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Bezier Curves - How would you use them?

scruffyduck

scruffyduck

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I am working on Bezier curve helper. Playing around with it leads me to think that the standard tools for creating the helper shape are not much help. I am assuming that such a shape would be used to draw a curved line against some specific points on the airport. I think I am going to need to create a special tool for this since the standard helper shape geometry does not lend itself to this - I spent ages trying to match a 'traditional helper' bezier.

Beziers are created using three or four points. ADE draws them already for taxi path junctions.

Before I head down another rat hole I would like some ideas on how you would use Bezier curve GP Custom Ground Lines.....


PS I was surprised to find that Bezier curves were 'invented' sometime in the 1960's by Pierre Bezier who worked for Renault. It seems a lot of the curves in your car, truck or whatever are Bezier curves
 
I don't think I would use them since they would need to be linearised.

Bezier curves are a simplification of cubic b-splines.
 
I don't think I would use them since they would need to be linearised.
Click to expand...

Not sure what you mean by that George :o
 
Hi Jon. The attached screenshot of a portion of the apron at my CYYJ illustrates use of Bezier curves with ground ppolys.

Don
 

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Exactly. I would use it also to draw parking and taxi center and edge lines.
But that would be for polylines only and the ideal would be to be able to use it for polygons as well.

PS Maybe you can find some inspiration in GSU?
 
Hi Jon,

I think Bézier curves would be useful. When I worked on my gpoly tool a few years ago I also tried to implement them. I think there are very useful to make curves. You just set the start and end point and then with one or two control points you can usually get the shape you want.
 
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