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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 E3 d: K* a" Y$ y* 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
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& R& T* C5 p" M8 z( f" u" a: P+ M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
, v7 `% X( g" O5 z( t2 p! Y/ _4 A7 u
; V- R- s" m. @& f( _感谢感谢
. U, q6 }, P. E0 Z- C+ m7 y错误如下：5 u& c0 J: H' c! J
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException, _0 k8 B0 o& S1 z- R2 q
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)5 L/ C7 S& T, E2 w: ]$ ^
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
* [( \) Y( A6 _# G F- Y at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)# L4 {$ g3 Y$ a/ @
at saf.v3d.Canvas2D.update(Canvas2D.java:113)7 i) r; `& j; h* ?# D6 {
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)& W) m& _+ K* e3 x, O6 s
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
' Z" I, K" Y* I' i2 K" i at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
j3 ], W; O) ^ ]' S2 Y+ V at java.lang.Thread.run(Unknown Source)
1 a% W2 R8 a; l( ~& h+ D' M% h: ]Caused by: java.lang.NullPointerException# ], r& L) Z/ z
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130) d# ^0 `/ y& v8 p+ z4 O! z
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)) h5 u. Q$ E/ V* V0 v V/ z
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
& U c/ k/ S' D' B) { at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)6 q6 C8 ^4 A* J2 b; H, J+ @
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439); M# Q. J( a" ~8 F3 R0 B- U
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)% [: H/ H. s2 K6 ^, [+ [7 ?# M
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
0 i" R: u: |% q6 \) M at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)6 u4 h% \: F8 s2 Z1 d. Z6 y
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)$ }0 n5 D3 r5 `6 \$ C; N, e' b5 y1 g
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)3 B9 N5 n. _& x/ N
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)0 G5 _% @% q+ r) O8 C
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)# f) ^6 V: T6 Z
at java.awt.event.InvocationEvent.dispatch(Unknown Source)7 B2 H' Q1 ]7 b8 I8 L, f
at java.awt.EventQueue.dispatchEvent(Unknown Source)
: [/ L( U, `( v/ o% E' q7 Z at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
3 F; w' ~# _. d9 ?9 p! q. V! T$ l at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
. y% Y A" i3 G: k: \3 G. Y, d! q at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)$ X$ l# m2 G" ?
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)6 M0 V' d+ X- p; [: m
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
$ n! x! z6 k1 R& s e at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
