//入口 public static BufferedImage constructHeatWheelView(int pageWidth, int pageHeight, DoubleHolder scaleHolder) throws ValidateException{ BufferedImage bi = new BufferedImage(pageWidth, pageHeight, BufferedImage.TYPE_INT_RGB); Graphics2D g = (Graphi…
最近做项目时有一个需求,广告位图片上传时要预览,并且要等比例缩放和居中.已经保存的广告位图片显示时也要等比例缩放和居中.我使用了下面的代码实现,不过可能有一些小问题. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <title> Re…
C#图片按比例缩放: // 按比例缩放图片 public Image ZoomPicture(Image SourceImage, int TargetWidth, int TargetHeight) { int IntWidth; //新的图片宽 int IntHeight; //新的图片高 try { System.Drawing.Imaging.ImageFormat format = SourceImage.RawFormat; System.Drawing.Bitmap SaveIma…
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Typ…