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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1 ^% W0 U/ t( D* h6 O0 ?
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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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. F& q% M8 f! n5 W感谢感谢
0 \4 q% ?+ G% ?6 i8 K错误如下：! m7 q+ C7 E* n$ o
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Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException
- _; }) c! Q1 n' q/ } at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
: U, @6 j! A/ _" {1 h at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)
4 j* F9 _! }" ]+ `7 T% N4 S at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)
' \3 [% n8 u) y( I; \ at saf.v3d.Canvas2D.update(Canvas2D.java:113)
+ {* _# {4 @6 k- e0 ~0 Z at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
) _0 U0 D2 g g at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
8 ?- |/ s& k7 q; O at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
+ R( C+ k7 E$ L" y; { at java.lang.Thread.run(Unknown Source)
6 l* Z. L5 @" ACaused by: java.lang.NullPointerException5 g% O X' s" I
at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)
' Z; l% A% p5 B9 u at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
) F% l) @7 f% y) L7 {3 r at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)8 {1 E$ P6 p* t; U) V m$ h$ P! y
at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
3 T0 _7 M# D) |* v8 L# j: r5 p" ~ at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)& l x/ u# @2 S
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)& T' ^. ^2 `- N" s
at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
$ _* a, ~1 u- b/ R$ j1 Y+ l at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
: e% X$ u3 ^9 S( s at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)
: w0 ?: e2 \5 t) e3 ]. g at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)& p4 {! N' E. Q1 G8 B
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)
% U$ ], T) ^0 i% P4 c at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452)
; V5 N) M' @2 W' P4 k- l at java.awt.event.InvocationEvent.dispatch(Unknown Source)' |) m! c1 h0 [/ ]( Y0 @
at java.awt.EventQueue.dispatchEvent(Unknown Source)3 n1 S j" ]9 g2 y: X3 n
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)3 b" u2 p. Q7 M* l& X& F7 Q0 y- t
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source), Z# ` t- f$ o5 N/ B' {2 U$ ? d( R
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
M. ^7 G/ c. B7 H at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
: v6 j& s5 W. ^ d; I2 Y at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
% o0 c+ b( A" I4 p at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
