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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
( q3 P5 v9 k' r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
+ D& s2 j- q$ O2 k' V* L5 t# U* |( H5 M
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4 J7 j& L, M' m: T9 g* f0 p
) Q$ p. T0 U' o, d; J \8 C1 c感谢感谢3 ]4 a, T4 F; \8 M
错误如下：! i' [3 q: D) o7 r; K7 H6 g
) a% l' I4 F3 a' N9 w; L7 lException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
. X% ]& Q0 v/ x6 P7 X& q+ y8 [ b at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)9 n9 j( `& [' Z7 \: a' X
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)- ^3 w; \0 B( I: o& p3 Y- N
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
3 \$ @1 {. s( p L' ~ at saf.v3d.Canvas2D.update(Canvas2D.java:113)3 q6 y4 A. z. T
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358), ~* l+ H3 G# x7 Y
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57), v! Y Q c$ |: X+ K v
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
% [4 b7 @. Y/ R) z- ?, ~$ @ at java.lang.Thread.run(Unknown Source)
! i( w" P/ i5 Z$ dCaused by: java.lang.NullPointerException
: A. f% C% A* D; ?5 H: r at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
; r* t2 L$ T/ I( Y# }* Z; m at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
3 B. F; [0 F: A4 k3 d at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
3 ^) o0 M ?4 N8 D; @% \ at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
" j7 \: L* k) P d1 B at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439), k4 u" W) j, e1 q! Y0 V
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
. s& i: k1 ~9 O9 A1 ^6 g at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
! ]$ _; W6 L% Q, F at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)3 R% J5 D) y# r4 P1 ^
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
' w! P& x' v) E- r0 f: _; ^. ~ at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)2 N, Z! M# I3 n* Q# ]% k' |
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
- |% `3 Z) j; G' b4 k. e at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)" U% K3 t$ Q+ p
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
, v. Q/ J* k9 S; ?$ [ at java.awt.EventQueue.dispatchEvent(Unknown Source)7 |- f' J$ [* n5 r5 y ]. N
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
1 E4 Q7 s9 D4 `0 L) B at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)) ~3 r+ X1 a8 q" u( p
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)5 H8 P _! a; k+ J
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)8 R( x1 y) e5 o( p1 V( Y3 H
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
5 u* \( v: a; {' O, P at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
