public ClassImage GetImage(string src)
{
if (db == null)
{
return(null);
}
string key = mapType + src;
ClassImage img1 = null;
IQuery query = db.Query();
query.Constrain(typeof(MapClass));
query.Descend("_picUrl").Constrain(key);
IObjectSet result = query.Execute();
img1 = new ClassImage();
img1.PicUrl = key;
if (result.Count > 0)
{
MapClass map = result[0] as MapClass;
try {
img1.PicImage = Bitmap.FromStream(new MemoryStream(map.Stream));
} catch { }
}
else if (IsDownMap && !downlist.ContainsKey(src) && downlist.Count < 100)//多线程下载
{
BackgroundWorker bw = new BackgroundWorker();
bw.DoWork += new DoWorkEventHandler(bw_DoWork);
img1.DownUrl = src;
bw.RunWorkerAsync(img1);
}
return(img1);
}
protected void downCompleted(ClassImage image)
{
if (OnDownCompleted != null)
{
OnDownCompleted(image);
}
}
public ClassImage GetImage(string src)
{
ClassImage img1 = null;
IQuery query = db.Query();
query.Constrain(typeof(MapClass));
query.Descend("_picUrl").Constrain(src);
IObjectSet result = query.Execute();
img1 = new ClassImage();
img1.PicUrl = src;
if (result.Count > 0)
{
MapClass map = result[0] as MapClass;
try {
img1.PicImage = Bitmap.FromStream(new MemoryStream(map.Stream));
} catch { }
}
else if (IsDownMap)
{
img1.PicImage = downloadmap(src);
}
return(img1);
}
private void drawImage(System.Drawing.Graphics g, MapTile tile, TileType tileType, ImageAttributes imageA)
{
ClassImage img = FindImage(baseNames[tileType] + tile.Name);
string baseUrl = tile.Url;
IDataHelper data = dataHelpers[tileType];
if (img == null)
{
img = data.GetImage(baseUrl, tile.Name);
if (img == null)
{
img = new ClassImage();
}
if (img.PicImage != null)
{
listImages.Add(img);
}
}
img.IsDiscard = false;
img.Left = tile.Left;
img.Top = tile.Top;
if (img.Left < -nPerWidth || img.Left > _width || img.Top > _height || img.Top < -nPerWidth)
{
return;
}
Rectangle rect = new Rectangle(img.Left, img.Top, nPerWidth, nPerWidth);
if (img.PicImage != null && g != null)
{
g.DrawImage(img.PicImage, rect, 0, 0, nPerWidth, nPerWidth, GraphicsUnit.Pixel, imageA);
}
}
public void SetImage(ClassImage obj)
{
MapClass map = new MapClass();
MemoryStream stream = new MemoryStream();
map.PicUrl = obj.PicUrl;
obj.PicImage.Save(stream, ImageFormat.Png);
map.Stream = stream.ToArray();
stream.Close();
Delete(obj.PicUrl);
db.Get(map);
db.Commit();
}
void bw_DoWork(object sender, DoWorkEventArgs e)
{
ClassImage img1 = e.Argument as ClassImage;
if (!downlist.ContainsKey(img1.DownUrl))
{
downlist.Add(img1.DownUrl, img1); //增加下载地址
img1.PicImage = downloadmap(img1.DownUrl);
downlist.Remove(img1.DownUrl); //移除下载地址
if (OnDownCompleted != null)
{
OnDownCompleted(img1);
}
}
}
//private void drawImage(System.Drawing.Graphics g, MapTile tile, TileType tileType, ImageAttributes imageA)
//{
// ClassImage img = FindImage(baseNames[tileType] + tile.Name);
// string baseUrl = tile.Url;
// IDataHelper data = dataHelpers[tileType];
// if (img == null)
// {
// img = data.GetImage(baseUrl, tile.Name);
// if (img == null)
// {
// img = new ClassImage();
// }
// if (img.PicImage != null)
