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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
6 t9 m4 D; C. B. n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
1 a- Z0 P" u. x4 `% s4 j
( Q) K- o+ a' G; Y6 p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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9 p% s: W% J7 Z, v, f感谢感谢
$ B, Z, a8 ]$ x- _+ _6 o" x0 t: g错误如下：8 o4 g1 ?7 C3 ]; o
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
- L% X% `3 w/ x8 o at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)! B, W) l; n1 j6 q0 ]* c& `
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
! i' {! @9 c) s4 j) d% X2 b at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)) {- |: [4 }5 O$ z4 O q
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
: o& x& u) E3 g7 t: m at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)" Z- n) i: K4 m* g" K8 m3 V
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
/ s( ]% [$ G6 q( d. H at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)6 X. u7 G9 a; ~* \
at java.lang.Thread.run(Unknown Source)
3 n1 |9 B# ?3 R. |) uCaused by: java.lang.NullPointerException
1 r: m! ?* Q D at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)2 j4 ^% [% I1 V
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)( ~0 I! Z* j X2 C' s% ]
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
( \: C3 c( x! C9 K3 J% t at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
- M' U9 ~% U; G0 [0 q at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)* N S: Y' g: k0 U$ G6 ?4 T9 ^9 `
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
2 ~4 j1 d- {- o6 s( T at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
) G( ?! U+ S1 [: {& E! d9 r% ?' y at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
: Y3 ^, l' X4 o9 Z2 c at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
+ P' O" I( \9 Y8 `: ]1 U- z at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)6 g; |" [: s7 j3 G: s o
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
f. P4 Y/ M4 @) S. ]9 ~( W4 p& s at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)0 Q. Q6 F8 W g1 N6 j0 r* G4 c9 O: v
at java.awt.event.InvocationEvent.dispatch(Unknown Source)5 ?; e, `* `0 u( d2 I3 u
at java.awt.EventQueue.dispatchEvent(Unknown Source)4 O! p' W0 O& A2 J: C" ?1 R
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
# O: F) d. A1 u at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)! a2 B0 ]$ j% |$ u
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
. Q3 h( C- Z ?9 W7 n7 A3 c! i at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
2 h- A! ~" x- N9 K1 d3 J% ?" n at java.awt.EventDispatchThread.pumpEvents(Unknown Source)- Y; z+ v8 u6 Y) G
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
