ZML184函数图面整理-批量折线等高线图幅线处打断
;|;;===========================================================================通用函数 ;
功能：求两个线条对象的交点 ;
适用对象: Line、Circle、Arc、Ellipse、Polyline、 ;
LWPolyline、3dPolyline、Spline ;
参数：OBJ1 ----对象1 ;
OBJ2 ----对象2 ;
Extend ----延伸选项 ;
0acExtendNone ;
1acExtendThisEntity ;
2acExtendOtherEntity ;
3acExtendBoth ;
ZZZ ----输出选项 ;
"=0"Z值取0 ;
"F1"取第一个对象上的点 ;
"F2"取第二个对象上的点 ;
"MAX" 取Z值大者 ;
"MIN" 取Z值小者 ;
Fuzz ----允许偏差值 ;
返回：若成功，返回点位表；否则返回nil
日期：zml84 于2007-11-05
;;|;
(vl-load-com)
(defun ZL-GETINTERS (OBJ1 OBJ2 EXTEND ZZZFUZZ / ENT1
ENT2 PT10 PT11 PT20PT21 OBJ11OBJ22
ARRAYLST LST_PT IPT PT1 PT2
Z1 Z2
)
;;0、对参数的格式化处理
(if (and (= (type EXTEND) 'INT)
(<= 0 EXTEND 3)
)
()
(setq EXTEND 0)
)
(setq ZZZ (strcase ZZZ))
;;======================
;;1、获取交点集合>>>>>>>
(if (and (= (vla-get-objectname OBJ1) "AcDbLine")
(= (vla-get-objectname OBJ2) "AcDbLine")
)
;;对直线对象(line) 特别处理
(progn
(setq ENT1 (entget (vlax-vla-object->ename OBJ1))
ENT2 (entget (vlax-vla-object->ename OBJ2))
)
(setq PT10 (assoc 10 ENT1)
PT11 (assoc 11 ENT1)
PT20 (assoc 10 ENT2)
PT21 (assoc 11 ENT2)
)
;;去除Z坐标
(setq PT10 (list (cadr PT10) (caddr PT10))
PT11 (list (cadr PT11) (caddr PT11))
PT20 (list (cadr PT20) (caddr PT20))
PT21 (list (cadr PT21) (caddr PT21))
)
(setq LST (inters PT10 PT11 PT20 PT21 t))
(if LST
(setq LST (append LST '(0)))
)
)
(progn
;;=====================
;;复制实体
(setq OBJ11 (vla-copy OBJ1)
OBJ22 (vla-copy OBJ2)
)
;;向xy平面投影，将Z坐标改为0
(TOXY OBJ11)
(TOXY OBJ22)
;;获取交点集合
(setq ARRAY (vla-intersectwith OBJ11 OBJ22 EXTEND))
;;删除复制后的对象
(vla-delete OBJ11)
(vla-delete OBJ22)
;;由数组转换为表
(if (and ARRAY
(> (vlax-safearray-get-u-bound
(vlax-variant-value ARRAY)
1
)
1
)
)
(progn
(setq LST (vlax-safearray->list
(vlax-variant-value ARRAY)
)
)
)
)
)
)
;;======================
;;2、分析整理>>>>>>>
(setq LST_PT '())
(if LST
(progn
(setq I 0)
(repeat (/ (length LST) 3)
;;2.1 获取当前点位
(setq PT (list (nth I LST)
(nth (+ 1 I) LST)
(nth (+ 2 I) LST)
)
)
;;2.2 获取对象上对应点位
(setq PT1 (vlax-curve-getclosestpointtoprojection
OBJ1
PT
'(0 0 1)
)
PT2 (vlax-curve-getclosestpointtoprojection
OBJ2
PT
'(0 0 1)
)
)
(setq Z1 (caddr PT1)
Z2 (caddr PT2)
)
;;2.3 效验偏差值
;;就是说：过滤:参数中有偏差值选项，却不满足要求的点位
