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

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Buffer Zip Region Polygon with GeoTools

What I want to achieve is to buffer a zip region geometry with a distance in meters and than get the coordinates of the new (expanded) polygon. The original geometry polygon is parsed from a kml file. ...
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174 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 ...
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1answer
175 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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131 views

How can I clip a shapefile in java using geotools?

Does anyone have any advice or sample code that shows how to clip a shapefile using geotools? I am looking to build a simple GUI to allow a user to input a bounding box and polyline shapefile, then ...
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48 views

How can i get the contour (boundry line) of a feature collection

I have all parcels of given locality as a FeatureCollection. Each parcel is a Feature with a MultiPolygon outlinine the boundry of that parcel. I would like to get a Multipolygon that has the shape ...
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25 views

GeoTools ImageMosaic info

I wish I could merge several images georeferenced using a java application. in this link I saw that I can achieve my goal using the library "imagemosaic" of GeoTools. I can not find any guide or ...
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1answer
143 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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91 views

Eclipse Quickstart installation Problem

i try my best to install GeoTools using Eclipse QuickStart GeoTools 10 snapshot,and follow all the instructions,but i could't succeeded, and its give error message of download jar....i spend a lot ...
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151 views

Coordinate Conversion in PostGIS

I have some problem with the representation of the coordinates. I need to convert the coordinates from "EPSG: 32633" to "EPSG: 4326", and then create geometries in PostGIS. For the conversion (from ...
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3answers
312 views

How to crop an image based on a shapefile using GeoTools

I'm writing a web application using GeoTools (it's Java running in a web container). I need to crop a raster file based on a shape file. The core GeoTools documentation and examples I can follow ...
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56 views

Missing SRS and NoData when writing TIFF rasters in geotools

As I am writing .tif rasters in geotools, the CRS of the written file is not the same of the source (the source raster which I read and processed). My question is : How can I maintain and write .tif ...
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400 views

GeoTools WFS Feature retrieval

I am trying to use geotools to retrieve the list of features served by a WFS. I am following the tutorial provided at http://docs.geotools.org/latest/userguide/library/data/wfs.html. The code that I ...
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1answer
156 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
58 views

while reading a tiff file filenotfoundexception

I am unable to create File object while instantiate a tiff file using TestData.file function it is giving file not found exception . But the tif file is exist on the same path file exists ...
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348 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 ...
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1answer
250 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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134 views

GeoTools: SimpleFeatureCollection to KML error CoordinateReferenceSystem

I want to export a SimpleFeatureCollection (Read from a MySQL DB) to a KML file, here is my code used to read the infos into the console: private void featureCollectionToKML(SimpleFeatureCollection ...
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1answer
97 views

dbf file size is increased after exporting opened Shape file into new Shapefile

I have a shape file(polygon features) which has 7 attributes(id,area,etc.,) in dbf file. After reading the shape file i am exporting to a new Shape file in Which i am adding 2 attibutes (id ,area). ...
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81 views

Filtered SimpleFeatureCollection really slow on Map and other operations

I'm working with a shapefile having about 85.000 features. I need to select some of these using a filter and then showing these on a map. Now... If I draw the entire shapefile's features the creation ...
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2answers
668 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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1answer
581 views

GeoTools and PostGIS with ESPG:3857

I'm trying to use both PostGIS and GeoTools with the same ESPG:3857 projection, however, it looks like the projections in PostGIS and GeoTools differ. This is what I have in PostGIS: PROJCS["WGS 84 ...
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1answer
135 views

Good projection for covering most of the world

I'm writing an application for building navigation routes thru the city streets, and not quite sure what projection would be best. I tried EPSG:3587, however, the tools I'm using - GeoTools and ...
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60 views

Why are date vaules displaying a trailing 'Z' when layers are published with Geoserver and a PostGIS data store?

I have published various layers using Geoserver 2.2.x with a PostGIS 2.0.1 (PostgreSQL 9.1.x) data store. Fields that only have date values and not time/timestamp related values are stored as date. ...
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89 views

Csv To Shape Error

I have found a usefull tool to convert csv files into shape files with geotools: http : // docs.geotools.org/latest/userguide/tutorial/feature/csv2shp.html#create-a-shapefile-from-a-featurecollection ...
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1answer
758 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
110 views

Can I use GeoTools with Gradle?

I am going to implement shapefile uploading from a webform, and ingestion into PostGIS. One problem I am having is that my project is using Gradle for dependency management. I am unfamiliar with ...
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124 views

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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105 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
346 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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1answer
49 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
145 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
484 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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185 views

Add multiple shape files to a one layer in geotools

Im new to geotools and started looking at quick start example in http://docs.geotools.org/latest/userguide/tutorial/quickstart/maven.html i want to extend this application to add multiple shape files ...
4
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1answer
2k views

Convert Gauss-Kruger to UTM

How to covert Gauss-Kruger coordinates to UTM coordinates with GeoTools java library? As I have figured out the location (zone, country) is important. I need the calculation for Slovenia.
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4answers
4k views

How to bypass 10 character limit of field name in ShapeFiles?

I'm exporting geometry with attached text attributes from oracle database to esri shapefile format (.shp) with Java and Geotools library. Attribute columns in our database have names with more than ...
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103 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
70 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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1answer
885 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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282 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
70 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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129 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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43 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 ...
3
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1answer
738 views

How to overlay a Shapefile on a WMS layer using Geotools?

I am trying to overlay a shp file on wms layer using the example http://docs.geotools.org/latest/userguide/tutorial/raster/image.html. Each time I want to read the format of the file to get a reader ...
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1answer
261 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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1answer
291 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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107 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
130 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 ...
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3answers
816 views

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

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
169 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
381 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 ...