private void btnSave_Click(object sender, EventArgs e)
{
//determine output and call build function
if (m_imgSource != null && m_destination != null)
{
// get selected max zoom
m_selectedLevel = m_zoomLevels.level[cboZoomSelect.SelectedIndex];
if (generateZXYTiles(m_selectedLevel.zyxLevel))
{
DialogResult dlgR = MessageBox.Show("Tiles created at " + m_destination, "Complete", MessageBoxButtons.OK);
}
}
}
public zoomLevels(Form1.projection projection)
{
level = new List <zoomLevel>();
for (int i = 0; i < 24; i++)
{
zoomLevel currentLevel = new zoomLevel();
currentLevel.zyxLevel = i;
if (i - 1 >= 0)
{
currentLevel.bingLevel = i - 1;
}
;
switch (projection)
{
case Form1.projection.Mercator:
currentLevel.pixelsX = Form1.c_TileSize * (int)Math.Pow(2, i);
currentLevel.tilesX = currentLevel.pixelsX / Form1.c_TileSize;
break;
case Form1.projection.Equirectangular:
currentLevel.pixelsX = (Form1.c_TileSize * (int)Math.Pow(2, i)) * 2;
currentLevel.tilesX = (currentLevel.pixelsX / Form1.c_TileSize);
break;
default:
break;
}
currentLevel.pixelsY = Form1.c_TileSize * (int)Math.Pow(2, i);
currentLevel.tilesY = currentLevel.pixelsY / Form1.c_TileSize;
currentLevel.ResolutionPerPixelMi = 24901.0 / currentLevel.pixelsX;
currentLevel.ResolutionPerPixelFt = 131477280.0 / currentLevel.pixelsX;
currentLevel.ResolutionPerPixelKM = 40075.0 / currentLevel.pixelsX;
currentLevel.ResolutionPerPixelM = 40075000.0 / currentLevel.pixelsX;
//if (Math.Max(currentLevel.pixelsX,currentLevel.pixelsY) <= Math.Pow(2,15)
//{
level.Add(currentLevel);
//}
}
;
}
private bool createTiles(ref Image imgCurrent, int intCurrXGroup, int intCurrYGroup, int intCurrentZ, zoomLevel currLevel)
{
int intCurrentX = 0;
int intCurrentY = 0;
int intMaxLevelRow = 0;
int intMaxLevelColumn = 0;
int intCurrentTileCount = 0;
string zFolder = "";
string xFolder = "";
string yFile = "";
string saveFilePath;
Boolean blnReturn = true;
// update labels
tbxProcessing.Text = string.Format(m_strProcessingTemplate, intCurrentZ, m_selectedLevel.zyxLevel, m_strStepResize);
progressProcessing.Visible = true;
progressProcessing.Value = 0;
progressProcessing.Minimum = 0;
progressProcessing.Maximum = currLevel.tilesX * currLevel.tilesY;
// create zoom (z) folder
zFolder = intCurrentZ.ToString();
saveFilePath = m_destination + "\\" + zFolder + "\\";
createFolder(saveFilePath);
intMaxLevelColumn = currLevel.tilesX;
intMaxLevelRow = currLevel.tilesY;
for (intCurrentX = 0; intCurrentX < intMaxLevelColumn; intCurrentX++)
{
// create column (x) folder
xFolder = ((intCurrXGroup * currLevel.tilesX) + intCurrentX).ToString();
saveFilePath = m_destination + "\\" + zFolder + "\\" + xFolder + "\\";
createFolder(saveFilePath);
for (intCurrentY = 0; intCurrentY < intMaxLevelRow; intCurrentY++)
{
tbxProcessing.Text = string.Format(m_strProcessingTemplate, intCurrentZ, m_selectedLevel.zyxLevel, m_strStepTiles);
yFile = ((intCurrYGroup * currLevel.tilesY) + intCurrentY).ToString();
using (Image imgTile = cropImage(imgCurrent, intCurrentX, intCurrentY, c_TileSize, c_TileSize))
{
// save file
saveFilePath = m_destination + "\\" + zFolder + "\\" + xFolder + "\\" + yFile + m_saveExtenstion;
imgTile.Save(saveFilePath, m_saveFormat);
}
intCurrentTileCount++;
progressProcessing.Value = intCurrentTileCount;
}
}
return(blnReturn);
}
private bool generateZXYTiles(int intMaxZoom)
{
Image imgCurrent;
zoomLevel currLevel, maxLevel = null;
bool blnReturn = true;
int intCurrentZ = 0;
int intMaxLevelRow = 0;
int intMaxLevelColumn = 0;
int intMaxGoodZoomLevel = 0;
int intGroupCountX = 0;
int intCurrXGroup = 0;
int intCurrYGroup = 0;
int tileXoffset, tileYoffset, tileXpixels, tileYpixels;
bool successfulResize = false;
bool foundMaxResize = false;
tbxError.Text = "";
try
{
// find the maximum successful reize level possible
if (!foundMaxResize)
{
// find the maximum size that the image can be successfully resized to.
