Zubler, Leonhard, Fabrica et vsvs instrvmenti chorographici : qvo mira facilitate describuntur regiones & singulae partes earum, veluti Montes, Vrbes, Castella, Pagi, Propugnacula, & simila

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        <div xml:id="echoid-div24" type="section" level="1" n="17">
          <pb o="28" file="0038" n="38" rhead="FABRICA ET VSVS"/>
          <p>
            <s xml:id="echoid-s554" xml:space="preserve">
              <emph style="sc">ARchistrategvs</emph>
            , obſeſſurus propugna-
              <lb/>
            culum vel oppidum, vult prius caſtra ſua deſcribe-
              <lb/>
            re, quàm metari, ut cognitâ horum deſcriptione
              <lb/>
            ea communire poſſit foſſis, vallis, præſidiis, & </s>
            <s xml:id="echoid-s555" xml:space="preserve">reliquis re-
              <lb/>
            bus neceſſariis, contra hoſtis viciniim petus. </s>
            <s xml:id="echoid-s556" xml:space="preserve">Sic igitur ope-
              <lb/>
            retur: </s>
            <s xml:id="echoid-s557" xml:space="preserve">Papyrum cerâ, glutine, vel alio modo infigat Inſtru-
              <lb/>
            menti quadraturæ: </s>
            <s xml:id="echoid-s558" xml:space="preserve">Inſtrumentum deinde ponat in plano
              <lb/>
            perpendiculariter: </s>
            <s xml:id="echoid-s559" xml:space="preserve">admoveat tunc oculo ſuo Inſtrumenti
              <lb/>
            angulum B prope a in Caſtris datis, dirigatq́ue viſum per
              <lb/>
            dioptram verſus b in campo. </s>
            <s xml:id="echoid-s560" xml:space="preserve">Volvat inde Orbem tantiſ-
              <lb/>
            per, dum lingula magnetis lineæ meridionali incumbit,
              <lb/>
            Aſſere immoto ſem per manente. </s>
            <s xml:id="echoid-s561" xml:space="preserve">Mota porrò Regulâ de-
              <lb/>
            orſum in locum quempiam papyri, quadraturæ incumben
              <lb/>
            tis, & </s>
            <s xml:id="echoid-s562" xml:space="preserve">lineâ ductâ per quadraturam, metiatur certo inſtru-
              <lb/>
            mento menſorio, quot perticas vel pedes habeat ab a ad b.
              <lb/>
            </s>
            <s xml:id="echoid-s563" xml:space="preserve">eritq́ue voti ſui compos. </s>
            <s xml:id="echoid-s564" xml:space="preserve">Quòd ſi loci quæſiti diſtantia ni-
              <lb/>
            mis magn a eſt, proindeq́ue Caſtrorum deſcriptio horis vel
              <lb/>
            miliaribus definiri debet, accola quiſpiam de diſtantia ro-
              <lb/>
            gari poteſt: </s>
            <s xml:id="echoid-s565" xml:space="preserve">eritq́ue res exploratu facilis per perticarum & </s>
            <s xml:id="echoid-s566" xml:space="preserve">
              <lb/>
            pedum menſuram.</s>
            <s xml:id="echoid-s567" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div25" type="section" level="1" n="18">
          <head xml:id="echoid-head20" style="it" xml:space="preserve">Esto tale exemplum.</head>
          <p>
            <s xml:id="echoid-s568" xml:space="preserve">Fingat a diſtare à b ped bus 1000. </s>
            <s xml:id="echoid-s569" xml:space="preserve">Hîc igitur Circinum
              <lb/>
            ſumat, & </s>
            <s xml:id="echoid-s570" xml:space="preserve">ponat eum in Regulâ antea in certas partes divi-
              <lb/>
            sâ: </s>
            <s xml:id="echoid-s571" xml:space="preserve">vel ſi Regula diſplicet, aliam inſtituere poteſt diviſio-
              <lb/>
            nem pro libitu, ut notatum videtur in figura.</s>
            <s xml:id="echoid-s572" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s573" xml:space="preserve">Progrediatur tunc cum Inſtrumento ab a ad b. </s>
            <s xml:id="echoid-s574" xml:space="preserve">quò in
              <lb/>
            prima ſtatione collimatio etiam erat, diſponatq́ue Inſtru-
              <lb/>
            mentum iterum ut antè, verſus e in figurâ, ac Orbem de-
              <lb/>
            nuò volvat in lineam meridionalem. </s>
            <s xml:id="echoid-s575" xml:space="preserve">Volvat inde Regu-
              <lb/>
            lam ſurſum vel deorſum, tantiſper dum puncto directè in-
              <lb/>
            cumbat, perinde ut cum Orbe antè operabatur. </s>
            <s xml:id="echoid-s576" xml:space="preserve">Hinc de
              <lb/>
            puncto iterum lineam producat ſecundùm Regulam, & </s>
            <s xml:id="echoid-s577" xml:space="preserve">
              <lb/>
            diſtantiam denuo exploret, ut dictum, reperietq́ue pedes
              <lb/>
            2000. </s>
            <s xml:id="echoid-s578" xml:space="preserve">Poſito porrò Circino in ſcalâ menſoriâ, & </s>
            <s xml:id="echoid-s579" xml:space="preserve"/>
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