3.4. Length profiles
This represents a guide on how to choose a section and display a length profile.
3.4.1. General
TWW has a unique function to display length profiles. Choose the length profile button to start.
![../../_images/profile_button_selected.jpg](../../_images/profile_button_selected.jpg)
The length profile window opens.
![../../_images/profile_lenght_profile_empty.jpg](../../_images/profile_lenght_profile_empty.jpg)
Select the vw_tww_cover layer to select a starting point.
![../../_images/profile_selection_start.jpg](../../_images/profile_selection_start.jpg)
Then select a next manhole - it is not needed to be the direct next one. The tool automatically selects the manholes in between. You can repeat this several times. If there is no continuity you will get a warning. Right click to finish your selection.
![../../_images/profile_selection.jpg](../../_images/profile_selection.jpg)
In the profile window you now have the length profile. You can see detail info about manholes. If you hover over a manhole in the profile window you can see that the canvas correspondent gets highlighted in green.
![../../_images/profile_connected_manhole.jpg](../../_images/profile_connected_manhole.jpg)
Same goes for the reaches.
![../../_images/profile_connected_reach.jpg](../../_images/profile_connected_reach.jpg)
3.4.2. Printing
Select the Print button to send the profile to your selected printer. If you have installed a pdf printer you can save it as a pdf file.