// listImages.Add(img);
// }
// img.IsDiscard = false;
// img.Left = tile.Left;
// img.Top = tile.Top;
// if (img.Left < -nPerWidth || img.Left > _width || img.Top > _height || img.Top < -nPerWidth)
// {
// return;
// }
// Rectangle rect = new Rectangle(img.Left, img.Top, nPerWidth, nPerWidth);
// if (img.PicImage != null && g != null)
// g.DrawImage(img.PicImage, rect, 0, 0, nPerWidth, nPerWidth, GraphicsUnit.Pixel, imageA);
//}
private void drawImage(MapTile tile, TileType tileType, ImageAttributes imageA)
{
ClassImage img = FindImage(baseNames[tileType] + tile.Name);
string baseUrl = tile.Url;
IDataHelper data = dataHelpers[tileType];
if (img == null)
{
img = data.GetImages(baseUrl, tile.Name);
}
img.IsDiscard = false;
img.Left = tile.Left;
img.Top = tile.Top;
if (img.Left < -nPerWidth || img.Left > _width || img.Top > _height || img.Top < -nPerWidth)
{
return;
}
}
private void downloadcomplete(MapClass obj)
{
if (gispainter != null)
{
ClassImage img = FindImage(obj.PicUrl);
if (img != null)
{
if (obj.Stream != null)
{
img.PicImage = Bitmap.FromStream(new MemoryStream(obj.Stream)); //DataHelper.GetImage(obj.PicUrl).PicImage;
}
if (Invalidate != null)
{
Invalidate(new Rectangle(img.Left, img.Top, 200, 200), true);
}
}
}
}
public List <ClassImage> GetMapList(int width, int height, int nScaleLevel, double fLongitude, double fLatitude)
{
longgitude = fLongitude;
latitude = fLatitude;
int[] iw = new int[] { Convert.ToInt32(fLongitude * 100000), Convert.ToInt32(fLatitude * 100000) };
double sw = Math.Pow(2, scaleLevel) * 256 / imgSize;
int[] gw = toMapId(iw, scaleLevel);
int hw = imgSize;
int jw = gw[0] - Convert.ToInt32(Math.Ceiling((width / 2d - gw[2]) / hw));
int kw = gw[1] - Convert.ToInt32(Math.Ceiling((height / 2d - gw[3]) / hw));
int lw = gw[0] + Convert.ToInt32(Math.Ceiling((width / 2d + gw[2]) / hw) - 1);
int zw = gw[1] + Convert.ToInt32(Math.Ceiling((height / 2d + gw[3]) / hw) - 1);
double[] cw = new double[] { -iw[0] / sw, iw[1] / sw };
List <ClassImage> retlist = new List <ClassImage>();
for (int mw = jw; mw <= lw; mw++)
{
for (int _w = kw; _w <= zw; _w++)
{
int nPicLeft = (mw * imgSize) + Convert.ToInt32(cw[0]) + width / 2;
int nPicTop = (-1 - _w) * imgSize + Convert.ToInt32(cw[1]) + height / 2;
string strPic = getMapImagesUrl(mw, _w, scaleLevel);
ClassImage image = dataHelper.GetImage(strPic);
image.PicWidth = nPerWidth;
image.Left = nPicLeft;
image.Top = nPicTop;
if (image.PicImage == null)
{
}
retlist.Add(image);
}
}
return(retlist);
}
public ClassImage GetImageBak(string src)
{
ClassImage img1 = null;
IQuery query = db.Query();
query.Constrain(typeof(MapClass));
query.Descend("_picUrl").Constrain("_" + src);
IObjectSet result = query.Execute();
img1 = new ClassImage();
img1.PicUrl = src;
if (result.Count > 0)
{
MapClass map = result[0] as MapClass;
img1.PicImage = Bitmap.FromStream(new MemoryStream(map.Stream));
}
else
{
}
return(img1);
}
public override void SetImage(ClassImage image)
{
dataHelper.SetImage(image);
}
protected void downCompleted(ClassImage image)
{
if (OnDownCompleted != null) {
