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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
5 a+ y" j0 p. t4 u5 ~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) E8 j6 N/ s1 z& T, l! b) I9 q! [
/ E1 J+ m, u+ m) J+ z/ |
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
3 P: |% C6 X( F& Z4 X& g2 V# V, a# B" d8 [2 i( p
感谢感谢
* H) a4 ^$ w. u/ t5 I, w错误如下：9 q' P6 s, O j0 m2 M6 @/ a6 q' g
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException- b# _' g4 Q H8 B0 k
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
; a, E1 B1 y3 ^0 p at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
" \- w0 z$ r$ v7 Q' ~ at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
- M; a9 b$ A1 i% }, |7 ]1 H at saf.v3d.Canvas2D.update(Canvas2D.java:113)3 o+ x4 v0 b3 ]" j# b1 b
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
8 i7 z0 d: i, y5 Q9 S0 e4 c at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
2 d- w3 W) V- k) |3 A3 R1 s at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46): T- a8 r% r7 O) |# `
at java.lang.Thread.run(Unknown Source)5 J( Z1 {+ V+ F) o
Caused by: java.lang.NullPointerException
; h( I: W4 G: O. j) n$ i at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)- R# p3 w$ Z% D( O
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
v4 G* Z; R, [% [5 C8 z at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)# }- e& N. u F
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
o3 ^# A0 @( e9 @! R7 L0 W9 e at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
: ]( c# j( J# e8 B Q' } at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)9 {& D- D) y6 Y+ d2 j# h
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)) W5 g$ T6 t) |& t0 r& y
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)( o7 Q6 x. z7 \# E2 V9 J3 H9 L
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
3 r/ ~0 j1 @% U5 V9 t at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431): e* ^0 L5 M7 ]% Q
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194). s, }. }3 S* [+ Q* f2 |
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)) k3 q. F. ^+ M, v& g, \ w
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
- m/ {1 _# O( m- M# h# C/ T at java.awt.EventQueue.dispatchEvent(Unknown Source)
+ q: W3 A( t% \4 m& I: `1 v. _ at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
8 U* N- n% x" f F7 p7 v$ M at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
x# M1 ?8 k& s) ~% |" _0 c6 ] at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)" q# e. B7 Q$ @ G4 i& i; o
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
3 N5 }. A0 k( s6 Z, n at java.awt.EventDispatchThread.pumpEvents(Unknown Source)) B' L& j) w+ b' r- @
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
