Stretch : Options and Results

Access: Open this function from the following location:

Select Solid > Warp > Stretch from the menu bar.

Stretch or shrink an object (and wire bodies) along a vector relative to a reference plane.

This function enables stretching and compressing any type of object or objects (such as, solid, skin, curve, composite and so on) under specific conditions along a predefined vector. Entire bodies or partial body regions can be stretched or shrunk.

Required Step 1

Select the object or objects that you want to stretch (or shrink) along a vector relative to the reference plane.

Example part:	Object selected:

Required Step 2

Define the stretching region and set the required parameters. Depending on the toggle option selected, the following parameters are displayed:

Parameters

By Section

This a toggle option By Section / By Region that enables you to define the area to be stretched/shrunk.

By Section

Stretch a selected section of the object.

Pick a face, set the delta distance and select the direction (a directional arrow is displayed); the entire section is stretched in the direction that was selected.
Example:Example:

Pick the face of the object to be stretched. Select the required delta and click the arrow to select the direction.	The entire section is stretched in the direction that was selected, as follows:

By Region

Stretch or shrink a selected region of the object (between the selected Base and End planes).

Pick the face, set the delta distance, and select another face to define the 'region': the entire region is stretched or shrunk in the direction that was selected.

Example: By Region > StretchExample: By Region > Stretch

Pick the face of the object to be stretched (ensure the Stretch toggle option is selected). The selected face is defined as the Base Plane.	Enter the required delta and select the entity to define the End Plane.	The selected region is stretched in the direction that was selected, as follows:

Example: By Region > ShrinkExample: By Region > Shrink

Pick the face of the object to be shrunk (Ensure the Shrink toggle option is selected). The selected face is defined as the Base Plane.	Enter the required delta (which must be smaller than the Region Width value) and select the upper face of the region. This will be defined as the End Plane.	The selected region is shrunk according to the selected parameters, as follows:

Stretch

This is a toggle option Stretch / Shrink that enables you to stretch/shrink the entity as required. This option is displayed when the By Region option is selected above. See the examples in the By Section option, above.

Region Width

This is a system generated parameter and is defined by the selected base and end planes. This option is displayed when the By Region option is selected above. See the examples below and also in the By Section option, above.
Example:Example:

The Region Width is 'not defined' when the base and end planes have not been selected. These planes define the region to be stretched or shrunk.	When the base and end planes have been selected, the Region Width parameter displays the distance between the planes.	A stretch operation result:

Delta

The delta distance of the stretch or shrink.

Free

This is a toggle option Free / Tangent that defines the type of stretch/shrink performed. With the Tangent option, unsmooth connections between faces do not exist. See the Free and Tangent examples below.

Click OK or Apply in the Feature Guide to complete the function.

Free

1. Select the Base Plane and End Plane, define a delta value of 50, and ensure Free is selected, as follows:

2. Click OK in the Feature Guide to complete the function.

3. From the Analyze menu select Entity Information, select the Filter Objects button and then select the object. Click the Unsmooth connections button from the Entity Information dialog; unsmooth connections are found and highlighted in the defined color.

Tangent

1. Select the Base Plane and End Plane, define a delta value of 50, and select Tangent as follows:

2. Click OK in the Feature Guide to complete the function.

Click OK or Apply in the Feature Guide to complete the function.

When completed, the Stretch feature will appear in the Feature Tree as follows:

Some functionality may be dependent on the product package. Contact your Reseller if you require a license.