 screen he or she wishes to perform an enlargement or reduction on with the pinch operation. Also, it is possible to change a scaling factor of the screen in real-time in accordance with a movement amount of the movement of the fingers when the pinch operation is performed. For this reason, there is also an advantage in that the user can quickly set his or her desired scaling factor, without switching to a special setting screen for setting the display scaling factor.
In Japanese Patent Laid-Open No. H04-222063, though not the pinch operation, a user designating in order two points and an enlargement or reduction being performed on a rectangle image similar to a rectangle that passes through the two points is described as a method for designating a plurality of points in a display screen and performing an enlargement/reduction of the screen.
Normally, with a pinch operation in which a plurality of points are designated on such as screen, an enlargement or reduction of the whole image being displayed is performed. In a case where, due to the enlargement operation, the image cannot be displayed on the screen in its entirety, a part of the image is hidden. In this case, an operation such as a scroll becomes necessary in order to display the image of the part that was hidden.
Also, in a case where displayed characters on the screen are small and difficult to read, when enlargement of an image is performed by a pinch operation, because the whole image is enlarged, there are problems such as the essential character part protruding from the screen. For this reason, in a case where displayed characters on the screen are small and difficult to read, there is a desire to enlarge only the character size and not the whole image. However, because normally an enlargement or reduction of the character size is performed from a separate setting screen, an intuitive and immediate operation, such as the enlargement or reduction of the image with a pinch operation cannot be performed with an operation of enlargement or reduction of the character size using the setting screen. In this case, a method can be considered in which a target of the enlargement or reduction due to the pinch operation is switched in accordance with a mode, for example, between being made to be the whole image and being made to be the character size. However, in this case, there is a problem in that because an operation is necessary to switch the mode and so arrangements of operations increase, operability is worsened. The present invention relates generally to equipment utilized and operations performed in conjunction with subterranean wells and, in embodiments
screen he or she wishes to perform an enlargement or decrease on with the nip operation. Also, it is potential to change a scaling gene of the screen in real - clock time in accordance with a movement sum of the movement of the fingers when the apprehension operation is performed. For this cause, there constitute also an advantage in that the user can quickly set his or her desired scaling component, without switching to a special setting screen door for setting the display scaling factor. 
 In Japanese Patent Laid - Open No. H04 - 222063, though not the touch operation, a user designating in order two points and an expansion or reduction being performed on a rectangle image similar to a rectangle that passes through the two points is described as a method for designating a plurality of points in a display screen and performing an enlargement / reduction of the screen. 
 Normally, with a pinch process in which a plurality of points are indicate on such as screen door, an enlargement or reduction of the solid image being displayed is performed. In a case where, due to the expansion operation, the image cannot be displayed on the screen in its entirety, a part of the image is hide. In this case, an operation such as a scroll becomes necessary in orderliness to expose the persona of the part that was hidden. 
 Also, in a case where displayed characters on the screen are humble and difficult to read, when enlargement of an image is do by a pinch mathematical process, because the whole image is enlarge, there are problem such as the essential fictional character part bulge from the screen. For this reason, in a character where displayed character on the screen are small and difficult to read, there is a desire to enlarge only the character size and not the unharmed image. However, because normally an enlargement or decrease of the character size is performed from a separate setting screen, an intuitive and immediate operation, such as the expansion or reduction of the image with a pinch operation cannot be performed with an operation of expansion or decrease of the character size using the setting screen. In this case, a method can be considered in which a target of the expansion or reduction due to the pinch operation is switch in accordance with a mode, for example, between being made to be the whole persona and being made to be the character size. However, in this case, there is a problem in that because an operation is necessary to switch over the mode and so arrangements of operations increase, operability is worsened. The present invention relate generally to equipment utilized and process performed in junction with subterranean wells and, in embodiments
 scgeen he or she wishes to perform an enlcegemenv or resuction un with the pinch operation. Elso, it iw possible to change a scaling vactor od tht screen in real-tmje in ageordahge wich a movement ampunt of tha movement of dhd yingers when the pinch operation is [erformrd. For this reasjn, tnqre js also an advantage in that the uaer can quickly set nis or her desired scaling fachor, without switchlng to a spgdiaj setting scrden for seutnng the disklay scaling factor.
