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

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Use coordinates from Geotools geometry-object to send request to Webserver

I have a polygon as a Geotools Geometry Object. No I want to use the coordinates of the polygon to send a request to a webserver. The webserver demands the coordinates to be in the following format ...
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96 views

Why does this Geotools Java reprojection to WGS-84/4326 cause offset?

I am using the block of code below. I am reading in a geotif with a UTM zone projection and converting it to 4326. I am pulling out certain multiband values and creating a new raster, when I plot the ...
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50 views

Problems resampling and displaying grid coverages with EPSG 27200 <-> 2193

What is wrong with this code? Given a BufferedImage , a world file and a coordinate system I construct a code coverage as follows: Rectangle actualDim = new Rectangle(0, 0, ...
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11 views

How do I get new world file parameters from a resampled grid coverage?

I have a grid coverage that I resample (reproject) and I would like to find out what the new matrix coefficients that would be outputted to a world file. How do I find them?
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205 views

Geotools create/save shapefile has no geometry information

When I create and save a shapefile in GeoTools, then open it in ArcGIS or QGIS, it doesn't show up on the map, even though the features are there in the attribute table (and all attributes I added ...
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107 views

Creation of tiled grid in JAVA with geotols

I am trying to create a grid using GeoTools in JAVA, covering specyfic area with resolution 50 m (distance between two points). To do so I have two points: the most nortwestern (let's call it NW) and ...
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1answer
164 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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63 views

how to get a feature from coordinates in geotools [closed]

I'm working on web services in Java and using GeoTools java api for wfs operations. I have a wfs store and a lot of features in it. I do some operations via geotools wfs api for example buffer, ...
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98 views

Parsing GML results in empty FeatureCollection

I am issuing a call to a WMS to get feature information. <?xml version="1.0" encoding="UTF-8"?> <wfs:FeatureCollection xmlns="http://www.opengis.net/wfs" ...
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90 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 ...
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96 views

Drawing Line on existant Shapefile in Geotools

I have a shapefile that is opened and looks as such: Now I am attempting to draw a line from two points I click on that map; however the code they give for the QuickStart.java example is ...
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1answer
99 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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62 views

How to set decimal precision in shapefile via javacode

we are using the below code : SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder(); builder.setName("Location"); String wkt = "GEOGCS[" + "\"GCS_WGS_1984\"," + " DATUM[" ...
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51 views

Exporting a shapefile with geodetic values in geotools

I have collections of polygon features. Each point in a polygon has local cooridantes (x y values) and geodetic Coordinates (latitude and longitude in decimal degree) i can easily export the shape ...
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44 views

GeoServer: `org.geotools.process.raster.AffineProcess` could not be instantiated, how to fix?

I have installed GeoServer from OpenGeo Suite 4.1 on a fresh Unbuntu 12.04 following Boundless instructions. Now I wanted to test geoscript-groovy, and installed groovy, geoscript-groovy-1.3.1, ...
3
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1answer
81 views

How to find intersected line is from left or right on another line?

There is a main LineString and its direction is known. I want to find the side of intersected lines to this main line. Example image: Black line is main LineString and red one is intersected ...
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460 views

Opening shapefiles with geotools

Trying to make a simple class that will read shapefiles and eventually be able to pull out the coordinates/attributes for each feature (working with points here). But can't quite figure out geotools. ...
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27 views

Check if Point belongs to LineString in Geotools

Is there any way to check with Geotools if a point is placed on a LineString. I am trying to retrieve street names of a route obtained from a routing algorithm. The route is displayed in gps ...
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133 views

GeoTools exception: failed to connect to EPSG database

I downloaded the GeoTools 11.2 binary and am attempting to get it to run in my Netbeans java application. I tried to run this part of code: ... SimpleFeatureSource source = ...
2
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1answer
110 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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93 views

Create a point on a map using geotools

public class GeotoolsFxTest extends Application { Group root = new Group(); Group map1 = new Group(); Group map = new Group(); Group texts = new Group(); Scene scene; private double dragBaseX, ...
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1answer
68 views

How to get the LineStrings from a MultiLineString

I was wondering if there is a way I can extract the LineStrings from a MultiLinestring object. What I am really trying to do is look into a MultiLineString and see if I have a certain LineString. I ...
3
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1answer
427 views

Creating point in shapefile from latitude/longitude using GeoTools?

