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

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1answer
69 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 ...
3
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1answer
530 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 ...
2
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1answer
133 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 ...
1
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1answer
92 views

Displaying 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
33 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
63 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 ...
1
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1answer
107 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
111 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 ...
0
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1answer
83 views

How to add RGBA color map to single band GeoTIFF using GeoTools 2.x?

I am developing a light weight GIS application, and am looking for the simplest way to add an RGBA color map to a single band GeoTIFF using GeoTools 2.x?
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40 views

autocomplete polygon function with geotools

i'm using geotools to develop some GIS features, i don't know how to implement the autocomplete polygon function using Java code. does any one tried to do it before?
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150 views

How to make a geo reference image using GeoTool based on a matrix mapped data?

My ultimate objective is to make a geo reference image and make it as a raster layer to overlay the image above my openlayers map. I have a set of geo coordinate data, and each coordinate is assigned ...
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201 views

Add labels for printed map (GeoTools)

I have some problems with labels for printing map with GeoTools. Next code (with some cuts, code on Scala language) can help me for printing map: val map = new MapContent() val parser = new ...
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166 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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0answers
53 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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0answers
31 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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109 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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0answers
68 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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118 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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146 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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0answers
263 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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68 views

How to load an image to mark the city (instead of point) using GeoTools?

I went through the Image Tutorial in http://docs.geotools.org/stable/tutorials/raster/image.html and was able to load image and get the output. But I need to load the image without use of world file ...
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93 views

How to pass in a database created on the fly in code to Quick_Export in arcpy?

So I am trying to programmatically use quick_export through the arcpy package in an arcmap tool, and so I referenced the quick_export tool's dialog box that comes up when it is executing for the ...