摘要: 1、使用类QgsMapCanvas创建画布 QgsMapCanvas * canvas = new QgsMapCanvas; canvas->setCanvasColor(Qt::white);//设置画布颜色 canvas->enableAntiAliasing(true);//启用抗锯齿 ca 阅读全文
posted @ 2020-09-16 16:22 丶丿漫步 阅读(4457) 评论(0) 推荐(1) 编辑