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

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69 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[" ...
3
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1answer
89 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 ...
2
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1answer
91 views

How to create a new shape file from jts geometries?

What I use: Java 1.7, JTS 1.13, geotools.api 14 What I have finished: Creating correct JTS geometries from OSM relations, ways and nodes. What I want to achieve: Create a csv file which contains the ...
2
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1answer
72 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
29 views

Null save into Shapefile using geotools

When I convert csv to shp in geotools, I have an error NULL store for first attribute in my shape file. e.g. - want result: POINT(3625.55 3659.25), 2.4, 3.9 Error result: Null, 2.4, 3.9 This is ...
1
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1answer
34 views

Geotools geoTiff running slow

I am using following code to display geotiff file. Its only a small file 1,5MB but when I am moving map I have online white screen which gets loaded after I finish moving but it is a bit slow for me. ...
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1answer
165 views

Error Reading ESRI ArcGrid File using GeoTools?

I have a raster file in ESRI ArcGrid format (e.g. hdr.adf). I would like to run some analysis using GeoTools. I've never used the coverage classes before and I'm having a few problems out of the ...
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1answer
121 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 ...
0
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1answer
53 views

GeoTools, convert CRS for Google Maps

I'm trying to use GeoTools to convert coordinates from EPSG:3857 to various CRS, in order to display WMS layers on a Google Map. For example, I want to display a layer in the EPSG:4326 CRS. I have ...
0
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1answer
178 views

Direct connection from geotools to arcgis 10.3

Is it possible to direcly connect to ESRI 10.3 database using geotools ? I use geotools 13.0 and have ESRI database set up on oracle. Previously I was able to connect to SDE using gt-arcsde-plugin ...
0
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1answer
26 views

Problem with editing in geotools 13.0

I have a problem with getting the ID of a newly created feature in the shapefile. I have a datasource / datastore that reads and writes to a shapefile. I create a feature, add it to the store and ...
0
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1answer
69 views

GeoTools WFS Query sortBy not working for GeoServer WFS

I am using GeoTools to query a GeoServer WFS using the following code: Map connectionParameters = new HashMap(); connectionParameters.put("WFSDataStoreFactory:GET_CAPABILITIES_URL", ...
0
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1answer
179 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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1answer
208 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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274 views

How to handle multipoint symbology catalogue (as in mil2525c, tactical graphics appendix b)

Is there a general format (standards based) to store a vector based drawing description for multipoint symbology (means having several anchor points reflecting symbol point <-> geographic point ...
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198 views

Get centroid of SimpleFeatures in GeoTools8

I've got some SimpleFeatureCollections and now I want to get the Centroid of every SimpleFeature in the collection. Unfortunally I've only found a centroid method for Geometry. Is there any way to ...
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10 views

Label rendered with empty features using geotools

I am using geotools to generate some images based on the shapefile data, it works well until I tried to add labels for the line features: the labels are rendred even there is no features in the ...
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19 views

GeoServer: Filter Function problem for function if_then_else argument #2 - expected type Object

I'm facing a problem with the GeoServer SLD XML. My XML code is as follows: <Fill> <CssParameter name="fill"> <ogc:Function name="if_then_else"> ...
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43 views

How to choose a projection for area measurement on building to continental scales?

I have many geographical objects described as polylines, polygons, multipolygons. All objects are in WGS84. Object could be: a building, stadium, park, street, highway, city, state, even country and ...
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18 views

Insensitive case query in Geotools to WFS

I'm trying to make an insensitive case query from Geotools to WFS (Web feature service) datasource,I used FilterFactory2 with the method like(Expression expr, String pattern, String wildcard, String ...
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29 views

GeoTiff error when building Jar with GeoTools

I'm seeking some help with GeoTools. I've been using it for a school's project, I had almost no problem until now. But now that my project is done, I've tried to build an executable jar with the ...
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154 views

Problems with direct connection to ESRI Oracle db for 9.3.1?

I am trying to create a direct connection to ESRI Oracle database for version 9.3.1. When I try to connect I get this error: org.geotools.arcsde.ArcSdeException: Can't create connection to none for ...
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26 views

How can I modify the records of geotable and non-geotable in app application with hibernate-spatial and geoTools

I want to develop a GIS application with JAVA. I want to use Spring-4.0.1, and Hibernate-4.3.x. The application’s Database have GeoTable and Non-GeoTable. The records of all tables are modified. I can ...
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102 views

ClassNotFound Exception: org.postgresql.Driver Using Geotool: gt-imagemosiac-jdbc-x.x.jar

I am a newbie to GIS, coming from a strict MIS background. Anyway, I have been having a little challenge for the past couple of days trying to import tiles and pyramids into my database. Using a ...
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75 views

GeoTools refresh layers in map

I need update/refresh/repaint the layer on the map when i click on the button refresh. I remove the layer and add it again but it not working and points on the map are not displaying. Is there an ...
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28 views

How to obtain a `GridCoverage2D` from Geoserver raster layer?

I am learning java programming with geoserver. I see that in geoserver web services if you pick a raster layer as an input parameter (e.g. img1) from the web service builder interface, in the java ...
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58 views

How to combine two `GridCoverage2D` to make a new `GridCoverage2D`

I was wondering if there is any GeoTools code example which combines two GridCoverage2D to make a third new GridCoverage2D? I can find examples for reading pixels from GridCoverage2D or writing a ...
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68 views

Geotools/Geoserver Modifiy interpolate function with dynamic color fill

Here I am again with a different approach to my problem. I use the interpolate function in geoserver to get a choropleth from my data. The problem is that I have to hardcode the color for each value ...
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161 views

FATAL: **password authentication failed for user “Geotools”**

I just add Geotools jar files and used projection packages import org.geotools.geometry.jts.JTS; import org.geotools.referencing.CRS; CoordinateReferenceSystem sourceCRS = CRS.decode("EPSG:4326"); ...
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33 views

import org.geotools.referencing.CRS

while working on java serve-lets, I wanted to project a pointset from EPSG:4326 to Mercator projection. But I'm lost on how to get and use the package "import org.geotools.referencing.CRS". My ...
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142 views

how apply an SLD to vector layer in geoTools java

I have been using geoTools 11.2 in Java 1.8 to display a vector layer with a desired style of it in worldwind 2.0. I have read features and styles and created objects. I have my own defined vector ...
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110 views

Unit of Geotools' getArea function

I have Polygons with WGS84/EPSG:4326 coordinates (like 13.57933804767844,52.5126298984133) and use the Polygon.getArea function to obtain the area of the polygon. But the result I get is something ...
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87 views

Linear interpolation on raster data, save result (geoserver)

I am trying to perform a linear interpolation on a coverage layer (Source data is in EHdr Coverage format, file extension: .flt). Ultimately, I want to use the interpolated layer as input to a WPS ...
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57 views

How can I draw a Line on a Shapefile?

I have a problem, in Java I can draw points on my Shapefile, but I don´t know how to draw a Line. I found the SimpleLineSymbol, but don´t know how to use it further. My first try was ...
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97 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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14 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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159 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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83 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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122 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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126 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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39 views

creating Polygon from LineString and a width

I have to create a Polygon from a lineString and a width. Ex: Given a street as a lineString (Or a list of points) and a width, create the polygon (the road). I am using Geotools, but I couldn't find ...
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111 views

Calculating scale from tiles using their envelope

I have a few problems I need to solve, and it comes down the the below example. It may be my understanding or the way I am doing it. Can someone please explain why my logic does not work. I am ...
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0answers
61 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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199 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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189 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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148 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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257 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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355 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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81 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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99 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 ...