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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
! s8 |, X- {8 b. K/ h2 S! z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
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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
2 d: ~9 Z% d: F* y1 e1 s% h) j错误如下：7 a6 P, R% d8 H# ^
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException, |/ i8 h* ?. d" \/ i# K
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
, g# i3 Z7 T' h* _4 J+ y4 \2 s at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)+ t a6 E, V g2 f. D
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)" v7 k0 J. c4 z# ?7 ]
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
. B% z. |: {# k1 N at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358); m# u* E' ]0 X4 f
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
3 X: U! S% ^- ] at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)0 \9 I% N9 q" ?; w2 d
at java.lang.Thread.run(Unknown Source)0 c" I/ M [. N- c- A# Y5 \' x
Caused by: java.lang.NullPointerException9 T ~2 c$ P4 r$ L" q( \( n1 t
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)0 _/ m8 i; P1 V$ M% y8 }9 b
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
- H9 D& C9 A, h2 Z0 F at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)5 B; V$ a3 G2 X
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)0 T% S6 t; T4 J7 @8 f- y0 m
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
1 F% Z7 m; Y) y) p at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
7 T, u9 j9 ]. H( M& m at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)# F7 K* x' z: ~3 m) k( Y- c0 D7 Q
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
( h* y% c3 o) u' x5 |5 E$ T8 J- ^ at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
3 I9 T- t! t7 [( w4 L3 h# A$ Y at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
; E' n g* Q: J* r$ A3 v at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)2 m$ `& p5 y+ H1 j% |+ Q
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)8 ]: F- O2 o4 ], S8 m8 Q# Y- ?+ Z6 k
at java.awt.event.InvocationEvent.dispatch(Unknown Source)- X0 ^# y5 T" p( y: v1 J( P
at java.awt.EventQueue.dispatchEvent(Unknown Source)6 Y; n' D/ w# y' F0 `- j1 J
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
3 W7 U1 w z/ `/ }0 e( ^5 ^ at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)' w4 F/ ?( \, v6 K/ S6 E' r' d' _
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)! }, o" e' R# j
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)8 { l. [! _/ K" X9 \1 g
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)! |% C6 O$ \. h; |1 D. C& I
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
