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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
/ T* L( B, o8 n8 }$ M! l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
9 q4 M2 A$ ?! w% A% X9 V
( W& b) M& h1 u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 O4 c% A' u8 T; v* V8 [3 l+ G1 V+ K7 @) U$ i
感谢感谢
- P' Q8 l" `9 L/ U( ]错误如下：* {& [: k8 H1 ^9 {
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
$ h9 ~) f6 F6 {1 J at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)/ ^1 W- @8 s7 K1 b4 A$ S3 }
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
3 l: o {5 }+ k( e6 Q: ]; ] at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)! @. o" W, x, p1 `! @* C% Y
at saf.v3d.Canvas2D.update(Canvas2D.java:113) W3 @9 q) {8 _. X5 s+ K" C
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)$ A8 I* F3 Y( S$ W- c9 l# ~
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
2 P6 Y2 U$ r4 o' D) t7 p$ ?, C at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)5 d3 O# n; n* _! Z: c R
at java.lang.Thread.run(Unknown Source)
! K6 J4 a' t: Z) U8 g! P6 fCaused by: java.lang.NullPointerException
$ w: t( f# U2 w4 Z at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
9 w: k, x" S l( V1 o at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
. H d- O; ]) z# j2 g: o at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
* J( L" l0 x1 }6 k' g' w9 u% b at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
7 `; N! k6 _2 e at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)$ j' k# f( j. d9 w% _* n# D
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)7 {5 c5 ~8 \5 C2 b5 n4 w
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
$ b7 V9 ?8 b% D at saf.v3d.Canvas2D.reshape(Canvas2D.java:302) P" G' `2 [9 e) ?
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)2 d# F9 v" w4 |- O% ~% X
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
2 z4 Z2 s4 C. o at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
& @) X3 u. a1 x( O* T# e; e at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)5 d# \% c/ {+ M I6 `7 M5 I
at java.awt.event.InvocationEvent.dispatch(Unknown Source)1 z+ W' S ~$ w
at java.awt.EventQueue.dispatchEvent(Unknown Source)% D! E4 C }) ]' G, R
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
: ?1 O1 q! T( U. X at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source); h) o8 r3 E+ y5 h
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)0 N/ ?& ~! H- J( a! N& }
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)6 `( t, B3 _; l1 n! F& C3 H
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)' ^; x( G' a8 M6 I
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
