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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
D. W4 U3 A. m" C7 V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
# C A* F# @" F. E0 j. i; b0 X8 K$ h5 E e% 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
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感谢感谢
% }" @- q4 D! n1 H6 v- m错误如下：
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- F0 v0 P" R5 K( y, N. CException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
+ ~* V+ F/ l8 e0 r- X at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)) o- v2 F$ _% B$ S* E9 E# g1 A1 V
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
* d. s/ B+ p7 ~ at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)* d x" ?# c& c' r; K: F4 _) d2 P4 `
at saf.v3d.Canvas2D.update(Canvas2D.java:113)2 f8 q8 r; q( E, _( d) R+ ^- X
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
; H5 M3 u, f0 n1 }. `+ M at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)+ {0 ^" u; a- ^6 l! \! Q0 Q o
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
0 F9 q, J# l, _ a7 T8 ` at java.lang.Thread.run(Unknown Source) d8 h' g; j9 S) A+ ?: ?
Caused by: java.lang.NullPointerException
* r8 d+ e* C. h. F at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
: B2 h! ~0 E% A! X+ W6 d3 k at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
8 z4 k, u' x4 p: }; R2 Q4 U at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
+ D5 C) h! Z" G" T" \: P8 F3 l( k at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)0 Z& a- A7 V$ z3 D" k
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
6 p! }& B% I4 L- p- k at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)% [2 P" s( V' w6 M8 f* Q* N
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273); q8 g5 I, K- }" Z2 g7 e" ]$ Z
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
$ l7 n: Y+ b( x3 h X9 ^8 e at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)3 m" i' p* D# b9 I
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
5 `+ x- E& T. o4 x4 ^; T2 L) q$ l at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
; }3 b) N# a: T2 S, l* x% U1 K at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452); m0 b( e' ?+ @/ P% n
at java.awt.event.InvocationEvent.dispatch(Unknown Source)' n9 K* t) m# z' @. J( r9 l) V
at java.awt.EventQueue.dispatchEvent(Unknown Source)! b5 L9 O3 o: ^; |: Z; @/ r
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)% B3 C9 g: a9 I+ e, r
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
! E- R; G0 Y% R1 V+ {; _ at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
+ j3 n! ]; o6 @% j, Z; j at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
6 a) e) x4 [. f$ o8 s% P at java.awt.EventDispatchThread.pumpEvents(Unknown Source)# e8 l! d( n. \6 s
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
