Acronym ..., N-g || N-appip
Name N-gon atop N-appip,
(N-gon, N-p, gyro N-p)-trigonic
Circumradius ...
Lace city
in approx. ASCII-art
       o oNx  
              
              
              
x oNx    x xNo
Face vector 5n, 17n, 21n+5, 11n+8, 2n+5
Especially taope (N=3)  
Confer
general polytopal classes:
segmentotera   lace simplices  

For non-convex cases use N = n/d.


Incidence matrix according to Dynkin symbol

xxoNoox oxx &#x   → height(1,2) = sqrt(3)/2 = 0.866025
                    height(1,3) = sqrt[(1+3 cos(π/N))/(4+4 cos(π/N))]
                    height(2,3) = sqrt[(1+2 cos(π/N))/(2+2 cos(π/N))]

o..No.. o..     | n  *  * | 2  2  4  0 0  0  0 0 | 1  4 1  4  2  2  4 0 0  0  0  0 0 0 | 2 2 2 2 1  4  2  2 0 0 0 0 0 | 1 1 2 2 1 0
.o.N.o. .o.     | * 2n  * | 0  1  0  2 1  2  0 0 | 0  2 1  0  0  0  2 1 2  2  1  2 0 0 | 1 2 0 0 0  2  1  2 1 1 2 1 0 | 1 0 1 2 1 1
..oN..o ..o     | *  * 2n | 0  0  2  0 0  2  2 1 | 0  0 0  1  2  2  2 0 0  1  2  2 1 2 | 0 0 1 1 2  1  2  2 0 1 1 2 1 | 0 1 1 1 2 1
----------------+---------+----------------------+-------------------------------------+------------------------------+------------
x.. ... ...     | 2  0  0 | n  *  *  * *  *  * * | 1  2 0  2  0  0  0 0 0  0  0  0 0 0 | 2 1 2 1 0  2  0  0 0 0 0 0 0 | 1 1 2 1 0 0
oo.Noo. oo. &#x | 1  1  0 | * 2n  *  * *  *  * * | 0  2 1  0  0  0  2 0 0  0  0  0 0 0 | 1 2 0 0 0  2  1  2 0 0 0 0 0 | 1 0 1 2 1 0
o.oNo.o o.o &#x | 1  0  1 | *  * 4n  * *  *  * * | 0  0 0  1  1  1  1 0 0  0  0  0 0 0 | 0 0 1 1 1  1  1  1 0 0 0 0 0 | 0 1 1 1 1 0
.x. ... ...     | 0  2  0 | *  *  * 2n *  *  * * | 0  1 0  0  0  0  0 1 1  1  0  0 0 0 | 1 1 0 0 0  1  0  0 1 1 1 0 0 | 1 0 1 1 0 1
... ... .x.     | 0  2  0 | *  *  *  * n  *  * * | 0  0 1  0  0  0  0 0 2  0  0  2 0 0 | 0 2 0 0 0  0  0  2 1 0 2 1 0 | 1 0 0 2 1 1
.ooN.oo .oo &#x | 0  1  1 | *  *  *  * * 4n  * * | 0  0 0  0  0  0  1 0 0  1  1  1 0 0 | 0 0 0 0 0  1  1  1 0 1 1 1 0 | 0 0 1 1 1 1
... ..x ...     | 0  0  2 | *  *  *  * *  * 2n * | 0  0 0  0  1  0  0 0 0  0  1  0 1 1 | 0 0 1 0 1  0  1  0 0 1 0 1 1 | 0 1 1 0 1 1
... ... ..x     | 0  0  2 | *  *  *  * *  *  * n | 0  0 0  0  0  2  0 0 0  0  0  2 0 2 | 0 0 0 1 2  0  0  2 0 0 1 2 1 | 0 1 0 1 2 1
----------------+---------+----------------------+-------------------------------------+------------------------------+------------
