C++ code to D (multi dem 3d mesh)

[Joel]

On Tuesday, 27 October 2020 at 07:17:46 UTC, Imperatorn wrote:
> On Monday, 26 October 2020 at 23:38:22 UTC, Joel wrote:
>> ```
>> struct vec3d
>> {
>> 	float x, y, z;
>> }
>>
>> [...]
>
> It's not really clear what your question is.

I'm trying to convert from C++ code to D code, see where I've put 
'// This here' - with all the data. I found one way. I think I've 
thought of another way too.