Modify Geometric Spline

Name

Enter the name of the spline to modify.

Closed

Select Yes if you want the spline to be closed or select no if you want the spline to be open.

Segment Count

Displays the number of segments Adams View uses to graphically display the fitting of the points in the curve. To have Adams View automatically calculate the number of segments, select the Calculate tool .

For an open curve, Adams View defaults to a segment count that is five times the number of curve points that you have provided. Specifying fewer segments results in a coarser curve. For a closed curve, Adams View defaults to a segment count that is five times the number of points, plus one. In mathematical terms:

5 * ( #pts + 1 )

For both closed and open curves, there are no limits to how many or how few segments you use (other than hardware limitations), but for every curve there is a plateau, beyond which increasing the number of segments does not enhance the graphics of your spline.

Values

Enter values for the locations of the points that define the spline. The points are relative to the reference marker.

You can edit the locations of the points by selecting the More button to display the Location table. The values cannot be modified if a reference_profile is specified.

Reference Marker

Enter the marker that defines the location and orientation of the spline. The marker acts as a reference coordinate system for the coordinate values used to define the reference curve points.

Reference Curve

Displays the existing data element curve that is used to mathematically define the spline. When you define the points that make up the spline, Adams View creates a curve fit through the points. Learn about Data Element Modify Curve dialog box.

Reference Profile

Enter an existing Wire Geometry from which the bspline is to be created. Note that the ref curve and matrix will be automatically generated and hence the corresponding fields are disabled if a profile is specified.

Reference Matrix

Displays a data element matrix that contains all the spline point coordinates. Learn about Create/Modify Matrix dialog box.

Spread Points

Specify the value to ‘yes’ or ‘no’ (applicable only when a ref profile is specified). If specified to ‘yes’, then the generated bspline will have its points equally spaced.

Num new pts

Specify the number of points on the bspline. This parameter is usable only if spread points is specified to ‘yes’.

Select to enter any comments about the geometry that you want to enter to help you manage and identify it. See Comments.

Select to display the Edit Appearance Dialog Box.