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4. Creating Arcs and Circles

You can create arcs and circles centered about a location. You begin drawing an arc by specifying its starting and ending angles. You then indicate its center location and set its radius and the orientation of its x axis. You can also specify the arc’s radius before you draw it. ADAMS/View draws the angle starting from the x-axis that you specify and moving counterclockwise (right-hand rule).

To draw an arc:

1) From the Geometric Modeling tool stack or palette, select the Arc tool .

2) In the settings container, do the following:

  • Specify whether you want to create a new part composed of the geometry or add the geometry to an existing part or ground. By default, ADAMS/View creates a new part.

  • If desired, set the radius of the arc.

  • Specify the starting and ending angles of the arc. The default is to create a 90-degree arc from a starting angle of 0 degrees.

3) Click where you want the center of the arc and then drag the mouse to define the radius of the arc and the orientation of the x-axis. ADAMS/View displays a line on the screen to indicate the x-axis. If you specified the radius of the arc in the settings container, ADAMS/View maintains that radius regardless of how you drag the mouse.

4) When the radius is the desired size, click.

To draw a circle:

1) From the Geometric Modeling tool stack or palette, select the Arc tool .

2) In the settings container, do the following:

  • Specify whether you want to create a new part or add the geometry to an existing part. By default, ADAMS/View creates a new part.

  • If desired, set the radius of the circle.

  • Select Circle.

3) Click where you want the center of the circle and then drag the mouse to define the radius of the circle. If you specified the radius of the circle in the settings container, ADAMS/View maintains that radius regardless of how you drag the mouse.

4) When the radius is the desired size, click.

5. Creating Splines

A spline is a smooth curve that a set of location coordinates define. You create splines by defining the locations of the coordinates that define the curve or by selecting an existing geometric curve and specifying the number of points to be used to define the spline.

To create a spline by selecting points on the screen:

1) From the Geometric Modeling tool stack or palette, select the Spline tool .

2) In the settings container, do the following:

  • Specify whether you want to create a new part composed of the geometry or add the geometry to an existing part or ground.

  • Select whether you want the spline to be closed or open.

3) Place the cursor where you want to begin drawing the spline and click.

4) Click the locations where you want the spline to pass through. You must specify at least eight locations for a closed spline and four locations for an open spline.

5) To stop drawing the spline, right-click.

To create a spline by selecting an existing curve:

1) From the Geometric Modeling tool stack or palette, select the Spline tool .

2) In the settings container, do the following:

  • Specify whether you want to create a new part composed of the geometry or add the geometry to an existing part or ground.

  • Select whether you want the spline to be closed or open.

  • Select to create a spline by selecting a curve.

  • In the # Points text box, set how many points you want used to define the curve or clear the selection of Spread Points and let ADAMS/View calculate the number of points needed.

3) Select the curve.