Tham khảo tài liệu 'beginning autocad 2002 episode 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Circle creation 53 Centre-radius Select the CIRCLE icon from the Draw toolbar and prompt Specify center point for circle or 3P 2P Ttr radius enter 75 75 R - the circle centre point prompt Specify radius of circle or Diameter enter 20 R - the circle radius. tan tan Centre-Diameter From the menu bar select Draw-Circle-Center Diameter and prompt Specify center point for circle or . enter 175 75 R prompt Specify diameter of circle enter 20 R Two points on circle diameter At the command line enter CIRCLE R and prompt Specify center point for circle or . enter 2P R - the two point option prompt Specify first end point on circle s diameter enter 280 210 R prompt Specify second end point on circle s diameter enter 33o 260 R Three points on circle circumference Menu bar selection with Draw-Circle-3 Points and prompt Specify first point on circle respond pick any point within the top left square prompt Specify second point on circle respond pick another point within the top left square prompt Specify third point on circle respond drag out the circle and pick a point. 54 Beginning AutoCAD 2002 TTR tangent-tangent-radius a Menu bar with Draw-Circle-Tan Tan Radius and prompt Specify point on object for first tangent of circle respond move cursor on to line A and leave for a second and 1. a small marker is displayed 2. Deferred Tangent tooltip displayed respond pick line A . left click on it prompt Specify point on object for second tangent of circle respond pick line B prompt Specify radius of circle enter 25 R and a circle is drawn as tangent to the two selected lines. b At the command line enter CIRCLE R and prompt Specify center point for circle or. enter TTR R - the tan tan radius option prompt first tangent point prompt and pick line C prompt second tangent point prompt and pick line D prompt radius prompt and enter 15 R and a circle is drawn tangential to the two selected lines line C being assumed extended. TTT tangent-tangent-tangent a Menu bar with Draw-Circle-Tan .
