Evaluate a curve at the specified parameter or at a certain factor along its length, where the length factor can be supplied both in curve units and normalized units
ID
tool-curve-analysis-evaluate-curve
Name
Evaluate Curve
Group
Curve Analysis
Package
Tool
Keywords
Render
After creating a node, connect the curve to be evaluated to the first port. Connect a parameter to the second port to evaluate the curve using either the parameter on the curve's domain or the length factor. Connect the boolean toggle, which is used to determine whether to evaluate the curve with the t parameter or with the length, to the third port. By default, the curve will be evaluated using the t parameter. On the output ports, you will receive the point on the curve at the specified t or length, the tangent vector at the specified t or length, the tangent perpendicular vector, the curve length from the start to the specified parameter or length, and the curve length from the specified parameter or length to the end.
Length Parameter
Point On Curve\
Inputs
Name | Type | Description | Default Value |
---|---|---|---|
curve | Curve | Curve to evaluate | |
value | Number | Evaluate the curve using either the parameter on the curve's domain or the length factor | 0.5 |
byLength | Boolean | If true, work with the t parameter, otherwise, work with the length |
Outputs
Name | Type | Description |
---|---|---|
point | Point | Point on the curve at {t} or at the specified length |
tangent | Vector | Tangent vector at {t} or at the specified length |
tangentPerp | Vector | Tangent perpendicular vector |
len1 | Number | Curve length from start to parameter or specified length |
len2 | Number | Curve length from the specified parameter to the end or from the specified length to the end |