fibonacci spiral art illustrator 黃金螺線 黃金分割線 黃金比例 黃金矩形 黃金三角形

 Interior and exterior design. Forged items. The fence is

metal. Artistic forging  Gate Forged Metal Grill Artistic Forging

ratio geometric concept. Fibonacci spiral Golden ratio.Geometric shapes Scalable vector illustration
 
Classic Black Decorative Metal Scroll Motif Wall Hanging Serafina Metal Scroll Wall Art Rectangular

Stratton  Decor Traditional Scroll  Sculpture

Яндекс.Картинки: поиск изображений в интернете, поиск по изображению

Scroll Bending Machine - Ellsen Scroll Machines

Practical Geometry for Builders and Architects Metal Bender

 

https://en.wikipedia.org/wiki/Golden_spiral 

fibonacci spiral art illustrator 

黃金螺線

黃金分割線 

黃金比例 

黃金矩形

黃金三角形