3D Cadastres Best Practices, Chapter 5: Visualization and New Opportunities

This paper proposes a discussion on opportunities offered by 3D visualization to improve the understanding and the analysis of cadastre data. It first introduce the rationale of having 3D visualization functionalities in the context of cadastre applications. Second the publication outline some basic concepts in 3D visualization. This section specially addresses the visualization pipeline as a driven classification schema to understand the steps leading to 3D visualization. In this section is also presented a brief review of current 3D standards and technologies. Next is proposed a summary of progress made in the last years in 3D cadastral visualization. For instance, user’s requirement, data and semiotics, and platforms are highlighted as main actions performed in the development of 3D cadastre visualization. This review could be perceived as an attempt to structure and emphasise the best practices in the domain of 3D cadastre visualization and as an inventory of issues that still need to be tackled. Finally, by providing a review on advances and trends in 3D visualization, the paper initiates a discussion and a critical analysis on the benefit of applying these new developments to cadastre domain. This final section discusses about enhancing 3D techniques as dynamic transparency and cutaway, 3D generalization, 3D visibility model, 3D annotation, 3D data and web platform, augmented reality, immersive virtual environment, 3D gaming, interaction techniques and time

Visualisasi Batas Fisik dan Yuridis Hak Strata Title Menggunakan Building Information Modelling (Studi Kasus: Rusunawa Buring II Malang)

Kebutuhan akan implementasi kadaster tiga dimensi (3D) semakin mendesak. Pendekatan yang saat ini terfokus pada bidang tanah 2D sudah saatnya dikembangkan kearah pendekatan 3D yang mengakomodasi aspek ruang. Salah satu penerapan konsep strata title adalah sertifikat hak milik satuan rumah susun (SHMSRS). Penerapan sistem 2D pada hak strata title menjadi kurang tepat karena tidak dapat menggambarkan keadaan sebenarnya. Kebutuhan rumah susun di Kota Malang hingga Tahun 2032 diasumsikan sekitar 30% dari jumlah kebutuhan rumah secara keseluruhan. Sebesar 17% dari kebutuhan rumah tambahan tipe kecil yang dialokasikan menjadi rumah susun, dengan jenis rumah susun umum atau khusus. Oleh karena itu diperlukan pemahaman yang komprehensif tentang batas fisik dan yuridis pada sistem kepemilikan dan penguasaan hak atas properti satuan rumah susun (sarusun) bagi stake holder yang terlibat didalamnya. Stake holder yang dimaksud antara lain pemerintah, subyek hak atas sarusun, notaris, surveyor dan pengelola sarusun. Visualisasi secara 3D akan memberikan gambaran kepastian batas yang jelas dan meminimalkan munculnya permasalahan dalam pemanfaatan ruang secara keseluruhan. BIM digunakan untuk membuat model geometri bangunan gedung secara lebih detail dalam bentuk 3D. BIM memiliki keunggulan pada informasi geometris dan semantik yang beragam. Penggunaan BIM dapat dimanfaatkan untuk mengintegrasikan batas yuridis dan fisik tingkat bangunan secara detail. Melalui penelitian ini akan dilakukan visualisasi batas yuridis dan fisik dari bangunan secara 3D sehingga akan merepresentasikan perspektif real dari fitur bangunan yang akan memudahkan pemahaman interpretasi bahasa hukum dalam UU No. 20 Tahun 2011 tentang Rumah Susun

3D Cadastre visualization and dissemination: Most recent progresses and future directions

The 3D Cadastre has been investigated from many viewpoints (including legal, organizational and technical). However, to date little research has focused specifically on visualizationrelated aspects despite the value-added of the third dimension. The paper first proposes an overview of progress made in the last five years in 3D cadastral visualization. The authors then summarize discussions at the 2014 3D Cadastre workshop regarding future research and development on the topic. This synthesis is complemented by a broad review of the most recent advances in 3D visualization beyond the 3D cadastral domain, with the goal of providing a number of important directions for further work, allowing researchers, developers and users to consolidate their respective activities, and encouraging collaboration

The Extension of IFC For Supporting 3D Cadastre LADM Geometry

The growth of densely populated urban areas has caused traditional cadastral registration systems to face many difficulties in representing complex and multilevel property situations on 2D maps. These challenges, combined with the rapid development of 3D technologies, have forced the research and progress of 3D cadastre systems. The aim of this study is to investigate how a Building Information Model (BIM) can be used as a data source for the Land Administration Domain Model (LADM) based 3D cadastre system, and how that process can be improved. The Industry Foundation Classes (IFC) format and the LADM-based model were selected because both are international open standards that have a significant impact in their own domain. The data sample for the 3D cadastre system was extracted from a BIM model. The paper proposes an IFC format extension which makes it possible to define 3D geometry according to the LADM standard. In order to demonstrate this extension, the West 65 residential and business complex, Belgrade, was selected as a case study. The IFC format extension presented here is a step towards data harmonization between BIM in the IFC format and 3D cadastre systems; it should provide more suitable data in the current IFC schema and enable easy data flow between BIM projects and 3D cadastral data