while (!successfulResize)
{
successfulResize = false;
for (int i = intMaxZoom; i > 0; i--)
{
try
{
// get zoom settings for test size
maxLevel = m_zoomLevels.level.Find(x => x.zyxLevel.Equals(i));
// resize
imgCurrent = resize(m_imgSource, maxLevel.pixelsX, maxLevel.pixelsY);
// successful resize, set result value
imgCurrent.Dispose();
intMaxGoodZoomLevel = i;
successfulResize = true;
break;
}
catch
{
// resize failed, try next size smaller
successfulResize = false;
}
}
// quit if no zoom level works;
if (intMaxGoodZoomLevel == 0)
{
break;
}
}
}
for (intCurrentZ = 0; intCurrentZ <= intMaxZoom; intCurrentZ++)
{
// resize image to zoom level
currLevel = m_zoomLevels.level.Find(x => x.zyxLevel.Equals(intCurrentZ));
intMaxLevelColumn = currLevel.tilesX;
intMaxLevelRow = currLevel.tilesY;
if (maxLevel.zyxLevel >= currLevel.zyxLevel)
{
intCurrXGroup = 0;
intCurrYGroup = 0;
imgCurrent = resize(m_imgSource, currLevel.pixelsX, currLevel.pixelsY);
intGroupCountX = 0;
createTiles(ref imgCurrent, intCurrXGroup, intCurrYGroup, intCurrentZ, currLevel);
imgCurrent.Dispose();
}
else
{
// current level larger than max capable level, process in sections
intGroupCountX = (currLevel.tilesX / maxLevel.tilesX);
for (intCurrXGroup = 0; intCurrXGroup < intGroupCountX; intCurrXGroup++)
{
for (intCurrYGroup = 0; intCurrYGroup < intGroupCountX; intCurrYGroup++)
{
tileXoffset = intCurrXGroup;
tileYoffset = intCurrYGroup;
tileXpixels = (m_imgSource.Width / intGroupCountX);
tileYpixels = (m_imgSource.Height / intGroupCountX);
imgCurrent = cropImage(m_imgSource, tileXoffset, tileYoffset, tileXpixels, tileYpixels);
imgCurrent = resize(imgCurrent, maxLevel.pixelsX, maxLevel.pixelsY);
createTiles(ref imgCurrent, intCurrXGroup, intCurrYGroup, intCurrentZ, maxLevel);
imgCurrent.Dispose();
}
}
}
}
tbxProcessing.Text = "";
//progressProcessing.Visible = false;
//progressProcessing.Value = 0;
}
catch (Exception ex)
{
tbxError.Text = "Tile creation error" + Environment.NewLine + "message:" + Environment.NewLine + ex.Message + Environment.NewLine + "stackTrace:" + Environment.NewLine + ex.StackTrace;
blnReturn = false;
}
return(blnReturn);
}