x..No.. ...     | n  0  0 | n  0  0  0 0  0  0 0 | 1  * *  *  *  *  * * *  *  *  * * * | 2 0 2 0 0  0  0  0 0 0 0 0 0 | 1 1 2 0 0 0
xx. ... ... &#x | 2  2  0 | 1  2  0  1 0  0  0 0 | * 2n *  *  *  *  * * *  *  *  * * * | 1 1 0 0 0  1  0  0 0 0 0 0 0 | 1 0 1 1 0 0
... ... ox. &#x | 1  2  0 | 0  2  0  0 1  0  0 0 | *  * n  *  *  *  * * *  *  *  * * * | 0 2 0 0 0  0  0  2 0 0 0 0 0 | 1 0 0 2 1 0
x.o ... ... &#x | 2  0  1 | 1  0  2  0 0  0  0 0 | *  * * 2n  *  *  * * *  *  *  * * * | 0 0 1 1 0  1  0  0 0 0 0 0 0 | 0 1 1 1 0 0
... o.x ... &#x | 1  0  2 | 0  0  2  0 0  0  1 0 | *  * *  * 2n  *  * * *  *  *  * * * | 0 0 1 0 1  0  1  0 0 0 0 0 0 | 0 1 1 0 1 0
... ... o.x &#x | 1  0  2 | 0  0  2  0 0  0  0 1 | *  * *  *  * 2n  * * *  *  *  * * * | 0 0 0 1 1  0  0  1 0 0 0 0 0 | 0 1 0 1 1 0
oooNooo ooo &#x | 1  1  1 | 0  1  1  0 0  1  0 0 | *  * *  *  *  * 4n * *  *  *  * * * | 0 0 0 0 0  1  1  1 0 0 0 0 0 | 0 0 1 1 1 0
.x.N.o. ...     | 0  n  0 | 0  0  0  n 0  0  0 0 | *  * *  *  *  *  * 2 *  *  *  * * * | 1 0 0 0 0  0  0  0 1 1 0 0 0 | 1 0 1 0 0 1
.x. ... .x.     | 0  4  0 | 0  0  0  2 2  0  0 0 | *  * *  *  *  *  * * n  *  *  * * * | 0 1 0 0 0  0  0  0 1 0 1 0 0 | 1 0 0 1 0 1
.xo ... ... &#x | 0  2  1 | 0  0  0  1 0  2  0 0 | *  * *  *  *  *  * * * 2n  *  * * * | 0 0 0 0 0  1  0  0 0 1 1 0 0 | 0 0 1 1 0 1
... .ox ... &#x | 0  1  2 | 0  0  0  0 0  2  1 0 | *  * *  *  *  *  * * *  * 2n  * * * | 0 0 0 0 0  0  1  0 0 1 0 1 0 | 0 0 1 0 1 1
... ... .xx &#x | 0  2  2 | 0  0  0  0 1  2  0 1 | *  * *  *  *  *  * * *  *  * 2n * * | 0 0 0 0 0  0  0  1 0 0 1 1 0 | 0 0 0 1 1 1
..oN..x ...     | 0  0  n | 0  0  0  0 0  0  n 0 | *  * *  *  *  *  * * *  *  *  * 2 * | 0 0 1 0 0  0  0  0 0 1 0 0 1 | 0 1 1 0 0 1
... ..x ..x     | 0  0  4 | 0  0  0  0 0  0  2 2 | *  * *  *  *  *  * * *  *  *  * * n | 0 0 0 0 1  0  0  0 0 0 0 1 1 | 0 1 0 0 1 1
----------------+---------+----------------------+-------------------------------------+------------------------------+------------
xx.Noo. ... &#x  n  n  0 | n  n  0  n 0  0  0 0 | 1  n 0  0  0  0  0 1 0  0  0  0 0 0 | 2 * * * *  *  *  * * * * * * | 1 0 1 0 0 0
xx. ... ox. &#x  2  4  0 | 1  4  0  2 2  0  0 0 | 0  2 2  0  0  0  0 0 1  0  0  0 0 0 | * n * * *  *  *  * * * * * * | 1 0 0 1 0 0
x.oNo.x ... &#x  n  0  n | n  0 2n  0 0  0  n 0 | 1  0 0  n  n  0  0 0 0  0  0  0 1 0 | * * 2 * *  *  *  * * * * * * | 0 1 1 0 0 0
