कामिक आगम: पूर्व भाग (अष्टाविंशति मूल शैव आगमों का प्रथम एवं सर्वोच्च आगम महाकोश)

Wearing the relevant gold ornaments on the five parts of his body, adorning his
head with a fitting diadem and covering his chest and left shoulder with the upper
garment, the priest should go to the place marked for the erection of the gnomon,
being accompanied by the initiated brahman.a's who have been offered due fees
and the s'ilpis and worship Indra and other deities. Having completed these rituals,
the priest should commence the erection of the gnomon.
bhu's"an.opeta pan"ca'n'gah – The priest should adorn himself with five
ornaments - an'guli'ya(ring), kat'aka, keyu'ra, kun.d'ala and yajn"opavi'ta
all made of gold.
शङ्कुप्रमाणया रज्वा शङ्कुव्यासार्ध युक्तया ।
वृत्तं संभ्राम्य तन्मध्ये स्थापयेत्तमिनोदये ।। २९
s'an'kuprama'n.aya' rajva' s'an'kuvya'sa'rdha yuktaya' /
vr'ttam sambhra'mya tanmadhye stha'payettam inodaye // 29
With the cord having its length equal to the length of the gnomon and its
thickness equal to the half of the thickness of the bottom of the gnomon,
the priest should describe a circle on the place selected for the erection
(the length of the cord being the radius of the circle). Exactly at the centre
of the circle he should install the duly worshipped gnomon.
पूर्वापराह्नयोश्शङ्कोश्छाया रेखा गता यथा ।
तद्बिन्दु द्वयगं सूत्रं पूर्वापरदिगिष्यते ।। ३०
pu'rva'para'hn.ayos's'an'kos'cha'ya rekha gata'yatha' /
tadbindu dvayagam su'tram pu'rva'para digis"yate // 30
In the forenoon, the priest should mark a point(bindu) where the shadow of the
gnomon meets the circumference. In the same way, he should mark a point where
the shadow of the gnomon meets the circumference in the afternoon. The line
which connects these two bindus is known as the east-west line.