(if (and FUZZ
(or (= (type FUZZ) 'REAL)
(= (type FUZZ) 'INT)
)
(not (equal Z1 Z2 FUZZ))
)
;; 空处理
()
;;2.4 对输出选项的处理
(progn
(cond
((= ZZZ "F1")
(setq PT PT1)
)
((= ZZZ "F2")
(setq PT PT2)
)
((= ZZZ "MAX")
(if (> Z1 Z2)
(setq PT PT1)
(setq PT PT2)
)
)
((= ZZZ "MIN")
(if (< Z1 Z2)
(setq PT PT1)
(setq PT PT2)
)
)
(t
(setq PT PT)
)
) ;_结束cond
(if (member PT LST_PT)
()
(setq LST_PT (cons PT LST_PT))
)
) ;_结束progn
) ;_结束if
(setq I (+ I 3))
) ;_结束repeat
) ;_结束progn
) ;_结束if
;;3、返回结果>>>>>
LST_PT
) ;_结束defun
;;;============================================================
;;;功能：曲线实体上每个控制点的z坐标值置为0.0
(defun TOXY (OBJ / NAME PT1 TP2)
;;取得实体的类型名称
(setq NAME (vla-get-objectname OBJ))
(cond
;;类型1
;;直线(line)
((= NAME "AcDbLine")
;;取得直线的起终点坐标
(setq PT1 (vlax-variant-value (vla-get-startpoint OBJ))
PT2 (vlax-variant-value (vla-get-endpoint OBJ))
)
;;改变z值为0.0
(vlax-safearray-put-element PT1 2 0.0)
(vlax-safearray-put-element PT2 2 0.0)
(vla-put-startpoint OBJ PT1)
(vla-put-endpoint OBJ PT2)
)
;;类型2
;;圆(circle)
;;圆弧(arc)
;;椭圆及椭圆弧(ellipse)
((or (= NAME "AcDbCircle")
(= NAME "AcDbArc")
(= NAME "AcDbEllipse")
)
;;取得中心点座标
(setq PT1 (vlax-variant-value (vla-get-center OBJ)))
;;改变中心点座标z值为0.0
(vlax-safearray-put-element PT1 2 0.0)
(vla-put-center OBJ PT1)
)
;;类型3
;;多段线(polyline、lwpolyline)
;;拟合的2维多段线(polyline、lwpolyline)
((or (= NAME "AcDbPolyline")
(= NAME "AcDb2dPolyline")
)
;;改变标高值为0.0
(vla-put-elevation OBJ 0.0)
)
;;类型4
;;三维多段线(3dpolyline)
((= NAME "AcDb3dPolyline")
;;取得3维多段线的控制点
(setq PT1 (vlax-variant-value (vla-get-coordinates OBJ))
I 0
)
(repeat (/ (length (vlax-safearray->list PT1)) 3)
(vlax-safearray-put-element PT1 (+ I 2) 0.0)
(setq I (+ I 3))
)
(vla-put-coordinates OBJ PT1)
)
;;类型5
;;样条曲线(Spline)
((= NAME "AcDbSpline")
;;取得样条曲线的拟合点
;;改变每个拟合点的z值为0.0
(setq PT1 (vlax-variant-value (vla-get-fitpoints OBJ))
I 0
)
(repeat (vla-get-numberoffitpoints OBJ)
(vlax-safearray-put-element PT1 (+ I 2) 0.0)
(setq I (+ I 3))
)
(vla-put-fitpoints OBJ PT1)
;;取得样条曲线的控制点
;;改变每个控制点的z值为0.0
(setq
PT2 (vlax-variant-value (vla-get-controlpoints OBJ))
I0
)
(repeat (vla-get-numberofcontrolpoints OBJ)
(vlax-safearray-put-element PT2 (+ I 2) 0.0)
