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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
& T, G* ~$ @% K: Q( C! I9 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
' s1 F. ^1 S1 J7 b6 ]" n$ Y, W- O' d% j 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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9 v* S. S) R1 C9 [感谢感谢. N0 V4 _1 Q8 p2 l, \9 n( V
错误如下：
# J; ^8 @- p% D2 ] x1 d+ [; C: g D: ~& T
Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException0 Y3 c& r) ^; f. M Q
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)6 d0 }* z/ G! O
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
$ H. j& b6 K1 B6 Y" P6 u at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
; D- G2 g$ I3 V- `! W( b at saf.v3d.Canvas2D.update(Canvas2D.java:113)
% V! y3 @( Y) N8 ? at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)5 }2 H/ C0 n& G/ y# \
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)0 N# A m! v4 N8 ]: N( S
at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
# R" }2 E" Y4 {' P0 h+ o* q at java.lang.Thread.run(Unknown Source)# c8 g0 {6 \3 @& {' D6 X6 I
Caused by: java.lang.NullPointerException
! m& ~% r# f3 Z at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
~3 I% B" e' Z3 ] at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)2 t0 `/ P x; i
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
3 h/ L3 w+ f& I2 i; c' G+ ~" J at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56), C8 A! D% {3 ?( d) H# O# G
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
$ K' ~7 G- I% O% B o at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
7 W& s. v& z/ g8 B) |; a U, ^* U at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
0 Q4 }4 f/ w1 v2 |# g3 p6 l at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
% \7 Z/ B1 x: W6 r) q) ^/ [ A at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
6 K ~5 p4 m! b, f4 P/ ] at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)
# y6 Y7 T5 m1 O) U! ~ at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)) x2 t# X4 [3 W6 q/ D
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
( W% I9 D7 w1 ?6 C0 u+ }1 Y6 H, z at java.awt.event.InvocationEvent.dispatch(Unknown Source)
+ z3 D7 q% Y U& R at java.awt.EventQueue.dispatchEvent(Unknown Source)
4 V ]6 [. g8 ]9 G8 | at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)$ r/ \# E! x( B( F
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) W# N% A& Y9 }
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)6 O$ L% P4 f1 R. h
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
& J4 H& P, T. l7 z1 f at java.awt.EventDispatchThread.pumpEvents(Unknown Source)2 f8 t7 s2 u9 _: p9 _
at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
