Check-routine for 2D/3D geometry

[Tobias Kern]

Hi,

 

i never made a Marionette before, but i would like to learn it

and i have an idea for my first project.

 

Often it have to import a lot of 2D or 3D objects into my drawings.

 

I want to check, if my objects (mostly 2D polygons) have perfect 90° angles

or if other objects like 2D lines are drawn horizontally (0°) or vertically (90°) perfect to the actual axis.

 

I'm also a Sketchup (SKP) user. In SKP i have a option to temporary show me the objects with the

colors of the axis, if they align perfect with the axis direction.

 

Lines perfect to x-axis are temporary shown in red

Lines perfect to y-axis are temporary shown in green

Lines perfect to z-axis are temporary shown in blue

Other Lines are got a black color.

 

I often use this to check my geometry, i find this a very very useful feature in SKP 

 

Can i solve such a checking routine, with a Marionette?

 

/ / / 

 

Three projects i have in mind:

 

1.0 Check the selected objects (2D or 3D), if the edges are perfect aligned to the actual axis. if so, draw 2D or 3D lines on the same position

      on a new layer with the line-color of the  axis, if not, draw 2D or 3D lines on the same position on a new layer with black color.

 

2.0 Check polygons if they have perfect 90° angles and group all polygons which not have 90° angles.

 

3.0  Convert all polygons with 4 endpoints and perfect 90° angles to rectangles.

 

Greetings from Germany

… any many thnx for helping me out.

Tobi

[Letti R]

Hello,

 

i tried to make the 2D part of your project 1.0.

I think doing this only with marionette (without custom nodes) is not easy (maybe even impossible). I tried to make a marionette for one 2D polygon and it works fine, but if i want to be able to process multiple 2D polygons at once i come to a point where i would need to write my own nodes. But instead of writing my own nodes i would rather write the whole script in python.

 

However there are workarounds for the 2D part.

1. Convert your import into lines manually and make a marionette for lines:

The marionette for lines in 2D could look something like this, but i dont recommend doing it this way.

 

 

2. Convert your import into lines manually and make data visualisations:

For 2D lines you can achive something like what you want with data visualisations. Simply make a visualisation for lines with a "Bounding Box delta x" of 0 (line is parallel to y), and one for lines with a "Bounding Box delta y" of 0 (line is parallel to x).

 

 

Regards

Letti