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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
2 \/ Q9 e2 ^. K/ p8 W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$ {+ Y7 b O9 J; J, K1 c/ t7 T
& ^9 l ]; z2 U; p& F, w4 z5 t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/ {5 ~ _& l. Q, y8 e
) g! u* V7 k+ [) }# w感谢感谢
% o5 D+ n8 S7 J+ A+ ]3 b错误如下：( r. g% @6 C% I0 Z. O5 \$ c
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException' d0 R7 B3 }6 i, Z9 d
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
: O. U( l4 ~0 _5 [7 W3 G. M at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
4 @1 [( {6 | g4 `4 O7 z at javax.media.opengl.GLCanvas.display(GLCanvas.java:244); D/ e+ g5 z) Q1 {0 D+ B$ p
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
$ }$ R& \- h1 A" U1 W# u: V at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)8 m8 w0 T2 ]* M% A, a
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)$ U k3 K0 d2 i/ ^
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)* O5 w" f' C' R5 o$ l- ]- }
at java.lang.Thread.run(Unknown Source)" ^* g/ {7 E4 ]- ?' v3 f' m
Caused by: java.lang.NullPointerException) P! U, T% u+ [, M9 ^
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)3 e7 H$ C- J9 ]
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
( Y# ]7 F. A9 B4 v0 Q at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
6 m+ A' f: L/ @% x# H# h* X at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
/ F& h9 o0 f: F8 \( L8 _( `6 V4 W* t at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)8 U3 o. r& D" ~' U& k
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)) H3 W- ^+ |, B9 W$ L& b
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)! I2 O, O8 }' Q
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)! ?' U# T! R8 Z8 Q
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)5 D% A$ `* f4 N" U
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)- X9 U% ?' X0 q% ]+ ]
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
, B6 I# y, ~+ t at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
7 ^$ e" [3 s0 }3 d& o0 r3 Z* A at java.awt.event.InvocationEvent.dispatch(Unknown Source)# ], z8 J! q# v+ K4 d- _
at java.awt.EventQueue.dispatchEvent(Unknown Source)% d; Q& D8 m+ S; D& i
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)8 M2 G, `' r9 [$ U! U+ z0 g- I
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
4 E9 R1 S2 i; m8 p% E+ b5 m at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)( n: N% M3 b: Q0 J
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
4 H$ b! ]" d. z4 G7 | at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
% E# s# _3 L; z! O/ k, H' f% k at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
