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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# m5 v8 ^- L: @1 B1 ^) W2 @* V
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! |+ |' z! S; X8 i# e0 w) k# T- ~" u
3 X, q2 t, E" }- ~: k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
( G& Q% N5 @9 f/ i9 |$ H/ @! c& j3 x
感谢感谢
4 E' e: F6 N# y错误如下：
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
V* \/ G! }" v# S8 p at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)( T! |) m1 f6 _0 x7 I
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)! _$ Z9 K* ?6 o* ~# @
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)- S) v0 T# A. f: f# a' }
at saf.v3d.Canvas2D.update(Canvas2D.java:113)( _, z( @& m. V% V) B, o) ^
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)# Q) Q2 u1 |( p+ E
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
' L( e: P9 T, Z- b( j at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
( _, H3 r: x+ D( I at java.lang.Thread.run(Unknown Source)& n4 d+ F, l" B7 s- E( l
Caused by: java.lang.NullPointerException0 k4 l/ V, H* I6 ?& d
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
5 O3 X5 W Z5 c) }6 j) Q3 S at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
+ m5 G4 z2 {5 E. e# w% X% P at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)6 V0 g a* H+ t- \ F& J3 H
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)) Q! I/ G5 K+ {4 l6 o" t
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)# j" p0 }/ N* b h
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)- |# V. A$ Z7 z: r- W
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
: O6 f3 | p- Y; X x at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
. i9 f q+ o( H B at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)! `! g) y' n3 k H4 X6 G+ ~) A8 z
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
8 S8 ?& _3 Z) x0 e3 V at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
$ g. n$ {& o2 k& g0 j- z. ]& v at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)1 O' U- X X0 r
at java.awt.event.InvocationEvent.dispatch(Unknown Source)1 r: W; w* X# v4 T7 X* }/ j
at java.awt.EventQueue.dispatchEvent(Unknown Source)9 K+ o' a; R! H- G) w( ]
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
, W5 ?" f4 o2 L- z0 l at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
) m' Q0 e" e# N, Q/ L# q, H at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) V' R) v3 p' j, y6 C
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
- e& C7 P1 L0 g% s' L+ B at java.awt.EventDispatchThread.pumpEvents(Unknown Source)3 T6 P& O( K& |5 P' B7 F- B
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
