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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
& B6 R. m/ q9 F8 y- H5 w* G1 q! w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
1 ~3 E9 S# D1 u0 e- G$ W2 p9 P
. s. e( e, w( O0 D8 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( ^4 w- C$ Z* A% J
: _6 s; ]; z' Z4 z# k
感谢感谢
( R" o; W) [2 d, e5 g8 {( C错误如下：
$ A7 b6 Q% f3 \4 x# Y$ p
9 e g3 z+ r) q4 @# JException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException7 \" j) L* I* U. F& F: R; S
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)' n1 B8 d1 W- Y% M" S `
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)0 t0 x; ^" ~/ P4 L
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
9 W1 f d/ Z+ a0 Z7 w' M5 e7 Q at saf.v3d.Canvas2D.update(Canvas2D.java:113)
9 C$ L. H# u/ }$ E at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
5 E* w' ~/ g! q2 D- C1 e at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
( k R* t) L ]. u; F& {% S at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
: I% R! t/ \, w) X1 [: \ at java.lang.Thread.run(Unknown Source)
7 I# N$ c: C* F- B7 M: nCaused by: java.lang.NullPointerException
1 d; w6 s+ R- t# d at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
6 g8 e# G# g8 }, ?' k at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
- ]) E5 j" u0 H3 ?/ Z. s' S$ N at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
! L& e& }/ ]# r, s) o at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56), `; A8 s1 l/ d: h7 u+ l* T
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
3 I+ ]5 G4 B7 y; l1 |! \ at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)$ c" `1 x+ A4 @2 y6 u, @" J5 U
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
) m' [# Y8 V( d* ` at saf.v3d.Canvas2D.reshape(Canvas2D.java:302). k! V, G' q1 `
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
8 u4 Q) ]: N, Z; R at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)8 Q7 v8 l2 h" ]. }
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)0 H! m! A2 V- R) r2 a. Z: ~
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
3 w7 n3 p2 V! X ?9 a1 Z at java.awt.event.InvocationEvent.dispatch(Unknown Source)
) K7 A; [ ~. U/ \. u, k% m at java.awt.EventQueue.dispatchEvent(Unknown Source)
( x: A( n, `/ G& _ at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
0 ?7 a- c3 o2 ^8 C$ [+ t H at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)' a/ ~* U+ K! ~& x) Y
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)% h7 @. Z L2 K. E
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)4 _- s2 R Y. J. R) {& B: G& _5 |
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
* ~$ h# a9 d+ E at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
