天正cad和autocad区别 autocad2012三维情况下如何选取z不等于0的点，z0.01等于多少 _睿知

如何在AutoCAD2012中找到（0，0）点？
这就是所谓的原点。CAD中的原点是可以控制的。您可以在CAD中的任何位置绘制，然后将原点移动到您想要的位置。方法：输入UCS回车-回车M回车-现在可以点击你要放的原点了，希望对你有帮助。

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Matlab画三维图，z=xy+y，将z作出后，怎么将z=0的点作出来？
[rows，cols]=Find(z==min(min(ABS(z)))% Find横坐标和纵坐标t=zeros(length(rows))% Makeazeromatrixplot3(x(rows)，y(cols)，t)%为自己绘制和跟踪点。
AutoCAD的Z轴坐标始终是0
你好，视图中的那些命令是将2D转换成3D的。您可以单击视图中的西南等轴测，然后按直线并输入100，100，100以自动捕捉该坐标。2008版是2004版的升级版，只是加强了立体方面，并没有太大的区别。

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CAD2012选中目标之后，出来三维轴，怎么取消
输入命令vs并选择2D模式。
CAD里怎么将三维线改为二维？z坐标为0！！！
要不要把实体变成线？如果是，在X分解并看到一行中的实体后。然后选择(ctrla)右键特征然后在其上选择一条直线，将Z方向的起点改为0，终点改为0 。

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cad中怎样将Z轴的数值改为0
在AutoCAD中，Z坐标归零的方法有很多种，可以根据不同的环境来选择。当法线坐标为-1时，只需重新绘制一次就可以将对象重置为零，这样绘图就不会有任何问题。在默认法线坐标1的情况下，有两个流行的。1)选择除块以外的对象，将对象移动到Z无穷远，再移回来，坐标归零。然而，有一种情况是，如果对象本质上是无限的，它们将不能很好地工作。2)Z坐标归零增强版。原理是在AutoCAD中，所有对象都有属性，代码10~15为坐标，多段线的标高代码为38 。然后将这些Z坐标修改为0，满足Z变0的要求。也就是说，法线坐标不能被修改。代码如下：z坐标归零；(defunc: z0(/blockc10c38 entilens)(setvar” cmdecho” 0)(setvar” blipmode” 0)；包围盒的坐标(Defungetboundingbox(埃纳姆/LBUR)(Vla-Getboundingbox(VLAX-埃纳姆-Vla-Object埃纳姆)” lb” ur)(mapcar” VLAX-SafeArray-List(ListLBUR)))；运动物体的面积z为零(Defunmove-region-to-WCS-plan(ename/objz)(setqobj(vlax-ename-vla-objectename))(if(and(=” acdbregion“(vla-get-objectnameobj)))(/=0.0(setqz(caddr(car(getboundingboxename))))))(vla-moveobj(vlax-3d-point(list00z))(vlax-3d-point(list000)；句柄段10-15，包含z坐标和非零块码，设置z=0.0((and(=(carx)10)(=(carx)15)((lengthx)3)(/=0.0(nth3x)))(setQC10(1c10))(cons；处理38段(elevation属性)((and(=(carx)38)(/=0.0(cdrx)))(setQC38(1c38)”(38 . 0 . 0))；其余的组码按原样返回(TX)) (Defunzero-ent(e/DXF新)(SetQDXF(Entgete))(If(=(CDR(assoc0 DXF))” region“)(移动区域到WCS平面)(Progn(SetQ新(SetQ新))
f (not (equal dxf new))(entmod new))) ) new) (if (null vlax-mp-object) (vl-load-com) ) (princ “选择需要将Z坐标或标高属性清零的对象 : “) (if (null (setq ss (ssget))) (setq ss (ssget “X”)) ) (if ss(progn(setqlen (sslength ss) i 0 c10 0 c38 0)(vla-startundomark (vla-get-activedocument (vlax-get-acad-object)));; 块定义内实体归零(vlax-for block (vla-get-blocks (vla-get-activedocument (vlax-get-acad-object)))(vlax-for e block(zero-ent (vlax-vla-object->ename e))));;除块以外Z标高归零(repeat len(zero-ent (setq ent (ssname ss i)))(setq i (1+ i)))(vla-enndomark (vla-get-activedocument (vlax-get-acad-object)))(command “_.regen”)(princ (strcat “选择的 ” (itoa len)” 个对象中,\n” (itoa c10)” 个非零Z坐标, ” (itoa c38) ” 个标高属性被强制清零.”)))