an elliptic cylinder

[wwang]

Hi Dr. Fang,

Is there a way to create an elliptical cylinder where I can specify the major and minor axis radius of the cross section, the length of cylinder. Elliptic Cylinder -- from Wolfram MathWorld

Also, when placing detector on the cylinder surface (not the two ends), is the detector area where the detector sphere and the cylinder outer surface intersect? Is there a way to create a rectangular detector area on the cylinder surface? Many thanks.

[Qianqian Fang]

see my replies below

On 6/17/25 16:33, wwang wrote:

Hi Dr. Fang,

Is there a way to create an elliptical cylinder where I can specify the major and minor axis radius of the cross section, the length of cylinder. Elliptic Cylinder -- from Wolfram MathWorld

it did not support, but now it does. see this commit I made earlier

https://github.com/fangq/iso2mesh/commit/9ee89c5bba98e30f91376b311933605f78de32d3

Also, when placing detector on the cylinder surface (not the two ends), is the detector area where the detector sphere and the cylinder outer surface intersect?

if you were referring to mmc, yes

Is there a way to create a rectangular detector area on the cylinder surface? Many thanks.

you can create a widefield detector using cfg.detpos, cfg.detparam1/cfg.detparam2, but you have to move it away from the cylindrical surface. see example here

https://github.com/fangq/mmc/blob/master/mmclab/example/demo_wide_det.m

if you just want o get the diffuse reflectance on the cylinder surface, you should set cfg.issaveref to 1, this produces the dref output, you can rasterize it anyway you want

see example

https://github.com/fangq/mmc/blob/master/mmclab/example/demo_mmclab_basic.m#L38

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[wwang]

Thank you very much for the help, Dr. Fang.