An advantage of using Sketchup

SEE THIS POST IN POLISH

Why Sketchup ?
The biggest advantage :  it's free .
You can also extend it's capabilities using multiple Ruby scripts .
From a point of view of a model designer, RHINO has 2 very interesting functions . One is developing of surfaces , and as a bonus Rhino can also develop a lines and curves that are on those surfaces . Second function is a possibility to project curves onto a surface .

How does it look in Sketchup  ?
 

Surface and an element to project

Here we have an surface with an element we want to project .




 

Pushed / pulled surface

We push / pull this element , and then make an intersection between those two .







Result of intersection

We erase pulled element and on our surface we get projected shape .








In sketchup all the curves are represented as a set of lines or a polyline . At first it can look as an disadvantage , but is it so ?
On a picture abowe all the points  (ends of lines) ar bolded . How can we use it ? We can calculate a distance between every point an 2 points of a triangle , and use our algorythm to find this point on a developed surface.

Points inside triangle











To be continued . . .