给多线段添加顶点的若干版本及问题求解
最近需要在一个道路横断面上增加与中桩线的交点作为新顶点，我按照自贡黄宏玉的代码，参考前辈的资料，自己编了一个，问题是运行后地面线变乱了，这样导出的线段与中桩的高差平距关系也就错了，请指点：完整代码如下：
;;----------------=={ 选择两条线，将交点添加到第一条线中，并导出高差平距数据 }==---------------;;
(defun C:TT (/ S1 S2 OBJ1 OBJ2 pt filename e n fn jd ptt pts number
str_1)
(vl-load-com)
(if (and (setq S1 (entsel "\n选择地面线："))
(setq S2 (entsel "\n选择中桩线："))
)
(progn (setq OBJ1 (vlax-ename->vla-object (car S1))
OBJ2 (vlax-ename->vla-object (car S2))
)
(setq ptlist (ZL-GETINTERS OBJ1 OBJ2 0 "F1" 0.05))
(setq pt1 (car ptlist)
pt2 (cdr ptlist)
)
)
)
(setq pt pt1)
(setq pt (mapcar '+ '(0 0) pt))
;;增加交点到第一条线中
(vlax-invoke OBJ1 'addvertex 2 pt)
(princ)
;;;本程序命令为hdmout,仅针对图纸比例为1：1的情况而言，若比例不是1：1，请自行调整图纸比例
;;;本程序需选择断面桩号、坐标系基准中心、选择基准中心处的断面高程数据
;;;本程序所获得的数据为追加形式，一次采取一条断面，可以累加
(setq
str_1 (cdr
(assoc 1 (entget (car (entsel "请选择一个断面桩号："))))
)
)
(setq point_1 pt1)
(setq px_1 (car point_1)
py_1 (cadr point_1)
)
(setq e55
(cdr
(assoc 1
(entget (car (entsel "\n 请选取该断面的中心高程数据:")))
)
)
)
(setq bb (vl-string->list e55))
(setq cc (vl-remove-if '(lambda (x) (> x 57)) bb))
(setq de (vl-remove-if '(lambda (x) (< x 43)) cc))
(setq height_1 (atof (vl-list->string de)))
(if (setq s (ssget ":S" '((0 . "*POLYLINE")))) ;_点选带过滤形式
(progn
(setq e (ssname s 0)
number (fix (vlax-curve-getendparam e))
n (+ 1 number)
)
(if (not (setq filename
(getfiled "选择文件存储目录" "d:/断面线数据.txt" "txt" 33)
)
)
(setq filename "c:\\断面线数据.txt")
)
(setq fn (open filename "a")
jd n
)
(WRITE-LINE
(strcat "BEIGIN " str_1)
fn
)
(setvar "dimdec" 3)
(repeat n
(setq ptt (vlax-curve-getpointatparam e (setq jd (1- jd))))
(if (null pts)
(setq pts (list ptt))
(if (not (equal ptt (car pts) 1e-3))
(setq pts (cons ptt pts))
)
)
)
(setq n 1)
(mapcar '(lambda (x)
(write-line
(strcat
(rtos (- (car x) px_1))
" "
(rtos (+ height_1 (- (cadr x) py_1))) ;_与前面的 dimzin 配合采用用户 UNITS 精度设置
)
fn
)
(setq n (1+ n))
)
pts
)
(WRITE-LINE "NEXT" fn)
(close fn)
)
)
(princ "\n")
)
;;;=========================================================================== 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 、BJ2 ----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 ZZZ FUZZ / ENT1
ENT2 PT10 PT11 PT20 PT21 OBJ11OBJ22
ARRAYLST LST_PT I PT 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))
I 0
)
(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 ;;;
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