asp net pdf viewer user control c# : Split pdf Library SDK class asp.net wpf azure ajax preview-latex1-part1973

Chapter1:Introduction
5
texdoc preview
willdisplayit.
1.6 Availability
Thepreview-latexproject isnowpart ofAUCT
E
Xandaccessible aspart oftheAUCT
E
X
projectpage(http://savannah.gnu.org/projects/auctex).Youcangetitsfilesfromthe
AUCT
E
Xdownloadarea(ftp://ftp.gnu.org/pub/gnu/auctex). AsofAUCT
E
X11.81,
preview-latexshouldalreadybeintegratedintoAUCT
E
X,sonoseparatedownloadwillbe
necessary.
You will also find .rpm files there for r Fedora andpossibly SuSE. . Anonymous
Git
is
availableaswell.
1.7 Contacts
BugreportsshouldbesentbyusingM-xpreview-report-bugRET,asthiswillfillinalot
ofinformationinterestingtous. Iftheinstallationfails s (butthisshouldbearareevent),
reportbugstobug-auctex@gnu.org.
There is s a general l discussion n list for AUCT
E
X which also o covers s preview-latex, look
at http://lists.gnu.org/mailman/listinfo/auctex. . For r more information n on
the mailing list, , send d a a message with h just the word “help” ” as subject or body to
auctex-request@gnu.org. For r thedevelopers, , there is s the auctex-devel@gnu.orglist;
itwouldprobablymakesensetodirectfeaturerequestsandquestionsaboutinternaldetails
there. Thereisalow-volumeread-onlyannouncementlistavailabletowhichyoucansub-
scribebysendingamailwith“subscribe”inthesubjecttoinfo-auctex-request@gnu.org.
Offerstosupportfurtherdevelopmentwillbeappreciated.Ifyouwanttoshowyourap-
preciationwithadonationtothemaindeveloper,youcandosoviaPayPaltodak@gnu.org,
andofcourseyoucanarrangeforservicecontractsorforaddedfunctionality.Takealook
attheTODOlistforsuggestionsinthatarea.
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Chapter2:Installation
6
2 Installation
InstallationisnowbeingcoveredinSection“Installation”intheAUCT
E
Xmanual.
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Chapter3:Keybindingsanduser-levellispfunctions
7
3 Keybindingsanduser-levellispfunctions
preview-latexaddskeybindingsstartingwithC-cC-ptothesupportedmodesofAUCT
E
X
(SeeInfofile auctex,node‘KeyIndex’). . It t willalsoaddits own‘Preview’menuinthe
menubar,aswellasaniconinthetoolbar.
The followingonly describestheinteractive use: : viewthedocumentationstringswith
C-hfifyouneedtheLispinformation.
C-cC-pC-p
preview-at-point
Preview/Generatepreviews(ortoggle)atpoint
Ifthecursorispositionedonorinsideofapreviewarea,thistogglesitsvisibil-
ity,regeneratingthepreviewifnecessary. Ifnot,itwillrunthesurroundings
throughpreview. Thesurroundingsincludeallareasuptothenextvalidpre-
view,unlessinvalidpreviewsoccurbefore,inwhichcasetheareawillinclude
thelastsuchpreviewineitherdirection. Andoverridinganyotheraction,ifa
regionisactive(transient-mark-modeor zmacs-regions),itisrunthrough
preview-region.
<mouse-2>
The middle mouse buttonhas a similar action boundto it as s preview-at-
point,onlythatitknowswhichpreviewtoapplyittoaccordingtotheposition
of the click. . Youcan n click k either anywhere ona previewed d image, or r when
thepreviewisopenedandshowingthesourcetext,youcanclickontheicon
precedingthesourcetext.Inotherareas,theusualmousekeyaction(typically:
paste)isnotaffected.
<mouse-3>
Therightmousekeypopsupacontextmenuwithseveraloptions:togglingthe
preview,regeneratingit,removingit(leavingtheunpreviewedtext),copying
thetext insideof thepreview, , andcopyingit t inaformsuitable for copying
as animage into amailor r news s article. . This s is s aone-imagevariant t ofthe
followingcommand:
C-cC-pC-w
preview-copy-region-as-mml
CopyaregionasMML
This commandis alsoavailableasavariantinthecontextmenuontheright
mousebutton(where the regionis thepreviewthathasbeenclickedon). . It
copiesthecurrentregionintothekillbufferinaformsuitableforcopyingasa
textincludingimagesintoamailornewsarticleusingmml-mode(seeSection
“Composing”inEmacsMIME).
