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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
+ {) A: W! \$ W* X1 S) j! @' s5 F9 Y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, z; x) M2 r! C0 }3 M6 j. b: h
, z& w9 s* g, j6 |( b% b$ E
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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! E: i4 _3 }+ s/ n感谢感谢
M* H& `8 ?" F3 S% p! c错误如下：
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
( C: X3 V% t7 u0 } at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)3 [+ m/ v$ O! D/ O$ |
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
, B# ?7 m3 D0 |/ W+ Y at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
/ ^" d! y7 Z: ~( F at saf.v3d.Canvas2D.update(Canvas2D.java:113)
7 D8 o/ _5 Z2 Y3 M/ d5 D) s8 F at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)0 j7 f. t# @5 J
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
6 ]( H% F" `7 Y7 _: J3 m) v0 w at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
2 h6 y5 Z2 l, Y5 k at java.lang.Thread.run(Unknown Source)
' e3 r2 F* n$ ]8 S! yCaused by: java.lang.NullPointerException
( j& u8 n2 O4 U+ z+ ]6 k& o9 o at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130). Y9 \( C/ K: s. {. G
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)$ Y! B; d9 `, X$ W" O2 k& ]
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
% I* S: W F1 d( y5 i+ R+ D3 A at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
* C# V0 Z7 y0 |2 t a# }5 S at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
' m! {8 m; T$ e. }- Q) N% H! K at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
* Z: X. | t6 H7 X! g+ S at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273). |1 [% e7 m" Q5 x6 ~
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)2 m( O0 [: C/ @9 G# ]4 x2 `
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
( i6 ~2 h: B& b2 [$ I at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)) W1 K! p7 u) J- t" P
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194) t2 {7 ?& \& t" t7 _/ q, f# t' o5 l
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
2 G" _' {) l0 e4 F1 \2 W; J; ` at java.awt.event.InvocationEvent.dispatch(Unknown Source)
; |1 s; |. u/ }* P9 J" O9 t |$ {4 h at java.awt.EventQueue.dispatchEvent(Unknown Source)2 Y$ z0 v7 n% c# @: |: [9 i
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)2 o- g3 L# q9 E& } W: Y0 u
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
! }$ J9 N2 n9 V) _ at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)( ^# O! J* T r4 f/ L
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)- B4 j: z, Y0 i/ F. U6 ~* R* K" [
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)4 @& x/ e j8 @5 q- u
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
