GeoTools is an open source Java library that provides tools for geospatial data.

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How to retrieve latitude/longitude from Tiff with Geotools

I am new to Geotools and I have to work on project which includes a set of tiff image maps. In that I need to get latitude/longitude for a given point. Ex: When mouse click occurs I want to get the ...
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150 views

Create shape file with point

I am trying to create a .shp file with Point shapes. I am following this tutorial: http://docs.geotools.org/latest/userguide/tutorial/feature/csv2shp.html I create the project, no syntax error and ...
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1answer
67 views

GeoTools Omitting Quotes in its Queries?

I have a table in my PostgreSQL 8.4 with a column 'Shape' of type 'geometry'. When I start up Tomcat my GeoServer throws an exception: 24 Sep 16:20:25 WARN [geotools.jdbc] - Error occured determing ...
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1answer
197 views

GeoTools 10 - Convert Raster To Vector

I am fairly green with GeoTools, and having a hard time converting a raster (GridCoverage2D) into a vector format. In the hours I've spent searching this site and Google, there seems to be multiple ...
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1answer
274 views

getDestinationGeographicPoint() in geotools returns wrong coordinates in South/West

I am trying to calculate a coordinate given an azimuth, distance and start point. If my code uses an start coordinate in North/East quadrant, all goes fine. But, by using 0,0 coordinates, an azimuth ...
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1answer
1k views

combine several polygon objects in one polygon object with geotools (is it possible)?

I have several polygon objects and I need to "merge (or combine or dissolve)" them toghether into one polygon object. With a GIS tool like Quantum GIS, I do this with Geoprocessing option "Combine ...
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273 views

GeoTools example for Shapefile export to already existing PostGIS table

I'm a newbie to GeoTool API, and I'm looking for a way to export the specific shapefile to the specific already existing PostGIS table with GeoTools (the underlying problem I face is that PostGIS ...
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1answer
922 views

Geotools: Efficiently writing a GeoJSON stream into a Shapefile

I've been trying a few solutions to efficiently convert GeoJSON into a shapefile without having to store all features in memory. I'm using GeoTools 9.2. The problem is not so much in how to stream ...
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214 views

Best way for rendering geotools in web service [closed]

I'm using geotools in my web service project. I always thought geotools is somehow compatible with openlayers, but now when it actually came to implementing this functionality, i can't find even one ...
3
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1answer
122 views

Abstract Data Store

I'm trying to create a new extension for data store in geoserver that can take data from in-memory arrays.But as I'm kind of new to geotools I'm not sure how to do it.Any help would be really ...
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503 views

How to create SLD with inline features and style and add to WMS using GeoTools?

I am trying to create labels with arbitrary values on a WMS map using GeoTools (9.4). I have created a feature type, a feature (in a data store), and a user layer. With that I generated an SLD ...
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1answer
2k views

getting error while reading shape file (The following locker still has a lock)?

I am working with reading and writing shapefiles. I can read and write a shapefile but while reading it the warning message below is coming in the console, no error is coming. reading 29 Aug, ...
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1answer
117 views

Writing shapefile metadata with geotools

Using GeoTools, I'm able to write features to a shapefile by essentially passing a SimpleFeatureCollection to a ShapefileDataStore. The feature collection provides both a schema and features including ...
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258 views

How to have polygon labels always display using GeoTools 8?

I'm not able to consistently display labels for polygon features. The label is not displayed, as far as I can tell, unless the polygon is large enough to contain the entire label string. I can ...
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1answer
209 views

overriding showMap

This code is not working as needed. I need just to make a window with addlayer button. import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import ...
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50 views

CRS centered on the 180 meridian?

The problem I'm dealing with is the old 180 meridian problem, except I'm not trying to plot or render shapes that cross it, I need to do intersections of lines that cross it. The only spherical ...
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2answers
413 views

Geotools writing shapefiles without geometries [duplicate]

When I am writing a shapefile according to CSV2SHP tutorial, it contains features without geometries. I use version 10-SNAPSHOT. For example the result of ogrinfo looks like below: D:\>ogrinfo ...
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1answer
427 views

geotools / jts crs transformation result not at correct position

I copied the example from geotools, which shows how to transform a shapefile into a different projection. (http://docs.geotools.org/latest/userguide/tutorial/geometry/geometrycrs.html) But when ...
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0answers
165 views

What is the relation between geotools and hibernate-spatial ( differences and similarities)

I know that hibernate-sapatial is supposed to be an abstraction for the db . And from what i understand there is some kind of possibillity to do that with geotools? ( to what extent i do not know). ...
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1answer
231 views

geotools oracle spatial plugin samples / documentation

I plan to use geotools and I saw that there is an oracle plugin available, but the documentation is not very detailed. Are there any examples or documentations available to access the functionality of ...
2
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1answer
123 views

Add features to main SDE Table with geotools

Sorry for my english, I hope you can understand ;) I'am using geotools 8.4 version. I try to copy all features from SDE Table(TEST.DBO.MM_SOURCE) to another SDE Table(TEST.DBO.MM_TEST). All features ...
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3answers
1k views

How to build a portfolio for a GIS/Java career path? [closed]

I have been a GIS Analyst for over 10 years and am currently studying java (50% through the course). My plan is to develop GIS applications mainly focused towards open source solutions. I would like ...
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1answer
265 views

How to specify field name in raster to feature conversion tool or intersect tool?