Ifyouregenerateor otherwise killthepreviewinitssourcebuffer beforethe
mailornews gets posted,thiswillfail. . Alsoyoushouldgenerateimagesyou
want to send d with preview-transparent-border set t to nil, , or r the images
willhaveanuglyborder.preview-latexdetectsthisconditionandaskswhether
toregeneratetheregionwithbordersswitchedoff. Asthisisanasynchronous
operationrunninginthebackground,you’llneedtocallthiscommandexplicitly
againtogetthenewlygeneratedimagesintothekillring.
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Chapter3:Keybindingsanduser-levellispfunctions
8
Previewyourarticleswithmml-preview(onM-mP,orC-cC-mPinEmacs22)
tomakesuretheylookfine.
C-cC-pC-e
preview-environment
Preview/Generatepreviewsforenvironment
Runpreview on L
a
T
E
Xenvironment. The e environments in preview-inner-
environmentsaretreatedasinnerlevelssothatforinstance,thesplitenviron-
mentin\begin{equation}\begin{split}...\end{split}\end{equation}is
properlydisplayed.Ifcalledwithanumericargument,thecorrespondingnum-
berofoutwardnestedenvironmentsistreatedasinnerlevels.
C-cC-pC-s
preview-section
Preview/Generatepreviewsforsection
RunpreviewonthisL
a
T
E
Xsection.
C-cC-pC-r
preview-region
Preview/Generatepreviewsforregion
Runpreviewoncurrentregion.
C-cC-pC-b
preview-buffer
Preview/Generatepreviewsforbuffer
Runpreviewonthecurrentbuffer.
C-cC-pC-d
preview-document
Preview/Generatepreviewsfordocument
Runpreviewonthecurrentdocument.
C-cC-pC-cC-p
preview-clearout-at-point
Preview/Removepreviewsatpoint
Clearout(remove)thepreviewsthatareimmediatelyadjacenttopoint.
C-cC-pC-cC-s
preview-clearout-section
Preview/Removepreviewsfromsection
Clearoutallpreviewsincurrentsection.
C-cC-pC-cC-r
preview-clearout
Preview/Removepreviewsfromregion
Clearoutallpreviewsinthecurrentregion.
C-cC-pC-cC-b
preview-clearout-buffer
Preview/Removepreviewsfrombuffer
Clearoutallpreviewsincurrentbuffer. Thismakesthecurrentbufferloseall
previews.
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Chapter3:Keybindingsanduser-levellispfunctions
9
C-cC-pC-cC-d
preview-clearout-document
Preview/Removepreviewsfromdocument
Clearoutallpreviewsincurrentdocument.Thedocumentconsistsofallbuffers
thathave thesamemasterfile asthecurrent buffer. . Thismakesthecurrent
documentloseallpreviews.
C-cC-pC-f
preview-cache-preamble
Preview/Turnpreamblecacheon
Dumpapregeneratedformatfile. Fortherestofthesession,this s fileisused
whenrunningonthesamemasterfile. UsethisifyouknowyourL
a
T
E
Xtakes
alongtimetostartup,thespeedupwillbemostnoticeablewhengenerating
singleorfewpreviews.Ifyouchangeyourpreamble,dothisagain.preview-latex
willtrytodetectthenecessityofthatautomatically wheneditingchanges to
thepreamblearedonefromwithinEmacs,butitwillnotnoticeifthepreamble
effectivelychangesbecausesomeincludedfileorstylefileistamperedwith.
C-cC-pC-cC-f
preview-cache-preamble-off
Preview/Turnpreamblecacheoff
Clear the pregeneratedformat file andstopusing preambles for the current
document.Ifthecachinggivesyouproblems,usethis.
C-cC-pC-i
preview-goto-info-page
Preview/ReadDocumentation
Readtheinfomanual.
M-xpreview-report-bugRET
preview-report-bug
Preview/ReportBug
This is s the preferredway of reporting bugs s as s it willfillin n what t version n of
preview-latexyouareusingas wellas versions ofrelevantothersoftware,and
alsosomeofthemoreimportantsettings. Pleaseusethismethodofreporting,
ifatallpossibleandbeforereportingabug,havealookatChapter5[Known
problems],page12.
C-cC-k
LaTeX/TeXOutput/KillJob
Kills thepreview-generatingprocess. . This s is really anAUCT
E
Xkeybinding,
butitisincludedhereasahint.Ifyouaregeneratingapreviewandthenmake
achangetothebuffer,preview-latex maybeconfusedandplacethepreviews
wrong.
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break up pdf file; split pdf into individual pages
Chapter4:Simplecustomization
10
4 Simplecustomization
Customization options can be e found d by y typing g M-xcustomize-groupRETpreviewRET.
