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Index Traébtuum ~
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T R A C T A T U S XX J.
PERSP E C T IV A·
SEU DE RADIO DIRECTO·
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L 'IBE R J.
Fundamema Perfpeél:iva::
PRoP. l. APpttremia li11e.t objelliv.t <1.g11i¡/ij1a11-
tis tabell<t , ejl eidem li11e.t pa-
ralleltt. 494'
z. si li11e<1. objeéliv<t per omlum d11cat11r para/lela,
tabe/Jam attmgem in aliq110 pm1élo illi11s line.t
objec1iv<t, apparentia produéla per illud p1111El11111
tranfit. ibid.
3. si li11t11 in para/lela i11cide11.s t7a11fverfis lineu, ab
11110 punélo 1111i11.s parallelamm ad divifiones alte–
rit1s d11élis, dividat11r ; fimilimodo d1videtur, fi
1 du<t ali<t. paral/e/<t per ejus exrremitates duél<t,
eaftlem habea11t divifio11es, ibid.
4 . Si dentur d11<1. liize.t objeéliv<t, tabe!l.t <1.guidifla11-
..Jes, & i11rer faparallel<t , habeb11nr apparenti:U
inrerfa para/Je/&, a11t e.mdem. 495
5. Si li11e11; objec1iva f11erit parallela alteri line<t in
ta/;ella d11él<t, ejllfapparentia , eidem para/lela
erit. ibid.
6. Li11e<1. verticales objeEliv<t babent appare11titU in
tabella verticales. ibid.
7. Linea objeEliva rabell.t <1.q11idifla11s , & ad verrica–
/em inclinara , habet appare11tiam fimiliter ad
• verticalem i11cli11ata111. ibid.
8. !J!!."-c11mq11e fig11r,p, objefliv<t, dejcripu. in pfafiu ta·
bell.t para/le/is, habe11t appare11ti11&fibi fimiles.
496 '
9. Linea objelliva in plam , flca11re rabe/Jam dufla,
& comm11ni feélioni para/lela, apparentiam ha–
ber eidem con11111mi fec1ioniparallelam. ibid.
10, Li11e<1. objeéliv.t parallel<t inrer fe, & non paraUek
ta/;el/<t , habent apparemi& in eoden1 tabel/<t
p11nélo concurrentes. ibid.
u . .Apparentia line<t i11fi11it<t finita efl, & apparentia
line<t finit<t, infinita ejl. ibid.
IZ, .Apparemia c11j11ftúmq11e li11e4 objeéliv4 ad tabel–
lam reél<t, tranfit per p1111él11m virus, feu per
pt1nél11m principale. 497
13 .';-.Apparenria line<t objefliv4 horiz,ontalu, c1)m /i11ea
rerr.t, a11t afia para/Jeta angulumfemireél11m
~°(;,:~~ehendemis, per p1111tl11m diflanti4 tra11fit.
14. Line4 objefliv<t horiz,ontales, interfa parallel.t &
non fttralle/4 rabel/,,, , habent apparentitU co11-
:~;;~11tes in eodem p~mélo line<t hori~ntali<.
15. Line4 objefliv<t non 4q11idiflantes tabe/14 & pa–
rallel.t ínter fa, d11é/4 in plano ad taóe/Jam
reélo , babent ttppttrentiM Concurrentes in a/19110
p11nélo lme.t d11él<t per prlnélum principale , &
para//el.t communi feélioni pla11i , & tabel/4,
498 '
16. Circa 011111e pla1111111 objeéliv11ii1 ad tabe/Jam re–
élum , eodem modo opera11d11111 ejl ac e/rea ho·
ri~11rale. 498
17. Li11e<1. objefliv<t perpendicrdariter in/ifle11tes plano
objeflivo ad tahel/am reélo, habebrmt apparenttM
perpendiculares ad comm11nem ft8ronem pla11í
& tabe/J,p,. ibid.
- 18. Dtt<t fin~"' objelliv.t, 11011 <1.q11idiflantes tahe/14&
parttl!e/4 ínter fe, in plano ad rabe/Jam me/mato
dti!f.t , ha/;em appar1111t1a.! co11ve111el1tes 111 aliquo
punélo communis .feélio11i< taóe/14, & plam per
oculum duéli , q11odfit plano li11eamm paraUe–
lmn. • ibid.
19. !mea ob;efliva perpendicu/,iriter infiflms pl.i110
ad t,ibel!.im me/mato , haber apparem1,1111 con·
c11r-re111en1; don ptrpc11drc11/a11 du{/a a pttnElo
pri11cipah ad conmumem tabcll.t, & pla111 mc/i–
nari feE11onem, & rn p1mélum tllim 111 quod c,1d1t
linea per oc11/11111 duéla,& perpendicularis ad
p'f!m11n parallelum. 499
zo• .Ad divtfionem apparenti<t,linea , qu"-pro objef1111a
fi1bj/it11ir11r , eandem habeat bab1t11dinem ad
ipfa111, q11am objeEliva. ibid.
:i.1. Line" duéla ad p1111E111m dij/ami,,_ abflindit in
radio , apparmtiam linu <1.qttalts fegmento !me.e
terr,p,, inrercopto mter ipfam & radi11m. 500
zz. Divifiones 11m11sradit , per lineM paralle/11& line.t
terr4 in a/íos transfamnrur. 501
23. Lú1e<1. d11éf4 adp1111éla diflanti.t. , fi fe íntrrfecenr
angulum perj)eélive rec111m co111prehe11drmr ' &
/mea para/le/a lme.t terr4 efldiago11alir quadraú,
etlj1" laté'ta ad pttnéla diflami.t. d11c1tt jimt. ibid.
:i.4. Apparentid. lmeamm 11ori~11tali11111 paraUe/amm
linu terr.t,& m eodem plano exijlmti11111,'a rad11s
div1d1111t11r mappttf'entitU lineamm"q1111fi11m.ibid.
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P ERS P ECT IV A:.
L I B E R II.
Ichnographia prjoeél:a.
PRoP.l. o uadratt1111 direéle op.fofitum defcri-
bere. 50:1.
:i.. .Q!!_adratlllll ex a11g11/o vifam dejrribere. 503
3. Q!!_adrttflllll dtret/C viji1111delineare , & dividere,
& fabdividere in alía qttadrara in/cripta
ex a11g11/o. ibid.
4. Circu/11111 deflribere. ibid.
5. Tria11g11!11111 diflans alinea terr,p, i11 tabella per~
J)eélive delineare. 504
6. Pe11ragoni apparentiam i11ve11ire, 505
7. Eptago1111m delineare. . ibid.
8. nuplicem circulum co11cmtric11111 dejcribere. 506
9. Pavimentum q11adratorum obliqttf pojiromm
507
10. Pavimm