Re: [udig-users] Make multipolygon borders less detailed?

[Jan Henrik Øverland <janhenrik.overland@xxxxxxxxx>]

Hi Andrea,

I can see that the manifest file is built by you:

Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Created-By: Apache Maven
Built-By: aaime
Build-Jdk: 1.5.0_18
Main-Class: org.geotools.data.gen.tool.Toolbox

Class-Path: geoapi-2.2.0.jar jsr-275-1.0-beta-2.jar gt-api-2.5-SNAPSHO
 T.jar jts-1.9.jar vecmath-1.3.1.jar gt-metadata-2.5-SNAPSHOT.jar gt-m
 ain-2.5-SNAPSHOT.jar jdom-1.0.jar commons-beanutils-1.7.0.jar commons

 -logging-1.1.1.jar gt-data-2.5-SNAPSHOT.jar gt-shapefile-2.5-SNAPSHOT
 .jar velocity-1.4.jar velocity-dep-1.4.jar

When I do this in a cmd shell:

cd <GEOSERVER_DATA_DIR>/data/test/0

java -jar <GEOSERVER_INSTALLATION>/WEB-INF/lib/gt-feature-pregeneralized-2.5.SNAPSHOT.jar generalize test.shp . 5,10,20,50

..I get the error message in the previous mail. Do you know why? The Main-Class is clearly defined.

Jan

On Wed, Sep 2, 2009 at 1:31 AM, Jan Henrik Øverland <janhenrik.overland@xxxxxxxxx> wrote:

Seems to be some manifest telling where to look for the main class missing, right? What to do?

I'm running the web archive version 1.7.5.

On Wed, Sep 2, 2009 at 1:24 AM, Jan Henrik Øverland <janhenrik.overland@xxxxxxxxx> wrote:

This is probably exactly what I need, thanks. Unfortunately I get an error message during the "getting started" instructions. I have downloaded gt-feature-pregeneralized-2.5-SNAPSHOT.jar and feature-pregeneralized-1.7.5.jar and put them into WEB-INF/lib. When I run the java command I get the following:

Exception in thread "main" java.lang.NoClassDefFoundError: org/geotools/data/FileDataStoreFactorySpi
Caused by: java.lang.ClassNotFoundException: org.geotools.data.FileDataStoreFactorySpi
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: org.geotools.data.gen.tool.Toolbox. Program will exit.

Jan

On Tue, Sep 1, 2009 at 10:10 PM, Gabriel Roldan <groldan@xxxxxxxxxxx> wrote:

Hi Jan,

I may be wrong but I guess udig does not have a "generalize" or "simplify" spatial operation right now.

If you're using geoserver though, it may be worth giving a try to the "feature pregeneralized" datastore, which decorates any other kind of data store allowing the creation of a pyramid like geometry structure (using different geometry fields at different simplification levels):
<http://docs.codehaus.org/display/GEOTDOC/Feature-Pregeneralized>
<http://docs.geoserver.org/1.7.5/user/tutorials/feature-pregeneralized/feature-pregeneralized_tutorial.html>

cheers,
Gabriel

Jan Henrik Øverland wrote:

Hi list,

I have a multipolygon shapefile that is so detailed/big that when I try to load it into my web based GIS application my web browser crashes (even Chrome does).

Thus, I wonder if there is a function in uDig that makes polygon borders less detailed - without losing their shape totally of course?

Jan

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Gabriel Roldan
OpenGeo - http://opengeo.org
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