[cairo-bugs] [Bug 23364] New: Useless digits for float numbers in Cairo output

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23364

           Summary: Useless digits for float numbers in Cairo output
           Product: cairo
           Version: 1.8.8
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: high
         Component: pdf backend
        AssignedTo: ajohnson at redneon.com
        ReportedBy: wzhu at microstrategy.com
         QAContact: cairo-bugs at cairographics.org


I delved into source file of PDF output from Cairo. I found there are many
useless digits for float numbers. Take the following section for example:
#####
<000a0006>Tj
2.979353 1.142857 Td  
<0006000100010003>Tj
0.449219 -1.142857 Td
<000a0008>Tj
3.12221 1.142857 Td
<0006000100010003>Tj
0.449219 -1.142857 Td
######

Maybe we can change 
2.979353 1.142857 Td  
to 
2.98 1.14 Td

This will reduce the size of Cairo output. I notice there are many other
appearances for rg, RG, etc. I attach one PDF file from Cairo for references.

Thanks.


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