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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) z1 N- r; M; a
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) E& Y) J8 O' L
+ w) P# P: F& g4 v; c 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
4 o! y- _* O: P, K
% N A% s h6 M! o2 ]感谢感谢
% b* s% f! @* R* R0 e) r8 r错误如下：
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7 G7 j- o+ s R! t2 ?+ M" JException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException2 ~0 l/ `% g& R. i
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
/ ]7 z8 C9 H* \/ g2 X5 o( m at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)' `& L5 h$ f6 K' R
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
1 W/ C5 l `( I l at saf.v3d.Canvas2D.update(Canvas2D.java:113)
- T7 w6 S5 D# K, l& V5 V at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)1 Q7 q" _0 z5 p. t8 J7 n& I# U
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)! z+ H" g0 a4 C/ ^
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)/ b4 B8 G6 q- Y6 U
at java.lang.Thread.run(Unknown Source); L7 v4 P( l+ y4 E# \
Caused by: java.lang.NullPointerException% U* p8 ~7 i) t2 c7 x' m
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)2 u, t+ I& H, h" v
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
4 T; _3 h+ B8 @1 B at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
# U' N& o$ o8 X at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
) g; V* W {: S" N$ G% K9 h$ e# G at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
7 n4 b2 y6 Q; _" z at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58): }6 Q$ V+ K& ?! b
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)! V1 J/ S! [( c7 n+ t1 U
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)& b+ X8 I& n' |4 B$ a4 p
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)- d# l( L) I; W
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
& M6 e1 O8 P" R at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194), x1 t l1 S( @5 L( D# X: N
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
9 ~8 |$ x. f2 P6 P. B+ W at java.awt.event.InvocationEvent.dispatch(Unknown Source)
0 L0 ~, D$ Q' n7 Z6 J- u at java.awt.EventQueue.dispatchEvent(Unknown Source)8 j% o2 A2 U; H) U/ ?0 x
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)# R) B( I% h0 t o6 y3 k0 K6 F
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
/ G4 e9 i7 W6 q) }$ d7 T9 o. b at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)3 W6 ~* @. k, `8 Q5 B. B9 o
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)7 T$ C8 k( n; r# ]* A3 E
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)' @6 C- I" E/ P' D- a8 k
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