OnDownCompleted(image);
}
}
public void Paint2(Graphics g, int width, int height, int nScaleLevel, double fLongitude, double fLatitude, ImageAttributes imageAttributes)
{
longgitude = fLongitude;
latitude = fLatitude;
scaleLevel = nScaleLevel;
//if (nScaleLevel == 0)
//{
// longgitude -= Convert.ToDecimal(0.12288);
// latitude += Convert.ToDecimal(0.1496);
//}
int[] iw = new int[] { Convert.ToInt32(fLongitude * 100000), Convert.ToInt32(fLatitude * 100000) };
double sw = Math.Pow(2, scaleLevel) * 256 / imgSize;
int[] gw = toMapId(iw, scaleLevel);
int hw = imgSize;
int jw = gw[0] - Convert.ToInt32(Math.Ceiling((width / 2d - gw[2]) / hw));
int kw = gw[1] - Convert.ToInt32(Math.Ceiling((height / 2d - gw[3]) / hw));
int lw = gw[0] + Convert.ToInt32(Math.Ceiling((width / 2d + gw[2]) / hw) - 1);
int zw = gw[1] + Convert.ToInt32(Math.Ceiling((height / 2d + gw[3]) / hw) - 1);
double[] cw = new double[] { -iw[0] / sw, iw[1] / sw };
if (listImages.Count > 50) {
listImages.Clear();
GC.Collect();
}
foreach (ClassImage img in listImages) {
img.IsDiscard = true;
}
for (int mw = jw; mw <= lw; mw++)
{
for (int _w = kw; _w <= zw; _w++)
{
int nPicLeft = (mw * imgSize) + Convert.ToInt32(cw[0]) + width / 2;
int nPicTop = (-1 - _w) * imgSize + Convert.ToInt32(cw[1]) + height / 2;
string strPic = getMapImagesUrl(mw, _w, scaleLevel);
//������ʾ��Χ��
//if (nPicLeft < -nPerWidth || nPicLeft > width || nPicTop > height || nPicTop < -nPerWidth) {
// continue;
//}
ClassImage img = FindImage(strPic);
if (img == null)
{
img = dataHelper.GetImage(strPic);
if (img == null)
{
img = new ClassImage();
img.PicUrl = strPic;
}
listImages.Add(img);
}
img.IsDiscard = false;
img.Left = nPicLeft;
img.Top = nPicTop;
Rectangle rect = new Rectangle(img.Left, img.Top, 1000, 1000);
if (img.PicImage != null && g != null)
//g.DrawImage(img.PicImage, img.Left, img.Top, nPerWidth, nPerWidth);
g.DrawImage(img.PicImage, rect, 0, 0, 1000, 1000, GraphicsUnit.Pixel, imageAttributes);
//// g.DrawRectangle(Pens.Red, img.Left, img.Top, nPerWidth, nPerWidth);
string s = img.PicUrl;//ͼƬ��
//// g.DrawString(s, new Font("����", 10), Brushes.Red, new Rectangle(img.Left, img.Top, 200, 200));
}
}
double f1 = 0.00582;
double f2 = 0.00205;
//d1 = d1 - Convert.ToDecimal(f1);
//d2 = d2 - Convert.ToDecimal(f2);
double loggitude1 = longgitude - f1;
double latitude1 = latitude - f2;
//string s = string.Format("��{0}��γ{1}", loggitude1, latitude1);
//g.DrawString(s, new Font("����", 10), Brushes.Red, 0, 0);
}
public ClassImage GetImages(string src)
{
if (db == null) return null;
string key = mapType + src;
ClassImage img1 = null;
IQuery query = db.Query();
query.Constrain(typeof(MapClass));
query.Descend("_picUrl").Constrain(key);
IObjectSet result = query.Execute();
img1 = new ClassImage();
img1.PicUrl = key;
if (result.Count > 0)
{
MapClass map = result[0] as MapClass;
try
{
img1.PicImage = Bitmap.FromStream(new MemoryStream(map.Stream));
}
catch { }
}
else if (IsDownMap && !downlist.ContainsKey(src) && downlist.Count < 10)
{//���߳�����
BackgroundWorker bw = new BackgroundWorker();
