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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" z" C5 D. }4 ?7 `- z% A
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
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/ `. y* B9 I4 O% v5 t& x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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感谢感谢
: y5 V; s- b6 @, m5 [. w6 Y/ f错误如下：
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( t7 k$ e1 B5 R3 xException in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException9 B; b* ]" l; a ]* G6 G5 j
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
3 b Z" I5 E0 A2 ~) s at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)) `/ ~$ h+ @. Z. J
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
8 w& S- c7 Y& Z" j at saf.v3d.Canvas2D.update(Canvas2D.java:113)1 B3 {) T, ~, {
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)+ x0 N/ [# t& z7 J! Y4 V0 N+ i
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)- I+ Z/ E+ F8 M; n( j! p2 w3 ~
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46); J u& k/ [; C3 W
at java.lang.Thread.run(Unknown Source)
9 t: r! q% M }- f: W* MCaused by: java.lang.NullPointerException
! H' |& o7 O% k at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)# {% U1 G; |7 K1 O
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
# V$ l& O# m* T! h/ o at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)3 P3 x, |( q1 E4 k0 {/ R
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)) ~% }7 [, I. I3 L6 x
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
' I0 f) q$ F: x, u0 ]9 y' ^2 e at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
, K' |! {) ]. y7 n; e/ `7 w9 g6 \ at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
4 L* v5 m. F3 X- j; h# ~5 @4 I at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
& W# ~; N* R8 c/ | [; j' c" T at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
5 u8 O& c) A# h. t7 o8 t. @ at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
' _' m; J- [4 |! F at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
3 V7 |9 X" ~; A: ?, f. {/ l at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452). L" I) ?7 q, `
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
8 M3 {8 M0 y: V4 | at java.awt.EventQueue.dispatchEvent(Unknown Source)
% [' g* l' @( k7 r/ o+ L at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
! y% u0 T+ X5 F/ x& j at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source); a; z$ O* ^- O
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)# l/ c [1 s) `! A9 S* E$ X( P0 E
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)0 c: P) {7 B) e Z# P# U
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
, G1 B0 ^2 D0 m" _8 t) p8 m at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
