Let's begin

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As was seen in previous post, the script to automatically develop elements in Sketchup works.
But since the programming is not the main part of ​​this blog, I decided to start with something more practical.
So we go with the Su-17M. Why this plane? Hmmm ...
It seems to me that a simple fuselage and overall shape decided ...
The place, which surely will bring the problems will be wings.
I think intensively over the folding mechanism of the wings. Maybe I will able to synchronize both sides.

The first stage of design is documentation. Aligning views (up-down-front-page) and appropriate scaling of them is made in any graphics software.

To make modelling easier I removed the background in each of the view and saved it as PNG, which allowed to maintain transparency. Then I inserted everything into SketchUp.

The next step was to trace the shape of the fuselage in views from the top and side. I chose this way of modeling, since the individual sections of the fuselage, available in this set of plans do not fit well to top and side view of plane. So I decided to approach the fuselage modelling from another direction. Because the fuselage sections are approximately round - elliptical, I will draw hull first and then create it's cross-sections.
The outline of the fuselage is dwith BZ CURVES - Sketchup extension that allows you to draw spines and other curves.

I pulled both shapes and made intersection. Then I drew vertical planes in places where I planned bulkheads and after another intersection and removing not necesary geometry I received a series of rectangles.

In the individual rectangles I drew elipses. To do  this, I used to be another extension for SketchUp: TOOLS ON SURFACES.

Fuselage was constructed on defined sections using yet another Sketchup extension: CURVILOFT.
You can also try a different script: SKIN.
Here you can see the effect already made with the wings.










Construction of wings in the next post.