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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
: V8 k( j9 M: Y* d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
2 B, Z# z5 H2 J( g' V9 {4 Z: B% r+ V' c* Q) L( H/ s; l
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6 K; R, f8 B4 h/ d5 I! X
9 H$ N+ k% I) g& V感谢感谢5 T3 H$ g3 l) u% O
错误如下：
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4 c4 W# \0 J0 K5 y4 fException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
% m+ w! P2 ]% N& a F. Y' p at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
: ~+ H9 T, t$ o/ X! k at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
7 }5 W: r, N. C: w2 p1 s5 H at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)( t6 T- y# [$ L
at saf.v3d.Canvas2D.update(Canvas2D.java:113); ?6 C/ _ V9 p, [1 x
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
s6 v: X7 N* j6 W5 }' D at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
5 y' W: H& A# \8 z, D/ l at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
3 c, g. Z. }- Z at java.lang.Thread.run(Unknown Source)
) @1 b5 n3 t+ [. NCaused by: java.lang.NullPointerException% K2 j! Z9 Q) V# U
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
. J2 o& Y) E( P at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)0 K' H: S) v! \/ g3 u
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)& l2 z, L$ u8 a1 k' i4 t
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
]) [1 o5 y) m& F8 {+ ^! h at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)' \) v2 X+ F R% |3 T' b" p
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
2 z: y$ O9 Y! ?: t( Y at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
' k$ G$ w' ~! f+ \9 R at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
" ^4 B' l& K! e- ]# J. c at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)5 b/ _6 A! I' \ ~) M! F; w _0 V
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
$ ~1 t* o# G2 b9 h8 M/ {/ i4 ^ at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
' z* W9 ^. r H) F; S( L at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452): Y* [! ~% a9 p3 L/ z
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
1 F. b1 a5 d+ U at java.awt.EventQueue.dispatchEvent(Unknown Source)4 ~$ H0 e3 Y: J; Q" a
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)1 d( q( u# A/ R8 U5 c; W" F r
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)& m* [0 r. Q4 b1 Z- j
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
; n) H& |9 Z$ a7 p4 r' t at java.awt.EventDispatchThread.pumpEvents(Unknown Source)8 t, A9 k, k- B
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
{; p5 ?3 q# M% a: h at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
