Calculate the length of the curve as measured between the specified parameter values.
| Name | Type | Description |
| FromParam | Double | Input Double that specifies the parameter value to measure the length from. |
| ToParam | Double | Input Double that specifies the parameter value to measure the length to. |
| Length | Double | Output Double that returns the distance measured along the curve. |
| Name | Description |
| True length of sweep feature | This sample demonstrates the calculation of the true length of a sweep feature. If the centroid of the sweep profile does not lie on the sweep path, the true length of the sweep feature is not the same as the sum of lengths of the path entities. |