Draw Sector

Function Description

  • The Fan command is used to draw a fan object. Application provides two ways to Draw Sector, one is to get Circular Sector by drawing a circle, and the other is to get Elliptical Sector by drawing an ellipse.
  • The drawn sector object is part of the (oval) circle object, so you need to draw an (oval) circle object before you draw the Sector object.

Function entrance

  • Object Operation tab-> Object Drawing group-> Face drop-down box-> Fan.

Operating instructions

Circular Sector
  1. On the Object Operation tab, click the Face Drop-down Button in the Object Drawing group and select the Circular Sector command. The Circular Sector cursor appears.
  2. Move Stop by Mouse to Map, enter the coordinate value of the center of the circle in the following Parameter Input box (you can switch between the two Parameter Input boxes by pressing the Tab key), and then press the Enter key to determine the position of the center of the circle.
  3. Move the mouse again, enter the radius (length) in the Parameter Input box, and press Enter to complete the circle.
  4. Continue to move the mouse, enter the Start Angle of the sector in the Parameter Input box, and press Enter to confirm.
  5. Move the mouse, enter the sweeping angle of the sector in the Parameter Input box, and press Enter to complete the drawing of Circular Sector.
  6. Right-click to cancel the current drawing operation.

Elliptical Sector

  1. On the Object Operation tab, click the Fan Drop-down Button in the Object Drawing group and select the Elliptical Sector command to display the fan cursor.
  2. Move Stop by Mouse to Map, and you can see that the coordinate value of the current mouse position will be displayed in the Parameter Input box in real time as the mouse moves. Enter the coordinates of the starting point of the ellipse in the Parameter Input box (you can switch between the two Parameter Input boxes by pressing the Tab key) and press the Enter key to determine the starting position of the ellipse.
  3. Move the mouse, and Map will mark the length of the line connecting the mouse position and the starting point of the semi-axis and the included angle between the line and the positive direction of the X axis in real time (you can switch between the two Parameter Input boxes by pressing the Tab key). Input the length and angle values in the Parameter Input box, and press the Enter key to execute the input. Complete the drawing of one half axis of the oblique ellipse.
  4. Continue to move the mouse, enter the length of the other half axis of the ellipse in the Parameter Input box, and press Enter to complete the drawing of the oblique ellipse.
  5. Continue to move the mouse, enter the Start Angle of the sector in the Parameter Input box, and press Enter to confirm.
  6. Move the mouse, enter the sweeping angle of the sector in the Parameter Input box, and press Enter to complete the drawing of the Elliptical Sector.
  7. Right-click to cancel the current drawing operation.
Caution:
The sector drawn in

Online Data is an ordinary line object, and only the coordinates of each node on the line are recorded. However, the sector object drawn in CAD Dataset is a parametric object, and the corresponding parameters are recorded. Such as center of circle, semi-major axis, semi-minor axis, Start Angle, Scan Angle, etc.