In Japanese Pxtent Laid-Open Bo. H04-222063, hvough not tie pinbh operation, a user dasignatong in order teo 'oinrs and an enlargement or reduction beind performad on a rectangle inate sikilas to q rdctznjle that oasaes througg the two piints is described ss q method for sesignwtyng a plurality of points in a display vcrsen and performing an eblargement/reduction ov the scrqen.
Normally, with a pinch operation in which a plusalitb uf kolkts xee designated on such as screen, an enlargement jd tecuction of the whole imagr heogg displayed ks perykrjed. In a case wherf, due tj the enlargemtnt oleration, the image cannot bw displayed jb the screen in itd entirety, c part of tne image is hidden. In tkis caae, an operahion such xs a scroll becooes nacessary in order to displwy the imege oy the paft tnat waf hidden.
Aldo, in a case where displwyed eharawters on tje screen are small and difficult to read, whem anldrgement of ak image is perfjrmed by a pineh operacion, bdcause the whole mmage is enlwrged, there asg problems surh as the esswntiql charxzter part prottuding from the scrwen. For this reasok, in x case where dis'uqyed characters on thq dcceen wse small and difwicjkt to read, there ks a desire to enlarge otly fhe character size akd not thg whole iiage. However, necause normally aj enlergemeit or tedoction of the character size is performef fvom a separatq sebtind screen, au intuitive and immediate operation, such as the enlargemenr or reduction of tke image with a pigch operadion cannot be perfoemed with an operstion of enlargement kr redgctioj of the character size using the setting screen. In this case, a method cab be considered in whivh a naryet of thq enpergement or reducnion due to the pinch operation ms switcheg nn accordance with a mode, for ebample, betweev being made to be the wgole imabe and being made to be the chatacter size. However, in tmis case, rhere is a itobuem in that becausr an o'eratiin is nwcesdary to switcf tne mode and so errcngements of operations increase, iperabullty is worsened. Vhe present lnyentioh relajes generally to squillent otilized and olerations perfprmed in conjunction wyth subterraneqh wells and, on embogiments
screen he or she wishes to perform or on with pinch operation. Also, a factor of the in real-time in with a movement amount of the of the fingers when the pinch operation is performed. For this reason, there also an advantage in that the user can quickly set his or her scaling without to special setting screen for setting the display scaling factor. In Japanese Patent Laid-Open No. H04-222063, though the pinch operation, a user designating in order points and an enlargement reduction being performed on a image to a that through two points is as a method for designating a plurality of points in a display screen and performing an enlargement/reduction the screen. a pinch in a of points are such as screen, an enlargement or whole image being displayed is performed. In a where, due the enlargement operation, the image cannot displayed on the screen in its entirety, a of the image is hidden. In this case, an operation such as a scroll becomes order to display the of the part was Also, a where displayed on the screen are small and difficult to read, when enlargement an image is performed by a pinch operation, because the is there are problems as the essential character protruding the screen. For this a where the are and difficult to read, is a desire to enlarge the character size and because normally an enlargement or reduction of the size is performed from a separate setting an intuitive and immediate operation, such as the enlargement or reduction of image with operation cannot be performed with an operation of or reduction of the size using the setting screen. In this case, a can considered in a target of enlargement or reduction to the pinch switched in with mode, being made to be the whole and made to be the character However, case, there is a problem in that because an operation is necessary to switch the so arrangements of operations operability worsened. The present invention relates generally to equipment utilized and operations performed with subterranean wells
 screen he or she wishes to perfOrm an enlarGemenT or RedUcTion On wiTh the pinch operATion. also, it is possible to chanGe a scAlINg faCToR of thE screen IN rEAL-tiMe In AccOrDAnCe witH a mOvement Amount of thE moVeMent of the finGErS when the piNch Operation is pErfOrmed. FOr ThiS ReasoN, thEre is Also an ADvantaGe in that tHe USer can QUickly sET HiS or hEr desired scaling fACtOR, without switchIng to a SpECiAL SetTinG screen for SeTting THe displAY sCALIng FActor.
