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spherical geometry

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Model Perspective
Model Perspective
May 19, 2024 · Fundamentals

Can a Square Exist on Curved Surfaces? Exploring Geometry Beyond the Plane

This article examines the definition of a square, explains why in Euclidean plane a square must have four equal sides and right angles, and then explores how curvature on spherical and hyperbolic surfaces allows shapes with equal edges and right angles to have three, two, or more sides, illustrating concepts of curvature and geodesics.

curvaturegeometryhyperbolic geometry
0 likes · 7 min read
Can a Square Exist on Curved Surfaces? Exploring Geometry Beyond the Plane
Python Programming Learning Circle
Python Programming Learning Circle
Jan 27, 2022 · Fundamentals

Creating a Rotating Earth GIF with Python, Pillow, NumPy, and imageio

This tutorial demonstrates how to generate a rotating Earth animation by mapping a latitude‑longitude texture onto a circular canvas using Python's Pillow, NumPy, and imageio libraries, detailing the steps of point selection, spherical coordinate conversion, pixel mapping, and GIF assembly.

GIFNumPyPython
0 likes · 7 min read
Creating a Rotating Earth GIF with Python, Pillow, NumPy, and imageio