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

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41 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
76 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
632 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
143 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
7 views

Trouble in Natural Earth Shapefile “jumps” read using GeoTools

I'm using GeoTools 12.0 to read in Natural Earth data. I'm really happy with the performance, and ease of implementation. But, I'm having trouble reading in very large polygon data. The 110M Ocean ...
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1answer
114 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 ...
1
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1answer
43 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
84 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
137 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
105 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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98 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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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 ...
0
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0answers
73 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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0answers
72 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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104 views

Java GeoTools - Getting CRS from SRID

I might confuse between two things, but I need to do some calculation on my polygons (distance, area etc.). Using the WKBReader, I'm getting the geo: WKBReader wkbReader = new WKBReader(); byte[] a = ...
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30 views

Creating visualizations for geometry points with geotools

I am a beginner in everything that involves GIS coding and so on. After doing some research i chose Geotools as the tool to help me with my project. Basically i will need to create a new routing ...
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71 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
43 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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159 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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238 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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83 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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124 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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166 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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290 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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71 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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95 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 ...