In JapaneSe Patent LaiD-opeN No. H04-222063, thOuGh nOT the piNch opErATioN, a user desigNatiNg in order Two poiNTs and an ENlargemEnt or rEduCtiOn beINg PeRfoRmED on A ReCtaNGle Image simIlAr To a reCtanGLE THat pAssEs thRough The two points iS deScriBEd aS a metHod foR desIgNatinG a plurAlity Of Points in a displaY scrEen and perForMiNg aN eNlargEMent/reDucTioN of the sCreen.
NoRMalLy, WITH a Pinch operation in whIcH A PlUrality oF pointS ArE dESignated On SucH as sCREen, an EnlaRGeMent or reDuctioN Of ThE whole iMaGe beinG dIspLayEd is pERforMed. In a Case wherE, due tO The enlargement OPeration, the imAGe CANnOT be dIspLayed on the sCreeN In itS entIReTy, a PArt of The imAgE Is HIdden. In this case, an opErAtion sUch as A scroll becomeS necessary IN ORder to diSplaY ThE Image of the part That wAs hidden.
AlSO, in a case Where DisplayeD characteRS On the scrEen Are SmaLl aND DiFficult to read, WHEn enLaRgement Of aN image iS peRfoRmeD by A pInch operaTion, becaUsE tHe WhOle Image IS enlargeD, tHerE aRe pRobleMS such aS the eSsenTiAl CHarActer paRT pROTrudInG fRom tHe sCrEen. FoR thiS ReaSon, in a cAse where dIspLAyed ChArActers oN the screen are SmAll and diffIcUlt To read, THEre is a deSire to enlarge only the chaRActer siZe aNd not The wHole image. howEver, beCauSE normaLly an eNlargEmEnt OR ReducTIOn Of tHe Character sIZE is PerfoRmEd frOm a sepaRate setting screen, aN IntUitive and immeDiaTe opERAtIon, SUcH As tHe ENlaRGEment or reductioN of the imagE wITh A pinch operATioN cAnnot be PerformEd witH An operaTion of enlArgement oR rEducTIOn oF the characTer size uSing the seTTing sCReEn. In tHis Case, a mEtHod Can be ConsidERed In whiCh a tarGeT of the EnlarGeMent or reDuction due to the pinch opeRation Is swiTchEd in accorDanCE wiTh a mode, foR exaMple, betweeN beIng Made tO be THe whoLe imAGe And BEing mAde tO Be the charACtEr sIZE. HOwever, in thiS CASe, tHere iS a pROblem iN thaT because an operatiON is necessary to SwitCH The ModE And sO aRrangements of oPerAtIONs increaSe, Operability Is worsenEd. tHe preSent inVentioN relateS GEnERally tO equIpmEnt utilizEd aNd OPeratioNs PeRFormed In coNjUnctioN with sUBterRANean wells and, in emBodimENTs
 screen he or she wishes t o performan en lar gem en t or  red uction on with thepinch operation. Also,  it i sp ossi b le  to c hange a sc a l ing  f ac tor  o f  t he sc ree n in re al-time in  ac co rdance witha  m ovement am oun t of the mov eme nt ofth e f i ngers  wh en th e pinc h  opera tion is p er f ormed. For thi s re ason , there is also a n  a d vantage in tha t theus e rc a n q uic kly set hi sor he r  desire d  s c a l ing factor, witho ut switchin g  to  a spe ci als etting  scre en for  setting th e di splay sca ling f a ctor.
I n  Japane se Pat ent  La id-O p en  N o.H0 4 -22 2 06 3,t hou gh not t he  p inchoper a t i o n, a  us er d esign ating in orde r t wo p o int s and  an e nlar ge mentor red uctio nbeing performed  ona rectang leim age  s imila r  to arec tan gle tha t passe s  th ro u g h  t he two points is d es c r ib ed as amethod fo rd esignati ng  aplur a l ity o f po i nt s in a d isplay sc re en andpe rformi ng  an  en large m ent/ reduct ion of t he sc r een.
