Plane along Line

Replies to This Discussion

Permalink Reply by Danny Boyes on February 24, 2012 at 4:47am

There is an Aligned Plane Component that might work well for you here.

Attachments:

• CirlceAlignedPlane.gh, 4 KB

Permalink Reply by Fabio on February 24, 2012 at 5:00am

Thanks Danny. it makes sense.

I also found another way of doing it. Maybe it is not the right one but it works and it uses less components. I just rotate the plane along the curve... but since it works with radians, probably your definition will be more precise.

Thanks again.

Attachments:

• Picture 4.jpg, 166 KB

Permalink Reply by Danny Boyes on February 24, 2012 at 5:15am

Your method would be better if you measured the angle to rotate otherwise this would be a manual process each time you changed your parameters. Which kind of defeats the aim of doing it in Grasshopper.

Where as with a definition that measures the angle you would probably end up with more components.

Here with reference points moved, definition stays the same.

 

Permalink Reply by Fabio on February 24, 2012 at 5:18am

Thank Danny. Very helpful.

Permalink Reply by Fabio on February 24, 2012 at 5:41am

I'm now facing another another problem... how can I move a point along a curve and have it to influence other points connected to it? (please see attachment). I tried Divide Curve and move the points with a List Item but that will change the length of the polyline while I would like that to be a fixed value and to have the points to follow the movement... does it make sense? :) 

Attachments:

• Picture 4.jpg, 155 KB
• CirlceAlignedPlaneTest.gh, 9 KB

Permalink Reply by Danny Boyes on February 24, 2012 at 5:55am

Use the Evaluate Length Component. In the Definition attached move the slider to move the point along the curve.

Note when you reference the points from Rhino select them in the order (Origin, Point 1, point 2)

Attachments:

• CirlceAlignedPlaneTest.gh, 5 KB

Permalink Reply by Fabio on February 24, 2012 at 6:26am

I am probably choosing the wrong path to visualise my idea... I want to simulate a simple response of a surface/mesh to wind condition. I understood Kangaroo it is the best plug-in for that but as a beginner I find it a bit hard to understand it. In the definition, each slider move a point but what I'm trying to achieve is to create somehow a relationship between the three points so that the distance among them will be fixed and when one of the points move, it will drag the other points along...

Attachments:

• CirlceAlignedPlaneTest(2).gh, 11 KB

Permalink Reply by Danny Boyes on February 24, 2012 at 6:50am

Is this more like what you are after?

Attachments:

• CirlceAlignedPlaneTest.gh, 7 KB

Permalink Reply by Fabio on February 24, 2012 at 7:07am

not exactly... I think I will have to go through the principles of Kangaroo and explore the possibility of use it to define the responsiveness of surfaces. Thanks a lot for you help Danny