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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' d5 @' T& B! A" D& r/ ]& b- t
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; T |3 e8 b* O5 q6 D8 w
4 G5 L, [% e! ~+ I) v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, r. u4 e/ g7 {+ a" g
9 A& h Q( z( X, x感谢感谢9 [6 Z6 a& f7 D7 _
错误如下：
2 m& V. e v9 S |" G* [: [3 _& x: R$ b6 f/ O! m8 Q
Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException; h' ^4 Q/ N) Q E* k
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
5 e' M$ l+ Y. I: K8 x. i9 W4 w at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)7 M/ ?" O/ W. g3 V' }+ g0 q
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)- _( p, h! T; @+ X7 Q
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
2 ?/ E5 q: Y% B) \ at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)! R( y9 f8 _% |, G4 c! D0 P& _
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
0 L, x9 P7 V" s; x( M2 }' S1 J0 d at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46), `, W; F1 z0 K1 m$ f
at java.lang.Thread.run(Unknown Source)
8 p9 H% ?6 h8 f# GCaused by: java.lang.NullPointerException8 s$ s5 t; {7 b; |
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
1 P& _$ l2 F- b6 k0 ~ at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)( C5 Y$ h1 A. x2 [; p
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
0 Y1 j9 r/ F& U$ }; [1 T at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)' f7 [9 L/ C3 D$ \& [- Q0 }
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439) t5 G. x! H' I0 v
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
7 K6 D: l* q; ?1 I) |) L at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273) k8 f z r! X `5 \2 L
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)+ D. B( ]& H( E6 \$ K" {
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
) P) }3 u4 S6 b at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
# I/ K& x% R* y3 ] at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
, y% x& d; D- M/ A at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)# r/ ^6 ]" j4 ]- b* A
at java.awt.event.InvocationEvent.dispatch(Unknown Source): q2 z5 \; D, j9 B6 y6 B4 E
at java.awt.EventQueue.dispatchEvent(Unknown Source)* F0 O& H% C- ]( W s8 p
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source). b/ ]4 R* [: u! m
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
; m7 v4 L5 g' `( W8 J4 z- T& W at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)) x! p6 {3 C9 o4 T
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
. m3 a- S) Q3 l+ o3 N" r7 z at java.awt.EventDispatchThread.pumpEvents(Unknown Source)! q4 c) v: U' E
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