bw.DoWork += new DoWorkEventHandler(bw_DoWork);
img1.DownUrl = src;
bw.RunWorkerAsync(img1);
}
else if (IsDownMap && !downlist.ContainsKey(src) && downlist.Count >= 10)
{
while (downlist.Count >= 10)
{
}
BackgroundWorker bw = new BackgroundWorker();
bw.DoWork += new DoWorkEventHandler(bw_DoWork);
img1.DownUrl = src;
bw.RunWorkerAsync(img1);
}
return img1;
}
public override List <ClassImage> GetMapList(int width, int height, int nScaleLevel, double fLongitude, double fLatitude)
{
longgitude = fLongitude;
latitude = fLatitude;
scaleLevel = nScaleLevel;
int nRows = (int)Math.Ceiling((double)height / nPerWidth / 2);
int nCols = (int)Math.Ceiling((double)width / nPerWidth / 2);
int nCenterX = width / 2;
int nCenterY = height / 2;
int offsetX = nCenterX - (int)Math.Round(((fLongitude * 100000) % (d2H[nScaleLevel] * 100000)) * nPerWidth / (d2H[nScaleLevel] * 100000));
int offsetY = 0;
if (fLatitude >= 0)
{
offsetY = nCenterY - nPerWidth + (int)Math.Round(((fLatitude * 100000) % (qxl3[nScaleLevel] * 100000)) * nPerWidth / (qxl3[nScaleLevel] * 100000));
}
else
{
offsetY = nCenterY + (int)Math.Round(((fLatitude * 100000) % (qxl3[nScaleLevel] * 100000)) * nPerWidth / (qxl3[nScaleLevel] * 100000));
}
if (nScaleLevel == 11)
{
offsetY -= 150;
}
else if (nScaleLevel == 8)
{
offsetY += 75;
}
List <ClassImage> retlist = new List <ClassImage>();
for (int nRow = nRows; nRow >= -(nRows); nRow--)
{
for (int nCol = -(nCols); nCol <= nCols; nCol++)
{
string strPic = strLevel[nScaleLevel] + "/";
string strPicPath = imageBasePath + strLevel[nScaleLevel] + "\\";
int L04m = (int)(Math.Floor((fLongitude + d2H[nScaleLevel] / 100000) / d2H[nScaleLevel]) + nCol);
int j93co = (int)(Math.Floor((fLatitude + qxl3[nScaleLevel] / 100000) / qxl3[nScaleLevel]) + nRow);
int U63K2 = (int)(360 / d2H[nScaleLevel]);
L04m = L04m % U63K2;
if (L04m >= (U63K2 / 2))
{
L04m -= U63K2;
}
if (L04m < (-U63K2 / 2))
{
L04m += U63K2;
}
int X1 = (int)(Math.Floor((double)(L04m / g6Y[nScaleLevel])));
int Y1 = (int)(Math.Floor((double)(j93co / g6Y[nScaleLevel])));
{
if (X1 < 0)
{
X1 += 1;
}
if (Y1 < 0)
{
Y1 += 1;
}
}
int X2 = (L04m) - X1 * g6Y[nScaleLevel];
int Y2 = (j93co) - Y1 * g6Y[nScaleLevel];
strPic += X1 + "_" + Y1 + "/";
strPic += X2 + "_" + Y2 + ".png";
strPicPath += X1 + "_" + Y1 + "\\";
strPicPath += X2 + "_" + Y2 + ".png";
int nPicLeft = nCol * nPerWidth + offsetX;
int nPicTop = -nRow * nPerWidth + offsetY;
ClassImage image = dataHelper.GetImage(strPic);
image.PicWidth = nPerWidth;
image.Left = nPicLeft;
image.Top = nPicTop;
if (image.PicImage == null)
{
}
retlist.Add(image);
}
}
return(retlist);
}
void dataHelper_OnDownCompleted(ClassImage mapclass)
{
base.downCompleted(mapclass);
}
public void SetImage(ClassImage image)
{
dataHelper.SetImage(image);
}
public void Paint(Graphics g, int width, int height, int nScaleLevel, double fLongitude, double fLatitude, ImageAttributes imageAttributes)
{
double longgitude = fLongitude;
double latitude = fLatitude;
int scaleLevel = nScaleLevel;
//switch (nScaleLevel)
//{
