|Table of Contents|

Parameter acquisition of OpenFlight 3D highway model(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2009年02期
Page:
80-83
Research Field:
Publishing date:
2009-02-20

Info

Title:
Parameter acquisition of OpenFlight 3D highway model
Author(s):
CHEN Tao; WEI Lang; YUAN Wang-fang
Key Laboratory for Automotive Transportation Safety Technology of Ministry of Communications,Chang’an University,Xi’an 710064,Shaanxi,China
Keywords:
traffic engineering;  3D highway model;  OpenFlight API;  traversal
PACS:
U491.25
DOI:
-
Abstract:
In order to obtain the road horizontal curve, profile and cross section parameters of 3D highway model in drivervehicleroad virtual simulation, the multilevel hierarchy data structure of OpenFlight highway model is analyzed, and the computational model based on depthfirst search and breadthfirst search is built. Horizontal curve radius, longitudinal gradient, superelevation, the length of transition curve and the coordinates of entry, alignment and exit point in 3D highway model are obtained by using OpenFlight API, the program is developed based on Visual C++6.0, and it is applied to the operation safety virtual simulation of Baoshan—Longling freeway in Yunan province. The application result shows that this method can improve the modeling efficiency, and the average frame rate of road sections is increased 1.3 f/s. 5 figs, 8 refs.

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Memo

Memo:
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Last Update: 2009-02-20