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Forum: Geometry
Re: Question Efficient voxelization for 2D arrangement of G4PVParametrised? (Michael H. Kelsey)
Date: 08 Feb, 2018
From: Gabriele Cosmo <Gabriele Cosmo>

Hi Mike,

I would try 'kUndefined' for your specific case.
Voxelisation can only apply in either 3D or 1D along Cartesian axes.

Cheers, Gabriele

---------------------
On Wed, 07 Feb 2018 19:01:04 GMT, Michael H. Kelsey wrote:
> I want to implement a two-dimensional layout of repeated small features
> on a flat surface (sensor pads extracted from a detector
> photolithography mask). The arrangement of pads covers the top of a
> disk, but has no simple 1D symmetry (the electrode lines for the pads
> follow a four-fold "labyrinth" shape, with a roughly circular central
> region).
> 
> According to the App Guide (Section 4.1.4.2), "[I]f a valid axis (the
> axis along which the parameterisation is performed) is specified, a
> simple one-dimensional voxelisation algorithm is applied; if
> 'kUndefined' is specified instead, the default three-dimensional
> voxelisation algorithm applied for normal placements will be activated."
> 
> In my case, where there's no single preferred axis, but there is a
> constraint that everything lies in a single X-Y plane, is there a way to
> encourage "efficient" voxelization? Should I perhaps indicate "kRho", or
> will that suppress azimuthal voxelization entirely?
> 
>   -- Michael Kelsey

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