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charts: add chart-dim

char-rename
Alexander Iljin 2017-01-20 03:44:44 +03:00 committed by John Benediktsson
parent 664922ca21
commit 22413dfa58
1 changed files with 4 additions and 0 deletions
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@ -11,6 +11,10 @@ M: chart pref-dim* drop { 300 300 } ;
: chart-axes ( chart -- seq )
drop { { 0 300 } { 0 300 } } ;
! Return the width and height of the visible area, in pixels.
: chart-dim ( chart -- seq )
drop { 300 300 } ;
! There are several things to do to present data on the screen.
! Map the data coordinates to the screen coordinates.
! Cut off data outside the presentation window. When cutting off vertically, split the line into segments and add new points if necessary. Return an array of line segments.