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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, ~, }7 O; G# L. M
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
; q' K/ H E; }1 G% X
' }/ h8 I: E) \$ H4 R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
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8 T5 X) x3 v& S( c& \5 p/ @0 {感谢感谢
/ J% q7 {$ [% C* x# ]0 T6 \错误如下：
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# Y2 k k) G5 M3 u9 XException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
. v$ N6 k5 X( Q; \: J1 F at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)5 J/ v! b6 V* i$ `4 p; ] x1 B1 Q
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)( j1 g9 ^/ T4 ]
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
- J% W7 l }- {+ I at saf.v3d.Canvas2D.update(Canvas2D.java:113)
/ ^1 B. E$ C' T2 o' ^ at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)$ V) ^" q8 _3 B
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)' z [$ u- T9 j1 C7 ]- I
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)' Z) c% b" v! Z
at java.lang.Thread.run(Unknown Source)" ]/ @" [5 B- N% y8 K3 {8 T
Caused by: java.lang.NullPointerException, B8 u: C. }" l
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
; i% F$ R( F( N* n at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
0 T- Q2 K& \1 C7 C N at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
; v* N& p/ o* ~$ r- j* s9 ^ at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
- ]* ]/ e$ W! e7 b at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
; @/ H1 D) @# `4 M% }7 j# B1 E/ ? at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
& x! h1 ^ M7 X0 I) O: d# D at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273); _0 U* S( h" F7 n1 h6 R: A6 i" z
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)$ U$ L. W( j+ c: J* Y( Y. O
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
: q P6 g2 p% E, F at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
2 _! `5 }5 {2 D: ^( B, ]: Y at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)1 \1 l% b1 F+ k) T' h
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
8 X1 u2 e) ~6 v- J2 o. }+ X at java.awt.event.InvocationEvent.dispatch(Unknown Source); n' h2 G( c; \1 F5 M& j
at java.awt.EventQueue.dispatchEvent(Unknown Source), g: B8 R4 Q. ?& o |" Y
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
- i& ]* F- y- S, ^3 o/ @ at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
& c5 L- i% s# H+ s. e; Q2 ^ at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source), X( m0 M/ s$ g$ c$ Y+ P
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)8 m& S. }; l& ]4 ~* k
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)' ^4 @ b7 K0 I+ v
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
