1.首先，將絕對坐標系移動到對象上，選擇對象上的三個垂直邊建立壹個對象坐標系並保存。
/iknow-pic . cdn . BCE Bos . com/a9d 3 FD 1f 4134970 a 15 a 4b 9 bcad 1c8a 7865d 27 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >中。/iknow-pic . cdn . BCE Bos . com/a9d 3 FD 1f 4134970 a 18c 15a 4b 9 bcad 1c8a 7865d 27？x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/a9d 3fd 1f 4134970 a 18c 15a 4b 9 bcad 1c8a 786558
2.按照下圖所示的絕對坐標系將模型拉直(方便觀察視圖)。使用下拉菜單“信息”-“對象”命令，測量X邊的角度作為對象的坐標系。(此角度是絕對坐標系的XCYC平面中X側投影的角度)
/iknow-pic . cdn . BCE Bos . com/0b7b 02087 BF 40 ad 1f 57 c 8d 87592 c 11 DFA 9 ecce 3e " target = " _ blank " title = " " class = " ikqb _ img _ alink " >；/iknow-pic . cdn . BCE Bos . com/0b7b 02087 BF 40 ad 1f 57 c 8d 87592 c 11 DFA 9 ecce 3e？x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/0b7b 02087 BF 40 ad 1 f57 c 8d 87592 c 11 DFA 9 ecce 3e "/>
3.將模型和對象坐標系繞ZC軸旋轉上壹步中測量的角度(正或負)。旋轉後，X邊平行於XCYC平面中的XC軸。
/iknow-pic . cdn . BCE Bos . com/d 439 b 6003 af 33 a 87392 F4 a 7 EC 85 c 10385343 b 510 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >中。/iknow-pic . cdn . BCE Bos . com/d 439 b 6003 af 33 a 87392 F4 a 7 EC 85 c 10385343 b 510？x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/d 439 b 6003 af 33 a 87392 f 4a 7 EC 85 c 10385343 b 510 "/>
4.將模型放置在如下圖所示的絕對坐標系中(方便觀察視圖)，用“測量”命令測量X邊與XC軸的夾角。
/iknow-pic . cdn . BCE Bos . com/08f 790529822720 ebe 33 a 89 e 75 CB 0 a 46 f 31 fabd 1 " target = " _ blank " title = " " class = " ikqb _ img _ alink " >/iknow-pic . cdn . BCE Bos . com/08f 790529822720 ebe 33 a 89 e 75 CB 0 a 46 f 31 fabd 1？x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/08f 790529822720 ebe 33 a 89 e 75 CB 0a 46 f 31 fabd 1 "/>；
5.將模型和對象坐標系繞YC軸旋轉上壹步中測量的角度(正或負)。旋轉後，X邊與XC軸完全重合。
/iknow-pic . cdn . BCE Bos . com/43 a7d 933 c 895d 143 f 389 AE 477 df 082025 BAF 07d 2 " target = " _ blank " title = " " class = " ikqb _ img _ alink " & gt；/iknow-pic . cdn . BCE Bos . com/43 a7d 933 c 895d 143 f 389 AE 477 df 082025 BAF 07d 2？x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/43 a7d 933 c 895d 143 f 389 AE 477 df 082025 BAF 07d 2 "/>
6.測量Y邊與YC軸的夾角，繞XC軸旋轉物體和物體坐標系，使絕對坐標系與物體坐標系完全重合。
/iknow-pic . cdn . BCE Bos . com/0823 DD 54564 e 9258 c 6 CDCC 8 a 9282d 158 cdbf 4 EDC " target = " _ blank " title = " " class = " ikqb _ img _ alink " & gt；/iknow-pic . cdn . BCE Bos . com/0823 DD 54564 e 9258 c 6 CDCC 8 a 9282d 158 cdbf 4 EDC？x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/0823 DD 54564 e 9258 c 6 CDCC 8 a 9282d 158 CDB F4 EDC "/>；