Re: Calculate BarLine 'kern to fit with a given stencil-x-extent

[Pierre Perol-Schneider]

2013/7/4 Thomas Morley <address@hidden>

I made a typo. Last line above should read:
   a line with x-length 20 leads to a 'kern of 173

As you'll see, I've kept 29 as x-length because it speaks more to me. 

 

Setting
#(set-global-staff-size 16)
will show proper output with my values, bad with yours.

Right, but still my values are slightly different.

Here's some tests with different staff sizes :

% #(set-global-staff-size 16)

%% a line with x-length  1 leads to a 'kern of  8.6

%% a line with x-length  2 leads to a 'kern of  17.2

%% a line with x-length 10 leads to a 'kern of  86

%% a line with x-length 29 leads to a 'kern of  249.4

%% #(set-global-staff-size 17)

%% a line with x-length  1 leads to a 'kern of  9.0

%% a line with x-length  2 leads to a 'kern of  17.9

%% a line with x-length 10 leads to a 'kern of  89.6

%% a line with x-length 29 leads to a 'kern of  259.8

%% #(set-global-staff-size 18)

%% a line with x-length  1 leads to a 'kern of  9.3

%% a line with x-length  2 leads to a 'kern of  18.6

%% a line with x-length 10 leads to a 'kern of  93.2

%% a line with x-length 29 leads to a 'kern of  270.4

%% #(set-global-staff-size 19)

%% a line with x-length  1 leads to a 'kern of  9.7

%% a line with x-length  2 leads to a 'kern of  19.3

%% a line with x-length 10 leads to a 'kern of  99.7

%% a line with x-length 29 leads to a 'kern of  280.4

%% #(set-global-staff-size 20)

%% a line with x-length  1 leads to a 'kern of  10

%% a line with x-length  2 leads to a 'kern of  20

%% a line with x-length 10 leads to a 'kern of  100

%% a line with x-length 29 leads to a 'kern of  290

%% #(set-global-staff-size 21)

%% a line with x-length  1 leads to a 'kern of  10.3

%% a line with x-length  2 leads to a 'kern of  20.7

%% a line with x-length 10 leads to a 'kern of  103.3

%% a line with x-length 29 leads to a 'kern of  299.5

%% #(set-global-staff-size 22)

%% a line with x-length  1 leads to a 'kern of  10.6

%% a line with x-length  2 leads to a 'kern of  21.3

%% a line with x-length 10 leads to a 'kern of  106.4

%% a line with x-length 29 leads to a 'kern of  308.5

Enclosed are the correspondant curves.

As you can see, they look pretty linear.

Hope it helps.

Pierre

x-leng-kern.png
Description: PNG image