The demands in computational engineering for high efficiency and less human efforts have spurred the development of fully automated numerical methods. The scaled boundary finite element method (SBFEM), a semi-analytical approach, has evolved into a versatile computational framework capable of addressing challenges in computational engineering analysis. This paper focuses on presenting the integration of the SBFEM with a fully automated octree mesh generation technique to enabling a seamless workflow from various geometric modeling formats (e.g., digital images, point clouds, and CAD data) to computational analysis. This paper summarizes the theoretical advancements and computational innovations of the SBFEM framework as a general-purpose tool for modern computational engineering.