[练习]运动模拟

cefrykl

以下是引用shsoso在2004-5-10 17:22:24的发言：
第一题难就难在要在一个模拟的过程中实现多次的往复。我是按照cefrykl大大在教学的帖子中利用“它人之力“来驱动的，即多加一个零件，再隐藏。

锥齿轮传动一题我先选择两个齿轮的两点，设置平行距离，用菜单栏工具下的干涉检查，如果有干涉，则调整平行距离，直到出现干涉为零，然后保持这个状态，删除这个平行距离的配合。这样起始位置就能保持不干涉了，这个方法我觉得也不是很好，相当于手动调整了，不知您是如何解决的。

这是爬楼梯的特征树，这题应该有多种配合方式，不同的搭配能找出多种方法

最后一题有难度，想了很久没想出来，版大能否提供一点思路，谢谢[em57][em57][em57]

[此贴子已经被作者于2004-5-10 17:33:14编辑过]

锥齿轮那个，实际上我加了两个草图，然后添加了一个重合关系，和教程里那个齿轮传动的方法是一样的。
爬楼梯那个，你这个做法属于有去无回的那种，题意是要求可以多次上下往返的。
最后一题的关键是直线运动和旋转运动的同步，做法和爬楼梯有很密切的关系，呵呵[em14]

shsoso

shsoso

sun1687168

我也来试一下，明天交作业

shsoso

再来一个
正反转圈，早上想出来的思路
在一个过程中实现
<img src="attachments/dvbbs/2004-5/200451110265353841.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/200451110265353841.gif\');}" onmousewheel="return imgzoom(this);" alt="" />


贴一下特征树

<img src="attachments/dvbbs/2004-5/200451111451297280.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/200451111451297280.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />


好了 ＋30

cefrykl

以下是引用shsoso在2004-5-11 10:23:34的发言：
再来一个
正反转圈，早上想出来的思路
在一个过程中实现
<img src="attachments/dvbbs/2004-5/200451110265353841.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/200451110265353841.gif\');}" onmousewheel="return imgzoom(this);" alt="" />


贴一下特征树

<img src="attachments/dvbbs/2004-5/200451111451297280.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/200451111451297280.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

[此贴子已经被作者于2004-5-11 11:46:06编辑过]

好了 ＋30

foxlicc

foxlicc

向楼主学习<img src="attachments/dvbbs/2004-5/200451116532549495.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/200451116532549495.gif\');}" onmousewheel="return imgzoom(this);" alt="" />

+20

boge

cefrykl

herzat

学习中

foxlicc

向楼主学习<img src="attachments/dvbbs/2004-5/20045141001612831.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/20045141001612831.gif\');}" onmousewheel="return imgzoom(this);" alt="" />

+20

foxlicc

向楼主学习<img src="attachments/dvbbs/2004-5/20045177202795335.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/20045177202795335.gif\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2004-5/20045177204326598.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-5/20045177204326598.gif\');}" onmousewheel="return imgzoom(this);" alt="" />

+20

demon18

还好,不错

hzm76

马上开始

hzm76

来了

zhengfu0

大家好 用什么工具制作GIF动画？？
谢谢  急呀 想得这些分了！

zhengfu0

太荒凉了！！每人理睬？？

zhengfu0

看看 我做的！！<img src="attachments/dvbbs/2004-6/20046314445262824.gif" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2004-6/20046314445262824.gif\');}" onmousewheel="return imgzoom(this);" alt="" />

+20

lwl886

正是不错，高手多多益善亚