[em04][em04][em04] 理解了,呵呵,本人比较愚钝。我也改进了一下这个代码,支持开槽的任意数量,和开槽的任意角度。 defun( _Create_Thermal ( od, id, spoke, n, ang) prog(( PI, r, x, y, arc, slice, a, b, c, p) PI = 3.141593 axlDBControl('activeLayer "etch/top") r = ( od + id)/4, x = ( od - id)/4 + spoke/2, y = sqrt( r*r - x*x ) spoke = asin( x/r)*2, slice = 2*PI/n, arc = slice - spoke a = -x:y, b = _CTRotatePt( a, arc) if( ang != 0 then ang = ang*PI/180.0, a = _CTRotatePt( a, ang), b = _CTRotatePt( b, ang)) for( i 1 n c = caar( axlDBCreatePath( axlPathArcCenter( axlPathStart( list( a)), ( od - id)/2, b, nil, 0:0))) p = axlPolyFromDB( c ?endCapType 'ROUND) axlDeleteObject( c) axlDBCreateShape( car( p) t) a = _CTRotatePt( a, slice), b = _CTRotatePt( b, slice) );end-for );end-prog );end-defun defun( _CTRotatePt ( pt, ang) prog(( x, y, nx, ny) x = car( pt) y = cadr( pt) nx = x*cos( ang) - y*sin( ang) ny = x*sin( ang) + y*cos( ang) return( nx:ny) );end-prog );end-defun
[此贴子已经被作者于2006-5-26 14:45:36编辑过] |