How to auto calculate length of line which has specific color?

Please note that our Planform product does not automatically calculate lengths. However, users can utilize the Set Scale function to define the scale based on at least one known dimension. Once the scale is set, our algorithm will accurately follow the true measurement.

To capture the total length of the red line shown in the drawing, simply assign a category to your measurements. Then, click Measure on the line, and the system will record the total length accordingly. The results can be export directly to excel format.

Tutorial link:

https://club.fastcadreader.com/question/detail/127/how-do-i-manage-the-comment-list-in-a-pdf-drawing