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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
% s h: ]4 X. y. e0 x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
6 \/ u- `& d( U' h
& H# J* U& P( Z7 R( |' Y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; \8 e( D& j; G% h! |. q
( b3 P8 A: i) R4 z8 Z: N; A+ C3 v# [感谢感谢
( `: _7 ~& }8 D. C错误如下：' f% Z3 y2 T" h/ V# h; p- R
8 o) o5 z$ Y- ~" [1 i$ }* yException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
0 v. u+ i4 O G2 Q3 v at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)+ A, M/ S% I3 n Q% n( z
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410): d& |$ ]7 a$ e% r
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)) p' ]- i7 s* W; J, z0 e, B
at saf.v3d.Canvas2D.update(Canvas2D.java:113)5 ^) b) `1 [) H7 p; B* S S
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358): T% F" _, }' W3 g
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)9 \ _" j0 ?) H6 T4 Y
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
' e g* E2 I w6 n at java.lang.Thread.run(Unknown Source)
/ E1 q, m2 ]; }: F: t8 F1 ]Caused by: java.lang.NullPointerException, Q: f0 g9 u( Q0 T$ D/ @, h
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
$ [) h0 H# v$ o: J0 G0 I at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
6 u; g% N8 s6 {" G8 R at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)' K1 C) t: I5 B, |* g
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
V- b& k. @( s; E c7 I. g at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)' e6 i# R. E0 Q* A/ T8 f
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)/ b+ r$ Z1 B! N0 z% x$ |
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
4 I8 r P4 V; ?8 m at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)" L; M" i! r; Z) O: G2 }
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)' ]* R" I$ m3 s* L
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)% a% B6 x/ |/ f8 M/ B& U) R
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
/ A. [7 n1 k5 Z* m( o5 X* w at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452) I. I2 T6 a2 \. [5 L1 u, o
at java.awt.event.InvocationEvent.dispatch(Unknown Source)3 Q4 Y3 g/ _6 e
at java.awt.EventQueue.dispatchEvent(Unknown Source)
) z6 g' Q+ y$ i6 }# D at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
% a- b' E' e+ V$ Q$ L$ b at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) J8 y o# G. W1 g% T& @
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
; v- w' R3 `4 d4 u5 W at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
" ?. ~3 h Y( `1 B; ~- N0 j7 ] at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
2 V! N9 s7 v9 c& z2 m/ Q2 t6 ?( W, v" F at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
