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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
7 b' t* ~1 D4 Q4 t. T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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3 d7 A( R$ p% L& `5 R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
1 @& [1 p/ r, V4 I2 F1 B' D# t5 W# C% k' o. W1 c. m) G
感谢感谢) Q1 C0 ]8 E; f6 d
错误如下：( a+ J" d( q0 Z8 W$ e3 C
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
) h8 M. h, |, S at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
* |, f' t) z, n/ D* A9 | at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)9 I3 n) X% G; \9 o5 N6 J6 X
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)8 g: l# n& a9 k/ R- T
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
+ `7 S8 c5 L. Q2 U1 `% n at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)8 A0 Q4 B9 j; `& c, U1 r3 D
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)4 ]3 s4 @. b0 m& f l2 t9 |- L( t
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)+ b9 Y0 j. @" a* y, Y, Z9 [5 r
at java.lang.Thread.run(Unknown Source)3 ]: _, } s1 c9 ~, _, K
Caused by: java.lang.NullPointerException
o0 h. f1 Q; ~: W! b at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
2 H2 g) G; [: y. g1 ? at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)" Q5 a1 Z9 z9 w4 v
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)3 H) R& S& o6 ]
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
, D; e8 U9 D) F1 d2 \; T; w at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
, k& j; f; E0 I- R: K# e at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
4 }# \, t h7 b6 Y* D at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
8 @; d; Y; b8 n/ P at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
N, J d0 P. n* W at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)) k# a/ R: L2 b& P; p3 j. O
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
8 c, l1 L0 Q7 O at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)7 ^9 C. e" s6 ~% K0 p/ o
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
* c, c: x& A' U8 g! f at java.awt.event.InvocationEvent.dispatch(Unknown Source)9 T F; g1 m- A& H" w1 H
at java.awt.EventQueue.dispatchEvent(Unknown Source)# W2 T" x2 f5 U, H# |/ I
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)6 S4 @! H9 f" b- h
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)0 q; ~3 n1 l' Q* ]
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
# i3 V$ L1 m) W4 P at java.awt.EventDispatchThread.pumpEvents(Unknown Source)! T, P: g, K7 Y. i$ z K1 v5 P
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)2 ~& X; g8 }" |6 e6 W3 @% p# {
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