I m new to geotools and i find bit difficult to plot a point using the latitude and longitude values. can any one heple me out to solve my problem. GeometryFactory geometryFactory = ...
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21 views

Projecting all the points from the csv file at (0,0) in a map

I am trying to plot some points on a map using the geotools tutorial (http://docs.geotools.org/stable/tutorials/feature/csv2shp.html). Unexpectedly all the points given in the .csv file are being ...
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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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25 views

GeoTools and image storage / retrieval

Please can someone let me know how I can create a schema (using SimpleFeatureTypeBuilder()), read and write image data? Simple data types (Integer/Float etc) work fine but how do I handle image data?
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294 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 ...
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1answer
544 views

Coordinate conversion (EPSG:3857 to EPSG:4326) using OpenGIS/JTS too slow

I am using the Java based libraries of OpenGIS and JTS to convert coordinates from EPSG:3857 to EPSG:4326 to proceed to compute the distance using the Haversine formula. The distance features in a ...
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11 views

How to read *.map file by using geotools api in Java? [duplicate]

How to read *.map file by using geotools api? String filePath ="C:\\CTO-New\\SOCLOMO\\Location\\Map Info FIles\\New folder\\18-july-2014\\1301\\filename"; File file = new File(filePath); ...
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2answers
157 views

How to convert multiple csv files to shp using Java

I have some 100 CSV files. I want to convert them in shp format using Java. The csv file contains lat long information in WGS84. I can understand it is a batch processing and it is difficult to do in ...
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1answer
65 views

Java how to create geotiff from points

I have an array of objects where each object has three fields: lat, lon, and category. It is essentially pixels that have been given a land use category. I cannot figure out how to turn this data into ...
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51 views

Ortholines in GeoTools

I am using GeoTools 10.7 to generate a map with decorations in my Java application. One of the feature I need in the map is to display ortholines both latitude and longitude. The lines will need to be ...
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1answer
53 views

Importing a Shapefile in SpaceStat with GeoTools [duplicate]

I've just discovered the GeoTools tutorial to generate a Shapefile from a CSV containing a list of cities. I've managed to make it work but when I try to create a new Geography in SpaceStat, importing ...
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1answer
109 views

Missing class org.geotools.util.Version

Full story below, but essentially I'm trying to use Geoserver and it needs the class org.geotools.util.Version, but it can't find it even though I can see it's in the appropriate jar file. Something ...
2
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1answer
155 views

Extracting data from Natural Earth using GeoTools java class?

I wrote a small java class to extract country boundaries from naturalearthdata.com data. My problem is that the coordinates do not match with OSM map, the whole polygon is shifted... e.g. according to ...
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1answer
138 views

How to display additional features

In my application I have a gis file to render an (java BufferedImage) image of countries with geotools which is sent directly to the browser. The colours of the countries (plus name and additional ...
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1answer
472 views

Version problems with Geotools CSV2SHP example

I'm trying to use the CSV2SHP tutorial. I spent some time trying to get it to run but using v10.x of Geotools causes the shapefile to be output with no geometries. For instance if I open it in QGIS, ...
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2answers
355 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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55 views

Is there a way to retrieve/query country data from a shapefile programmatically using map coordinates in GeoTools?

I am using Geotools to parse and draw a shapefile. Now; when I draw that map I receive coordinates with this bit of code for my Flight Line button. void selectFeatures(MapMouseEvent ev) { ...
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129 views

Splitting multiple polygons with a line in JTS geotools

i am using geotools as my GIS map solution. now i want to split multiple polygons to build a road or river. passing through multiple polygons so, can you plz help me how to do this splitting a single ...
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1answer
55 views

Test for polygon orientation

I'm want to merge multiple geometries with Geotools (starting off with one geometry) but the result is a polygon that has a clockwise orientation. This gives a invalid geometry. My code for the merge: ...
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12 views

Display coordinate references in Geotools

I'm using this library to finish my final project and i have to say I'm no familiar with the maps worlds. My question is if geotools has a method to show automatically the coordinates references in ...
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1answer
2k views

I nead to find the nearest places based on latitude/longitude points

I have a java aplication backed by a mysql database which contains events with locations (latitude/longitude), the location data is saved as POINT data type. I nead to find the nearest events in some ...
0
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1answer
90 views

how can we convert vector data to raster data in geotools

In my project iam able to open and save shape file. I want to convert this vector data to image format as a tiffimage plese help me the procedure to do the same.
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242 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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99 views

Geotool SwtMapPane draws in view but not in TitleAreDialog

I've written a very basic rcp app to show points and lines in a view. When I tried to move this code to a wizard page, it gave the error below. When I use code that simply loads and displays a ...
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1answer
148 views

A simple geotool app example

I've been playing around with the GeoTools libraries, but I can only show shape files and no custom layers. Requirements are that it must use the SWTMapPane and not via the static ...
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1answer
184 views

Transactions in Geoserver / WFS - Is it possible to know which “action” failed?

I'm trying to implement transactions for some queries to Geoserver. I'm using plain HTTP Post to make the requests, from Java. One of those queries looks something like : <wfs:Transaction ...
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1answer
50 views

Problem Inserting feature with Geotools WFS

With this tutorial http://docs.codehaus.org/display/GEOTOOLS/Data+Writing When I try to insert a feature try { DataStore geoToolsClient = getGeoToolsClient(); Transaction transaction = new ...
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1answer
98 views

Can I define a transformation between 2D and 3D in Geotools?

I'm using Geotools, and I need to convert coordinates between 2D and 3D coordinate reference systems. I recognize that there's no universally-correct way to do this: 2D -> 3D means "making up" a Z ...