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RE: [Repast-interest] Help: Loading Shapefile Errors
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From: <bf...@ne...> - 2004-07-22 12:03:53
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Hi Ian and all,
Thanks for your helps
Actually there is a geotools.jar in the repast2.2 release,
I just use that part. In this case I can load some shape file e.g. tomszi=
ps.shp.
but has problems (attribue[7] got wrong type ,etc)with some others like a=
campus
map I am wokring on.
The code segment are=20
GisLayer layer =3D new GisLayer(LayerType.POLYGON, "shapefile");
ShapefileDataSource datasource =3Dnull;=20
AttributeType[] atts =3D null;
try{
datasource =3D new ShapefileDataSource(new URL(file));
}catch(MalformedURLException e){
e.printStackTrace();
System.out.println("PROBLEM with the URL of the GIS file supplied=
");
} =20
com.vividsolutions.jts.geom.Envelope env =3D
DatasourceHandler.getBounds(datasource);=20
xFact =3D env.getWidth()/worldXSize;
yFact =3D env.getHeight()/worldYSize;
xMin =3D env.getMinX();
yMin =3D env.getMinY();
layer.setBounds(env);
Feature[] features =3D DatasourceHandler.getFeatures(datasource);
=20
for (int i=3D0; i < features.length; i++){
DrawablePolygon dp=3Dnull;
dp =3D new DrawablePolygon(features[i]);
dp.setColor(new java.awt.Color(180+(int)(10*Math.random()),
180+(int)(10*Math.random()), 180+(int)(10*Math.random())));
layer.add(dp);}
return layer;
}
I look into the class API and found there is a bit different with the=20
geotools 2.0 RC0 version. Does it meanrepast has its own implementations =
of
geotools???
Also I also found some other errors when trying different way to load=20
shape files. In those cases, it even can't load any shape files
Such as :
Exception in thread "AWT-EventQueue-0" java.lang.NoSuchFieldError: NONE
at org.geotools.data.DefaultQuery.<init>(DefaultQuery.java:48)
at simulation.CampusModel.getGeoLayer(CampusModel.java:416)
at simulation.CampusModel.buildModel(CampusModel.java:87)
at simulation.CampusModel.begin(CampusModel.java:160)
Exception in thread "AWT-EventQueue-0" java.lang.NoSuchMethodError:
org.geotools.feature.Feature.getSchema()Lorg/geotools/feature/FeatureType=
;
at uchicago.src.sim.gis.PolygonAdapter.setFeature(Unknown Source)
at uchicago.src.sim.gis.PolygonAdapter.<init>(Unknown Source)
at uchicago.src.sim.gui.DrawablePolygon.<init>(Unknown Source)
at simulation.CampusModel.getGeoLayer(CampusModel.java:447)
at simulation.CampusModel.buildModel(CampusModel.java:87)
The relevant codes are=20
GisLayer layer =3D new GisLayer(LayerType.POLYGON, "shapefile");
ShapefileDataSource datasource =3Dnull;
AttributeType[] atts =3D null;
try{
System.out.println("So far so good before datasource created");
datasource =3D new ShapefileDataSource(new URL(file));
}catch(MalformedURLException e){
e.printStackTrace();
System.out.println("PROBLEM with the URL of the GIS file supplied=
");
System.exit(1);
} =09
System.out.println("So far so good before dfc created");
DefaultFeatureCollection dfc =3D=20
(DefaultFeatureCollection)(DefaultFeatureCollections.newCollectio=
n());
System.out.println("So far so good before dq claimed");
DefaultQuery dq;
try{
dq =3D new DefaultQuery();
datasource.getFeatures(dfc, dq);
}catch(DataSourceException e){
e.printStackTrace();
System.out.println("PROBLEM reading the GIS datasource");
System.exit(1);}
FeatureIterator fi =3D dfc.features();
try{
layer.setBounds(datasource.getBounds());
}catch(DataSourceException e){e.printStackTrace();}
while(fi.hasNext()){
DrawablePolygon dp=3Dnull;
Feature f =3D fi.next();
dp =3D new DrawablePolygon(f);
dp.setColor(new java.awt.Color(180+(int)(10*Math.random()),
180+(int)(10*Math.random()), 180+(int)(10*Math.random())));
layer.add(dp);
}
Thank you in advance
Bin
> Which version of geotools are you using?
>=20
> I've copied the geotools user list in which may get you a better answer=
.
>=20
> Ian
>=20
> Ian Turton, Director, Centre for Computational Geography, University of
> Leeds, Leeds, LS2 9JT
> http://www.geog.leeds.ac.uk/people/i.turton http://www.ccg.leeds.ac.uk
> http://www.geotools.org
> +44 (0) 113 343 3392 fax: +44 (0) 113 343 3308=20
>=20
> > -----Original Message-----
> > From: rep...@li...=20
> > [mailto:rep...@li...] On=20
> > Behalf Of bf...@ne...
> > Sent: 22 July 2004 04:46
> > To: rep...@li...
> > Subject: [Repast-interest] Help: Loading Shapefile Errors
> >=20
> >=20
> > Hi all,
> >=20
> > I am currently developing a small software to load and=20
> > display shape file.
> >=20
> > Now I can load and display the tomszips.shp as included in=20
> > the demo folder of repast 2.2 release.
> >=20
> > But when I tried to load another shape file,
> > I got following runtime error:
> > And I can not find any Attribute[] in the source code of=20
> > repast. That shape file can be loaded and displayed using=20
> > geotools 0.8.0,
> >=20
> > Can anyone please tell me why this happened and any=20
> > suggestion on that?
> >=20
> >=20
> >=20
> > org.geotools.data.DataSourceException: Illegal Feature=20
> > Exception loading data : Attribute[7] is of wrong type.=20
> > expected class java.lang.Float got java.lang.Double
> > at
> > org.geotools.shapefile.ShapefileDataSource.getFeatures(Shapefi
> > leDataSource.java:228)
> > at
> > org.geotools.feature.FeatureCollectionDefault.getFeatures(Feat
> > ureCollectionDefault.java:184)
> > at=20
> > uchicago.src.sim.gis.DatasourceHandler.getFeatures(Unknown Source)
> > at=20
> > uchicago.src.repastdemos.schellingGis.SchellingGis.<init>(Sche
> > llingGis.java:169)
> > at=20
> > uchicago.src.repastdemos.schellingGis.SchellingGis.main(Schell
> > ingGis.java:282)
> >=20
> >=20
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> >=20
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> >=20
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>=20
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