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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9 f e1 s ]6 N. [3 h7 T; 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
4 y' B% `$ w V0 s5 n. E8 k/ X' g: G5 y$ H5 F$ e
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" D' b7 z5 Y' I
+ ~) V4 M. q) U/ A. O9 l1 i' e感谢感谢
9 x1 {+ ~/ |( s% }错误如下：( i- `' O$ \4 V7 q1 L( B
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
7 C6 m1 ]/ A3 K( Z, U7 p at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)$ B& R4 t! _0 q+ ?* ^2 g* V+ {3 L
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)$ b1 g+ t: x' K. o% K F) _* o5 ^
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
% u7 u: B5 M* } at saf.v3d.Canvas2D.update(Canvas2D.java:113) e8 T( T! D3 X# Q' U8 D
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
/ k* Y/ I, G) C% e D at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)7 A% N- L, T1 Y7 a9 j6 _9 _* d
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
( n/ a% I1 g# S h5 K at java.lang.Thread.run(Unknown Source); t& u$ R! h5 z7 a: c4 _
Caused by: java.lang.NullPointerException$ p* m1 p ~: J. j/ N: s# n
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
. F" ]# I) E# H% X2 A3 H3 g at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)0 |& V" r/ s+ i$ v) g
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)! e O) n+ e# G9 z
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
' m( [* t) D6 {+ e! f: K! b at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439); d6 C, E. b! l- ]" s5 E) d" I
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
9 W5 L: S4 Y7 r6 m6 y% ~4 X at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)* b9 u& g* y; F. C3 b% ]
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)- D1 R6 e: n8 w
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)8 o* K4 L3 K+ I. L9 o
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)6 r/ L( U6 N. J! D& V: K
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)1 e$ i& ]9 t; f4 Y
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
9 `* n( x3 C9 @. q0 ]" p at java.awt.event.InvocationEvent.dispatch(Unknown Source) I4 V4 z6 h: h7 ^5 h+ c
at java.awt.EventQueue.dispatchEvent(Unknown Source)4 Z. u2 h( ]; Y7 E& j
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
' k- j' x9 m; t% i$ i/ h* h at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
7 t' O' O2 G8 X1 \ at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
9 j; s2 y0 l' o, R1 |1 s at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
, V( r5 b+ { j. T" t. D) \ at java.awt.EventDispatchThread.pumpEvents(Unknown Source)% v* e, q; Q2 u- }9 [" g
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
