Exploring the Effect of Shape Parameters on Font Design Using Rational Quadratic Trigonometric Curves

Noor Khairiah Razali; Nur Ain Fitrah Azhari; Siti Musliha Nor-Al-Din; NURSYAZNI MOHAMAD SUKRI

doi:10.24191/jcrinn.v10i2.541

Exploring the Effect of Shape Parameters on Font Design Using Rational Quadratic Trigonometric Curves

Authors

Noor Khairiah Razali Faculty of Computer Science and Mathematics, Universiti Teknologi MARA Cawangan Terengganu, Kampus Kuala Terengganu, Malaysia
Nur Ain Fitrah Azhari Faculty Sciences Computer and Mathematics, Universiti Teknologi MARA Cawangan Terengganu Kampus Kuala Terengganu
Siti Musliha Nor-Al-Din Faculty of Computer Science and Mathematics, Universiti Teknologi MARA Cawangan Terengganu, Kampus Kuala Terengganu, Malaysia
Nursyazni Mohamad Sukri Faculty of Computer Science and Mathematics, Universiti Teknologi MARA Cawangan Terengganu, Kampus Kuala Terengganu, Malaysia

DOI:

https://doi.org/10.24191/jcrinn.v10i2.541

Keywords:

Rational Quadratic Trigonometric, Shape Parameter, Font design, Interactive tool

Abstract

This study investigates the impact of shape parameters on font contour design using rational quadratic trigonometric Bézier (RQTB) curves. By varying parameters (m, n) and weight (v), the research evaluates contour accuracy through pointwise deviation analysis and computational efficiency. The configuration (m = 0.5, n = -0.5, v = 1) achieved the lowest RMSE and CPU time, indicating optimal performance. An interactive tool was also developed to support real-time parameter adjustment. The results demonstrate that carefully tuned shape parameters enhance both visual fidelity and efficiency, making RQTB curves practical for typography and related design applications.

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