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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& F6 T, o( J: y2 T4 @( x4 ~
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1 D4 u X& Q4 q" n: @0 S! K) z0 j& t/ D0 u6 r
) B/ C) q' u* _- U* g
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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感谢感谢
; ^9 a4 c8 w# B! W5 @错误如下：) u ?. u& V- O8 L L8 m
+ d* v% ?" V3 z, FException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
! Z/ n% ~$ l& } at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
K1 _( ]1 \% q- A at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)7 Y2 p: A7 T; c1 K9 U# C9 W" f+ Y
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
! k0 W% X! R4 d- S6 d at saf.v3d.Canvas2D.update(Canvas2D.java:113)
* [2 p! t/ E& x! s+ f9 U at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)' U. b. B" x/ E% ]
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
4 Q1 |: C1 N0 y7 e4 @$ n9 u \% g2 j0 X at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)+ {" c7 M0 U* \
at java.lang.Thread.run(Unknown Source)
# `; J; ?8 r# `Caused by: java.lang.NullPointerException
3 [$ q1 W# y" r: D at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)( X: I1 ?+ y5 t7 F3 c# Q
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)9 j# K' q1 ?/ f' B2 Y; R6 L; M4 y) L
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
$ H7 f4 s* Q+ r( t at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)6 q _' I6 ?& W2 H
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
& s! }& u9 b, ^9 i6 k P at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)" _4 M+ ]# w5 n r; s; Z' P7 ~
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
- E$ G$ `* U6 i6 O, n at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)5 ?1 K0 |& A+ G, Q U% G4 {, F% ^
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)& j4 D' ]& t; R) Z! E( q
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)8 W1 e! u! U. Z" C, b
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)! N$ ^! Q( {! K* b" P' |
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452) S, h. |& g; B7 R4 T# m
at java.awt.event.InvocationEvent.dispatch(Unknown Source), \: b6 v: P2 R2 A5 |* U/ C( j6 A
at java.awt.EventQueue.dispatchEvent(Unknown Source)2 _9 v i' G2 m
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
! q" v* O. s) w% L at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)' j; P( G5 ^9 I/ Z; r6 t
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
2 n [4 |. s8 ~6 {4 m0 W at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
- T$ [1 L1 e( ^: ^2 T4 |4 {( s at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
0 [; a2 c0 B2 n at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
