Earticle

South Korea has about 5,500 unified control points now. In last 10 years, after years of observations, obtained about 20,000 GNSS observation files, tried to compare these new coordinates values with the old values of unified control points to analysis the changes in the earth’s crust. But because of the changes of the GNSS receivers, multi bands and types of it was used, and the mistakes from the observers, they can’t be processed in GAMIT/GLOBK, the most used GNSS data processing software. Coding several python scripts to revise these mass datas instead of manual sequential corrections.

This study proposes a solution to the challenges encountered in Maya's HumanIK system when creating animations that require a character’s Effector to interact with their own body parts, such as the waist or knees. In conventional workflows, using parentConstraint often fails when a character’s hand or foot must be connected to their own body, due to conflicts with the character rig structure. To address this issue, the proposed method utilizes a Rivet node to track the motion of a specific body part. The positional data from the Rivet is transferred to a separate locator, which is then used to recalculate and reassign the position of the Effector, thereby enabling stable control over the hand’s attachment or constraint. To enhance workflow efficiency, a custom automation script was developed, and its stability was verified through testing. The proposed method shows potential for enabling more flexible and robust representations of interactions between self-body contact.

본 논문에서는 3D 애니메이션 도구인 마야를 이용하여 태양계를 모델링하고 각 행성의 움직임과 물리적인 속성들을 정밀하고 객관적으로 구현하여 태양계의 구조를 시각적으로 쉽게 이해할 수 있도록 시뮬레이터를 구현하였다. 메뉴를 이용한 마야의 모델링으로는 정밀한 물리적 속성 값을 표현하기 어려우므로 파이선 스크립트를 이용하여 각 행성의 특성을 표현하였다. 제안하는 시뮬레이터는 가상현실 분야나 학생들의 교육 자료로서 사용 가능하도록 모델링과 렌더링을 실사와 동일하게 구현하였다. 또한 마야 애니메이션에서의 메뉴를 이용한 모델링과 스크립트 언어인 파이선을 활용하여 누구라도 쉽게 실사 영상을 볼 수 있도록 하였다.

In this paper, we introduce a simulation tool for solar system using 3D animation tool MAYA. It accurately models solar system's astronomical features, such as each planet's orbital period, orbital speed, relative size, and texture, etc. This simulator visualize the solar system in 3D, which can be used to easily understands the system's positioning and astronomical movements. With a conventional Maya modeling process using menus and UI windows, it is difficult to assign correct physical attributes of planets. We use Python script to set up each planet's astronomical parameters. The proposed simulator is rendered as real as possible to be used for virtual reality and educational purpose.