Fig. 9. tion of the moulding from the vertical line a e,which it is required to touch; and first, if theprojection a bis equal to the height of thecurve, make a c (fig. 9) equal to ah ; and fromthe points h and c as centres, with « 6 or a c asa radius, describe the arcs intersecting at d;from d,… … Fig. 10. be; this completes the contour of the congeIf the conge contains less than a quarter of acircle, as in fig. 10, let 6 e be the tangent to thecurve at the point b; on the vertical af set off 210 THE DECORATOR S ASSISTANT. the distance c d equal to c b ; draw b e at rightangles to b c, and d…
Design · Decoration and ornament · Art
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![An illustration from Perspectiva; hierinnen auffs kürtzte beschrieben, mit Exempeln eröffnet vnd an Tag gegeben wird, ein newer besonder kurtzer, doch gerechter vnnd sehr leichter Weg, wie allerley Ding, es seyen Corpora, Gebew, oder was möglich zuerdencken vnd in Grund zulegen ist, verruckt oder vnuerruckt, frener in die Perspectyf gebracht werden mag, on einige vergebliche Linie, riss vñ Puncten, [et]c. dergleichen Weg bisshero noch nit bekant gewesen (1571)](https://img.insideoutlibrary.com/img/200/ia-perspectivahieri00lenc-51-26.webp)
