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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
- b2 J7 e7 T6 m+ R/ R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4 h! M! e _/ ]+ k
) X. Y& a# i! m* \! b
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2 T; |7 t, `6 B# A
3 X" U; t$ w7 O感谢感谢
! k& H& r$ m2 R$ o$ l错误如下：' V/ x/ f0 j, M5 \) A$ t5 w4 b& m
8 g5 `3 R4 B5 O L8 m- s8 y& T$ E- t* }
Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
3 d3 v9 s5 Z# C L5 k# X at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)& e/ r; J1 X: t, y
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
1 m, N) U/ x \- L" \ at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)6 O8 J3 H! @6 Y! {9 _6 S
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
1 M7 L8 q l$ s at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
. @9 W/ T/ f6 x3 c5 z at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
( Q$ @& { z! F7 T+ U5 n# t! a at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
; z" B; `! g1 b. ]% |3 r* J+ c( E, U at java.lang.Thread.run(Unknown Source)
& Q* K" Z. x5 x8 s8 x+ c* hCaused by: java.lang.NullPointerException
; u/ ?+ i; M6 R& z( m { at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130); ?6 p7 y% E- b j% S; t& H2 L/ M
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)$ i/ H- f# Y8 P0 B) l( p, D3 Z
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88) _9 p) j. e R
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)/ R: o W. Z, T. B: P! D
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)0 u7 o: l2 n7 ]( w+ F, |9 P
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)& t2 m8 x: x$ E4 C: F7 h3 v2 R
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)" b# x7 Q0 }( G: E; R6 m9 Y
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
. @; B/ ?% X* o- i4 m! }5 i* R at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)2 j, l+ a: c( n1 x |
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)$ ?- z7 m! D Z
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
# F7 U/ y' Z4 b; _, {: g at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)# B% o5 M. J% R9 b, Z7 P- N
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
$ }# h( B9 a4 j0 U0 f at java.awt.EventQueue.dispatchEvent(Unknown Source)
% Q* @1 X) E" n7 n: f at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
& c! h/ E8 N/ a* c at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
! V' V! y2 G- f# R6 ~ at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
7 _% X. |. H. }1 Y, g at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
# i7 i/ ]: Z. f% ?# Y- T9 e at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
. c& j6 r8 P' y: Y at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
