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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
* m$ H$ G& n; ? Q1 z; T, d; K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- g" u+ y3 J9 p. W/ R
" s7 q& j3 t3 `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/ P( @2 A8 h! r3 R& B+ R
0 t0 p3 Y! y5 |' c' R! Q
感谢感谢. f$ S* ~# H& C! p
错误如下：) E9 r3 Z( ^- s% [! p6 l
, F6 }+ _+ h- N: K! e" Q7 HException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
% L# Y+ Q: M& c/ u at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)4 R" ~# _# A3 q& n1 V2 j6 u% r
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
, }1 L$ B) j1 U$ {5 O- {' u/ r6 ]% J at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)- v* s# f: _* i( D; b/ T8 ]
at saf.v3d.Canvas2D.update(Canvas2D.java:113)$ l9 ^5 z+ J+ P1 I. h5 C
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
2 n; b( x* Y- Y; q6 g* h at repast.simphony.render.RendererManager.setPause(RendererManager.java:57); \1 y4 f8 s( `" P) Y1 S
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)) Z+ E, n; S: M: I: D
at java.lang.Thread.run(Unknown Source)- _- U$ h. H' {" l0 w9 y
Caused by: java.lang.NullPointerException
" p( y* M8 q' e, U) v) C3 ] at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)* x% h+ z8 Q5 O; j1 A
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88): _# h; r0 e3 a: _: k
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
' U7 o* @' ]! G1 ~4 q% v at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
8 ?+ j0 L: K3 M+ F$ Y: ~8 K at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)0 e, W) ~( r2 x6 t0 m
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)) V, k$ O, \. z, F
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
! M* j7 f# l* f' u7 P4 w at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
' a1 t$ k) g& t at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)+ U2 Z# Z4 r2 r+ Y2 F( w% u
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)( @" b. d* v0 M1 _0 ]# b* n) F3 x
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)6 x; Y0 j+ x8 T( ~, B9 t, l8 i& @
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)2 d3 v# X+ e+ D3 m
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
8 V$ P6 ]4 ` a5 Z P6 }% X at java.awt.EventQueue.dispatchEvent(Unknown Source)- S* _ T/ t, Y
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
( u/ p, O2 k7 ^1 X4 u! B; o; S2 A at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
: ~- {8 X) s$ | {! e' g at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)* G. z* @8 I$ T/ L/ v/ f. }' {4 g
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
0 Z" _! L0 `/ C$ _ at java.awt.EventDispatchThread.pumpEvents(Unknown Source)* p/ K8 }, P( C4 h: d
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
