Unfolding GeoJSONapp example - error class not found

Contributed Library Questions

v.k.

Unfolding GeoJSONapp example - error class not found

in Contributed Library Questions • 1 year ago

I'm trying to run this example form unfolding library. But I get this error.

Exception in thread "Animation Thread" java.lang.NoClassDefFoundError: org/json/JSONException

at GeoJSONApp.setup(GeoJSONApp.java:63)

at processing.core.PApplet.handleDraw(PApplet.java:1608)

at processing.core.PApplet.run(PApplet.java:1530)

at java.lang.Thread.run(Thread.java:680)

Caused by: java.lang.ClassNotFoundException: org.json.JSONException

at java.net.URLClassLoader$1.run(URLClassLoader.java:202)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(URLClassLoader.java:190)

at java.lang.ClassLoader.loadClass(ClassLoader.java:306)

at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

... 4 more

I have several others examples running, so i believe the things are well installed. here the example code as it is.

Any idea?

btw great library!!! love it.

import de.fhpotsdam.unfolding.mapdisplay.*;
import de.fhpotsdam.unfolding.utils.*;
import de.fhpotsdam.unfolding.marker.*;
import de.fhpotsdam.unfolding.tiles.*;
import de.fhpotsdam.unfolding.interactions.*;
import de.fhpotsdam.unfolding.ui.*;
import de.fhpotsdam.unfolding.*;
import de.fhpotsdam.unfolding.core.*;
import de.fhpotsdam.unfolding.data.*;
import de.fhpotsdam.unfolding.geo.*;
import de.fhpotsdam.unfolding.texture.*;
import de.fhpotsdam.unfolding.events.*;
import de.fhpotsdam.utils.*;
import de.fhpotsdam.unfolding.providers.*;
import processing.opengl.*;
import codeanticode.glgraphics.*;
UnfoldingMap map;
void setup() {
size(800, 600, GLConstants.GLGRAPHICS);
smooth();
map = new UnfoldingMap(this);
MapUtils.createDefaultEventDispatcher(this, map);
List<Feature> countries = GeoJSONReader.loadData(this, "countries-simple.geo.json");
List<Marker> countryMarkers = MapUtils.createSimpleMarkers(countries);
map.addMarkers(countryMarkers);
}
void draw() {
map.draw();
}

Replies(2)

tillnm

Re: Unfolding GeoJSONapp example - error class not found

1 year ago

Seems like you are missing the json library. In an old version of the Unfolding for Processing download we did not distribute that file, so you either need to re-download the current zip file, or go to https://github.com/agoransson/JSON-processing and put the jar file into your library folder yourself.

Let me know if you have that file and you still get the error.

v.k.

Re: Unfolding GeoJSONapp example - error class not found

1 year ago

Hi tillnm, Thanks for fast reply. That was easy... i should have figured out :) Every thing worked with the library in place. I tried to run the "choropleth" from github but could not find the data files "countries.geo.json" and "countries-population-density.csv", are they available? I have some more questions but i think is better to make another post. Thanks and congrats for this amazing library.

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