Remembertosettheoptionwhenyouhavechangedit.Thelistofsuggestionscanbemade
verylong(andiscoveredindetailinChapter6[Foradvancedusers],page14),butsome
are:
 Changethecolorofthepreviewbackground
Ifyouuseanon-whitebackgroundinEmacs,youmighthavecolorartifactsattheedges
ofyourpreviews.Playingaroundwiththeoptionpreview-transparent-colorinthe
PreviewAppearancegroupmightimprovethings.Withsomesettings,thecursormay
coverthewholebackgroundofapreview,however.
Thisoptionisspecifictothedisplayengineinuse.ItsdefaultisdifferentinEmacs21
andEmacs22,anditisnotavailableinXEmacs.
 Showing\labels
Whenusing preview-latex, the \labelsare hidden by thepreviews. . Itis s possible to
make themvisible inthe outputbyusingthe L
a
T
E
Xpackageshowkeysalternatively
showlabels.However,theboxesoftheselabelswillbeoutsidetheregionpreview-latex
considersas the preview image. . To o enablea similar mechanism internal to preview-
latex,enabletheshowlabelsoptioninthevariablepreview-default-option-listin
thePreviewLatexgroup.
Itmustbenoted,however,thatamuchbetterideamaybetousetheRefT
E
Xpackage
formanagingreferences. SeeSection“RefTeXinaNutshell”inTheRefT
E
XManual.
 Openpreviewsautomatically
Thecurrentdefaultistoopenpreviewsautomaticallywhenyouenterthemwithcursor
left/rightmotions. Auto-openedpreviewswillcloseagainoncethecursorleavesthem
again(thisisalsodonewhendoingincrementalsearch,or query-replaceoperations),
unlessyouchangedanythinginit.Inthatcase,youwillhavetoregeneratethepreview
(via e.g., , C-cC-pC-p). . Other r options for preview-auto-reveal are e available e via
customize.
 Automaticallycachepreambles
Currentlypreview-latex asks youwhether youwanttocache the document preamble
(everythingbefore \begin{document}) before it generates previews for abuffer r the
firsttime. Cachingthepreamblewillsignificantlyspeedupregenerationofpreviews.
Thelargeryourpreambleis,themorethiswillbeapparent.Onceapreambleiscached,
preview-latexwilltrytokeeptrackofwhenitischanged,anddumpafreshformatin
thatcase.Ifyouexperienceproblemswiththis,orifyouwantittohappenwithoutask-
ingyouthefirsttime,youcancustomizethevariablepreview-auto-cache-preamble.
 Attempttokeepcountersaccuratewhenediting
Sincepreview-latexfrequentlyrunsonlysmallregionsthroughL
a
T
E
X,valueslikeequa-
tioncounters are not consistentfromruntorun. . Ifthisbothersyou,customizethe
variablepreview-preserve-counterstot(thisisconsultedbypreview-required-
option-list). L
a
T
E
Xwillthenoutputaloadofcounterinformationduringcompila-
tion,andthisinformationwillbeusedonsubsequentupdatestokeepcounterssetto
Chapter4:Simplecustomization
11
usefulvalues. Theadditionalinformationtakesadditionaltimetoanalyze,butthisis
relevantmostlyonlywhenyouareregeneratingallpreviewsatonce,andmaybeyou
willbelesstemptedtodosowhencountersappearmoreorlesscorrect.
 PreviewyourfavouriteL
a
T
E
Xconstructs
Ifyouhaveacertainmacroorenvironmentthatyouwanttopreview,firstcheckifit
canbechosenbycutomizingpreview-default-options-listinthePreviewLatex
group.
Ifitisnotavailablethere,youcanaddittopreview-default-preamblealsointhe
PreviewLatex group, , by y adding g a \PreviewMacro or \PreviewEnvironment t entry
(seeSection6.1.2[Providedcommands],page18)afterthe\RequirePackageline. For
example,ifyouwanttopreviewthecenterenvironment,presstheShowbuttonand
thelastINSbutton,thenadd
\PreviewEnvironment{center}
inthespacethatjustopened.Notethatsincecenterisagenericformattingconstruct
ofL
a
T
E
X,ageneralconfigurationlikethatisnotquiteprudent. Youbettertodothis
onaper-documentbasesothatitiseasytodisablethisbehaviorwhenyoufindthis
particularentrygivesyoutrouble.