// case 10:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude-=Convert.ToDecimal(1.445394);
// fLongitude += Convert.ToDecimal(1.012394);
// break;
// case 9:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= Convert.ToDecimal(1.440394)/2 ;
// fLongitude += Convert.ToDecimal(1.022394)/2;
// break;
// case 8:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= Convert.ToDecimal(1.3200394)/4;
// fLongitude += Convert.ToDecimal(1.10739394)/4;
// break;
// case 7:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= Convert.ToDecimal(1.300394)/8;
// fLongitude += Convert.ToDecimal(0.802394)/8;
// break;
// case 6:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= Convert.ToDecimal(1.265394)/16;
// fLongitude += Convert.ToDecimal(0.8792394)/16;
// break;
// case 5:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= Convert.ToDecimal(0.900194)/32;
// fLongitude += Convert.ToDecimal(1.159994)/32;
// break;
// case 4:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= Convert.ToDecimal(0.300194) / 64;
// fLongitude += Convert.ToDecimal(1.359994) / 64;
// break;
// case 3:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= -Convert.ToDecimal(1.036194) / 128;
// fLongitude += Convert.ToDecimal(1.692099) / 128;
// break;
// case 2:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= -Convert.ToDecimal(3.4690194) / 256;
// fLongitude += Convert.ToDecimal(2.61009) / 256;
// break;
// case 1:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= -Convert.ToDecimal(5.37394) / 512;
// fLongitude += Convert.ToDecimal(4.47394) / 512;
// break;
// case 0:
// latitude -= Convert.ToDecimal(1.585394);
// longgitude += Convert.ToDecimal(1.385394);
// fLatitude -= Convert.ToDecimal(1.440394) / 1024;
// fLongitude += Convert.ToDecimal(1.022394) / 1024;
// break;
//}
int[] iw = new int[] { Convert.ToInt32(fLongitude * 100000), Convert.ToInt32(fLatitude * 100000) };
double sw = Math.Pow(2, scaleLevel) * 256 / 200;
int[] gw = toMapId(iw, scaleLevel);
int hw = 200;
int jw = gw[0] - Convert.ToInt32(Math.Ceiling((width / 2d - gw[2]) / hw));
int kw = gw[1] - Convert.ToInt32(Math.Ceiling((height / 2d - gw[3]) / hw));
int lw = gw[0] + Convert.ToInt32(Math.Ceiling((width / 2d + gw[2]) / hw) - 1);
int zw = gw[1] + Convert.ToInt32(Math.Ceiling((height / 2d + gw[3]) / hw) - 1);
double[] cw = new double[] { -iw[0] / sw, iw[1] / sw };
for (int mw = jw - 30; mw <= lw+10; mw++)
{
for (int _w = kw - 30; _w <= zw+10; _w++)
{
int nPicLeft = (mw * 200) + Convert.ToInt32(cw[0]) + width / 2;
int nPicTop = (-1 - _w) * 200 + Convert.ToInt32(cw[1]) + height / 2;
string strPic = getMapImagesUrl(mw, _w, scaleLevel);
//������ʾ��Χ��
//if (nPicLeft < -nPerWidth || nPicLeft > width || nPicTop > height || nPicTop < -nPerWidth) {
// continue;
//}
ClassImage img = FindImage(strPic);
if (img == null)
{
img = mapview.DataHelper.GetImage(strPic);
if (img == null)
{
img = new ClassImage();
img.PicUrl = strPic;
}
listImages.Add(img);
}
img.IsDiscard = false;
img.Left = nPicLeft;
img.Top = nPicTop;
Rectangle rect = new Rectangle(img.Left, img.Top, 1000, 1000);
