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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7 m7 o7 l, b6 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5 I, K% k( F* G, p# z" t* o
9 h% M8 u0 n1 R Q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7 J; n+ ^8 \; O+ S7 E& I$ n4 J
) I4 A( F. o5 |; O6 K' S6 _; W
感谢感谢
: G7 y" h" F1 `6 K3 p) ]; F错误如下：6 c d5 f; M/ M! z4 q) g ?! b
7 c* a5 n- x, Z6 g8 |4 }% FException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException4 E7 `" o* c# m" ?0 [' c: |
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)% ?0 F6 I0 F, g: p5 k. i; c
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
5 Y* F# h9 V/ N O A at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
* `: f/ ^: G' R# i9 _, z at saf.v3d.Canvas2D.update(Canvas2D.java:113)
: t% V2 [1 N8 Y1 Z7 Y at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358), ^% D! T' X9 o
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)) r; C( d! G! h& D+ |. q7 H1 V) g; L
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46); e; g* B* G t; q8 ^
at java.lang.Thread.run(Unknown Source)7 F! j( T }' ^7 J& r; A
Caused by: java.lang.NullPointerException
& S6 V L( `6 x, J at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
; [3 d! O1 {6 }0 X at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)6 x$ H2 C( [( W, `, w9 J& \
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
& g, I, [$ W% ]+ } at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
* A' J3 D4 {- E. I at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439) U- @ B% F) N% j3 L8 z
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)3 u$ s9 W, E8 ~' B6 ^, W/ X. s4 D
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
7 W: j+ n& U) r7 X at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)8 D7 o$ x5 a# e2 h
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)5 R0 q9 c) \& x3 p4 j& I. F
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)3 Y6 ^8 H2 P% h* S1 M; Z! @
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
3 K, v2 _9 \, g0 h( @3 O* G at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
M4 C- Y" S) `5 o, F8 y at java.awt.event.InvocationEvent.dispatch(Unknown Source)1 H, p& k2 h8 x) M, u4 E4 L6 S
at java.awt.EventQueue.dispatchEvent(Unknown Source)0 b3 z" F% r# a
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)3 `0 e3 X% V6 ^: l4 d) ~
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)) b0 e l; @ B, o" [8 y/ P* s. \
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
; G6 i# ]0 {$ u& s at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
, e6 @3 r$ u1 I1 m at java.awt.EventDispatchThread.pumpEvents(Unknown Source)5 A6 P p& u ]) q* G- s# @
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