What I want to do : input: raster file, polygon feature layer process: Convert raster to polygon using IConversionOp.RasterDataToPolygonFeatureData Method Intersect resultant polygon feature class ...
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1answer
706 views

Simple WebMapping application with postgis Database

am very new to web-mapping, so this question may be a little misguided. I want to develop a simple web mapping application using OpenLayers which can display Cadastral information that are currently ...
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1answer
348 views

How to modify the coordinates of a SHP geometry using Geotools?

I have a shapefile with some polygons. I would like to change the height for this elements using Java. The rest of the attributes should be the same. I've thought using GeoTools but I haven't found ...
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1answer
579 views

GetCapabilities Request for WMS

I'm trying to connect to a WebMapServer with the Geotools WMS classes. My problem is, that the resonse-object "capabilities" doesn't contain all layers. When I'm doing the request in a browser, I can ...
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1answer
226 views

ImageMosaic-JDBC Error

I'm trying to get postgis raster layers in geoserver-2.3.1, with postgresql-8.4, postgis-2.0 and gt-imagemosaic-jdbc-9.1.jar support. I'm going through the tutorial with a PNG raster that i have. In ...
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357 views

Getting: org.opengis.referencing.NoSuchIdentifierException: No transform for classification “Transverse Mercator Zoned Grid System” with geotools

Using geotools I've been trying to create a referenced envelope after converting/reprojecting from WGS 84 to UTM with specific zones and it seems that either I need to do something with authority ...
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2answers
1k views

GeoJSON to Shape file conversion with geotools

Can someone please provide me an example of how to convert GeoJSON to Shape file using geotools?
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1answer
110 views

Diff operation in PostGIS/Geotools

What is the best way to perform a diff operation on Postgis features/tables or Geotools objects? Are there any automatic methods I can use? If not, what would be the optimal way to implement your own ...
3
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1answer
1k views

Getting MongoDB working with GeoServer 2

I'm trying to use MongoDB with GeoServer but it is actually not working at all. Someone once posted this: Getting MongoDB Working with GeoServer, but since he could solve his problem without any help ...
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676 views

What is the best way to convert WKT String to GML String

What is the best way to programatically convert WKT String to GML String? Every reasonable library (at best available in some Maven repository) can be used. Till now I came up with this solution ...
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1answer
160 views

Global projection with zero scale distortion at non-zero latitude

I am looking for a global projection with zero scale distortion at non-zero latitude. I have tried using an Oblique Mercator projection centred at a specific latitude and longitude of centre (with ...
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0answers
344 views

Implement a WFS Server using Geo tools

I need to implement a WFS Server using Geo tools, I have an application developed in Java using a spatial database. I wish to develop a WFS service using GeoTools. As a first step, I am implementing ...
3
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0answers
275 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 ...
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2answers
1k views

Fastest way to convert shapefile to postgis in java

I have been using geotools to read shapefiles and import them into postgis. Unfortunately, when large files are being imported, this leads to a massive lag time --8000% of shp2pgsql piped into pgsql-- ...
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1answer
573 views

What do I need to create 3D model of real terrain?

I'd like to create 3D model of some real terrain (to be exact it's about some real roads and only as much as 80m to 100m of roadside - 40m to 50m of each side). As I don't have access to highly ...
3
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1answer
338 views

How to write GML parser with Geotools?

I wrote a Parser for a GML file from the OS Mastermap with geotools 8.4. With one part I still have a problem. This sniplet of the xsd: <complexType name="RoadLinkType"> ...
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0answers
696 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 ...
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0answers
273 views

How to use CropCoverage Render Transformation in Geoserver SLD (WPS)? [closed]

I have yet to find an example on the web (or in code) of anyone using the "Crop Coverage" Render Transformation from a Geoserver SLD. Does anyone have an example or at least be able to point me to ...
2
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0answers
282 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 ...
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0answers
184 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 ...
3
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1answer
410 views

How to couple GeoTools GML bindings for encoding to GML 3.1.1

I've successfully created GeoTools (8.3) bindings for parsing and encoding XML bindings as described in their tutorial: http://docs.geotools.org/latest/userguide/library/xml/internal/bindings.html I ...
7
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1answer
6k 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 ...
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0answers
504 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 ...
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2answers
899 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 ...
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0answers
31 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. ...
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1answer
757 views

Display google maps with Geotools?

I would like to display Google maps (Raster and Vector) in Java using GeoTools. I am stuck because I am new to this library. Are there any tutorials out there that can help me ?
3
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1answer
441 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 ?
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3answers
6k 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