x.o ... o.x &#x  2  0  2 | 1  0  4  0 0  0  0 1 | 0  0 0  2  0  2  0 0 0  0  0  0 0 0 | * * * n *  *  *  * * * * * * | 0 1 0 1 0 0
... o.x o.x &#x  1  0  4 | 0  0  4  0 0  0  2 2 | 0  0 0  0  2  2  0 0 0  0  0  0 0 1 | * * * * n  *  *  * * * * * * | 0 1 0 0 1 0
xxo ... ... &#x  2  2  1 | 1  2  2  1 0  2  0 0 | 0  1 0  1  0  0  2 0 0  1  0  0 0 0 | * * * * * 2n  *  * * * * * * | 0 0 1 1 0 0
... oox ... &#x  1  1  2 | 0  1  2  0 0  2  1 0 | 0  0 0  0  1  0  2 0 0  0  1  0 0 0 | * * * * *  * 2n  * * * * * * | 0 0 1 0 1 0
... ... oxx &#x  1  2  2 | 0  2  2  0 1  2  0 1 | 0  0 1  0  0  1  2 0 0  0  0  1 0 0 | * * * * *  *  * 2n * * * * * | 0 0 0 1 1 0
.x.N.o. .x.      0 2n  0 | 0  0  0 2n n  0  0 0 | 0  0 0  0  0  0  0 2 n  0  0  0 0 0 | * * * * *  *  *  * 1 * * * * | 1 0 0 0 0 1
.xoN.ox ... &#x  0  n  n | 0  0  0  n 0 2n  n 0 | 0  0 0  0  0  0  0 1 0  n  n  0 1 0 | * * * * *  *  *  * * 2 * * * | 0 0 1 0 0 1
.xo ... .xx &#x  0  4  2 | 0  0  0  2 2  4  0 1 | 0  0 0  0  0  0  0 0 1  2  0  2 0 0 | * * * * *  *  *  * * * n * * | 0 0 0 1 0 1
... .ox .xx &#x  0  2  4 | 0  0  0  0 1  4  2 2 | 0  0 0  0  0  0  0 0 0  0  2  2 0 1 | * * * * *  *  *  * * * * n * | 0 0 0 0 1 1
..oN..x ..x      0  0 2n | 0  0  0  0 0  0 2n n | 0  0 0  0  0  0  0 0 0  0  0  0 2 n | * * * * *  *  *  * * * * * 1 | 0 1 0 0 0 1
----------------+---------+----------------------+-------------------------------------+------------------------------+------------
xx.Noo. ox. &#x  n 2n  0 | n 2n  0 2n n  0  0 0 | 1 2n n  0  0  0  0 2 n  0  0  0 0 0 | 2 n 0 0 0  0  0  0 1 0 0 0 0 | 1 * * * * *
x.oNo.x o.x &#x  n  0 2n | n  0 4n  0 0  0 2n n | 1  0 0 2n 2n 2n  0 0 0  0  0  0 2 n | 0 0 2 n n  0  0  0 0 0 0 0 1 | * 1 * * * *
xxoNoox ... &#x  n  n  n | n  n 2n  n 0 2n  n 0 | 1  n 0  n  n  0 2n 1 0  n  n  0 1 0 | 1 0 1 0 0  n  n  0 0 1 0 0 0 | * * 2 * * *
xxo ... oxx &#x  2  4  2 | 1  4  4  2 2  4  0 1 | 0  2 2  2  0  2  4 0 1  2  0  2 0 0 | 0 1 0 1 0  2  0  2 0 0 1 0 0 | * * * n * *
... oox oxx &#x  1  2  4 | 0  2  4  0 1  4  2 2 | 0  0 1  0  2  2  4 0 0  0  2  2 0 1 | 0 0 0 0 1  0  2  2 0 0 0 1 0 | * * * * n *
.xoN.ox .xx &#x  0 2n 2n | 0  0  0 2n n 4n 2n n | 0  0 0  0  0  0  0 2 n 2n 2n 2n 2 n | 0 0 0 0 0  0  0  0 1 2 n n 1 | * * * * * 1

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