|
|
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; W/ k4 R6 A) 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( h6 P5 v* v0 `! m, i+ ~4 {
4 y* F% S/ H- w; i' 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
; f+ u3 p @6 K, C+ e- M6 }& p
) M5 B# }+ R) y* L0 v# t感谢感谢) q, v* p' T' i- D5 I
错误如下：
- H( Q+ L8 v% A9 @% I j/ r! F! |! r+ y A+ |4 s" `2 b
Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException: w0 |- h/ R1 q: x4 P! R
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)" y% c* s3 ^5 o# V
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)" H) Y5 S/ S I) ^! @/ u; g( t
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
) W3 {: A1 I. Y# i at saf.v3d.Canvas2D.update(Canvas2D.java:113)% Q! ~7 u5 Q( W
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
0 _5 a3 Q, j0 y7 [ at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
3 X K3 `6 x! y2 S$ K at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
% h4 W% T( R. ^: ^5 ]& ?6 k6 ? at java.lang.Thread.run(Unknown Source), A; J# F& N+ A3 z; u
Caused by: java.lang.NullPointerException! j* [: T2 m$ Q* f' I# \
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130); h! _ x) L8 u$ r7 M! G' s+ H
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)/ N1 @2 y7 f1 M; q; T, K% J
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)0 T& S9 g& M: \: Q3 w. f
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)0 g: y4 X6 L, _1 `5 N6 r
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
: ?- I: J" h* {3 M at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58). _- r, [: W) A: ~
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)$ K e4 q; J3 l7 z: C m" A
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)/ V1 p; h$ R1 F5 B4 o
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)) W. z7 y7 m& A2 i. \8 _
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
2 ~9 c# R/ W4 G1 k6 i% o" p: r+ J" _$ T at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)- B/ a# b7 I/ O; K9 ?' G
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)/ W/ C a5 Q! k' o1 O
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
) o9 ]; s1 }0 F8 l at java.awt.EventQueue.dispatchEvent(Unknown Source)
: a l, p- Q, p, K9 [, { at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)) a* x# m( r0 h: Y
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
) w2 D( [) ]+ S; W at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
) P* m# m1 \8 a at java.awt.EventDispatchThread.pumpEvents(Unknown Source)5 |& u" q, M8 ^, a4 C+ r$ Q
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
* n% k4 B0 q6 `9 t6 n8 H at java.awt.EventDispatchThread.run(Unknown Source) |
|
发表于 2011-8-14 15:50:58
