Stylobata Ionicus, & ratio vitandi aliam difficultatem in elevationibus.
In elevationibus etiam sectionis opticè potest accidere, ut si visualis LK nimis recta sit, sectio B restringatur. Elongando lineam plani ab L ad M, visualis MN erit inclinatior, & consequenter sectio C erit latior, & distinctior.
Nota, difficultatem hanc sæpe sæpiùs te habiturum in figuris præcipuè, quæ multas lineas habent, ut in figura quadragesimasecunda, ubi pariter rationem vitandi confusionem reddam.
Neque tibi molestiæ sim, quod in hac figura lineam horizontalem infra lineam plani collocaverim, id enim feci, ut illarum diversos effectus videas, utque tu in tuis studiis mutes, & discas.
ELEVENTH FIGURE.
The Ionick Pedestal, and the Way to shun another Difficulty in the Elevations.
In Elevations of the Profile in Perspective, it may sometimes happen, that the Visual LK may be so direct, as to render the Profile B too close and narrow; wherefore prolonging the Ground-line from L to M, make the Visual MN, which being much more oblique, does consequently render the Profile C more broad and distinct.
And observe, that this Difficulty will very often occur; especially in Figures that have many Lines, as the Forty-second Figure has, where I speak also of the manner of avoiding the same.
Nor let it trouble you, that in this Figure I have plac’d the horizontal Line below the Ground-line; which I have done, that you might see their different Effects, and by changing the Disposition of your Designs, improve and learn.