How to manipulate Canvas elements: Difference between revisions

How to manipulate Canvas elements (view source)

714 bytes added , 5 December 2017

229

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 ''Text'' elements also accept	  'baseline' as reference.<br />
 If '''ref''' is a single number, the 2nd word is ignored.
+== ''Resize'' helpers ==
+=== stretchX ===
+ '''parameters''': ((elem,factor,ref='left')
+Stretchs horizontally the element .
+# 	factor		the <new-width>/<old-width> ratio.
+# 	ref			the relative point to keep in-place. May be 'left','center' or 'right'.
+* '''elem'''	element to be stretched.
+*  '''factor'''		the <new-width>/<old-width> ratio.
+*  '''ref'''	the relative point to keep inplace. May be 'left' (default),'center' or 'right'.
+<hr/>
+=== stretchY ===
+ '''parameters''': ((elem,factor,ref='top')
+Stretchs vertically the element .
+* '''elem'''	element to be stretched.
+*  '''factor'''		tthe <new-height>/<old-height> ratio.
+*  '''ref'''	the relative point to keep inplace. May be 'top','center' or 'bottom'.
 <hr/>