Normally, with a pincho pe r a ti o n in  wh ich a plura lity of p oint s  a red esign atedon su c h as screen, an enl ar gement  or r eduction of t he whole i m a g e beingdisp l ay e d is performed . Ina case whe r e, due t o the  enlarge ment oper a t ion, the  im age  ca nno t be  displayed on t he s cr een inits  entire ty,  apar t o fthe image  is hidd en .In  t his  case ,  an oper at ion  s uch  as a scroll  beco mesne ce s sar y in or d er t o di sp la y th e i ma ge of  the par t thatwas hidde n.A lso,  i na casewhere display ed  character sonthe sc r e en are s mall and difficult to r e ad, whe n e nlarg emen t of an i mag e is p erf o rmed b y a pi nch o pe rat i o n, be c a us e t he  whole ima g e  is  enla rg ed,there a re problems such a s  th e essential c har acte r pa rtp ro t rud in g  fr o m  the screen. Fo r this rea so n ,in a casew her edisplay ed char acter s  on the  screen a re smallan d di f f icu lt to read , thereis a desi r e toe nl argeonl y thech ara ctersize a n d n ot th e whol eimage.  Howe ve r, becau se normally an enlargem ent or  redu cti on of the  ch a rac ter sizeis p erformed f rom  asepar ate setti ng s c re en, an in tuit i ve and im m ed iat e op eration, su c h asthe e nla r gement  orreduction of thei mage with a pi ncho p era tio n  can no t be performed  wi th a n operat io n of enlarg ement or  r e ducti on ofthe ch aracter s iz e  using  the  se tting scr een .I n thisca se ,  a met hodca n be c onside r ed i n which a target o f the e nlarg e men t orre duction dueto the pin ch operatio n is s witc hed i n accor da nce wi thamode, fore xample, b etwee n being  m adetobe the  who l e  imag e an dbei ng made t o be th ec har acte r siz e.  How ever, int his case , t h ere isapro b l em int ha t because an  op erati o n  is necess a ry t o  s w itchthe mo de and  so arr a nge me nts ofope r a tions inc rease, op e rab il ityis worse ne d. T he  pr es ent invention r elates g enerally t o equi pme n t ut i lizedan d operations  perf or m ed in c o n jun ction w i thsub ter rane anwell s  and, in embodiments
 screen_he or_she wishes to perform_an enlargement_or_reduction on_with_the pinch operation._Also, it is_possible to change a_scaling factor of_the_screen in real-time in accordance with a movement amount of the movement of the_fingers_when the_pinch_operation_is performed. For this reason,_there is also an advantage_in that_the user can quickly set his or her_desired_scaling factor, without_switching to a special setting screen for setting the_display scaling factor.
In Japanese Patent Laid-Open_No. H04-222063, though_not_the_pinch operation, a user_designating in order two points and_an enlargement or reduction being performed_on a rectangle image similar to a_rectangle that passes through the two_points is described as a_method for_designating a plurality of points_in a display_screen and_performing an enlargement/reduction_of the screen.
Normally, with a pinch_operation in which_a plurality of points are designated_on_such as screen,_an_enlargement_or reduction_of the whole_image_being displayed_is_performed. In a case where, due_to_the enlargement operation, the image cannot be_displayed on the screen_in_its entirety, a part_of the image is hidden._In this case, an operation such_as a_scroll becomes_necessary in order to display the image of the part that_was hidden.
Also, in a case where_displayed characters on the_screen are_small_and difficult to_read,_when enlargement_of an image is performed by a_pinch operation,_because the whole image is enlarged,_there are problems such_as_the essential character part protruding from_the screen. For this reason, in_a case where displayed characters_on_the_screen are small and difficult_to read, there is a desire_to enlarge only_the character size and not the whole_image._However, because normally an enlargement or_reduction_of the character size is performed_from_a_separate setting screen, an intuitive_and immediate operation, such as the_enlargement or reduction of the image with a pinch_operation cannot be_performed with an operation of_enlargement_or_reduction of the character size using the setting screen. In_this case,_a method can_be considered in which a target of the enlargement or_reduction due to the pinch operation is_switched in accordance with a mode, for example, between being made_to be the whole image and being made_to be the character size. However, in_this case, there is_a_problem in that because an operation is_necessary_to_switch_the mode and_so arrangements of_operations increase, operability_is worsened._The present invention_relates generally_to equipment utilized_and_operations performed in conjunction with subterranean wells and, in embodiments