## Function

- Define a curve on a particular plane and create line elements on the curve.

## Call

From the main menu, select **[Node/Element] tab > [Element Detail] group > [Advanced Create] > [Line Elements on Curve]**

## Input

Create Line Elements on Curve

#### Click to the right of Create Line Elements on Curve

Display the Element Table.

### Start Number

**Node Number**

Assign a number to the new starting node created together with new elements in the Model Window. This number is auto-set to the largest node number in use +1. To modify this item, click and select an option to specify a desired number.

**Element Number**

Assign a new starting element number. This number is auto-set to the largest element number in use +1. To modify this item, click and select an option to specify a desired number.

### Curve Type

Select the shape of a curve onto which line elements will be created and the method of defining the curve.

**Arc by 3 points**

Define an arc by assigning 3 particular points

**Arc by Center and 2 points**

Define an arc by assigning 2 particular points and the center of the arc

**Circle by 3 points**

Define a circle by assigning 3 particular points

**Circle by Center and 2 points**

Define a circle by assigning 2 particular points and the center of the circle

**Ellipse by Center and 2 points**

Define an ellipse by assigning 2 particular points and the center of the ellipse

**Parabolic Curve by 3 points**

Define a parabolic curve by assigning 3 particular points

**Cubic Curve by 4 points**

Define a cubic curve by assigning 4 particular points

### Element Type

Assign the type of line elements to be created along the curve

### Material / Section / Orientation

**Material**

Select a material property number, or select a material property name provided that the material property data have been already defined.

**No.** : Type in a number on the keyboard or use the mouse to enter the number

**Name** : Select a material property name

Click to add, inquire, modify or delete material property data. Material properties can be entered either before or after creating elements.

**Section**

Select a section number, or select a section name provided that the section data have been already defined.

**No.** : Type in a number on the keyboard or use the mouse to enter the number

**Name** : Select a section name

Click to add, inquire, modify or delete the section data. Section data can be entered either before or after creating elements.

**Orientation**

**Beta Angle** : Enter a Beta Angle to assign the sectional orientation of the line elements.

### Curve Definition

Define a curve on which new line elements will be created.

**Number of Segments** : Number of segments in the curve to define new elements

The data entry items for each method of defining the curves are as follows :

**Arc by 3 points**

**Arc End Point** : Assign the method of defining the end of the arc

**P3** : Create elements up to the 3rd point on the arc

**Angle** : Enter the angle of the arc within which new elements will be created

**P1** : Enter the coordinates of the starting point of the arc

**P2, P3** : Enter the coordinates of two points on the arc

The arc is created in the direction determined by the sequential direction of P1, P2 & P3.

**Arc by Center and 2 points**

**Arc End Point** : Assign the method of defining the end of the arc

**P2** : Create line elements up to the fictitious line connecting P2 and the center of the arc center

**Angle** : Enter the angle of the arc within which new elements will be created

**C** : Enter the coordinates of the center of the arc

**P1** : Enter the coordinates of a particular point on the arc

**P2** : Create line elements up to the fictitious line connecting P2 and the arc center.

The arc is created in the direction along the curve from P1 to P2 following the shorter distance. To create the arc in the longer arc direction, Angle is used to control the direction.

The arc cannot be created if P1, C and P2 are on a straight line. In such a case, use Angle to create the arc.

**Circle by 3 points**

**P1** : Enter the coordinates of the starting point of a circle

**P2, P3** : Enter the coordinates of two points on the circle

The circle is created in the direction determined by the sequential direction of P1, P2 & P3.

**Circle by Center and 2 points**

**C** : Enter the coordinates of the center of a circle

**P1** : Enter the coordinates of the starting point of the circle

**P2** : Assign a point on the plane of the circle

**Ellipse by Center and 2 points**

**Semi-Ellipse** : To form a semi-ellipse

**C** : Enter the coordinates of the center of an ellipse

**P1** : Enter the coordinates of the starting point on the axis of the longer dimension

**P2** : Enter the coordinates of a point on the ellipse

**Parabolic Curve by 3 points**

**Divide by Equal distance on**

**Curve** : Divide the curve into equal segments

**Projecting line** : Divide the curve into equal segments along the length projected on UCS (GCS) x-axis

**P1** : Enter the coordinates of the starting point of a parabola

**P2, P3** : Enter the coordinates of two points on the parabola

**Cubic Curve by 4 points**

**P1** : Enter the coordinates of the starting point of a cubic curve

**P2, P3, P4** : Enter the coordinates of 3 points on the cubic curve

The Local Directions of the line elements are defined by the sequential direction of P1, P2 & P3.

### Intersect

**Node** : when existing nodes are on the line elements being created, the elements are divided at the existing nodes.

**Element** : when newly created line elements intersect with existing line elements, nodes are automatically created and the line elements are divided at the intersection points.