// Analyze
public void Analyze(cDTED SRTM, cDTED DTED)
{
if (SRTM.posts.Count != DTED.posts.Count)
{
Debug.WriteLine("Analysis:Analyze() - SRTM and DTED sizes do not agree");
return;
}
var csv = new System.Text.StringBuilder();
Post largest = new Post(-10000, 0, 0);
double average_delta = 0;
//for (int m = 0; m < SRTM.posts.Count; m++)
for (int m = 400000; m < 440000; m++)
{
int difference = SRTM.posts[m]._alt_ft - DTED.posts[m]._alt_ft;
//Debug.WriteLine("SRTM: " + SRTM.posts[m]._alt_ft + "- DTED: " + DTED.posts[m]._alt_ft + " = " + difference);
if (m % 1000 == 0)
{
Debug.WriteLine("Writing: " + m);
}
var newLine = string.Format("{0},{1},{2},{3},{4},{5},{6}", SRTM.posts[m]._lat, SRTM.posts[m]._lon, SRTM.posts[m]._alt_ft, DTED.posts[m]._lat, DTED.posts[m]._lon, DTED.posts[m]._alt_ft, difference);
csv.AppendLine(newLine);
File.WriteAllText("CompareTest.csv", csv.ToString());
}
}
// Compare
public void Compare(double startLat, double startLon, double endLat, double endLon, string SRTM_fold, string DTED_fold)
{
string extension = ".dt2";
if (startLat > endLat)
{
Debug.WriteLine("startLat needs to be less than endLat");
}
if (startLon > endLon)
{
Debug.WriteLine("startLon needs to be less than endLon");
}
int roundStartLat = (int)Math.Floor(startLat);
int roundEndLat = (int)Math.Floor(endLat);
int roundStartLon = (int)Math.Floor(startLon);
int roundEndLon = (int)Math.Floor(endLon);
for (int curLon = roundStartLon; curLon <= roundEndLon; curLon++)
{
//TODO: May need to add leading zeros
string curLonStr;
if (curLon < 0)
{
curLonStr = "W" + (-1 * curLon).ToString("D3");
}
else
{
curLonStr = "E" + curLon.ToString("D3");
}
for (int curLat = roundStartLat; curLat <= roundEndLat; curLat++)
{
//TODO: May need to add leading zeros
string curLatStr;
if (curLat < 0)
{
curLatStr = "S" + (-1 * curLat).ToString("D2");
}
else
{
curLatStr = "N" + curLat.ToString("D2");
}
string SRTM_path = SRTM_fold + curLonStr + "\\" + curLatStr + extension;
string DTED_path = DTED_fold + curLonStr + "\\" + curLatStr + extension;
Debug.WriteLine("Analysis::Compare(): SRTM Path: " + SRTM_path);
Debug.WriteLine("Analysis::Compare(): DTED Path: " + DTED_path);
cDTED SRTM = new cDTED();
cDTED DTED = new cDTED();
Debug.WriteLine("Analysis::Compare(): Loading SRTM File...");
SRTM.readFile(SRTM_path);
Debug.WriteLine("Analysis::Compare(): Loading DTED File...");
DTED.readFile(DTED_path);
Debug.WriteLine("SRTM Size: " + SRTM.posts.Count + " DTED Size: " + DTED.posts.Count);
AnalyzeArea(SRTM, DTED, startLat, endLon, 250);
//Analyze(SRTM, DTED);
}
}
}
public void AnalyzeArea(cDTED SRTM, cDTED DTED, double startLat, double endLon, int size)
{
int[,] DTED_points = new int[size, size];
int[,] SRTM_points = new int[size, size];
double[] longitudes = new double[size];
double[] latitudes = new double[size];
int lonIndex = -1;
//Find first point
for (int i = 0; i <= SRTM.posts.Count; i++) //Loop through Lon
{
if (SRTM.posts[i]._lon >= endLon) //File is index to west, so find furthest west of the two (start/end)
{
lonIndex = i;
break;
}
}
if (lonIndex == -1)
{
Debug.WriteLine("Analysis:AnalyzeArea() - Start Longitude not found.");
}
int latIndex = -1;
//Find first point
for (int i = 0; i <= SRTM.posts.Count; i++) //Loop through Lon
{
if (SRTM.posts[i]._lat >= startLat)
{
latIndex = i;
break;
}
}
if (latIndex == -1)
{
Debug.WriteLine("Analysis:AnalyzeArea() - Start Latitude not found.");
}
Debug.WriteLine("LatIdx: " + latIndex + " LonIdx: " + lonIndex);
//Actually pull at points
for (int i = size - 1; i >= 0; i--) //Loop through Lon
{
int row_idx = lonIndex + i * DTED.lon_cnt;
//for (int j = size - 1; j >= 0; j--) //Loop through lat
for (int j = 0; j < size; j++) //Loop through lat
{
int idx = row_idx + latIndex + j;
//Debug.WriteLine("SRTM: (" + SRTM.posts[idx]._lat + "," + SRTM.posts[idx]._lon + "): " + SRTM.posts[idx]._alt_ft );
SRTM_points[j, i] = SRTM.posts[idx]._alt_ft;
DTED_points[j, i] = DTED.posts[idx]._alt_ft;
}
}
//Doing this seperate to try to save some processing time
for (int i = size - 1; i >= 0; i--) //Loop through Lon
{
int idx = lonIndex + i * DTED.lon_cnt;
longitudes[i] = SRTM.posts[idx]._lon;
}
//for (int j = size - 1; j >= 0; j--) //Loop through lat
for (int j = 0; j < size; j++) //Loop through lat
{
int idx = latIndex + j;
latitudes[j] = SRTM.posts[idx]._lat;
}
/*
* for(int i = 0;i < size;i++)
* {
* Debug.WriteLine("Latitudes: " + i + " " + latitudes[i]);
* Debug.WriteLine("Longitudes: " + i + " " + longitudes[i]);
* }
*/
var SRTM_CSV = new System.Text.StringBuilder();
var DTED_CSV = new System.Text.StringBuilder();
var Diff_CSV = new System.Text.StringBuilder();
string line = "";
for (int i = 0; i < size; i++)
{
line = line + "," + longitudes[i];
}
SRTM_CSV.AppendLine(line);
DTED_CSV.AppendLine(line);
Diff_CSV.AppendLine(line);
string dted_line = "";
string srtm_line = "";
string diff_line = "";
//lat, lon is order
for (int i = 0; i < size; i++)
{
srtm_line = latitudes[i] + ",";
dted_line = latitudes[i] + ",";
diff_line = latitudes[i] + ",";
for (int j = 0; j < size; j++)
{
srtm_line = srtm_line + SRTM_points[i, j] + ",";
dted_line = dted_line + DTED_points[i, j] + ",";
diff_line = diff_line + (SRTM_points[i, j] - DTED_points[i, j]) + ",";
//Debug.WriteLine(dted_line);
}
SRTM_CSV.AppendLine(srtm_line);
DTED_CSV.AppendLine(dted_line);
Diff_CSV.AppendLine(diff_line);
}
File.WriteAllText("SRTM_Area.csv", SRTM_CSV.ToString());
File.WriteAllText("DTED_Area.csv", DTED_CSV.ToString());
File.WriteAllText("Diff_Area.csv", Diff_CSV.ToString());
}
