HTML and CSS Reference
In-Depth Information
ideographic
The bottom of horizontal writing script glyphs such as Han ideographs, Katakana,
Hiragana, and Hangul.
bottom
Thebottomofthe
em square
ofthefontglyphs.Choosingthisbaseline will pushthefont
the farthest up (lowest
y
position) the canvas.
So,forexample, ifyouwanttoplace yourtextwitha
top
baseline, youwouldusethefollow-
ing code:
context
.
textBaseline
=
"top"
;
All text displayed on the canvas afterward would have this baseline. To change the baseline,
you would change the property:
context
.
textBaseline
=
"middle"
;
Inreality,youwillprobablychooseasinglebaselineforyourappandstickwithit,unlessyou
are creating a word-processing or design application that requires more precise text handling.
Horizontal alignment
The
context.textAlign
propertyrepresents thehorizontal alignment ofthetext basedonits
x
position. These are the available
textAlign
values:
center
center
The dead horizontal center of the text. We can use this alignment to help center our text in
Text Arranger.
start
Text is displayed directly after the text
y
position.
end
All text is displayed before the text
y
position.
left
Text is displayed starting with the
y
position of the text in the leftmost position (just like
start
).
