拾取单点元素，包含：表面点，边界点，线点。
1.测点选取设置-CAD点型图形定义
(1),表面点拾取，拾取CAD表面任一点，如下图：
(2),边界点拾取，拾取CAD模型边界上的点，点击面不同，拾取点矢量不同，如下图：
(3),线点拾取，顾名思义就是轮廓线上拾取点元素，导入模型时要选取线性，轮廓。如下图：
拾取结果如下图：
（4），薄板边界，可拾取表面2维元素，因为在线拾取中无法直接抓取到，椭圆，键槽，正多边形元素，所以，我们可用此功能抓取。如下图：
（5），薄板边点，对于薄壁件，变形量大一种测量，如下图：
1，创建表面点，2，创建边界点，如下图：
$$/* Header
DMISMN/'Created by [山涧果子] on 星期一, 九月 11, 2023', 4.0
UNITS/MM, ANGDEC, MMPS
WKPLAN/XYPLAN
PRCOMP/ON
TECOMP/ON
FLY/1.0000
MODE/PROG, MAN
SNSET/APPRCH, 2.0000
SNSET/RETRCT, 2.0000
SNSET/DEPTH, 0.5000
SNSET/SEARCH, 10.0000
SNSET/CLRSRF, 35.0000
RECALL/D(MCS)
SNSLCT/S(D2L30)
GEOALG/BF, LSTSQR
GEOALG/ANGLB, DEFALT
GEOALG/CIRCLE, LSTSQR
GEOALG/ARC, LSTSQR
GEOALG/PLANE, LSTSQR
$$
$$
$$*/
MODE/PROG,MAN
F(PLN1)=FEAT/PLANE,CART,31.2500,46.8106,35.0000,0.0000,0.0000,1.0000
SNSET/APPRCH, 2.0000
SNSET/RETRCT, 2.0000
SNSET/DEPTH, 0.5000
SNSET/SEARCH, 4
SNSET/CLRSRF, F(PLN1), 35.0000
F(PT1)=FEAT/POINT,CART,5.3226,83.1379,35.0000,0.0000,0.0000,1.0000
F(PT2)=FEAT/POINT,CART,4.2993,28.5030,35.0000,0.0000,0.0000,1.0000
F(PT3)=FEAT/POINT,CART,81.3561,10.9129,35.0000,0.0000,0.0000,1.0000
F(PT4)=FEAT/POINT,CART,115.9282,51.2958,35.0000,0.0000,0.0000,1.0000
F(PT5)=FEAT/POINT,CART,105.3272,110.9816,23.7876,0.0000,0.3685,0.9296
F(PT6)=FEAT/POINT,CART,4.0702,114.6289,32.1469,0.0000,0.1311,0.9914
F(PT7)=FEAT/POINT,CART,25.3029,95.2324,34.7980,0.0000,0.0967,0.9953
$$ CALL/M(EASI_CLEARPLN_GOTO), 0, 5.3226, 83.1379, 38.0000
MEAS/POINT, F(PT1), 1
GOTO/CART, 5.3226,83.1379,71.0000
PTMEAS/CART, 5.3226,83.1379,35.0000,0.0000,0.0000,1.0000
ENDMES
$$ CALL/M(EASI_CLEARPLN_GOTO), 0, 4.2993, 28.5030, 38.0000
MEAS/POINT, F(PT2), 1
GOTO/CART, 4.2993,28.5030,71.0000
PTMEAS/CART, 4.2993,28.5030,35.0000,0.0000,0.0000,1.0000
ENDMES
$$ CALL/M(EASI_CLEARPLN_GOTO), 0, 81.3561, 10.9129, 38.0000
MEAS/POINT, F(PT3), 1
GOTO/CART, 81.3561,10.9129,71.0000
PTMEAS/CART, 81.3561,10.9129,35.0000,0.0000,0.0000,1.0000
ENDMES
$$ CALL/M(EASI_CLEARPLN_GOTO), 0, 115.9282, 51.2958, 38.0000
MEAS/POINT, F(PT4), 1
GOTO/CART, 115.9282,51.2958,71.0000
PTMEAS/CART, 115.9282,51.2958,35.0000,0.0000,0.0000,1.0000
ENDMES
$$ CALL/M(EASI_CLEARPLN_GOTO), 0, 105.3272, 112.0871, 26.5765
MEAS/POINT, F(PT5), 1
GOTO/CART, 105.3272,112.0871,71.0000
PTMEAS/CART, 105.3272,110.9816,23.7876,0.0000,0.3685,0.9296
ENDMES
$$ CALL/M(EASI_CLEARPLN_GOTO), 0, 4.0702, 115.0223, 35.1210
MEAS/POINT, F(PT6), 1
GOTO/CART, 4.0702,115.0223,71.0000
PTMEAS/CART, 4.0702,114.6289,32.1469,0.0000,0.1311,0.9914
ENDMES
$$ CALL/M(EASI_CLEARPLN_GOTO), 0, 25.3029, 95.5223, 37.7840
MEAS/POINT, F(PT7), 1
GOTO/CART, 25.3029,95.5223,71.0000
PTMEAS/CART, 25.3029,95.2324,34.7980,0.0000,0.0967,0.9953
ENDMES
F(EP1)=FEAT/EDGEPT,CART,87.6886,0.0000,35.0000,0.0000,-1.0000,0.0000,0.0000,0.0000,1.0000
$$ CALL/M(EASI_CLEARPLN_GOTO), 0, 87.6886, -3.0000, 34.5000
MEAS/EDGEPT, F(EP1), 1
GOTO/CART, 87.6886,-3.0000,71.0000
PTMEAS/CART, 87.6886,0.0000,34.5000,0.0000,-1.0000,0.0000
ENDMES