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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( y3 V2 N- J0 G+ ]! H- K
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* T3 m3 }! N; @7 K* S5 }; x0 R
1 C; v# q/ W7 j8 S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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+ U8 [) [. O) _' @/ c" t7 C感谢感谢4 i- t. }( ~: ], D) J
错误如下：1 I3 ?0 l9 D* _1 @6 J* n( n/ b9 M
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException& S2 T2 `* B' r& Y3 q
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
/ X2 d, o9 s* l2 A9 S4 w at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
0 \8 y4 O4 }) e: N% S6 _' W at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)+ J0 p! q; ^* L" d; o. M* y
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
: D8 y d* I* e; B9 R6 r. J5 e8 o at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)1 s. t+ w6 X, f6 q
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
9 D9 u7 a3 ]0 y; _ at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)/ F' V! V& N$ S1 i' [$ ]3 x
at java.lang.Thread.run(Unknown Source)
- r- e J; V- p! x' ^; SCaused by: java.lang.NullPointerException) A0 U7 E$ c5 Q( p5 f+ m2 \5 \
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)$ }6 }) {4 g" ?! ~# J/ K. T
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)* e; h8 b9 S% z; c
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
2 u# S! A, M& d) L2 B6 c5 Z at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56). b; I; S; x* {9 @' H4 A
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
$ j' j; p5 C2 O3 _ at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
! C/ A, `8 H/ G at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)4 h! V# b3 }' W1 P; n
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
; B0 C3 T) s+ F: i; ^' D at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85) B) {+ X' f: t* S. p& z
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
6 a/ F8 }) @, ` at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194): d& D% o6 i& Y6 P+ I6 U4 D
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
6 _" ^5 N6 z4 j$ { at java.awt.event.InvocationEvent.dispatch(Unknown Source) C8 f7 q! q6 G: W0 F# }9 J
at java.awt.EventQueue.dispatchEvent(Unknown Source)7 i/ J, x2 h5 b! M/ T0 d" W; c2 ]+ J
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
$ U* F% p7 q! B7 t at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)/ A" q6 J* `9 I* K* `
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
; U0 f* ?/ t, b1 y+ U at java.awt.EventDispatchThread.pumpEvents(Unknown Source)4 a% e! X: X, m) M9 o. [0 r
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)( u/ c( G8 w2 Z/ O
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
