I posted yesterday a new message. As I wrote I need to calculate the insolation on a tubolar reactore made of trasparent plastic materials, where i grow up microalgae for biodiesel. It's really important to me know how much solar radiation is absorbed and trasmitted by the reactor. My prblem is I'm not able to drawn a tubolar closed reactor with Ecotect. Can you Help me.
Niccolò

Re: Modeling tubes
There is a parametric object tool that you can use to create cylinders, hemispheres, etc.--even geodesic domes and spirals.
You can find it in the Scripts and Wizards settings tab on the right side of the screen (third tab from the bottom). Use the parametric objects pull down field to select the object you wish to model.