(princ “\n选择集为空”) ) (princ) )(defun C:tes ( / &ac0 &k1 &kw1 &ob1 mspace);重新描一遍对象;圆,椭圆,弧,直线,多段线 (setvar “cmdecho” 0) (setvar “blipmode” 0) (if (null vlax-mp-object) (vl-load-com) ) ;(command “UCS” “”) (setq mSpace (vla-get-ModelSpace (vla-get-ActiveDocument (vlax-get-acad-object))) &n4 0) (if (setq &kw1 (ssget “((0 . “CIRCLE,ELLIPSE,ARC,LINE,LWPOLYLINE”))));1(progn;;1(setq &n5 (rtos (sslength &kw1) 2 0))(while (setq &k1 (ssname &kw1 0));1(setq &kw1 (ssdel &k1 &kw1) &ob1 (vlax-ename->vla-object &k1) &ac0 (vla-get-objectname &ob1) &n6 0)(if (member &ac0 “(“AcDbArc” “AcDbCircle” “AcDbEllipse” “AcDbLine” “AcDbPolyline”)) (setq &n6 (T~20150708~1 &ob1 &ac0 mSpace)) )(setq &n4 (+ &n4 &n6))(vla-delete &ob1));while;1(princ (strcat “\n共处理了” &n5 “个曲线，” “共删除了长度小于0.05的曲线” (rtos &n4 2 0) “个”)));progn;1 );if;1 (prin1));;=============;重新描一遍对象;==============(defun T~20150708~1 (&ob1 &ac0 mSpace / &ac0 &ang1 &ang2 &ang3 &clo &co1 &cx1 &dis1 &dis2 &dis3 &end &n1 &n2 &n3 &ob1 &ob2 &p1 &p2 &p3 &p5 &r1 &ss1 &sta &tc1 aw ew mspace) (if (List (Vlax-Variant-Value &p3)) &p1 (list (car &p1) (cadr &p1)) &p3 (Vlax-3d-Point &p1))(if (member &ac0 “(“AcDbCircle” “AcDbArc”)) (setq &R1 (vla-get-radius &ob1)) )(if (member &ac0 “(“AcDbArc” “AcDbEllipse”)) (progn (setq &ang1 (vla-get-StartAngle &ob1) &ang2 (vla-get-EndAngle &ob1)) ))(if (= &ac0 “AcDbCircle”) (entmake (list “(0 . “CIRCLE”) (cons 8 &tc1) (cons 62 &co1) (cons 6 &cx1) (cons 10 &p1) (cons 40 &R1))) )(if (= &ac0 “AcDbArc”);3-1(progn;3-1(setq &dis1 (* (vlax-curve-getDistAtParam &ob1 (vlax-curve-getEndParam &ob1)) 0.5) &p5 (vlax-curve-getPointAtDist &ob1 &dis1) &p5 (list (car &p5) (cadr &p5)));(setq &ob2 (vla-addArc mSpace &p3 &R1 &ang1 &ang2));(vla-put-layer &ob2 &tc1) (vla-put-Color &ob2 &co1) (vla-put-Linetype &ob2 &cx1)(setq &ang1 (rem (angle &p1 &sta) (* pi 2)) &ang2 (rem (angle &p1 &end) (* pi 2)))(entmake (list “(0 . “ARC”) (cons 8 &tc1) (cons 62 &co1) (cons 6 &cx1) (cons 10 &p1) (cons 40 &R1) (cons 50 &ang1) (cons 51 &ang2)))(setq &ob2 (entlast) &ob2 (vlax-ename->vla-object &ob2))(setq &dis1 (* (vlax-curve-getDistAtParam &ob2 (vlax-curve-getEndParam &ob2)) 0.5) &p2 (vlax-curve-getPointAtDist &ob2 &dis1))(if (>= (distance &p5 &p2) &R1);3-2(progn;;3-2(vla-delete &ob2)(entmake (list “(0 . “ARC”) (cons 8 &tc1) (cons 62 &co1) (cons 6 &cx1) (cons 10 &p1) (cons 40 &R1) (cons 50 &ang2) (cons 51 &ang1))));progn;3-2);if;3-2);progn;3-1);if;3-1(if (= &ac0 “AcDbEllipse”);3-3(progn;;3-3(setq &p2 (vla-get-MajorAxis &ob1)&p2 (Vlax-SafeArray->List (Vlax-Variant-Value &p2))&p2 (list (car &p2) (cadr &p2))&p2 (Vlax-3d-Point &p2)&dis3 (vla-get-MinorRadius &ob1)&dis2 (vla-get-MajorRadius &ob1)&dis2 (/ &dis3 &dis2))(setq &ob2 (vla-addEllipse mSpace &p3 &p2 &dis2))(vla-put-StartAngle &ob2 &ang1)(vla-put-EndAngle &ob2 &ang2)(vla-put-layer &ob2 &tc1) (vla-put-Color &ob2 &co1) (vla-put-Linetype &ob2 &cx1)(if (= aw nil) ;3-4(progn;;3-4(setq &ang3 (- (* pi 2) &ang2) &ang2 (- (* pi 2) &ang1) &ang1 &ang3)(setq &p5 (vlax-curve-getStartPoint &ob2))(if (>= (distance &p5 &sta) 0.01);3-5(progn;;3-5(vla-put-StartAngle &ob2 &ang1)(vla-put-EndAngle &ob2 &ang2));progn;3-5);if;3-5);progn;3-4);if;3-4);progn;3-3);3-3);progn;2);if;2(if (= &ac0 “AcDbLine”) (entmake (list “(0 . “LINE”) (cons 8 &tc1) (cons 62 &co1) (cons 6 &cx1) (cons 10 &sta) (cons 11 &end))) )(if (= &ac0 “AcDbPolyline”);4(progn;;4(setq &n1 (fix (vlax-curve-getEndParam &ob1)) &ss1 “() &n2 0 &p2 nil)(if aw (setq &clo “(70 . 1)) (progn (setq &clo “(70 . 0) &n1 (1+ &n1)) ))(repeat &n1(setq &p1 (vlax-curve-getPointAtDist &ob1 (vlax-curve-getDistAtParam &ob1 &n2)))(if (or (= &p2 nil) (and (/= &p2 nil) (> (distance &p2 &p1) 1)))(progn(setq &p1 (list (car &p1) (cadr &p1)))(setq &ss1 (cons (cons 10 &p1) &ss1))(vla-getwidth &ob1 &n2 “aw “ew)(setq &ss1 (cons (cons 40 aw) &ss1) &ss1 (cons (cons 41 ew) &ss1))(setq aw (vla-getBulge &ob1 &n2) &ss1 (cons (cons 42 aw) &ss1))))(if (and (/= &p2 nil) ( (length &ss1) 4) (entmake (append (list “(0 . “LWPOLYLINE”) “(100 . “AcDbEntity”) (cons 8 &tc1) (cons 62 &co1) (cons 6 &cx1) “(100 . “AcDbPolyline”) (cons 90 (/ (length &ss1) 4)) &clo ) &ss1)) ));progn;4);if;4);progn;1 );if;1 &n3);;复制到记事本,以【.lsp】为后缀命名,打开CAD，autolisp加载，命令【TES】，就会把对象重新描一遍
【天正cad和autocad区别 autocad2012三维情况下如何选取z不等于0的点，z0.01等于多少】