Text looks jagged and less readable when using textPath especially with smaller fonts




11 years ago
5 years ago


(Reporter: Duncan Loveday, Unassigned)


Firefox Tracking Flags

(Not tracked)



(1 attachment)



11 years ago
User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a3pre) Gecko/20070316 Minefield/3.0a3pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a3pre) Gecko/20070316 Minefield/3.0a3pre

Unless large fonts are used (at least 16), text placed on a textPath is much less readable and more jagged looking than the same text without using textPath. By comparison, the combination of IE6 and ASV renders text with and without textPath with much the same level of readability.

Reproducible: Always

Steps to Reproduce:
1. Open the attached textpath.svg in Firefox
Actual Results:  
The test case displays text in a selection of font sizes both with and without textPath. The textPaths are simple 45 degree downward slopes. For the smaller font sizes, the text on the textPath looks much less good than the same text in the same font size without textPath.

Expected Results:  
For any given font size, the text should look the same whether textPath is used or not.

Comment 1

11 years ago
Created attachment 260052 [details]
test SVG source
Duplicate of bug 311534 I think

Comment 3

11 years ago
....except that comment #7 in that bug says specifically that it doesn't apply to textpath.

Comment 4

9 years ago
This effect can be visible in the following example with textPath on Bezier curve, as i think:


Note: text below affected by animation above and flicker
Assignee: general → nobody
QA Contact: ian → general
Both cases are fixed using DirectWrite shaping. See bug 517642.
Fixed on trunk provided you have Vista or Windows 7 and direct write is enabled (gfx.font_rendering.directwrite.enabled = true)
Depends on: 527707
You need to log in before you can comment on or make changes to this bug.