Dictionarium polygraphicum, or, The whole body of arts regularly digested ..: illustrated with fifty-six copper plates . fie 3. PER ,5, Thus much being fuppofed ; if there be a number of columnsor pilafters to be ranged in Perfpedive on each fide of a hall orchurch, they muft of necefTity be all made under the fame an-gle, and all tend towards one common point in the horizon O,%• 3 ; as, for inftance, the eye being placed in A, viewing thefirft object D E ; if, from the points D E, you draw the vifualrays D O, E O, they will make the triangle D O E, which willinclude the columns D E, F G, H I,
Dictionarium polygraphicum, or, The whole body of arts regularly digested ..: illustrated with fifty-six copper plates . fie 3. PER ,5, Thus much being fuppofed ; if there be a number of columnsor pilafters to be ranged in Perfpedive on each fide of a hall orchurch, they muft of necefTity be all made under the fame an-gle, and all tend towards one common point in the horizon O,%• 3 ; as, for inftance, the eye being placed in A, viewing thefirft object D E ; if, from the points D E, you draw the vifualrays D O, E O, they will make the triangle D O E, which willinclude the columns D E, F G, H I, K L, M N, fo as they willall appear equal. What has been faid of the fides, is likewife to be underftoodof the cielings and pavements ; the diminutions of the angles ofremote objeds, placed either above or below, following thefame rule as thofe placed laterally. There is therefore no need of adding any thing farther, unlefsthis, that you take care that there be as many fquares or divi-fions between the remoteft objeds, as between the neareft ;for, in that cafe, though diftant objecls be theclofer, as they arefarther fr
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Keywords: ., book, bookcentury1700, booksubjectarts, booksubjectindustrialarts
