2020年4月28日
qpainter 坐标系统
摘要： Coordinate System The default coordinate system of a paint device has its origin at the top-left corner. The x values increase to the right and the y values increase downwards. 阅读全文
posted @ 2020-04-28 14:37 katago 阅读(299) 评论(0) 推荐(0)