Results 11 to 20 of about 760,415 (358)

Modeling 3D euclidean geometry [PDF]

open access: yesIEEE Computer Graphics and Applications, 2003
This article compares five models of 3D Euclidean geometry-not theoretically, but by demonstrating how to implement a simple recursive ray tracer in each of them. It's meant as a tangible case study of the profitability of choosing an appropriate model, discussing the trade-offs between elegance and performance for this particular application.
Fontijne, D.H.F., Dorst, L.
openaire   +3 more sources

Three Dimensional Software Modelling [PDF]

open access: yes, 1998
Traditionally, diagrams used in software systems modelling have been two dimensional (2D). This is probably because graphical notations, such as those used in object-oriented and structured systems modelling, draw upon the topological graph metaphor ...
Gill, J.Y., Kent, Stuart
core   +1 more source

Mapping the Bathymetry of Melt Ponds on Arctic Sea Ice Using Hyperspectral Imagery

open access: yesRemote Sensing, 2020
Hyperspectral remote-sensing instruments on unmanned aerial vehicles (UAVs), aircraft and satellites offer new opportunities for sea ice observations.
Marcel König   +2 more
doaj   +1 more source

Constraint-based bare-hand immersive 3D modelling

open access: yesi-com, 2023
Three-dimensional user interfaces that are controlled by the user’s bare hands are mostly based on purely gesture-based interaction techniques. However, these interfaces are often slow and error prone.
Jung Thomas   +3 more
doaj   +1 more source

Meso-scale modelling of 3D woven composite T-joints with weave variations [PDF]

open access: yes, 2019
A meso-scale modelling framework is proposed to simulate the 3D woven fibre architectures and the mechanical performance of the composite T-joints, subjected to quasi-static tensile pull-off loading. The proposed method starts with building the realistic
Long, Andrew, Yan, Shibo, Zeng, Xuesen
core   +3 more sources

PROCEDURAL 3D MODELLING FOR TRADITIONAL SETTLEMENTS. THE CASE STUDY OF CENTRAL ZAGORI [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Over the last decades 3D modelling has been a fast growing field in Geographic Information Science, extensively applied in various domains including reconstruction and visualization of cultural heritage, especially monuments and traditional settlements ...
D. Kitsakis   +3 more
doaj   +1 more source

The role of virtual reality in built environment education [PDF]

open access: yes, 2008
This study builds upon previous research on the integration of Virtual Reality (VR) within the built environment curriculum and aims to investigate the role of VR and three-dimensional (3D) computer modelling on learning and teaching in a school of the ...
Alvarado R. G.   +6 more
core   +2 more sources

3D modeling with silhouettes

open access: yesACM Transactions on Graphics, 2010
We present a new sketch-based modeling approach in which models are interactively designed by drawing their 2D silhouettes from different views. The core idea of our paper is to limit the input to 2D silhouettes, removing the need to explicitly create or position 3D elements. Arbitrarily complex models can be constructed by assembling them out of parts
Rivers, Alec Rothmyer   +2 more
openaire   +3 more sources

Methods of Spline Functions in Solving Problems of Telecommunication and Information Technologies

open access: yesProceedings of the International Conference on Applied Innovations in IT, 2023
The solution to problems of telecommunications and information technologies using spline approximation and spline extrapolation based on real and complex spline functions is considered.
Irina Strelkovskaya   +2 more
doaj   +1 more source

Towards building information modelling for existing structures [PDF]

open access: yes, 2008
The transformation of cities from the industrial age (unsustainable) to the knowledge age (sustainable) is essentially a ‘whole life cycle’ process consisting of; planning, development, operation, reuse and renewal.
Arayici, Y
core   +2 more sources

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