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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
/ x* Y8 \" G6 I6 [& l8 P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7 N% s z7 B8 @3 p
5 F3 h" e; A. t$ g7 f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
( b$ d. U- @2 y/ i/ m
, Y+ z8 B; c; t' I感谢感谢
# [7 v% N( `( i M' s* J5 O错误如下：
4 _! v |0 U6 r. ]6 c1 _3 j& d: I8 n8 w5 o: \
Exception in thread "Thread-4" javax.media.opengl.GLException: java.lang.NullPointerException& @2 r$ ]; m- d
at javax.media.opengl.Threading.invokeOnOpenGLThread(Threading.java:271)
- Z3 z; @/ Z0 X at javax.media.opengl.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:410)) ?2 J' {3 ?2 j- ]+ |& B" v
at javax.media.opengl.GLCanvas.display(GLCanvas.java:244)( V3 e1 p0 h; w: Y( C; Z8 T
at saf.v3d.Canvas2D.update(Canvas2D.java:113)8 y% p2 \- t# U9 ]* B( X
at repast.simphony.visualizationOGL2D.DisplayOGL2D.setPause(DisplayOGL2D.java:358)
4 I2 S$ o5 e. ^' Y3 G: ]& b at repast.simphony.render.RendererManager.setPause(RendererManager.java:57)
, T! C/ {2 `$ C4 S at repast.simphony.ui.GUIScheduleRunner$ScheduleLoopRunnable.run(GUIScheduleRunner.java:46)
* t( M, o% B1 c% o$ B5 L$ ^ h& C5 } at java.lang.Thread.run(Unknown Source)
. y5 s) G# @: i4 \6 t0 k( zCaused by: java.lang.NullPointerException
" S8 d# }& \. d) K at saf.v3d.scene.VEdge2D.doGetBoundingSphere(VEdge2D.java:130)+ S' A+ K2 \; t g& H2 o( e
at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
8 _9 A8 m) X5 L: ? O at saf.v3d.scene.VComposite.doGetBoundingSphere(VComposite.java:88)
" \1 a) y; `' ?5 ? at saf.v3d.scene.VRoot.doGetBoundingSphere(VRoot.java:56)
% {1 Q P. T4 N! T1 Q at saf.v3d.scene.VSpatial.getBoundingSphere(VSpatial.java:439)$ ?9 C* j" ?9 u/ x% P5 H; }
at saf.v3d.scene.Camera.resetAndCenter(Camera.java:58)
- S) P4 F1 H+ e/ m at saf.v3d.Canvas2D.centerScene(Canvas2D.java:273)
% }7 P; H2 ?6 R. T at saf.v3d.Canvas2D.reshape(Canvas2D.java:302)
$ k$ H, @, z" X& k( b! q at com.sun.opengl.impl.GLDrawableHelper.reshape(GLDrawableHelper.java:85)! K# ~7 `0 u$ N1 t
at javax.media.opengl.GLCanvas$DisplayAction.run(GLCanvas.java:431)/ p/ Q4 h* W. R+ X
at com.sun.opengl.impl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:194)( w, r& V6 b" ~' j1 t1 O
at javax.media.opengl.GLCanvas$DisplayOnEventDispatchThreadAction.run(GLCanvas.java:452), }, j! \* {; E# H: |
at java.awt.event.InvocationEvent.dispatch(Unknown Source)8 p# G# I% ~6 z2 [% f- G3 _8 x
at java.awt.EventQueue.dispatchEvent(Unknown Source)
: |; `8 _8 e @& X) V, t/ R at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
' A: A9 Z& K N6 ?- x. G0 Q at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
( r5 k9 M) E/ l3 p) [! L# ~ at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) a1 t4 |& J7 e7 g
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)1 \, @- z5 C, @5 `
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
6 L9 m7 Z1 z. g! i/ u q at java.awt.EventDispatchThread.run(Unknown Source) |
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发表于 2011-8-14 15:50:58
