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Dear List,
I use geotools 2.5.5 under Suse Linux 10.2 64Bit and within the netbeans
IDE.
I try to get a simple code running, but always get errors by
initialization the epsg system.
1. Is there a explanation how this mechanism works inside of geotools.
2. I cannot find any documentation and to understand your plugin system
is not easy.
3. What is the minimal set of jar files to use geotiff and shapefiles.
At the moment I try to do this
public class Main {
public static void main(String[] args) {
// --- look what is inside the class path ------------
String s = System.getProperty("java.class.path");
String[] f = s.split(":");
// --- try to find the jar for coordinate system -----
System.out.println("classpath is:");
for (int i = 0; i < f.length; i++) {
if (f[i].contains("epsg")) {
System.out.println("********************");
}
System.out.println(i + ": " + f[i]);
if (f[i].contains("epsg")) {
System.out.println("********************");
}
}
// ------ try to use the epsg definitions -------------
System.out.println("\ntry to decode EPSG 4326:\n");
try {
CoordinateReferenceSystem crs = CRS.decode("EPSG:4326");
System.out.println("coordinate system is:\n" +
crs.toString());
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}
The execution of this code fails and give me this hints
classpath is:
0: /home/huckfinn/Projekte/gtools-test/lib/geoapi-2.2.0.jar
1: /home/huckfinn/Projekte/gtools-test/lib/gt-api-2.5.5.jar
2: /home/huckfinn/Projekte/gtools-test/lib/gt-coverage-2.5.5.jar
3: /home/huckfinn/Projekte/gtools-test/lib/gt-cql-2.5.5.jar
4: /home/huckfinn/Projekte/gtools-test/lib/gt-data-2.5.5.jar
********************
5: /home/huckfinn/Projekte/gtools-test/lib/gt-epsg-wkt-2.5.5.jar
********************
********************
6: /home/huckfinn/Projekte/gtools-test/lib/gt-epsg-extension-2.5.5.jar
********************
7: /home/huckfinn/Projekte/gtools-test/lib/gt-geotiff-2.5.5.jar
8: /home/huckfinn/Projekte/gtools-test/lib/gt-jdbc-2.5.5.jar
9: /home/huckfinn/Projekte/gtools-test/lib/gt-legacy-2.5.5.jar
10: /home/huckfinn/Projekte/gtools-test/lib/gt-main-2.5.5.jar
11: /home/huckfinn/Projekte/gtools-test/lib/gt-metadata-2.5.5.jar
12: /home/huckfinn/Projekte/gtools-test/lib/gt-referencing-2.5.5.jar
13: /home/huckfinn/Projekte/gtools-test/lib/gt-render-2.5.5.jar
14: /home/huckfinn/Projekte/gtools-test/lib/gt-sample-data-2.5.5.jar
15: /home/huckfinn/Projekte/gtools-test/lib/gt-shapefile-2.5.5.jar
16: /home/huckfinn/Projekte/gtools-test/lib/gt-xml-2.5.5.jar
17: /home/huckfinn/Projekte/gtools-test/build/classes
try to decode EPSG 4326:
29.06.2009 21:16:00 org.geotools.factory.FactoryRegistry scanForPlugins
WARNUNG: Can't load a service for category "MathTransformFactory". Cause
is "NoClassDefFoundError: javax/measure/converter/ConversionException".
29.06.2009 21:16:00 org.geotools.factory.FactoryRegistry scanForPlugins
WARNUNG: Can't load a service for category "CRSAuthorityFactory". Cause
is "ServiceConfigurationError:
org.opengis.referencing.crs.CRSAuthorityFactory: Provider org (...)
org.geotools.factory.FactoryNotFoundException: No factory of kind
"MathTransformFactory" found.".
sun.misc.ServiceConfigurationError:
org.opengis.referencing.crs.CRSAuthorityFactory: Provider
org.geotools.referencing.factory.epsg.DefaultFactory could not be
instantiated: org.geotools.factory.FactoryNotFoundException: No factory
of kind "MathTransformFactory" found.
at sun.misc.Service.fail(Service.java:120)
at sun.misc.Service.access$200(Service.java:111)
at sun.misc.Service$LazyIterator.next(Service.java:276)
at
org.geotools.factory.FactoryRegistry.register(FactoryRegistry.java:829)
at
org.geotools.factory.FactoryRegistry.scanForPlugins(FactoryRegistry.java:773)
at
org.geotools.factory.FactoryRegistry.scanForPluginsIfNeeded(FactoryRegistry.java:808)
at
org.geotools.factory.FactoryRegistry.getServiceProviders(FactoryRegistry.java:195)
at
org.geotools.referencing.ReferencingFactoryFinder.getFactories(ReferencingFactoryFinder.java:176)
at
org.geotools.referencing.ReferencingFactoryFinder.getCRSAuthorityFactories(ReferencingFactoryFinder.java:451)
at
org.geotools.referencing.DefaultAuthorityFactory.getBackingFactory(DefaultAuthorityFactory.java:88)
at
org.geotools.referencing.DefaultAuthorityFactory.<init>(DefaultAuthorityFactory.java:69)
at org.geotools.referencing.CRS.getAuthorityFactory(CRS.java:182)
at org.geotools.referencing.CRS.decode(CRS.java:420)
at org.geotools.referencing.CRS.decode(CRS.java:348)
............
Thanx
- --
Alexander Weidauer
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/___/_/ \____/_____/ |___/ /___/_/ /_/_/ |_|
Institut für Geodatenverarbeitung
Informationsdienste, -modelle und -applikationen
Tel.: 038333-527
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