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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
% f R1 B( @1 ^. G4 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
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) ^& j# H' t( h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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' }( x$ L& C0 }3 g b( E感谢感谢
2 \" E( o& O5 r$ k8 F: V错误如下：
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
3 M) B8 T& A' U8 d7 g at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)- H8 f. P. [4 i
at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
. a' e0 x1 v2 @ a at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
8 _" G! n: x9 j4 W' R- { at saf.v3d.Canvas2D.update(Canvas2D.java:113)
& j! L, i8 i0 ~ T* }0 F Q) i4 a at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358), y" M0 M: ^, z5 `# [8 X$ Z, ^
at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
y' C6 ]5 a. U# R. G2 e at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
6 _% g& Q! p: m( s4 A! e" X; }- k. Y at java.lang.Thread.run(Unknown Source)1 L3 C9 l, u9 O
Caused by: java.lang.NullPointerException% n e0 z8 u0 b3 y
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
+ t% W1 E1 i9 k) f6 _ at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)6 n4 n( l/ a% z( ]
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
+ ?! d6 s% `$ h0 F; i at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)) Q3 b; K3 H+ {+ Y' g6 J
at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)
2 |% R' W! R, @1 s3 E at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)$ _/ G% [3 N+ F: X. _5 j4 P9 B: d
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
+ R* i# @8 z6 k8 x, j5 z( [$ z at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)# d' z: X0 z$ W
at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
1 P4 s% b# h: a5 s. Y0 I p# ~; C9 ^ at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)) L$ C# d" J [- y: e" Q$ ]3 ?0 \
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)7 Z1 i. Z2 J4 d, A6 F, m* t6 r
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)3 O) F- H1 F# \& G$ I
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
% v# T$ g4 j3 O% Y# S& b# M at java.awt.EventQueue.dispatchEvent(Unknown Source)0 `6 X: X" {2 l, p
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)" [3 o, o; `2 f3 o+ R$ S
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)# |4 A% u f7 i7 I2 J z
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)0 P. o9 j+ f* Y i
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) e# q( h0 c8 U" g
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
- u5 @* z! w4 |0 K3 k" z2 g( h at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
