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1、photoshop路径完全精通手册（PS图象处理软件路径完全精通手册）Photoshoppathistotallyproficientinmanual.Txtthetruemeaningofironricebowlisnottoeatalifetimeinaplace,butalifetimetoeateverywhere.Itisapieceofshit,alsohavemetshikelangday.Soyoudon'thavetoworrytoomuchaboutyourselftoday.Keyword:PhotoshoppathcompletemanualDefinitionofpa
2、th:"Path"(PATHS)isaclosedoropencurvesegmentthatismadeupofBeckinsalecurveinPHOTOSHOP.Beckinsaleisakindof"infinitesimilar"basedonPEBstructureparametercurvein1962theFrenchcarmakerRenault,thiscurveisbased,completetheUNISURFdesignasystemofcurvesandsurfaces,andin1972inthecompany'sapplication.Beckinsale'sm
3、ethodcombinesfunctionswithinfinitesetsofrepresentations,allowingdesignerstodrawcurvesoncomputersashandyasconventionalgraphingtools.Ofcourse,youprobablydon'tfeelthatway,becauseyoudon'tusethepath,andthinkit'sbadtocontrol,well,afterreadingthisarticle,Ibelieveyouropinionwillchange.Thediagrambelowshowsas
4、tandardBeckinsalecurveeffect.Wecanseefromthechart:aBeckinsalecurveisdefinedbyfourpoints,ofwhichP0andP3definethestartingpointandendpointofthecurve,alsoknownasnodes,whileP1andP2areusedtoadjustthecurvatureofthecontrolpoint.ThepolygoncomposedoffourpointsP0P1P2P3iscalledthecontrolpolygonoftheBeckinsalecu
5、rve.ByadjustingtheP0andP3nodes,theusercanadjustthestartingpointandtheendpointoftheBeckinsalecurve.ByadjustingthepositionoftheP1P3,thecurvatureofthewholeBeckinsalecurvecanbeflexiblycontrolledtomeettheactualneeds.Thebeginningofgraphicsmayrequireaperiodofpracticetoadapttothebeginning.Here'salittlebitof
6、experience:ingeneral,thecurvatureisadjustedfirst,andit'salmostthesame,andthenthenodeisadjustedtochangethecurveposition.Suchasequencecanreducerepetitiveoperations.Usually,onlybyaBeckinsalecurveisoftennotenoughtoexpressthecomplicatedcurve,inPHOTOSHOP,inordertoconstructcomplexcurve,oftenuseBeckinsalecu
7、rvestocomplete,isasectionofBeckinsalecurveareconnectedtoeachother.Asabove.UsingBeckinsalecurvestitchingisoftenthefollowingsplicingmethods,asshownbelow.A,connectionmodeThewholecurveconsistsofaBeckinsal
