[x3d-public] Extrusions, take 3, Replacement with Cylinders, Cobweb needs to be updated in X3D Edit.

[John Carlson]

I’m close to using cylinders with Meteor, templates and X3DOM.  I was able to do it with extrusions in one quadrant in X,Y space.  The other three quadrants were messed up.  I was using Doug Sanden’s x3dconnectorProto.x3d script code to maintain the connection between the spheres, but the code is totally different, so I’m still working on it. (extrusions used three points).  If I get good results, I will post.

John
> On Feb 18, 2016, at 10:58 PM, Leonard Daly <Leonard.Daly at realism.com> wrote:
> 
> On 2/14/2016 9:03 PM, John Carlson wrote:
>> 
>> 3.  Leonard, can you render this in X3DOM?  I’m curious to know how to do this with Inline’s and not Proto’s.
> 
> Simple answer is No. The PROTOs use Scripts. There are no scripts in X3DOM.
> 
> That does not mean it cannot be done. You have 4 sphere's randomly moving in a region. You have connected three of them to a "central" hub. The most difficult part is maintaining the connection between the spheres. Using a transform on a cylinder is really messy because you need to scale, rotate, and translation the center of each cylinder for each animation frame.
> 
> A better way to go might be to modify the existing IndexedLineSet node to produce a line with a width. Then you are just transforming the end points of a 2-point line. Note that if you arrange the Transforms properly the "hub" sphere is always at the origin of the hierarchy that contains the 4 spheres and cylinders.
> 
> 
> <all of the old messages clipped out...>
> 
> -- 
> Leonard Daly
> 3D Systems & Cloud Consultant
> X3D Co-Chair on Sabbatical
> LA ACM SIGGRAPH Chair
> President, Daly Realism - Creating the Future

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