Curve: Create Polyline(Wire) 2D

 

 

 

 

Function

Create Polylines of the wire type, which consist of a series of connected straight lines.  It is only applicable on the Work Plane.

 

 

 

 

Call

Geometry > Curve > Create on WP > Polyline(Wire )

 

 

 

 

<Polyline dialogue box>

Location

Enter the coordinates of the locations.  The coordinates are expressed in different forms noted below.
 

Input Start Location

Enter the coordinates of a Start Location [(ABS x, y)] of a Polyline.
 

Input Next Location(RB to Stop)

Enter the coordinates of a subsequent point [(ABS x, y), (REL dx, dy), (Length, Angle)], which will become connected in a straight line to the last point entered. Right-click to end the polyline creation.
 

<Methods of Entering Coordinates>

ABS x, y

Enter 2-D coordinates for an absolute location on the Work Plane.
REL dx, dy

Enter a relative distance from the last point entered in the 2D coordinates of the Work Plane.
Length, Angle

Enter a distance from the last point entered and a rotational Angle (counterclockwise +) from the + X-direction on the Work Plane.

 

When we enter coordinates using the mouse, the coordinates are automatically entered by a left-click on the desired point, without having to press the Apply button.  However, when coordinates are typed in, either the Enter key or the Apply button needs to be pressed.

 

Make Face

Create a Face for a closed Polyline, using Plane Patch.  This operation will not create a Polyline of the wire type.  When the Make Face option is turned on, we can only create a closed Polyline, and an error message will appear if we attempt to create an open Polyline.
 

Close

The Close option connects the start and end points upon right-clicking the mouse, thereby creating a closed Polyline.

 

 

 

 

Notes

 

When 3-D coordinates are selected in 3-D space using Snap, the program will automatically project the point into 2-D coordinates of the Work Plane.

 

Example: Create 2D Polyline

Single Location

 

 

 

<Instruction>

 

1. Choose Single Location. as your  selection method.

2. Make sure that the dynamic instruction shows Input Start Point.

3. Enter (0, 0) in Location, and click [Apply] or press [Enter] on the keyboard.

4. Make sure that the method is set to REL dx, dy.

5. Enter (2, 2) in Location, and click [Apply] or press [Enter] on the keyboard.

6. Enter (2, -3) in Location, and click [Apply] or press [Enter] on the keyboard.

7. Enter (2, 2) in Location, and click [Apply] or press [Enter] on the keyboard.

8. Click the right mouse button on the Work Window to complete the Polyline curve.

 

Through Multiple Vertices

 

 

 

 

 

<Instruction>

 

1. Choose Through Multiple Points as your selection method.

2. Select 4 Points.

3. Select Ascending in Order.

4. Make sure that Ordering Method is set to Coordinate System.

5. Make sure that Csys is set to Global Rectangular.

6. Specify 1st as 'Y'.

7. Click [Apply] button to finish the Polyline curve.