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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
2 D8 o1 @' ]+ @4 t8 Y8 L, Z" J" ~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
3 E8 A& Q( z3 Z3 y; E& A. y$ B; r2 B( [% g# @
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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! r- n, }2 U; K8 z/ {* g [0 X1 D感谢感谢
1 I, c: c" I, H" \: U L6 e2 B错误如下：
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException- z3 L& C: R3 \2 l& B. x
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)+ ]& b& l. ^7 y2 C
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)1 M3 N5 F$ F v
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
$ l# k6 E5 n; H" y* O4 T" V: U at saf.v3d.Canvas2D.update(Canvas2D.java:113)0 {" t6 S$ H+ \1 D6 s3 V
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)8 a( @4 `+ x2 I
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
?4 t' r7 Q# z- p& ]2 t at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)1 @0 t* A) M0 J+ }+ x4 @; Q# Q% X
at java.lang.Thread.run(Unknown Source)! a7 T6 T) V [! @0 X) Q
Caused by: java.lang.NullPointerException
0 W2 `. T; ^4 m9 `- M at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
/ E. M# o- o" X* N4 j% e* X at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88), @& k5 l, }8 [# ]6 w+ x
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
) L5 }. Q P2 y8 n at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
S7 l- j$ u9 V6 q4 G0 a' p at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
9 Q, [- C# }/ f+ J; a& R2 M$ `1 z at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
/ ]4 d0 B2 J* p" F" ?6 d at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
( i( }( `# u+ L) o+ k at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
7 f1 C& w: m0 a: z! x! u at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)) F) i b$ h( v( U) f6 x
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
7 p) g) k3 W" W" s# e at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
6 W4 a! f6 T$ ^) p5 ?$ S3 Z; U at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
! \9 y' i2 q" n0 X at java.awt.event.InvocationEvent.dispatch(Unknown Source)4 O$ w ~) b' q' z4 M! b1 b
at java.awt.EventQueue.dispatchEvent(Unknown Source)$ J* q4 w2 t. e
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)/ r1 K8 j! {% v- f' p' C3 s0 B* Y* a
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
' w7 a z, z: Z at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
" S4 d/ H; R0 L at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
! k3 C, t7 E/ m" a& \4 I( j at java.awt.EventDispatchThread.pumpEvents(Unknown Source)6 C4 \5 e5 @$ T, k* a! I
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
