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[求助] repast s 建模中遇到的网络结构的问题

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发表于 2011-8-14 15:50:58 | 显示全部楼层 |阅读模式
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- O3 G0 O2 v. {% a
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8 W5 l% c6 T: i+ I) b2 W

( S5 E! X% a& }3 t; Z$ @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# ^/ N8 }& @. U' `+ Y* [
. i+ Z+ r3 c- J  B* v7 t, [( J) p# b/ @
感谢感谢
3 j: C% l1 A  L& x1 z错误如下:9 K) C+ [3 @% W% w! i
% C# `) d+ K1 V& S* ^
Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException9 C1 X6 ?8 g' R
        at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)9 \5 i: P/ a  H2 s2 ^% s( I
        at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)3 I* w2 {$ t' C4 m8 w+ O' u* V
        at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)% z7 D  m1 x) c# `1 R
        at saf.v3d.Canvas2D.update(Canvas2D.java:113)# f) l* e. K/ A
        at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
4 y4 B: |( {$ D% z        at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
5 m3 A5 m8 r2 l        at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)& S4 O8 R$ y* ^9 W$ D6 s- q- C
        at java.lang.Thread.run(Unknown Source)6 J) ?+ [+ ^. e0 F9 O0 b
Caused by: java.lang.NullPointerException8 G- L2 Z5 r$ Y5 Y8 c0 E- X! O
        at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)$ T4 G& B6 v# `7 c9 Q$ M& v5 T9 J
        at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
2 S, c! B4 |% L$ w3 |$ X        at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88); ?: t8 k4 \/ L4 B" k( Y
        at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)# d6 q: I5 y$ m/ ]
        at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
( e- y4 R) I" D        at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)! H% p+ E- S" W5 s3 G
        at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
& D) a/ _* H7 v/ @: a3 a        at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)8 K1 C& e$ a& `0 T
        at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
$ I/ [' M) H( Y. E  `        at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)0 D! x0 u* w* H- Q* h9 |
        at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
) J9 x: a" ^% N" T' J( O        at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
  b  i) n- j" \9 }# t        at java.awt.event.InvocationEvent.dispatch(Unknown Source): q. c. t0 p6 G# D- c
        at java.awt.EventQueue.dispatchEvent(Unknown Source)8 |6 B6 B& R" n8 g3 w# A
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
# H8 |9 A& G' J: Y% M- D        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)  s3 @( r8 Z" u& ~3 [- z
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)' S5 U6 l8 e- d6 R2 Y( _
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
5 T0 z* u( j! z+ P0 |  o        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)- @3 B$ M+ C( s
        at java.awt.EventDispatchThread.run(Unknown Source)
发表于 2012-10-12 17:42:55 | 显示全部楼层
源代码贴上来看一下
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