• The association between the isoparametric curve and the support allows the application to update the curve according to the support modification in automatic update mode.
• With a Generative Shape Design license installed, you can using the stacked commands, see Stacking Commands:
  • Create a surface or select multiple surfaces as support surface.
  • Create a point.
  • Create the direction.
• This command is action/object only.

1. Click the Isoparametric Curve icon:

   The Isoparametric curve dialog box appears, the Support field is selected.

   The Isoparametric curve dialog box displays the isoparametric curve inputs: Support defines that isoparametric curve support can help you to: Select any existing surface as support. Create the surface or select multiple surfaces using the contextual stacked commands, for this right-click in the Support field, see Extracting Geometry, Extrapolating Surfaces, Creating Extruded Surfaces, Joining Surfaces or Curves:   If you are creating an isoparametric curve from the context menu of the Limitation box in the Break dialog box, the object selected in the Element box is automatically selected as the support in the Isoparametric curve dialog box. Point defines the isoparametric curve point. Indicate the point by clicking at the desired location on the support. Create the point using the contextual staked commands, for this right-click in the Point field, see Creating Points, Creating Intersections and Creating Projections: Direction defines the isoparametric curve direction. Select the direction by clicking a geometrical element. Create the direction using the contextual staked commands, for this right-click in the Direction field, see Creating Lines and Creating Intersections: Swapped Cells displays the cell where the isoparametric propagation direction has been swapped from the nearest isoparametric propagation direction to the farthest isoparametric propagation direction. This functionality makes sense in case of multiple surfaces support. Swapped Cells List: displays the list of swapped cells.

2. Select Join.1 as curve support.

   The Point field is highlighted in the Isoparametric Curve dialog box.

   The isoparametric curve is previewed on the surface when you move the cursor.

3. Click to indicate where to create the isoparametric curve.

   The isoparametric curve is pre-created, a manipulator is displayed. In case of multiple surfaces support, the selected surface is the reference cell. You can move along the curve using the manipulator arrows. In case of multiple surfaces support you can only move the manipulator inside the reference cell.

   A context menu is available when you right-click the manipulator:

   Edit: This command allows you to define the isoparametric curve according to its parameters. Keep this point: This command allows you to create the point where you clicked. Swap UV: This command allows you to swap U and V parameter values. This command is also available in the Isoparametric curve dialog box when you click the Swaps Curve Direction

4. Select Swap UV from the context menu.

   The isoparametric curve parameters are swapped.

5. Right click on the manipulator and re-select Swap UV.

6. Right click on the manipulator and select Keep this point

   The point is created.

   The Point and Direction fields are filled according to the selection in the Isoparametric Curve dialog box.

   Point and Direction are editable from the Isoparametric Curve dialog box using icons at the right of each field: Point: Click this icon to edit the point. See Creating Points. Line: Click this icon to edit the line0. See Creating Lines.

7. Select Edit from the contextual menu.

   The Tuner dialog box appears.

8. Select Relative option in the Tuner dialog box.

   The relative origin of the curve is displayed on the curve support.

   The Tuner dialog box is modified: True Length option is displayed. Reset Origin button is displayed.

9. Click Reset Origin in the Tuner dialog box.

   The relative origin of the curve is reset from the curve point.

   The Tuner dialog box displays the new origin values.

10. Click Close in the Tuner dialog box.

11. Select the surface as shown.

    The isoparametric propagation direction has been swapped from the nearest isoparametric propagation direction to the farthest isoparametric propagation direction in the selected cell.

    The selected surface has been added to the Swapped Cells field.

12. Click Swapped Cells List

    The Swapped Cells List dialog box appears. You can manage inside this dialog box the swapped cells: remove or replace.

13. Click Close in the Swapped Cells List dialog box.

14. Click OK in the Isoparametric curve dialog box.

    The isoparametric curve is created

    The Isoparameter.1 object is created in the specification tree.

    A point and line have been created: The point corresponds to the cursor location when you define the curve. The line corresponds to the curve orientation when you define the curve.

    The Swap UV parameter contains the information indicating that the curve has been swapped.

About Editing Isoparametric Curve

• You can change the curve support by selecting the Support field in the Isoparametric Curve dialog box that appears, then the new support.
• You can modify the curve parameters in the same way as during its creation