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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
5 i/ l/ X$ z$ i# f5 u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% P. S1 X8 p, _. A+ Q
6 T6 d* q$ o q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
9 b, u. y6 B6 M: j$ ]
* \, D K5 I! ^2 Q6 ]感谢感谢
# y, b; Z0 `" ]! w错误如下：
x1 f m% N a% z* D% E" t i8 Q+ c: ]% f
Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException o+ I0 }: v) K1 m3 Q
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)) {" \4 u4 X$ v6 k+ I& s
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)3 K9 T" e5 ^5 w; S9 d
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)+ A2 D5 f1 \( Z+ q) F
at saf.v3d.Canvas2D.update(Canvas2D.java:113)1 f$ i+ s. r S/ O
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)$ f( I2 f3 ?+ v5 N n) N9 h
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)) y$ z& t* x8 ~4 b* N/ h
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
3 k4 J3 v# c- K2 _" q" w at java.lang.Thread.run(Unknown Source)
% p0 K; [0 D" Y2 n/ Y' oCaused by: java.lang.NullPointerException
! `* F. ?3 D) n5 \ at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)) k0 R8 l, P6 R3 C# n% |
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)% z4 m4 q1 ^+ ^, n5 b
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)$ J9 `: h' V0 w# F, P$ p8 q$ i
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
0 q/ O& _9 n/ f* U" y, d% N+ S at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
}( q* x' ?: o! z at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)9 R$ g* |, i7 W& A+ ~+ T
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
$ z5 ]6 P9 q$ R5 O at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
* p5 |7 {9 K) |5 N0 w at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85) x2 v, n! }2 [) ]' n
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)3 g T& E* X$ N# Q, t
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)5 d4 @+ F' j* K7 G( I. u
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452). x& p! B9 |3 @' i, Z* H( P# G0 M
at java.awt.event.InvocationEvent.dispatch(Unknown Source)+ C2 M. o S0 X! K$ e4 j( a
at java.awt.EventQueue.dispatchEvent(Unknown Source)
) L D. H+ c1 f7 q at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source): \/ Y% t% J# ^$ ]% c
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
+ z- F" `$ V, o: P2 \0 t at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)6 F5 K# ?5 U$ G) D+ D
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
1 U/ [+ s0 S) ]2 [6 G7 [9 l* O6 k at java.awt.EventDispatchThread.pumpEvents(Unknown Source)* g% t/ r$ A0 \
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
