35160 - Examples of MathML rendering

Status: RESOLVED WORKSFORME

(Core :: MathML, defect, P3)

Description

[rbs]

Paul Gartside has written some webpages, accessible from the above URL,
which contain interesting examples of mozilla compatible MathML pages.
These examples achieve the dual purpose of illustrating the current
capabilities of the MathML renderer, and of helping to see where to
further beautify the rendering of some elements.

Comment 1

[rbs]

Attachment: Screenshot of one of the examples (DynHieruni.xml)

Comment 2

[Gervase Markham [:gerv]]

This bug has not been touched for more than nine months. In most cases, that 
means it has "slipped through the net". Please could the owner take a moment to 
add a comment to the bug with current status, and/or close it.

Thank you :-)

Gerv

Comment 3

[Andreas Franke (gone)]

The url in the URL field of this bug doesn't seem to exist any more.

Comment 4

[rbs]

Attachment: screenshot - bottom half of mfrac demo

Comment 5

[rbs]

Attachment: screenshot - top half of improved <mtable> demo

Comment 6

[rbs]

Attachment: screenshot - bottom half of improved <mtable> demo

Comment 7

[rbs]

Attachment: screenshot - Partial viewsource of MathML (WYSIWYG)

Comment 8

[rbs]

Attachment: screenshot - sample equation from tbook

Comment 9

[Hrotkó Gábor]

Hi!

I found, that Firebird_20031109 and mozilla_2003102804 renders a nice equation
differently:

http://al.pmmf.hu/~roti/t.xml

Firebird_20031109:
http://al.pmmf.hu/~roti/mathml/Firebird_20031109.jpg

mozilla_2003102804:
http://al.pmmf.hu/~roti/mathml/mozilla_2003102804.jpg


Roti

Comment 10

[rbs]

http://al.pmmf.hu/~roti/t.xml

404 - Not Found
The requested URL /~roti/t.xml was not found on this server.

Comment 11

[Hrotkó Gábor]

sorry
http://al.pmmf.hu/~roti/mathml/t.xml

Comment 12

[rbs]

It works for me (Wink2K) with a latest build.

Comment 13

[Hrotkó Gábor]

Hi!

  Tested with the newest mozilla nightly built, the equation is bad, because if 
you look at it - comparing to the firebird rendering (links presented earlyer to 
screenshots) - in mozilla, there are missing two minus symbols, and the brace 
after the second equality sign is too small. In Firebird, only the absolute 
signs are too big.

Roti

Comment 14

[M.J.G.]

All of the links in this bug result in 404s. Please update the links or resolve INVALID.

Michael

Comment 15

[Hrotkó Gábor]

I have restored these:
http://al.pmmf.hu/~roti/t.xml
http://al.pmmf.hu/~roti/mathml/Firebird_20031109.jpg

but I could not restore this:
http://al.pmmf.hu/~roti/mathml/mozilla_2003102804.jpg

Comment 16

[Hrotkó Gábor]

sorry
http://al.pmmf.hu/~roti/mathml/t.xml

Comment 17

[M.J.G.]

Uhm, the URLs for the jogs don't exist any more, the xml is invalid, and the bug entry does not request a feature nor report a bug.

Can we close or modify the bug please?

Comment 18

[Hrotkó Gábor]

the corrected xml and the screenshots are here:

http://al.pmmf.hu/~roti/mathml/

tested with firefox 3.0.11 and opera 9.64:

http://al.pmmf.hu/~roti/mathml/firefox3.0.11.jpg
http://al.pmmf.hu/~roti/mathml/opera964.jpg

Comment 19

[Hrotkó Gábor]

Today I have upgraded to firefox 3.5
Now it says:
"Error loading stylesheet: Unknown error occured (805303f4)
http://www.w3.org/Math/XSL/pmathml.xsl"

Comment 20

[Frédéric Wang (:fredw)]

I think the original purpose of this bug was to discuss how the MathML rendering could be improved. However since Paul Gartside's demos are no longer available, I agree with Michael that this bug should be closed.

Roti => If I understand well, you think that the vertical bar should not stretch so much. The REC says:

"If a stretchy operator is a direct sub-expression of an mrow  element, or is the sole direct sub-expression of an mtd element in some row of a table, then it should stretch to cover the height and depth (above and below the axis) of the non-stretchy direct sub-expressions in the mrow element or table row, unless stretching is constrained by minsize or maxsize  attributes."

Hence I think Mozilla's rendering is correct, you simply need to move lines 57-75 inside an <mrow></mrow>. Note that the parentheses don't stretch because you put them inside a mrow:

<mrow>
  <mo></mo>
  <mo>(</mo>
</mrow>

(you should actually simply use <mo>(</mo>)

If you think the stylesheet error should be fixed, please open a separate bug (but I guess it's an XSLT bug rather than MathML one).