RationalDMIS 2020 自动测量圆_数模
1.元素定义标称圆

在测量圆之前我们首先需要按照图纸要求建立对应的坐标系，然后根据现有的条件来决定如何创建名义圆。

I.有CAD模型的情况
产品有数模的情况，导入模型后和零件坐标系对齐，然后使用CAD线型定义选取目标圆即可得到该圆，如下图中的CIR1。

RationalDMIS 2020 自动测量圆_操作方法_02

RationalDMIS 2020 自动测量圆_右键_03

RationalDMIS 2020 自动测量圆_数模_04

F(CIR1)=FEAT/CIRCLE,INNER,CART,57.1500,81.2800,-3.0000,0.0000,0.0000,1.0000, 50.8000
$$ Measurement points are created through nominal points
$$ CALL/M(EASI_CLEARPLN_GOTO), 1, -3.0000, 21.2847, 21.0000
MEAS/CIRCLE, F(CIR1), 12
  GOTO/CART,   -3.0000,  21.2847, 21.0000
  GOTO/CART,   41.2904,  65.4612, 21.0000
  GOTO/CART,   41.2904,  65.4612, 17.0000
  PTMEAS/CART, 39.1664,  63.3426, -3.0000,  0.7080,  0.7062,  0.0000
  GOTO/CART,   37.7366,  70.1050, -3.0000
  PTMEAS/CART, 32.6070,  74.7376, -3.0000,  0.9663,  0.2576,  0.0000
  PTMEAS/CART, 32.6240,  87.8856, -3.0000,  0.9656, -0.2601,  0.0000
  PTMEAS/CART, 39.2126,  99.2636, -3.0000,  0.7062, -0.7080,  0.0000
  PTMEAS/CART, 50.6076, 105.8230, -3.0000,  0.2576, -0.9663,  0.0000
  GOTO/CART,   57.1788, 103.6800, -3.0000
  PTMEAS/CART, 63.7556, 105.8060, -3.0000, -0.2601, -0.9656, -0.0000
  GOTO/CART,   68.3750, 100.6645, -3.0000
  PTMEAS/CART, 75.1336,  99.2174, -3.0000, -0.7080, -0.7062, -0.0000
  GOTO/CART,   76.5634,  92.4550, -3.0000
  PTMEAS/CART, 81.6930,  87.8224, -3.0000, -0.9663, -0.2576, -0.0000
  PTMEAS/CART, 81.6760,  74.6744, -3.0000, -0.9656,  0.2601,  0.0000
  GOTO/CART,   76.5345,  70.0550, -3.0000
  PTMEAS/CART, 75.0874,  63.2964, -3.0000, -0.7062,  0.7080,  0.0000
  PTMEAS/CART, 63.6924,  56.7370, -3.0000, -0.2576,  0.9663,  0.0000
  GOTO/CART,   57.1212,  58.8800, -3.0000
  PTMEAS/CART, 50.5444,  56.7540, -3.0000,  0.2601,  0.9656,  0.0000
  GOTO/CART,   51.3246,  59.6507, 17.0000
ENDMES

II.没有CAD模型

产品没有CAD模型时，我们需要使用到元素定义窗口，根据图纸上的标注将圆的位置转化为当前坐标系下的坐标值，输入所需参数后点击添加元素得到名义圆。

RationalDMIS 2020 自动测量圆_数模_05
如上图中所定义的CIR2坐标值为（45，60，-3），所在投影面的平面矢量为（0，0，1）,直径D为80.圆的类型为内圆。确保这些参数完整且准确后点击添加理论即可得到圆的理论元素。

2.设定目标圆的测轨迹

本文将介绍除了使用操作手柄录入轨迹的另外4种方法来编辑圆的测量轨迹。分别是：产生测量点，产生测量点II,自动测量，和拖放测量。

RationalDMIS 2020 自动测量圆_操作方法_06
I.自动测量圆

RationalDMIS 2020 自动测量圆_右键_07
使用自动测量圆之前，首先需要在设置界面设定好圆特征自动测量的点数，如上图所示将圆的测量点数设置为固定值4个点，自动测量就会产生4个测点。自动测量的操作方法：选中目标圆，点击右键选择自动测量，即可生成测量轨迹，并可记录到DMIS编辑器中。

RationalDMIS 2020 自动测量圆_操作方法_08

F(CIR2)=FEAT/CIRCLE,INNER,CART,127.0000,152.4000,-3.0000,0.0000,0.0000,1.0000, 12.7000
MODE/AUTO, PROG, MAN

$$ Empty Meas Block
MEAS/CIRCLE, F(CIR2), 4

ENDMES
MODE/PROG, MAN

II.拖放测量

首先还是在设置中设置好测量点数，然后鼠标左键拖动目标圆至DMIS窗口的拖放测量块图标上，显示+的符号时松开鼠标左键即可生成测量轨迹的DMIS命令。
RationalDMIS 2020 自动测量圆_数模_09

