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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% e# _( K2 [
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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" p9 V: p6 H1 s+ }5 A% ~. n5 D4 a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' v" m( p. X, x7 E9 H$ a5 C! W
错误如下：
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException" x" r2 O, ~2 W! l
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)& J: O3 T; J/ c
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)8 y( o9 d7 N' R9 O
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)2 }; m/ [3 U9 @! c1 w7 A/ s8 m( |
at saf.v3d.Canvas2D.update(Canvas2D.java:113)% G8 a/ a9 P) K$ s; O
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
: w3 u) I4 W: a3 m8 N' d at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
8 q& \; {- ?# N at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
( `$ ?* }* n1 j, ~: P! ` at java.lang.Thread.run(Unknown Source)) k6 U" J) \; {8 f2 E4 }
Caused by: java.lang.NullPointerException
# ]% R9 W3 M9 y$ k' W8 K at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
& ~6 x3 j( d' o3 v" J$ w: Z! e at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
9 C g; J; w; @, w- m5 Q at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
2 Q( T- k3 l& ~) [, ]' Z at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)( A: @, p5 w; p+ x: [. P" e
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
) o; \8 S4 Q6 y7 P" Y at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
1 X& x& }. B1 F3 Z( a& C" t at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
6 Y- e# }& M& F5 J g0 f9 j" } at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
0 T: Z: q; e4 j9 |5 T at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)% ?0 k/ P9 E4 i2 ]+ `- V/ H9 N
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)& S5 b% Z' e1 p& E0 l# g9 p2 e' F
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
6 K1 S( l. G4 |9 M: S at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452), o$ _! ]1 s h% `/ e) M7 e
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
* k1 f) d) e% o* a at java.awt.EventQueue.dispatchEvent(Unknown Source)) v1 ^3 t2 o3 _ T$ @1 Y0 {
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source), V" z& p8 ?/ A. N0 Q; ? ]+ t4 @
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
1 t8 b1 S8 G) }9 L9 h at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
3 @2 m; m) C7 p3 p Y8 K at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
% J- s; k1 h: M* L1 { at java.awt.EventDispatchThread.pumpEvents(Unknown Source)$ m$ t# y. E/ V7 l) k7 g
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
