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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' \" z# H1 X1 v+ f \8 }
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7 Q" {& h1 B6 A' n. l# N$ O" z# j2 K
$ T/ i: { u. z8 \1 q( s7 V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
! n- W/ z. I7 x* X/ I+ t
1 }7 c, v- @ T+ c感谢感谢: {% S1 ]' I1 y! ]& P
错误如下：
# U- \$ T; n+ g O5 S
+ p6 N4 c8 Y$ zException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException6 E' q# e8 y% S3 d: Q
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)3 B4 K' g) W+ R. I6 J
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)( d) `: J% C( c( a+ A ~
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
# M1 @7 x4 Q( E' }( h6 w at saf.v3d.Canvas2D.update(Canvas2D.java:113)
8 k1 p/ N7 B( p D ~: _9 h at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)9 U9 Q d& A; l6 `+ w3 E8 h# [7 p
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
; x) r' A b9 B% s$ P) f6 w7 @! F at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
8 u. K8 a ]6 O, ]( f* N% D at java.lang.Thread.run(Unknown Source)
0 P% k" H1 Q0 r4 _! [/ ?Caused by: java.lang.NullPointerException
2 X' {8 R0 M1 o7 m1 Y s at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)+ C6 }5 F0 V& _( K! R
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
Y: a+ D4 }& O# Z4 b! Y1 j+ U at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
+ R) Q( c9 C: }% D F at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
7 C& W, F0 V$ J5 N/ Q e at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)1 d. R4 }% o1 Y
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58). K1 x8 f6 @* `( M9 c6 i% w
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
1 m2 Q* Y2 x# Y at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
, T7 W) `" b8 ^" z7 [4 m8 g at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)3 c1 P6 \9 a" V% Q
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)6 \4 p" z' v5 W% s' t- D2 r( s2 T
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)3 _. k- y: t) J) q
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
: `: Q' A. z4 L5 [3 {+ U at java.awt.event.InvocationEvent.dispatch(Unknown Source)
8 P: ~8 P# P J1 g at java.awt.EventQueue.dispatchEvent(Unknown Source)' s- t4 G" _$ _# G- K
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)# q& j' r8 F, S
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)" R' T8 x/ `8 L
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
# Z: a3 \3 c% A7 C, H1 L2 Q at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
+ _, e# U4 d, s) J% {; W at java.awt.EventDispatchThread.pumpEvents(Unknown Source)5 W) X5 Z2 N8 M: v% }* \" R
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