Onepossibilityistosavesuchsettingsinthecorrespondingfile-localvariableinsteadof
yourglobalconfiguration(seeSection“LocalVariablesinFiles”inGNUEmacsMan-
ual). Aperhapsmoreconvenientplaceforsuchoptionswouldbeinaconfigurationfile
inthesamedirectorywithyourproject(seeSection6.1.1[Packageoptions],page14).
Theusualfileforpreview-latexpreconfigurationisprauctex.cfg. Ifyoualsowantto
keepthesystemwidedefaults,youshouldaddaline
\InputIfFileExists{preview/prauctex.cfg}{}{}
toyourownversionofprauctex.cfg(thisisassumingthatglobalfilesrelatingtothe
previewpackageareinstalledinasubdirectorypreview,thedefaultbehavior).
 Don’tpreviewinlinemath
Ifyouhaveperformanceproblemsbecauseyourdocumentisfullofinlinemath($...$),
orifyourusageof$conflictswithpreview-latex’s,youcanturnoffinlinemathpreviews.
InthePreviewLatexgroup,removetextmathfrompreview-default-option-list
bycustomizingthisvariable.
Chapter5:Knownproblems
12
5 Knownproblems
Anumberofissuesareknownconcerningthe interoperationwithvariousothersoftware.
Someoftheknownproblemscanbesolvedbymovingtonewerversionsoftheproblematic
softwareorbysimplepatches.
Ifyoufindsomethingnotmentionedhere,pleasesendabugreportusingM-xpreview-
report-bugRET,whichwillfillinalotofinformationinterestingtousandsendittothe
bug-auctex@gnu.orglist.Pleaseusethebugreportingcommandsifatallpossible.
5.1 FontproblemswithDvips
Somefontshavebeenreportedtoproducewrongcharacterswithpreview-latex.preview-latex
callsDvipsbydefaultwiththeoption-Pwwwinordertogetscalablefontsforniceresults.
Ifyouareusingantialiasing,however,theresultsmightbesufficientlynicewithbitmapped
fonts,anyway. Youmighttry y -Ppdf for another stab b at t scalablefonts, , or r other printer
definitions. Use
M-x customize-variable RET T preview-fast-dvips-command RET
and
M-x customize-variable RET T preview-dvips-command RET
inordertocustomizethis.
One particular problem is that t several l printer setup p files s (typically in n a file called
/usr/share/texmf/dvips/config/config.pdf if f you are using g the -Ppdf f switch) ) con-
taintheGoptionfor‘charactershifting’. Thisoptionwillresultin‘fi’beingrenderedas
‘£’(BritishPoundssign)inseveralfonts,unlessyourversionofDvipshasalong-standing
buginitsimplementationfixed(onlyveryrecentversionsofDvipshave).
5.2 Toosmallboundingboxes
Theboundingbox of apreview isdeterminedbytheL
a
T
E
Xpackageusing the pure T
E
X
boundingboxes. IfthereismaterialextendingoutsideoftheT
E
Xbox,thatmaterialwill
be missingfromthepreview image. . This s happens for thelabel-showingboxes fromthe
showkeyspackage.Thisparticularproblemcanbecircumventedbyusingtheshowlabels
optionofthepreviewpackage.
Ingeneral,youshouldtry tofix theproblemin n the T
E
Xcode,likeavoidingdrawing
outsideofthepicturewithPSTricks.
Onepossibleremedyistosetpreview-fast-conversionto‘Off’(seeSection6.2[The
Emacs interface], , page 21). . The e conversion will take e more e time, but willthenuse the
boundingboxesfrom
EPS
filesgeneratedbyDvips.
Dvipsgenerallydoesnotmissthings,butitdoesnotunderstandPostScriptconstructs
like \resizebox or \rotate e commands, , so o will generate e rather r wrong boxes for those.
Dvips canbehelpedwiththe psfixbb package optiontopreview (see Section n 6.1 [The
LaTeXstylefile],page14),whichwilltagthecornersoftheincludedT
E
Xbox. Thiswill
mostlybeconvenientforpure PostScriptstufflikethatcreatedbyPSTricks,whichDvips
wouldotherwisereservenospacefor.
Chapter5:Knownproblems
13
5.3 x-symbolinteroperation
Thankstothe workof ChristophWedler,startingwithversion‘4.0h/beta’ofx-symbol,
thelineparsingofAUCT
E
Xandpreview-latexisfully supported. . Earlier r versions exhibit
problems. However,versionsbefore4.2.2willcause e adrastic slowdownofpreview-latex’s
parsingpass,sowedon’trecommendtouseversionsearlierthanthat.
