基于GDI+的船用虚拟仪表均匀刻度线的绘制

Drawing Uniform Scale Line of Marine Virtual Instrument Based on GDI

鉴于船用虚拟仪表在轮机模拟器及船舶机电设备综合监控系统中的重要性,针对传统方法对虚拟仪表刻度线开发的不足,本文基于平面内点关于直线对称的理论提出了一种关于虚拟仪表均匀刻度线新的绘制方法,给出了该方法的详细设计方案以及严密的数学推理,并以VS.net为开发环境结合GDI+技术,采用此方法编写了虚拟船用电流表,以证明该方法的可行性。结果证明,该方法正确有效,能克服传统方法的不足之处,同时还能减少开发人员的工作量,对其他仿真系统仪表控件的开发有良好的借鉴作用。

In view of the importance of marine virtual instrument in marine engine room simulator and marine electromechanical equipment integrated monitoring system, aiming at the deficiency of traditional methods in the development of virtual instrument scale-line, in this paper, a new drawing method of uniform scale line of virtual instrument is proposed based on the theory of linear symmetry of in-plane points, with detailed design scheme of the method and strict mathematical reasoning. Taking VS. net as the development environment, using GDI + technology, a virtual marine ammeter is compiled by using this method, which proves the feasibility and correctness of this method. As a result, the shortcomings of traditional methods can be overcome and the workload of developers reduced. In addition, it has a good reference for the development of instrument control in other simulation systems.