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上传时间: 2014-07-09
详细说明： This article presents a CStatic derived class for displaying numbers or text like a LED Display. This control does not use bitmaps. Everything is drawn with lines and Bezier curves. First I made some classes to draw a character, which consists of segments that can be any closed shape, by only giving some points. The points can be connected by lines or by Bezier curves to make nice smoothened characters. The theory of fitting Bezier curves can be found in bezdist.pdf, created by Jim Fitzsimmons, in my demo project cabinet. The CD igiStatic resizes itself automatically, which can be experienced with the demo app, wherefore I used the resizing dialog code from Hans Bühler. To design the characters I looked around for different styles. The best inspiration came out of my car. I used characters from the date/time/temperature display and from my RDS-radio. 14- and 7-segment displays in straight and smooth style are supported and one common character for displaying a decimal point or a colon. I changed the designs a lot to get aesthetically best results, but I didn't go crazy by changing all the points every time because I do some nifty mirroring for most of the segments. For example I only specified 5 segments for the 14 segment display. The demo application shows all possibilities of this control. ...展开收缩
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