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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
+ n/ N4 R2 N- f. D" v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: N F9 r2 \( Y v4 f% ]
5 H9 e6 K0 n& P, Y: u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! v$ d+ g2 f& w8 ]3 ]; A p- U: k6 F
# b0 J; J' l ^% E9 N( h3 Z) ?感谢感谢
* G9 R, o, c' q! {错误如下：: Z0 i9 y3 ~. o( T3 X; `
; `' l! Y3 M1 v, i! d3 u4 H+ P+ B# xException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException4 G r! d) D9 n J
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
4 x6 K$ a. t5 E* v9 ~ at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410): F2 m4 n3 V' Q4 B$ ?4 R
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)7 I3 b+ [# i( x' A1 S8 i
at saf.v3d.Canvas2D.update(Canvas2D.java:113)% ^5 A3 M R4 r
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)- D6 H* B" Z! W
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
3 o6 G& ]' `* q g at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
& `( I8 z9 {/ [ Q8 d- T at java.lang.Thread.run(Unknown Source)
. O$ N6 I: z W4 ZCaused by: java.lang.NullPointerException& A& h' i3 f/ w( I4 u1 m, i; j
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
9 C+ E/ r0 B8 P! t at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
: X4 E- ~9 U# G$ j8 q0 Q4 Z) }# @% s at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88). Q" ^2 h R3 i& I4 o
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56). I/ J8 K, P: p, ~/ t
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
( @7 d& y! i/ F( a7 G9 \* V+ Y% a9 p at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)# [9 m. o8 Y) V' Z
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)% a! U6 a8 v# P5 M
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)7 f0 h8 c! o' N: C# A7 B: ^9 K
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)8 @3 k* P% {- x! a
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
1 j7 N m b/ m" G' Z- A at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194): b4 M. G2 z% s, J. _' c; \5 Y8 V. q/ y
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
4 N5 S2 x- m7 Z- H, V8 U at java.awt.event.InvocationEvent.dispatch(Unknown Source)
$ f- b' e- Y# v0 t1 @. [ at java.awt.EventQueue.dispatchEvent(Unknown Source)
$ y0 p, N5 p. x/ g at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)2 |* u r; R1 _) M1 K' P& _# h) g
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source): u5 u) ]7 `; v. m! V
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)' d( t: b+ m9 u6 x$ q, q
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)7 r1 l' i2 `; P
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) ?3 f0 ~0 m) u4 m( }: V
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
