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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
6 h5 V' T" Y* v5 O! q3 k1 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9 _& U# e4 J! a( m( A$ K8 Q( b
2 r* ^: e. x5 m5 A' j; S) 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
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& I4 p* O% e+ Z. P6 [ p" Y/ h& o感谢感谢" @! ]# G z0 a7 I& t
错误如下：6 A/ a3 h( D- r$ Z$ P
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException$ ]7 t+ K: N- O& P; C( z3 T" y) e- [
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
8 i" i+ p2 o) v; ?+ J( M4 m$ r at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
% @5 B5 |6 z, s0 G2 l. P at javax.media.opengl.GLCanvas.display(GLCanvas.java:244); w) k5 C, S# l ]# C% u1 t
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
2 m. Y% }* @ A" m7 s2 W' E at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
( K' X- `" u9 P at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)* d* ]% T: {4 E; q: ]& K: c
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
4 J$ h+ E' ]' l: Z* Z at java.lang.Thread.run(Unknown Source)- J8 V8 @4 G5 m$ z
Caused by: java.lang.NullPointerException
7 b+ K% P( o7 r at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
- r8 n" K6 [( [7 N |+ T4 M at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
& ]4 i# d G/ h t at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
8 Q" t, z4 v( ]# J1 Y6 s- D% d- B at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
6 l8 K2 C, x# C7 o# m: k at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)4 g! g8 q6 U. ]. ^+ D$ N
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)3 C9 e, s2 U' [; S, c5 m
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273). {% _: t! b6 S" ^1 S3 r
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)3 Q! u- W. v7 p
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
3 E" L9 r; I: |1 b. w9 ^ at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431). E( Z: {3 r2 l& R! `" F* p
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
5 C( a. V5 A: P# o* }7 r6 P at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)' L& w& k( |! l- R
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
& s6 W7 N) H4 {) {- q9 ` at java.awt.EventQueue.dispatchEvent(Unknown Source)" p: K' r; f# G+ q
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
) p9 {6 O+ `# q/ J& |' Q/ q at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
. d' }. Y5 G* n$ o4 m4 y% S at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
8 L/ H9 k8 _6 R( S* K at java.awt.EventDispatchThread.pumpEvents(Unknown Source)& b5 g" o/ ^5 c& y2 U/ w
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
% d7 Z7 v! O+ A r ~; g at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