if (img.PicImage != null && g != null)
//g.DrawImage(img.PicImage, img.Left, img.Top, nPerWidth, nPerWidth);
g.DrawImage(img.PicImage, rect, 0, 0, 1000, 1000, GraphicsUnit.Pixel, imageAttributes);
}
}
double f1 = 0.00582;
double f2 = 0.00205;
//d1 = d1 - Convert.ToDecimal(f1);
//d2 = d2 - Convert.ToDecimal(f2);
double loggitude1 = longgitude - Convert.ToDouble(f1);
double latitude1 = latitude - Convert.ToDouble(f2);
//string s = string.Format("��{0}��γ{1}", loggitude1, latitude1);
//g.DrawString(s, new Font("����", 10), Brushes.Red, 0, 0);
}
void dataHelper_OnDownCompleted(ClassImage mapclass)
{
base.downCompleted(mapclass);
}
public void Paint2(Graphics g, int width, int height, int nScaleLevel, double fLongitude, double fLatitude, ImageAttributes imageAttributes)
{
longgitude = fLongitude;
latitude = fLatitude;
scaleLevel = nScaleLevel;
//if (nScaleLevel == 0)
//{
// longgitude -= Convert.ToDecimal(0.12288);
// latitude += Convert.ToDecimal(0.1496);
//}
int[] iw = new int[] { Convert.ToInt32(fLongitude * 100000), Convert.ToInt32(fLatitude * 100000) };
double sw = Math.Pow(2, scaleLevel) * 256 / imgSize;
int[] gw = toMapId(iw, scaleLevel);
int hw = imgSize;
int jw = gw[0] - Convert.ToInt32(Math.Ceiling((width / 2d - gw[2]) / hw));
int kw = gw[1] - Convert.ToInt32(Math.Ceiling((height / 2d - gw[3]) / hw));
int lw = gw[0] + Convert.ToInt32(Math.Ceiling((width / 2d + gw[2]) / hw) - 1);
int zw = gw[1] + Convert.ToInt32(Math.Ceiling((height / 2d + gw[3]) / hw) - 1);
double[] cw = new double[] { -iw[0] / sw, iw[1] / sw };
if (listImages.Count > 50)
{
listImages.Clear();
GC.Collect();
}
foreach (ClassImage img in listImages)
{
img.IsDiscard = true;
}
for (int mw = jw; mw <= lw; mw++)
{
for (int _w = kw; _w <= zw; _w++)
{
int nPicLeft = (mw * imgSize) + Convert.ToInt32(cw[0]) + width / 2;
int nPicTop = (-1 - _w) * imgSize + Convert.ToInt32(cw[1]) + height / 2;
string strPic = getMapImagesUrl(mw, _w, scaleLevel);
//不在显示范围内
//if (nPicLeft < -nPerWidth || nPicLeft > width || nPicTop > height || nPicTop < -nPerWidth) {
// continue;
//}
ClassImage img = FindImage(strPic);
if (img == null)
{
img = dataHelper.GetImage(strPic);
if (img == null)
{
img = new ClassImage();
img.PicUrl = strPic;
}
listImages.Add(img);
}
img.IsDiscard = false;
img.Left = nPicLeft;
img.Top = nPicTop;
Rectangle rect = new Rectangle(img.Left, img.Top, 1000, 1000);
if (img.PicImage != null && g != null)
{
//g.DrawImage(img.PicImage, img.Left, img.Top, nPerWidth, nPerWidth);
g.DrawImage(img.PicImage, rect, 0, 0, 1000, 1000, GraphicsUnit.Pixel, imageAttributes);
}
//// g.DrawRectangle(Pens.Red, img.Left, img.Top, nPerWidth, nPerWidth);
string s = img.PicUrl;//图片名
//// g.DrawString(s, new Font("宋体", 10), Brushes.Red, new Rectangle(img.Left, img.Top, 200, 200));
}
}
double f1 = 0.00582;
double f2 = 0.00205;
//d1 = d1 - Convert.ToDecimal(f1);
//d2 = d2 - Convert.ToDecimal(f2);
double loggitude1 = longgitude - f1;
double latitude1 = latitude - f2;
//string s = string.Format("经{0}：纬{1}", loggitude1, latitude1);
//g.DrawString(s, new Font("宋体", 10), Brushes.Red, 0, 0);
