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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2 B# {/ P4 J) C ^; h o4 B
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# g2 V2 C7 Q/ P
* g* S* s( V# R. B1 r. ?9 |5 K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
5 @5 @( d/ V& w" p |( F8 {" |+ u$ \" K. L
感谢感谢
7 t8 R! f4 O# |: w4 F+ q, B错误如下：) ?# p" r8 H. w$ {' {
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException2 t. C* ]9 X! g4 E, y8 V. X/ g9 k- D
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
" ]9 K" k' U) i1 ^) Z& `0 Z: x$ d# U. ~ at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
4 e; _- l& U9 E J. O) U$ h at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)% C6 x4 {3 {2 b. \; u
at saf.v3d.Canvas2D.update(Canvas2D.java:113)
: g2 ^& I+ p' U at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)8 A" v9 I$ d. g4 f; T+ @
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)% a8 i6 L8 P. Y7 Q
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
2 \2 Q" C, e; p3 O$ t' K. f at java.lang.Thread.run(Unknown Source)
! K" R" c" N7 ]: r; e \" JCaused by: java.lang.NullPointerException
) z% I a p S; {3 u" g; o at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)3 I* }# a- W$ \
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
9 n: D1 |' ?# b- {. ^& j at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
! D- c2 o! q& K at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
+ s; r! d% Z3 y( p+ @ at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
5 t R& S% X$ K, n at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
0 n8 j5 P9 K0 N% y q at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)' v8 M! C: b( f9 k7 e( \4 `
at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
J5 d+ Q' p" \, r at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85): c2 @; f! r( R2 z+ m |
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)- l3 p( l4 o5 P5 q4 o- B" O( V" \: u
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)" U2 F8 g$ A! X, k4 h
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
4 w( p) D v3 s, R' M+ J ~ at java.awt.event.InvocationEvent.dispatch(Unknown Source). Y$ ^( i8 N% s, N4 R
at java.awt.EventQueue.dispatchEvent(Unknown Source)
9 {* P! @) a, k$ ~1 [6 U6 B9 J at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source): @' }# I2 i4 W. f
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
( @2 L, ~2 a, e) z at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
0 d4 V$ W4 K( E2 [5 T& }2 `: x" V, J at java.awt.EventDispatchThread.pumpEvents(Unknown Source)8 W5 X) |( v7 d
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
: Q; b4 G& A# ?' x5 A+ G at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
