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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
8 Z% P6 Z J! v0 X' C7 \1 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
- t- b% x, Q* C: r: a
, F* c0 @8 c' _- E; }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* q. i6 i) s0 K- {# E D
" I/ D2 f# C1 E; K# l3 b3 S( ?感谢感谢
! \/ {9 S; Q& I5 m8 y错误如下：( l9 V1 K# k) I, A. b4 W
) E/ G ?7 L2 b# T' lException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
4 }1 Z- P: e2 O' M# [. L at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271). `' @- ^) T/ B: C
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
/ v; J% R B* c, L5 q! W at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)" u9 N c# }0 u6 y& u% D
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
" G* b! g- {2 E! x! f+ H- A at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
. P) Z2 ?0 [0 W9 s3 q at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)8 o) c% C2 z1 W! T& p; q3 q
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
' n( H4 o* ~: s2 R: x% p7 Q8 \% t3 o at java.lang.Thread.run(Unknown Source)
# b4 h- x: P6 C- a1 Z: HCaused by: java.lang.NullPointerException' S d& D3 M, M" v: g" F
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)8 `7 A( }- E2 l0 W. R& o
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
6 Q O5 o8 H6 u% j at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)7 Z9 I9 L3 ~# a+ m& b* V b: t) c
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
( g H T* d5 r/ _. O8 E% P' q$ [ at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)) c$ R5 K# u. X G9 u
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)" T# q6 J, W1 L0 z* X
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
! ? p( }$ |6 ?$ T) }, @ at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
( g- C, e6 d$ D' Y6 g% t; @ j at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)9 W% ^ l; {8 W) u
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)* m8 H, W* U D, s- I' J
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
* `8 D/ T8 U& R. ]: f at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
4 M O C& O! t2 W/ C0 |2 O. K' F at java.awt.event.InvocationEvent.dispatch(Unknown Source)
q/ H. s7 S$ \+ T at java.awt.EventQueue.dispatchEvent(Unknown Source)7 G/ d) ~+ t( |: v
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)5 R# a% ^5 w" ^% F/ J9 `5 }
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)4 H9 l* y- T8 v, S2 ]2 x" Z
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
5 u3 u! `6 D% m o7 p6 a- u at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
3 G* ~1 d! z- m! r D7 o at java.awt.EventDispatchThread.pumpEvents(Unknown Source)+ h i# i1 g' }& ?& E
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
