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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* W% ?, ]* G. c" E8 I* M) R
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
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* R$ X+ W8 H+ Q. h$ ^- f! N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
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$ [- J% a! |# M. N, ^- E2 k感谢感谢4 u! f* Q. ]! n
错误如下：( q6 i$ s5 L" \) J1 ^+ C: D
! {4 E2 V) _, ]1 d0 WException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
- P9 C; F0 h, c9 @0 u) F3 A! S at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271) S l. I* n4 W& n6 |4 n& }
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)% O; m+ a4 C$ k/ _( n
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)- b1 Q" x4 F& r- h
at saf.v3d.Canvas2D.update(Canvas2D.java:113)) P" j3 D0 V @. P
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)- T% V, j$ b* @$ I9 O& J! H
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)5 D& B1 K. e1 N4 R4 }
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)8 e% N& J( ^9 v' O) d, t- _
at java.lang.Thread.run(Unknown Source)
" y, ?' r. i$ c/ G9 k, E( zCaused by: java.lang.NullPointerException
- s7 @# E5 t) q: s. ^7 z5 T at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
" G8 n( |. m6 g% r4 Z0 M; I% Z at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)( ~, V O! q9 i7 N$ n1 e# c- u% H
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)/ l- G( U, ?+ ^, D
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)! N8 \& x% {7 p
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)- \$ ?/ k- }1 v; f* ~
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
5 S2 W' ` E. R+ } at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)- w2 N. G9 Q$ Z, j1 I. J! q' b2 J
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)% X/ U) B0 ?, }5 A9 K+ S, W
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
$ j$ n0 R1 u; @& \' p' C% B at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)/ n. ^4 y" |: h: Y& F
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)( b1 {7 r5 S5 P' R5 _
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)4 b% _( S: U$ _3 b: D: V5 H- V
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
/ m. H" L5 K0 r0 ~% V3 z at java.awt.EventQueue.dispatchEvent(Unknown Source); b3 |) x5 S% i* K& J# H) P" z
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
) p+ w! H, X) s( [) u at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
) [$ s" @% m% r# B. H8 j4 s at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)% y% `# F' x# t7 ~: o$ e
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
& z- }& q' n* E) g7 N5 {: V at java.awt.EventDispatchThread.pumpEvents(Unknown Source)4 A0 r' t9 N3 [3 ]) d
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