If you wonder what t x-symbol is, it t is s a a package that t transforms s various s tokens s and
subscripts to o amore readable form while editing and offers afew input methods handy
especiallyfordealingwithmath.Takealookathttp://x-symbol.sourceforge.net.
x-symbolversions upto4.5.1-beta at least require an8bit-cleanT
E
Ximplementation
(meaningthatitsterminaloutputshouldnotuse‘^^’-startedescapesequences)forcoop-
erationwithpreview-latex. Laterversionsmaygetalongwithoutit,likepreview-latexdoes
now.
Ifyouexperienceproblemswithcirc.texinconnectionwithbothx-symbolandLatin-
1 characters, , you u may need d to change e your r language environment or, as a a last t resort,
customizethevariableLaTeX-command-stylebyreplacingthecommandlatexwithlatex
-translate-file=cp8bit.
5.4 Middle-clickspasteinsteadoftoggling
Thisisprobablythefaultofyourfavoritepackage. flyspell.elandmouse-drag.elare
knowntobeaffectedinversions beforeEmacs21.3. . Upgradetothemostrecentversion.
WhatversionofXEmacsmightcontainthefixesisunknown.
isearch.elalsoshows this effectwhilesearchesareinprogress,but thecodeis such
acomplicatedmessthatnopatchisinsight. Betterjustendthesearchwith h RETbefore
togglingandresumewithC-sC-sorsimilar afterwards. . Sincepreviewsoverthecurrent
matchwillauto-open,anyway,thisshouldnotbemuchofaprobleminpractice.
Chapter6:Foradvancedusers
14
6 Foradvancedusers
Thispackageconsists oftwoparts: : aL
a
T
E
Xstylethatsplitstheoutput intoappropriate
partswithonepreviewobjectoneachpage,andanEmacs-lisppartintegratingthething
intoEmacs(aidedbyAUCT
E
X).
6.1 TheL
a
T
E
Xstylefile
Themainpurposeofthispackageistheextractionofcertainenvironments(mostnotably
displayedformulas)fromL
a
T
E
Xsourcesasgraphics.Thisworkswith
DVI
filespostprocessed
byeitherDvipsandGhostscriptordvipng,butitalsoworkswhenyouareusingPDFT
E
X
forgeneratingPDFfiles(usuallyalsopostprocessedbyGhostscript).
Currentusesofthepackageincludethepreview-latexpackageforWYSIWYGfunction-
alityintheAUCT
E
Xeditingenvironment,generationof previewsinLyX,aspart ofthe
operationoftheps4pdfpackage,thetbookXMLsystemandsomeothertools.
Producing
EPS
files with h Dvipsanditsderivatives s usingthe -Eoptionis not agood
alternative: Peoplemakedobyfiddlingaroundwith\thispagestyle{empty}andhoping
forthebest(namely,thatthespecifiedcontentswillindeedfitonsinglepages),andthen
tryingtoguessthebaselineoftheresultingcodeandstuff,butthisisatbestdissatisfactory.
Thepreviewpackageprovidesaneasywaytoensurethatexactlyonepageperrequestgets
shipped,withawell-definedbaselineandnopagedecorations. Whileyoustillcanusethe
previewpackagewiththe‘classic’
dvips -E -i
invocation,therearebetterwaysavailablethatdon’trelyonDvipsnotgettingconfusedby
PostScriptspecials.
Formostapplications,you’llwanttomakeuseofthetightpageoption.Thiswillembed
thepagedimensionsintothePostScriptorPDFcode,obliteratingtheneedtousethe-E
-ioptionstoDvips.YoucanthenproduceallimagefileswithasinglerunofGhostscript
fromasinglePDForPostScript(asopposedto
EPS
)file.
Various options existthat willpassT
E
Xdimensionsandother informationabout the
respectiveshippedoutmaterial(includingdescendersize)intothelogfile,whereexternal
applicationsmightmakeuseofit.
The possibilityforgeneratingawholeset ofgraphicswithasinglerunofGhostscript
(whetherfromL
a
T
E
Xor PDFL
a
T
E
X)increases bothspeedandrobustnessofapplications.
Itisalsofeasibletousedvipngona
DVI
filewiththeoptions
-picky -noghostscript
toomitgeneratinganyimagefilethatrequiresGhostscript,thenletascriptgenerateall
missingfilesusingDvips/Ghostscript.Thiswillusuallyspeeduptheprocesssignificantly.
6.1.1 Packageoptions
Thepackageisincludedwiththecustomary
\usepackage[options]{preview}
Youshouldusuallyloadthispackageasthelastone,sinceitredefines severalthingsthat
otherpackagesmayalsoprovide.
Thefollowingoptionsareavailable:
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