首页 > 代码库 > javascript控制图片等比例缩放

javascript控制图片等比例缩放

<SCRIPT language="JavaScript">function DrawImage(ImgD,FitWidth,FitHeight){      var image=new Image();      image.src=ImgD.src;      if(image.width>0 && image.height>0){          if(image.width/image.height>= FitWidth/FitHeight){              if(image.width>FitWidth){                  ImgD.width=FitWidth;                  ImgD.height=(image.height*FitWidth)/image.width;              }              else{                  ImgD.width=image.width;                  ImgD.height=image.height;              }          }          else{              if(image.height>FitHeight){                  ImgD.height=FitHeight;                  ImgD.width=(image.width*FitHeight)/image.height;              }              else{                  ImgD.width=image.width;                  ImgD.height=image.height;              }          }      }  }  </script>

 

javascript控制图片等比例缩放