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OpenCRG is a complete open source project including a tool-suite for the creation, modification and evaluation of road surfaces, and an open file format specification CRG (curved regular grid). Its objective is to standardize a detailed road surface description and it may be used for applications like tire-, vibration- or driving-simulation. The initial release of OpenCRG was a beta version 0.3 in early 2009; as of August 2015, the current stable release of the OpenCRG C-API and MATLAB tool suite is version 1.0.6. ==Overview== OpenCRG is a standardized efficient 3D road data representation defined in base plane by its direction (heading, yaw angle). It is optionally complemented by hilliness (slope, inclination, grade, pitch angle) and cross slope (super-elevation, banking, cant, camber, roll angle). Compact storage and sufficient accuracy, even for long tracks are the objectives for the open file format specification CRG. A C-API as well as a MATLAB API are provided for the creation, evaluation or modification of OpenCRG files. Both APIs include basic operations like transforming between intrinsic to global coordinates. The MATLAB tool suite provides powerful modification or creation tools and allows to visualize the 3D road data representation. OpenCRG was initiated by Daimler and is currently driven by VIRES Simulationstechnologie GmbH, the research group AK 6.1.3 'Tire Models for Vehicle Dynamics, Ride Comfort and Uneven Roads' and the OpenCRG community. The associated website maintained by VIRES GmbH is the main portal for information about OpenCRG including latest news concerning the data format, free and commercial tool-sets, test data etc.. With OpenCRG real road surfaces (e.g. by measurement) have also become available to "classic" simulation applications using a macroscopic description of road networks. The gap between the logical road description and the microscopic description of road surfaces (i.e. OpenCRG) is closed by the open file format OpenDRIVE. An implementation of OpenCRG into the OpenDRIVE file format specification has already been established in January 2008.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「OpenCRG」の詳細全文を読む スポンサード リンク
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