Category
Function
Produces a ribbon of specified width from a specified line.
Syntax ribbon = Ribbon(line, width);
Inputs
| Name | Type | Default | Description |
|---|---|---|---|
| line | field | none | line to be drawn as a ribbon |
| width | scalar | input dependent | ribbon width |
Outputs
| Name | Type | Description |
|---|---|---|
| ribbon | field | the line turned into a ribbon |
Functional Details
This module is intended for use with any module that creates lines.
line | specifies a line to be turned into a ribbon. If this line has a "normals" component (as would occur, for example, if the input field curl were used with Streamline), the resulting ribbon shows a twist corresponding to this component (at each point of the input line, the ribbon is oriented in the direction pointed to by the normal). If a "normals" component is not found but the input contains a "binormals" component, normals are derived by crossing the binormals with the approximated tangents. If no "normals" component is present, the ribbon's orientation is based on the path of the line. |
width | specifies the width of the ribbon in the same units as those of the original space. If this parameter is not specified, the system provides an appropriate value (1/50 of the diagonal of the bounding box of line). The value used is attached to the output object as a "Ribbon width" attribute (which can be extracted with the Attribute module). |
Note: Different colors can be specified for the two sides of the ribbon. Use the Color module and specify "front colors" and "back colors."
Components
Creates new "positions," "connections," and "normals" components. All other components are propagated to the output.
Example Visual Programs
ThunderStreamlines.net UsingStreakline.net
See Also
Color, Streakline, Streamline, Tube
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