MODE/PROG, MAN
F(CIR3)=FEAT/CIRCLE,INNER,CART,127.0000,76.2000,-3.0000,0.0000,0.0000,1.0000, 12.7000
$$ Measurement points are created through nominal points
$$ CALL/M(EASI_CLEARPLN_GOTO), 1, 124.0601, 77.8061, 21.0000
MEAS/CIRCLE, F(CIR3), 4
  GOTO/CART,   124.0601, 77.8061, 21.0000
  PTMEAS/CART, 121.4274, 79.2444, -3.0000,  0.8776, -0.4794,  0.0000
  GOTO/CART,   124.8985, 78.8089, -3.0000
  PTMEAS/CART, 125.2122, 82.2931, -3.0000,  0.2815, -0.9595, -0.0000
  GOTO/CART,   127.3588, 79.5307, -3.0000
  PTMEAS/CART, 130.0444, 81.7726, -3.0000, -0.4794, -0.8776,  0.0000
  GOTO/CART,   129.6089, 78.3015, -3.0000
  PTMEAS/CART, 133.0931, 77.9878, -3.0000, -0.9595, -0.2815, -0.0000
  GOTO/CART,   130.2145, 77.1432, 21.0000
ENDMES

III.产生测量点
选中目标圆点击鼠标右键，选择产生测量点，会出现下图图1中的窗口，在窗口中我们可以调整圆的测量深度，测量起点的位置，测量的角度，时针方向，测量点数等参数。

RationalDMIS 2020 自动测量圆_右键_10
IV.产生测量点II
产生测量点II和产生测量点调整的方法类似，界面更简洁，适合不同人群的操作习惯。

RationalDMIS 2020 自动测量圆_数模_11

F(CIR4)=FEAT/CIRCLE,INNER,CART,127.0000,228.6000,-3.0000,0.0000,0.0000,1.0000, 12.7000
$$ CALL/M(EASI_CLEARPLN_GOTO), 1, 127.0000, 225.2500, -3.0000
MEAS/CIRCLE, F(CIR4), 12
  PTMEAS/CART, 127.0000, 222.2500, -3.0000,   0.0000,   1.0000,  0.0000
  GOTO/ARC,    128.6750, 225.6988, -3.0000, 127.8670, 225.3641, -3.0000
  PTMEAS/CART, 130.1750, 223.1007, -3.0000,  -0.5000,   0.8660,  0.0000
  GOTO/ARC,    129.9012, 226.9250, -3.0000, 129.3688, 226.2312, -3.0000
  PTMEAS/CART, 132.4993, 225.4250, -3.0000,  -0.8660,   0.5000,  0.0000
  GOTO/ARC,    130.3500, 228.6000, -3.0000, 130.2359, 227.7330, -3.0000
  PTMEAS/CART, 133.3500, 228.6000, -3.0000,  -1.0000,   0.0000,  0.0000
  GOTO/ARC,    129.9012, 230.2750, -3.0000, 130.2359, 229.4670, -3.0000
  PTMEAS/CART, 132.4993, 231.7750, -3.0000,  -0.8660,  -0.5000, -0.0000
  GOTO/ARC,    128.6750, 231.5012, -3.0000, 129.3688, 230.9688, -3.0000
  PTMEAS/CART, 130.1750, 234.0993, -3.0000,  -0.5000,  -0.8660, -0.0000
  GOTO/ARC,    127.0000, 231.9500, -3.0000, 127.8670, 231.8359, -3.0000
  PTMEAS/CART, 127.0000, 234.9500, -3.0000,  -0.0000,  -1.0000, -0.0000
  GOTO/ARC,    125.3250, 231.5012, -3.0000, 126.1330, 231.8359, -3.0000
  PTMEAS/CART, 123.8250, 234.0993, -3.0000,   0.5000,  -0.8660,  0.0000
  GOTO/ARC,    124.0988, 230.2750, -3.0000, 124.6312, 230.9688, -3.0000
  PTMEAS/CART, 121.5007, 231.7750, -3.0000,   0.8660,  -0.5000,  0.0000
  GOTO/ARC,    123.6500, 228.6000, -3.0000, 123.7641, 229.4670, -3.0000
  PTMEAS/CART, 120.6500, 228.6000, -3.0000,   1.0000,  -0.0000,  0.0000
  GOTO/ARC,    124.0988, 226.9250, -3.0000, 123.7641, 227.7330, -3.0000
  PTMEAS/CART, 121.5007, 225.4250, -3.0000,   0.8660,   0.5000,  0.0000
  GOTO/ARC,    125.3250, 225.6988, -3.0000, 124.6312, 226.2312, -3.0000
  PTMEAS/CART, 123.8250, 223.1007, -3.0000,   0.5000,   0.8660,  0.0000
ENDMES
$$ CALL/M(EASI_CLEARPLN_GOTO), 1, 125.3250, 225.6988, -3.0000

以上四种方法适用于生成特征的测量点，避让所需的轨迹如安全平面、移动点以及深度参数需要编程人员设置确认。

RationalDMIS 2020 自动测量圆_右键_12