請教特殊彈簧劃法

dunkill

請教各位先進
如何畫出由圓形彈簧漸漸變成楕圓形ㄋ
使用螺旋掃瞄就只有圓形
是否有辦法變成楕園ㄋ

brilli

先做一螺旋曲线，然后用混合扫描可成。<img src="attachments/dvbbs/200371915514654167.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/200371915514654167.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/20037191552114594.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/20037191552114594.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

dunkill

各位先進ㄚ
我所探討的問題點不在於截面的形狀
而是在於整個彈簧的外形
上面那位大哥您會錯意摟

brilli

各位不好意思，会意错误，正确画法如下。<img src="attachments/dvbbs/200371923575348889.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/200371923575348889.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/20037192358552018.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/20037192358552018.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/200371923582060142.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/200371923582060142.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

ganjue1980

这个和画一般弹簧的区别在于轨迹线吧。

psuy

先画弹簧轨迹线，在做放样

zhangfeng

曲线是用方程的吗？