Apache OpenOffice (AOO) Bugzilla – Issue 31787
square brackets in math formula are not displayed correctly
Last modified: 2005-01-03 14:53:03 UTC
hi, Square brackets in math formulas are not displayed correctly even at different levels of zoom. The bottom, the upper or both ends of the brackets are not displayed. I attached a document made within Windows XP. I found that doing the same document within windows 98se is better. The sqaure brackets are displayed correctly. The problem is not new. I hope it is fixed soon because there is no way to avoid sometimes to enter square brackets into a math equation.
Created attachment 16627 [details] text with math equations
TL->MRU: I cannot reproduce this in SRC680m53. Please check. Thanks!
MRU->HDU: this is a OpenSymbol-only problem. With StarSymbol font this does not happen. Please have a look, if there is a problem in displaying the characters or if the font itself has a problem. Thanks!
HDU->MRU: thanks for mentioning that this problem depends on the availability of the OpenSymbol and StarSymbol fonts. So the root cause is the same as in issue 32490 (SRC680m53) and issue 33406 (in OOo1.1.3).
HDU->MRU: please verify *** This issue has been marked as a duplicate of 33406 ***
Reopened.
MRU->HDU: is does not seem to be a duplicate. This issue still occurs with 645m49 and 680m56.
*** Issue 31667 has been marked as a duplicate of this issue. ***
*** Issue 35783 has been marked as a duplicate of this issue. ***
HDU->IH: the root cause of the problem is that the small lines at the top and bottom of OpenSymbol's left (U+005B) and right bracket (U+005D) glyph are not properly hinted. At some small pixel sizes Win32 "optimizes them away". Please adjust these glyphs so they look right also at small pixel sizes.
reassigning
IH: duplicate to i22312 *** This issue has been marked as a duplicate of 22312 ***
Here is the display I get for the attached document under OOo 1.1.3 (Windows 2000 Pro) : http://jmmolina.free.fr/t_30510/text_with_math.png image. Note that the first formula is « L= 1 over 2 [x^2 + y^2]^{1over 2} » and the second is « %theta =[ 1 over {1+%beta}] » so for both formulas the brackets are not properly. Using the page preview feature doesn't solve the problem, the formulas are badly displayed at 100% and even 200% zooming : http://jmmolina.free.fr/t_30510/text_with_math_page_preview_100.png and http://jmmolina.free.fr/t_30510/text_with_math_page_preview_200.png images. Last but not least, I tried to print the document and the formulas are correctly displayed so this issue is not related to other formula printing issues, if any.
Commenting issue 22312 I found out that the formulas were correctly displayed at 400% zooming : http://jmmolina.free.fr/t_30510/text_with_math_page_preview_400_formula_1.png and http://jmmolina.free.fr/t_30510/text_with_math_page_preview_400_formula_2.png images.
IH: closed.