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最近在用repast s 建模做供应链管理的问题，对于repast s 中网络结构的使用很不了解1 @5 f. P; o+ a# ~" v* `
写完代码之后编译出现错误，应该是显示方面的错误，我实在弄不懂
% |+ n- `+ F% {( S
) i5 q0 j- Q* _0 ~0 d, Z" N* C有没有哪位牛人帮我看看错误，或者给我个适用network结构的demo让我学习下3 c3 `9 i8 \3 {
. Z9 X5 [! M9 {* j8 C8 K感谢感谢' g& W" r% c) `" o: H( W
错误如下：
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7 c; H! ]- V9 _- w7 Y5 u- kException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
. @+ `+ L6 `# G5 `- @ at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271) b+ E' O5 i$ k$ v
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
) ~' o( }! \2 L4 Y5 n at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
2 e5 X! F1 ?" g$ z/ e1 T- ^' S at saf.v3d.Canvas2D.update(Canvas2D.java:113)# V8 f9 |7 I9 C3 E+ C
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
6 p: l S8 H/ P9 v2 J4 \ at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
; z. ^7 v! W# Z2 v9 r$ j at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)8 E8 T5 e; U. x G, M) M
at java.lang.Thread.run(Unknown Source)1 g0 {4 Q: {0 ]* r" P! o# r2 U
Caused by: java.lang.NullPointerException- f2 t) r% _: i+ y; s1 [
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130), v' C9 O4 D/ L8 ?( y. c
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
* }/ w# D" |% C' G at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
$ g) a- s) W2 y: h5 {0 o' A at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
' ^6 F# `3 F8 j at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
: j) @' k7 q: [ at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)& T* Y$ r* @ d3 N% N3 i
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
! n, p' R) W' t$ M at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)- ~, |9 C) w) D- T; ~1 e) l
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
8 L. z% x* W+ L4 e: R at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)0 N0 a& k2 b& {0 c$ D
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
9 B R, y& d0 u at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
( e+ l6 |4 f8 v% g) T at java.awt.event.InvocationEvent.dispatch(Unknown Source)$ }: ]' d: A$ b0 q
at java.awt.EventQueue.dispatchEvent(Unknown Source)2 N' P2 P* L- k) I
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
) y/ _( A6 @1 v& X" ]! O: j at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
9 }, [# G1 P& u( m T at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
& `- o9 @& Z9 k; o at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
2 r3 o: m$ E2 v$ k at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
9 A2 e1 M% V4 Q4 [ at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