}
void mapview_OnDownCompleted(ClassImage mapclass)
{
if (mapclass.PicImage != null)
tlVectorControl1.DrawArea.InvadateRect(mapclass.Bounds);
}
public void SetImage(ClassImage image)
{
dataHelper.SetImage(image);
}
public abstract void SetImage(ClassImage image);
public ClassImage GetImageBak(string src)
{
ClassImage img1 = null;
IQuery query = db.Query();
query.Constrain(typeof(MapClass));
query.Descend("_picUrl").Constrain("_" + src);
IObjectSet result = query.Execute();
img1 = new ClassImage();
img1.PicUrl = src;
if (result.Count > 0) {
MapClass map = result[0] as MapClass;
img1.PicImage = Bitmap.FromStream(new MemoryStream(map.Stream));
} else {
}
return img1;
}
public override void SetImage(ClassImage image)
{
dataHelper.SetImage(image);
}
public ClassImage GetImage(string src)
{
ClassImage img1 = null;
IQuery query = db.Query();
query.Constrain(typeof(MapClass));
query.Descend("_picUrl").Constrain(src);
IObjectSet result = query.Execute();
img1 = new ClassImage();
img1.PicUrl = src;
if (result.Count > 0) {
MapClass map = result[0] as MapClass;
try {
img1.PicImage = Bitmap.FromStream(new MemoryStream(map.Stream));
} catch { }
} else if (IsDownMap) {
img1.PicImage = downloadmap(src);
}
return img1;
}
private void drawImage(System.Drawing.Graphics g, MapTile tile, TileType tileType, ImageAttributes imageA)
{
ClassImage img = FindImage(baseNames[tileType] + tile.Name);
string baseUrl = tile.Url;
IDataHelper data = dataHelpers[tileType];
if (img == null) {
img = data.GetImage(baseUrl, tile.Name);
if (img == null) {
img = new ClassImage();
}
if (img.PicImage != null)
listImages.Add(img);
}
img.IsDiscard = false;
img.Left = tile.Left;
img.Top = tile.Top;
if (img.Left < -nPerWidth || img.Left > _width || img.Top > _height || img.Top < -nPerWidth) {
return;
}
Rectangle rect = new Rectangle(img.Left, img.Top, nPerWidth, nPerWidth);
if (img.PicImage != null && g != null)
g.DrawImage(img.PicImage, rect, 0, 0, nPerWidth, nPerWidth, GraphicsUnit.Pixel, imageA);
}
public abstract void SetImage(ClassImage image);
public void SetImage(ClassImage obj)
{
MapClass map = new MapClass();
MemoryStream stream = new MemoryStream();
map.PicUrl = obj.PicUrl;
obj.PicImage.Save(stream, ImageFormat.Png);
map.Stream = stream.ToArray();
stream.Close();
Delete(obj.PicUrl);
db.Get(map);
db.Commit();
}
public override void Paint(Graphics g, int width, int height, int nScaleLevel, double fLongitude, double fLatitude)
{
longgitude = fLongitude;
latitude = fLatitude;
scaleLevel = nScaleLevel;
ImageAttributes imageA = new ImageAttributes();
int nRows = (int)(Math.Ceiling((double)height / (double)nPerWidth / 2.0d));
int nCols = (int)Math.Ceiling((double)width / (double)nPerWidth / 2.0d);
if (listImages.Count > 50)
{
listImages.Clear();
GC.Collect();
}
foreach (ClassImage img in listImages)
{
img.IsDiscard = true;
}
int nCenterX = width / 2;
int nCenterY = height / 2;
//this.$i024=qxl3[this.nScaleLevel];
int offsetX = nCenterX - (int)Math.Round(((fLongitude * 100000) % (d2H[nScaleLevel] * 100000)) * nPerWidth / (d2H[nScaleLevel] * 100000));