(setq I (+ I 3))
)
(vla-put-controlpoints OBJ PT2)
)
(t NIL)
)
) ;_结束defun
;(setq ppzzxx (ZL-GETINTERS (vlax-ename->vla-object(car (entsel) ) ) (vlax-ename->vla-object(car (entsel) ) ) 0 "f2" nil) )
;;;;;;;;;;;;;;;;;;
;选择集与对象名表互转
(defun cx-ss2en
(ss / enlst)
(cond
((= (type ss) 'PICKSET)
(vl-remove-if-not '(lambda (x) (= (type x) 'ENAME)) (mapcar 'cadr (ssnamex SS)))
)
((= (type ss) 'LIST)
(setq enlst (ssadd))
(last (mapcar '(lambda (x) (ssadd x enlst)) ss))
)
((='ename(type ss))
(ssadd ss)
)
)
)
;;;;;;;;;;;;;;;;;;
(defun plinexy( e / e)
(mapcar'cdr(vl-remove-if'(lambda(x)(/=(car x)10))(entget e)))
)
;;;;;;;;;;;;
(defun c:jddd ( / pp i lst lst1 ent biao lsta y n)
(setq pp (car(entsel "\n请选择与之相交主线：")))
(setq biao '())
;(setq lst1 (ssadd))
(setq i 0)
(setq lst (ssget "x"'( (0 . "*line,arc,circle,spline") ) ) )
(repeat (sslength lst)
(setq ent (ssname lst i))
(if (and(/= (equal ent pp) t)
(/=(ZL-GETINTERS (vlax-ename->vla-object ent ) (vlax-ename->vla-object pp ) 0 "f2" nil) nil)
)
;(ssadd ent lst1)
(setq biao (append biao (ZL-GETINTERS (vlax-ename->vla-object ent ) (vlax-ename->vla-object pp ) 0 "f2" nil) ))
)
;(command "_.scale" ent "" (zxd ent) sc)
(setq i (+ i 1))
)
(mapcar'(lambda (n)
(setq lsta (ssget "x"'( (0 . "*line") ) ) )
(foreach y (cx-ss2en lsta)
(if(and (/= (equal pp y) t)
(<=(distance (vlax-curve-getClosestPointTo (vlax-ename->vla-object y) n) (vl-remove (last n)n)) 1e-4))
;(member x (plinexy y))
(vl-cmdf"._break" y "f" n "@")
)
)
)biao
)
(princ )
;(sssetfirst nil lst1)
) 由于地形图分幅时候2次或者3次拟合的等高线北裁断导致分幅图等高线节点增多、内存增大，可以先将等高线折线化，然后批量分幅线处打断，再拟合 然后分幅就不会了
拟合Cass命令过程为：PLINEWID
输入 PLINEWID 的新值 <0.0750>: 0.000000000000000
命令:
请选择拟合方式:(1)无(2)曲线(3)样条 <2>1 LAYER
当前图层:DGX
输入选项
[?/生成(M)/设置(S)/新建(N)/开(ON)/关(OFF)/颜色(C)/线型(L)/线宽(LW)/打印(P)/冻结(
F)/解冻(T)/锁定(LO)/解锁(U)/状态(A)]: s
输入要置为当前的图层名或 <选择对象>: 0 输入选项
[?/生成(M)/设置(S)/新建(N)/开(ON)/关(OFF)/颜色(C)/线型(L)/线宽(LW)/打印(P)/冻结(
F)/解冻(T)/锁定(LO)/解锁(U)/状态(A)]:
命令:
命令: n PLIND
D 不拟合/S 样条拟合/F 圆弧拟合<F> d
空回车选目标/<输入图层名>: dgx
命令: n PLIND
D 不拟合/S 样条拟合/F 圆弧拟合<F> s
空回车选目标/<输入图层名>: dgx 你现在对等高线和三角网已经研究的炉火纯青了呀 谢谢，非常感谢分享………… 很好→很棒！很好~很棒！！很好……很棒！！！感谢分享！
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