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Create Ellipse from 4 points

  • March 19, 2020
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I'm trying to create a ellipse2D or circle shape from four points. i have 4 coordinates (North, South East, West) i want to join up the points with a round shape.

 

I have tried 2D ellipseReplacer, and used East+West for the Primary Axis & North + South for the secondary Axis. its seems to almost work but the scale an shape is slightly different

I have managed to create a Square using BoundingBox Accumulator - But need to fill that box with a round shape, touching all edges

using 2019.2 Desktop

The image attached shows the 2D ellipse shape overlayed on the 4 points/box. As you can see it's not right. Even when I scale it down it's still incorrect

 

Grateful for any assistance

Best answer by ebygomm

So once you've got your bounding box, you can get the centre, extract the min and max coordinates, then use these to calculate the axis for the ellipse replacer

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ebygomm
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  • ebygommInfluencer
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  • March 19, 2020

So once you've got your bounding box, you can get the centre, extract the min and max coordinates, then use these to calculate the axis for the ellipse replacer

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  • mortonprice
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  • March 19, 2020

So once you've got your bounding box, you can get the centre, extract the min and max coordinates, then use these to calculate the axis for the ellipse replacer

That's done the trick, thank you so much, this has been driving me mad all day

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