int offsetY = 0;
if (fLatitude >= 0)
{
offsetY = nCenterY - nPerWidth + (int)Math.Round(((fLatitude * 100000) % (qxl3[nScaleLevel] * 100000)) * nPerWidth / (qxl3[nScaleLevel] * 100000));
}
else
{
offsetY = nCenterY + (int)Math.Round(((fLatitude * 100000) % (qxl3[nScaleLevel] * 100000)) * nPerWidth / (qxl3[nScaleLevel] * 100000));
}
//if (nOffset == 0)
{
if (nScaleLevel == 11)
{
offsetY -= 150;
}
else if (nScaleLevel == 8)
{
offsetY += 75;
}
}
//string strImgsvrUrl = "http://mappng.baidu.com/maplite/mapbank/baidu/";
//System.Net.WebClient webClient = new System.Net.WebClient();
for (int nRow = nRows; nRow >= -(nRows + 1); nRow--)
{
for (int nCol = -(nCols); nCol <= nCols; nCol++)
{
string strPic = strLevel[nScaleLevel] + "/";
string strPicPath = imageBasePath + strLevel[nScaleLevel] + "\\";
int L04m = (int)(Math.Floor((double)((fLongitude + d2H[nScaleLevel] / 100000) / d2H[nScaleLevel])) + nCol);
int j93co = (int)(Math.Floor((double)((fLatitude + qxl3[nScaleLevel] / 100000) / qxl3[nScaleLevel])) + nRow);
int U63K2 = (int)(360 / d2H[nScaleLevel]);
L04m = L04m % U63K2;
if (L04m >= (U63K2 / 2))
{
L04m -= U63K2;
}
if (L04m < (-U63K2 / 2))
{
L04m += U63K2;
}
int X1 = (int)(Math.Floor((double)(L04m / g6Y[nScaleLevel])));
int Y1 = (int)(Math.Floor((double)(j93co / g6Y[nScaleLevel])));
{
if (X1 < 0)
{
X1 += 1;
}
if (Y1 < 0)
{
Y1 += 1;
}
}
int X2 = (L04m) - X1 * g6Y[nScaleLevel];
int Y2 = (j93co) - Y1 * g6Y[nScaleLevel];
strPic += X1 + "_" + Y1 + "/";
strPic += X2 + "_" + Y2 + ".png";
strPicPath += X1 + "_" + Y1 + "\\";
strPicPath += X2 + "_" + Y2 + ".png";
int nPicLeft = nCol * nPerWidth + offsetX;
int nPicTop = -nRow * nPerWidth + offsetY;
//不在显示范围内
//if (nPicLeft < -nPerWidth || nPicLeft > width || nPicTop > height || nPicTop < -nPerWidth) {
// continue;
//}
ClassImage img = FindImage(strPic);
if (img == null)
{
img = dataHelper.GetImage(strPic);
if (listImages.Count < 50)
{
listImages.Add(img);
}
}
img.IsDiscard = false;
img.Left = nPicLeft;
img.Top = nPicTop;
//img.Longitude = fLongitude - (nCenterX - nPicLeft) * d2H[nScaleLevel] / nPerWidth;
//img.Latitude = fLatitude + (nCenterY - nPicTop) * qxl3[nScaleLevel] / nPerWidth;
Rectangle rect = new Rectangle(img.Left, img.Top, nPerWidth, nPerWidth);
if (img.PicImage != null && g != null)
{
g.DrawImage(img.PicImage, img.Left, img.Top, nPerWidth, nPerWidth);
}
//g.DrawImage(img.PicImage, rect, img.Left, img.Top, nPerWidth, nPerWidth, GraphicsUnit.Pixel, imagAttributes);
if (ShowMapInfo)
{
g.DrawRectangle(Pens.Red, img.Left, img.Top, nPerWidth, nPerWidth);
//string s = string.Format("x{0}:y{1}", img.Left, img.Top);//图片左上角坐标
//string s = "(" + img.Longitude.ToString(nfInfo) + "," + img.Latitude.ToString(nfInfo) + ")";//经纬度
string s = img.PicUrl;//图片名
g.DrawString(s, new Font("宋体", 10), Brushes.Red, new Rectangle(img.Left, img.Top, 300, 300));
}
}
}
// string s = string.Format("{0}行{1}列", nRows, nCols);
// string s = string.Format("经{0}：纬{1}", longgitude, latitude);//显示中心点经纬度
//
// g.DrawString(s, new Font("宋体", 10), Brushes.Red, 20, 40);
}
