Stručni rad
Centres of the Meridian Curvature
Miljenko Lapaine
orcid.org/0000-0002-9463-2329
; Zavod za kartografiju i fotogrametriju, Geodetski fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Martina Triplat Horvat
orcid.org/0000-0002-8304-7474
; Zavod za kartografiju i fotogrametriju, Geodetski fakultet, Sveučilište u Zagrebu, Zagreb, Hrvatska
Sažetak
This paper presents a derivation for geometric locus of meridian curvature centres, on the condition that a meridian is an ellipse
arc. It is a star-shaped curve which mathematicians refer to as an astroid. First, the equation of an ellipse parameterized by latitude is derived, after which the equation of an astroid is derived in parameter and implicit form, from which its semi-axes can be read.
Ključne riječi
rotational ellipsoid; meridian; meridian curvature; astroid
Hrčak ID:
125473
URI
Datum izdavanja:
26.6.2014.
Posjeta: 2.543 *