/// <summary>
/// 组合图片
/// </summary>
/// <param name="fileName">保存文件名称</param>
/// <param name="format">图片格式</param>
/// <param name="zeroPoint">地图0点坐标位置</param>
public void Compose(string fileName, ImageFormat format, ZeroPoint zeroPoint)
{
float xCount = this.End.X - this.Start.X;
float yCount = this.End.Y - this.Start.Y;
//垂直方向碎片总数
int VerticalSizeCount = (int)Math.Abs(yCount);
//水平方向总数
int HorizontalSizeCount = (int)Math.Abs(xCount);
//构建瓦片拼接的最终地图
Bitmap map = new Bitmap(
//水平方向元素总数*单个碎片图像宽度
HorizontalSizeCount * (int)this.FragmentSize.Width,
//垂直方向元素总数*单个碎片图片高度
VerticalSizeCount * (int)this.FragmentSize.Height);
//GDI+画图
Graphics tempGraphics = Graphics.FromImage(map);
//逐行循环
for (int i = 0; i < HorizontalSizeCount; i++)
{
//逐列循环
for (int j = 0; j < VerticalSizeCount; j++)
{
//碎片绘制位置
Vectory2D point = new Vectory2D();
point.X = i * this.FragmentSize.Width;
point.Y = j * this.FragmentSize.Height;
//得到线性内存表的偏移量公式:偏移量=每行列数*当前行+当前列
int offset = VerticalSizeCount * i + j;
//从缓存碎片拼接图片
string cacheMapPath = MapFragments[offset].SavePath + "\\" + MapFragments[offset].FileName;
using (Bitmap cacheMap = new Bitmap(cacheMapPath))
{
//将碎片绘制到内存
//绘图0点坐标左上角；地图0点坐标左下角
switch (zeroPoint)
{
case ZeroPoint.LeftBottom:
tempGraphics.DrawImage(
//MapFragments[offset].Image,
cacheMap,
point.X,
AreaSize.Height - point.Y - this.FragmentSize.Height);
break;
case ZeroPoint.LeftTop:
tempGraphics.DrawImage(
//MapFragments[offset].Image,
cacheMap,
point.X,
point.Y);
break;
}
}
}
}
//保存
tempGraphics.Dispose();
FileInfo fileInfo = new FileInfo(fileName);
if (!Directory.Exists(fileInfo.DirectoryName))
{
Directory.CreateDirectory(fileInfo.DirectoryName);
}
map.Save(fileName, format);
}
/// <summary>
/// 组合图片
/// </summary>
/// <param name="fileName">保存文件名称</param>
/// <param name="format">图片格式</param>
/// <param name="zeroPoint">地图0点坐标位置</param>
public void Compose(string fileName, ImageFormat format, ZeroPoint zeroPoint)
{
float xCount = this.End.X - this.Start.X;
float yCount = this.End.Y - this.Start.Y;
//垂直方向碎片总数
int VerticalSizeCount = (int)Math.Abs(yCount);
//水平方向总数
int HorizontalSizeCount = (int)Math.Abs(xCount);
//构建瓦片拼接的最终地图
Bitmap map = new Bitmap(
//水平方向元素总数*单个碎片图像宽度
HorizontalSizeCount * (int)this.FragmentSize.Width,
//垂直方向元素总数*单个碎片图片高度
VerticalSizeCount * (int)this.FragmentSize.Height);
//GDI+画图
Graphics tempGraphics = Graphics.FromImage(map);
//逐行循环
for (int i = 0; i < HorizontalSizeCount; i++)
{
//逐列循环
for (int j = 0; j < VerticalSizeCount; j++)
{
//碎片绘制位置
Vectory2D point = new Vectory2D();
point.X = i * this.FragmentSize.Width;
point.Y = j * this.FragmentSize.Height;
//得到线性内存表的偏移量公式:偏移量=每行列数*当前行+当前列
int offset = VerticalSizeCount * i + j;
//从缓存碎片拼接图片
string cacheMapPath = MapFragments[offset].SavePath + "\\" + MapFragments[offset].FileName;
using (Bitmap cacheMap = new Bitmap(cacheMapPath))
{
//将碎片绘制到内存
//绘图0点坐标左上角；地图0点坐标左下角
switch (zeroPoint)
{
case ZeroPoint.LeftBottom:
tempGraphics.DrawImage(
//MapFragments[offset].Image,
cacheMap,
point.X,
AreaSize.Height - point.Y - this.FragmentSize.Height);
break;
case ZeroPoint.LeftTop:
tempGraphics.DrawImage(
//MapFragments[offset].Image,
cacheMap,
point.X,
point.Y);
break;
}
}
}
}
//保存
tempGraphics.Dispose();
FileInfo fileInfo = new FileInfo(fileName);
if (!Directory.Exists(fileInfo.DirectoryName))
{
Directory.CreateDirectory(fileInfo.DirectoryName);
}
map.Save(fileName, format);
}