java - 无法使用 geotools : Invalid empty measure 从naturalearthdata 打开大多数形状文件

Question

发现我无法打开大部分shape files from NaturalEarthData使用 GeoTools 11.0。

我正在运行教程"Maven Quickstart"它加载给定的形状文件并显示它。 Swing 架内部出现错误，用

打开

JMapFrame.showMap(map)

线。

错误如下:

SEVERE: Invalid empty measure '', was expecting a number, eventually followed by px, m or ft
java.lang.IllegalArgumentException: Invalid empty measure '', was expecting a number, eventually followed by px, m or ft
    at org.geotools.styling.visitor.Measure.processLiteralExpression(Measure.java:97)
    at org.geotools.styling.visitor.Measure.<init>(Measure.java:63)
    at org.geotools.styling.visitor.UomRescaleStyleVisitor.rescale(UomRescaleStyleVisitor.java:92)
    at org.geotools.styling.visitor.UomRescaleStyleVisitor.rescale(UomRescaleStyleVisitor.java:170)
    at org.geotools.styling.visitor.UomRescaleStyleVisitor.rescaleFill(UomRescaleStyleVisitor.java:211)
    at org.geotools.styling.visitor.UomRescaleStyleVisitor.visit(UomRescaleStyleVisitor.java:204)
    at org.geotools.styling.PolygonSymbolizerImpl.accept(PolygonSymbolizerImpl.java:140)
    at org.geotools.styling.visitor.DuplicatingStyleVisitor.copy(DuplicatingStyleVisitor.java:471)
    at org.geotools.styling.visitor.DuplicatingStyleVisitor.visit(DuplicatingStyleVisitor.java:278)
    at org.geotools.renderer.lite.StreamingRenderer.rescaleFeatureTypeStyle(StreamingRenderer.java:2464)
    at org.geotools.renderer.lite.StreamingRenderer.applyUnitRescale(StreamingRenderer.java:2325)
    at org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRenderer.java:2011)
    at org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:837)
    at org.geotools.swing.RenderingTask.call(RenderingTask.java:106)
    at org.geotools.swing.RenderingTask.call(RenderingTask.java:41)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)

Answer 1

我今天遇到了同样的异常，并通过使用摆脱了它

Style style = SLD.createPolygonStyle(....)

而不是

Style style = SLD.createSimpleStyle(featureSource.getSchema());

希望对您有所帮助。