a project ...
0
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1answer
648 views

How current is GDAL in Java

I have used the ogr2ogr to import various formats to Postgres and have used GDAL utilities. Is there a complete Java port for these tools? Or are they simply wrappers calling JNI to C++ code? I have ...
2
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0answers
215 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(); ...
2
votes
3answers
1k views

how to extract lat long from WKT data?

i want to extract lat long form WKT data and stores into arary list i have tried one solution which is proposed by a user but it has some problems String str = tv.getText().toString(); str = ...
1
vote
0answers
100 views

Esri ArcGIS plot point

I have created a java function to plot the points on the map, and I need to pass the x-y coordinates and the taskevent as the parameters. I would like to ask what should be the input parameter for ...
1
vote
0answers
217 views

Convert GPS coordinates to EPSG:54004

I need to convert GPS coordinates to EPSG:54004 on android. Are there any libraries or formulas to acomplish the task? Thanks in advance.
6
votes
2answers
314 views

Is it good practice to manage all JTS spatial objects as abstract Geometry instances?

I'm new to all this GIS business, and am developing a Java web app using the JTS library. I'm trying to get my head around the JTS classes and how they're supposed to be used. I have some existing ...
1
vote
3answers
230 views

choose of java web framework for our project

We are developing java web gis application. We use geoserver, postgis, geotools(all the core code). We need to show/hide(or create/delete) dynamically vector layers(from shape file) and raster ...
2
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0answers
81 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" ...
0
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2answers
129 views

dijkstra_sp runs without error in postgres query terminal, but triggers an error in Java

I am running this simple query select id,gid from dijkstra_sp('roads',22,33) This works perfectly fine and returns results in postgres query terminal. However running exactly the same query in java ...
1
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1answer
839 views

GeoToolKit conversion from lat/long to UTM

What is the proper way to convert lat/longs to a UTM coordinate system using the Java geotoolkit API? I have not worked with GIS software before, so maybe what I am trying to do is not directly ...
2
votes
1answer
129 views

Can I use a Geotools raster layer in a Geomajas webapplication?

I am working on a Geomajas web application and have a Geotools RasterLayer (a GridReaderLayer to be precise) that needs to be integrated with the map in the Geomajas app. I have been searching the ...
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0answers
152 views

Applying colormap to grayscale tiff image using java

I have a gray scale tiff image.Now i want to add some pseudo colors i.e for pixels whose DN from 0-140, red color;DN from 141-255 ,blue color.Please tell me how to modify the raster table.Otherwise if ...