/// <summary>
/// 重新创建bitmap
/// </summary>
public void CreateNewMap()
{
gic.Dispose();
Pic.Dispose();
Pic = new Bitmap(cells[0].Length * Size + 1, cells.Length * Size + 1);
gic = Graphics.FromImage(Pic);
}
public static void Rotate90(string fileName)
{
Image Pic;
string FileNameTemp;
System.Drawing.Imaging.Encoder Enc = System.Drawing.Imaging.Encoder.Transformation;
EncoderParameters EncParms = new EncoderParameters(1);
EncoderParameter EncParm;
ImageCodecInfo CodecInfo = GetEncoderInfo("image/jpeg");
// load the image to change
Pic = Image.FromFile(fileName);
Image Pic2 = (Image)Pic.Clone();
// we cannot store in the same image, so use a temporary image instead
FileNameTemp = fileName + ".temp";
// for rewriting without recompression we must rotate the image 90 degrees
EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate90);
EncParms.Param[0] = EncParm;
// now write the rotated image with new description
Pic.Save(FileNameTemp, CodecInfo, EncParms);
Pic.Dispose();
Pic = null;
// delete the original file, will be replaced later
//System.IO.File.Delete(fileName);
//System.IO.File.Move(FileNameTemp, fileName);
}
private static void WriteNewDescriptionInImage(string Filename, List <PropertyItem> myProItems)
{
Image Pic;
//int i;
string FilenameTemp;
System.Drawing.Imaging.Encoder Enc = System.Drawing.Imaging.Encoder.Transformation;//编码器
EncoderParameters EncParms = new EncoderParameters(1);
EncoderParameter EncParm;
//ImageCodecInfo CodecInfo = GetEncoderInfo("image/jpeg");
ImageCodecInfo CodecInfo = GetEncoderInfoByExtension(Path.GetExtension(Filename));
// load the image to change加载图像变化
Pic = Image.FromFile(Filename);
foreach (PropertyItem item in myProItems)
{
Pic.SetPropertyItem(item);
}
// we cannot store in the same image, so use a temporary image instead
//我们不能存储在相同的图像，所以使用一个临时的图像代替
FilenameTemp = Filename + ".temp";
// for lossless rewriting must rotate the image by 90 degrees!无损重写必须图像旋转90度！
EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate90);
EncParms.Param[0] = EncParm;
// now write the rotated image with new description现在写的旋转图像的新描述
Pic.Save(FilenameTemp, CodecInfo, EncParms);
// for computers with low memory and large pictures: release memory now电脑内存和释放内存现在：大图片
Pic.Dispose();
Pic = null;
GC.Collect();
// delete the original file, will be replaced later删除原始文件，将被替换后
System.IO.File.Delete(Filename);
// now must rotate back the written picture现在必须轮流回写图像
Pic = Image.FromFile(FilenameTemp);
EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate270);
EncParms.Param[0] = EncParm;
Pic.Save(Filename, CodecInfo, EncParms);
// release memory now释放内存
Pic.Dispose();
Pic = null;
GC.Collect();
// delete the temporary picture删除临时图片
System.IO.File.Delete(FilenameTemp);
}
private static void writeDescriptionInImage(string filename, string newAuthor, string newCopyright, string newDescription)
{
Image Pic;
PropertyItem[] PropertyItems;
byte[] bAuthor = new Byte[newAuthor.Length];
byte[] bCopyright = new Byte[newCopyright.Length];
byte[] bDescription = new Byte[newDescription.Length];
int i;
string FilenameTemp;
Encoder Enc = Encoder.Transformation;
EncoderParameters EncParms = new EncoderParameters(1);
EncoderParameter EncParm;
ImageCodecInfo CodecInfo = GetEncoderInfo("image/jpeg");
// copy description into byte array
for (i = 0; i < newAuthor.Length; i++)
{
bAuthor[i] = (byte)newAuthor[i];
}
for (i = 0; i < newCopyright.Length; i++)
{
bCopyright[i] = (byte)newCopyright[i];
}
for (i = 0; i < newDescription.Length; i++)
{
bDescription[i] = (byte)newDescription[i];
}
// load the image to change
Pic = Image.FromFile(filename);
// PropertyItem propertyAuthor = CreatePropertyImage();
// propertyAuthor.Id = 0x013b;
// propertyAuthor.Type = 2;
// propertyAuthor.Len = newAuthor.Length;
// propertyAuthor.Value = bAuthor;
// Pic.SetPropertyItem(propertyAuthor);
//
// PropertyItem propertyCopyright = CreatePropertyImage();
// propertyCopyright.Id = 0x8298;
// propertyCopyright.Type = 2;
// propertyCopyright.Len = newCopyright.Length;
// propertyCopyright.Value = bCopyright;
// Pic.SetPropertyItem(propertyCopyright);
//
// PropertyItem propertyDescription = CreatePropertyImage();
// propertyDescription.Id = 0x010e;
// propertyDescription.Type = 2;
// propertyDescription.Len = newDescription.Length;
// propertyDescription.Value = bDescription;
// Pic.SetPropertyItem(propertyDescription);
// put the new description into the right property item
PropertyItems = Pic.PropertyItems;
PropertyItems[0].Id = 0x010e; // 0x010e as specified in EXIF standard
PropertyItems[0].Type = 2;
PropertyItems[0].Len = newDescription.Length;
PropertyItems[0].Value = bDescription;
Pic.SetPropertyItem(PropertyItems[0]);
PropertyItems = Pic.PropertyItems;
// we cannot store in the same image, so use a temporary image instead
FilenameTemp = filename + ".temp";
// for lossless rewriting must rotate the image by 90 degrees!
EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate90);
EncParms.Param[0] = EncParm;
// now write the rotated image with new description
Pic.Save(FilenameTemp, CodecInfo, EncParms);
// for computers with low memory and large pictures: release memory now
Pic.Dispose();
Pic = null;
GC.Collect();
// delete the original file, will be replaced later
System.IO.File.Delete(filename);
// now must rotate back the written picture
Pic = Image.FromFile(FilenameTemp);
EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate270);
EncParms.Param[0] = EncParm;
Pic.Save(filename, CodecInfo, EncParms);
// release memory now
Pic.Dispose();
Pic = null;
GC.Collect();
// delete the temporary picture
System.IO.File.Delete(FilenameTemp);
}
public void Dispose()
{
gic.Dispose();
Pic.Dispose();
}
/// <summary>
///
/// </summary>
/// <param name="Filename"></param>
/// <param name="latDeg"></param>
/// <param name="latMin"></param>
/// <param name="latSec"></param>
/// <param name="lonDeg"></param>
/// <param name="lonMin"></param>
/// <param name="lonSec"></param>
private static void WriteLongLat(string Filename, byte latDeg, byte latMin, double latSec, byte lonDeg, byte lonMin, double lonSec)
{
const int length = 25;
Image Pic;
byte secHelper;
byte secRemains;
PropertyItem[] PropertyItems;
string FilenameTemp;
System.Drawing.Imaging.Encoder Enc = System.Drawing.Imaging.Encoder.Transformation;
EncoderParameters EncParms = new EncoderParameters(1);
EncoderParameter EncParm;
ImageCodecInfo CodecInfo = GetEncoderInfo("image/jpeg");
// load the image to change
Pic = Image.FromFile(Filename);
PropertyItems = Pic.PropertyItems;
int oldArrLength = PropertyItems.Length;
PropertyItem[] newProperties = new PropertyItem[oldArrLength];
Pic.PropertyItems.CopyTo(newProperties, 0);
newProperties[0].Id = 0x0002;
newProperties[0].Type = 5;//5-R 4-L 3-S
newProperties[0].Len = length;
newProperties[0].Value = new byte[length];
try
{
for (int i = 0; i < length; i++)
{
newProperties[0].Value[i] = 0;
}
}
catch
{
}
//PropertyItems[0].Value = Pic.GetPropertyItem(4).Value; // bDescription;
newProperties[0].Value[0] = latDeg;
newProperties[0].Value[8] = (byte)latMin;
secHelper = (byte)(latSec / 2.56);
secRemains = (byte)((latSec - (secHelper * 2.56)) * 100);
newProperties[0].Value[16] = secRemains; // add to the sum bellow x_x_*17_+16
newProperties[0].Value[17] = secHelper; // multiply by 2.56
newProperties[0].Value[20] = 100;
Pic.SetPropertyItem(newProperties[0]);
newProperties[1].Id = 0x0004;
newProperties[1].Type = 5; //5-R 4-L 3-S
newProperties[1].Len = length;
newProperties[1].Value = new byte[length];
try
{
for (int i = 0; i < length; i++)
{
newProperties[1].Value[i] = 0;
}
}
catch (Exception e)
{
Console.WriteLine("Error {0}", e.ToString());
}
newProperties[1].Value[0] = lonDeg;
newProperties[1].Value[8] = lonMin;
secHelper = (byte)(lonSec / 2.56);
secRemains = (byte)((lonSec - (secHelper * 2.56)) * 100);
newProperties[1].Value[16] = secRemains;
// add to the sum bellow x_x_*17_+16
newProperties[1].Value[17] = secHelper;
// multiply by 2.56
newProperties[1].Value[20] = 100;
// multiply by 2.56
//PropertyItem current = Pic.GetPropertyItem(2);
Pic.SetPropertyItem(newProperties[1]);
//GPS Version
newProperties[0].Id = 0x0000;
newProperties[0].Type = 1;
newProperties[0].Len = 4;
newProperties[0].Value[0] = 2;
newProperties[0].Value[1] = 2;
newProperties[0].Value[2] = 0;
newProperties[0].Value[3] = 0;
Pic.SetPropertyItem(newProperties[0]);
//GPS Lat REF
newProperties[0].Id = 0x0001;
newProperties[0].Type = 2;
newProperties[0].Len = 2;
newProperties[0].Value[0] = 78;
newProperties[0].Value[1] = 0;
Pic.SetPropertyItem(newProperties[0]);
//GPS Lon REF
newProperties[0].Id = 0x0003;
newProperties[0].Type = 2; //5-R 4-L 3-S
newProperties[0].Len = 2;
newProperties[0].Value[0] = 69;
newProperties[0].Value[1] = 0;
Pic.SetPropertyItem(newProperties[0]);
// we cannot store in the same image, so use a temporary image instead
FilenameTemp = Filename + ".temp";
// for lossless rewriting must rotate the image by 90 degrees!
EncParm =
new EncoderParameter(Enc, (long)EncoderValue.TransformRotate90);
EncParms.Param[0] = EncParm;
// now write the rotated image with new description
Pic.Save(FilenameTemp, CodecInfo, EncParms);
// for computers with low memory and large pictures: release memory now
Pic.Dispose();
Pic = null;
GC.Collect();
// delete the original file, will be replaced later
System.IO.
File.Delete(Filename);
// now must rotate back the written picture
Pic = Image.FromFile(FilenameTemp);
EncParm = new EncoderParameter(Enc, (long)EncoderValue.TransformRotate270);
EncParms.Param[0] = EncParm;
Pic.Save(Filename, CodecInfo, EncParms);
// release memory now
Pic.Dispose();
Pic = null;
GC.Collect();
// delete the temporary picture
System.IO.
File.Delete(FilenameTemp);
}
