/// <summary>
/// Figures out what kind of data the file contains and passes it to parser.
/// </summary>
/// <param name="myStream">the file to parse</param>
private void readFileData(Stream myStream)
{
// Make a new StreamReader to read the text input file.
StreamReader reader = new StreamReader(myStream);
// Check the first line of the file for its file type identifier.
string fileType = reader.ReadLine().Trim();
// The new file data object will be stored here if successful.
FileDataAbstract fileData;
// Try to read the file data.
if (fileType == "I0") { // TODO: Finish other data file types.
fileData = new FileDataI0(reader.ReadToEnd(), this.currentTimeStep); }
// Throw an exception if the format is not recognized.
else {
throw new Exception("The file format was not recognized; only files in 'I0' format work at this time."); }
// If there are already other data files, make sure they are compatible.
if (this.fileDataList.Count > 0) {
FileDataAbstract tempData = this.fileDataList[0];
if (tempData.Xdim != fileData.Xdim || tempData.Ydim != fileData.Ydim || tempData.Zdim != fileData.Zdim) {
throw new Exception("The file you are attempting to add has different dimensions than the previously added file(s). "
+ "If you would like to start over with new data, please clear the current data first."); } }
// If we've gotten this far without Exception, we can
// assume the file data will be added successfully.
this.currentTimeStep++;
this.fileDataList.Add(fileData);
// Take the file data and turn it into a list of grid points.
List<GridPoint> pointsList = fileData.GetSortedGridPointList();
// If there are already other file(s) in the program, clear out
// the current trees and add their data to the points list.
if (this.fileDataList.Count > 1) {
// Clear the trees.
this.joinTreeView.ClearTrees();
this.splitTreeView.ClearTrees();
this.contourTreeView.ClearTrees();
// Add the data.
foreach (FileDataAbstract data in this.fileDataList) {
pointsList = pointsList.Union(data.GetSortedGridPointList()).ToList();
pointsList.Sort(new Comparison<GridPoint>(GridPoint.Compare)); } }
// Create the join tree and split tree from the file data.
JoinTree joinTree = new JoinTree(pointsList[0].value, pointsList.Last().value, pointsList);
SplitTree splitTree = new SplitTree(pointsList[0].value, pointsList.Last().value, pointsList);
// Simplify the trees, except for the others' critical points.
joinTree.SimplifyExceptFor(splitTree.GetCritical());
splitTree.SimplifyExceptFor( joinTree.GetCritical());
// Make the contour tree.
ContourTree contourTree = new ContourTree(joinTree, splitTree);
this.contourTreeView.AddTree(contourTree);
this.topology.SetTree(contourTree);
this.topology.AddTimeStep();
// Simplify trees the rest of the way.
joinTree.Simplify();
splitTree.Simplify();
// Add trees to their views.
this.joinTreeView.AddTree(joinTree);
this.splitTreeView.AddTree(splitTree);
// Dispose of unneeded resources.
reader.Dispose();
myStream.Close();
}
/// <summary>
/// Add a new data file with formatting like the data file from Nathaniel.
/// </summary>
/// <param name="uselessParam1">required by C#</param>
/// <param name="uselessParam2">required by C#</param>
private void addNewNathanielDataFile(object uselessParam1, EventArgs uselessParam2)
{
// If opened properly, the file data will be stored here.
Stream myStream = null;
// This is a popup window that lets you pick a file to open.
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = "C:\\";
openFileDialog.Filter = "txt files (*.txt)|*.txt"; // Only look at text files.
// If the file doesn't get opened / read / added properly, display an error message.
if (openFileDialog.ShowDialog() == DialogResult.OK) {
try {
if ((myStream = openFileDialog.OpenFile()) != null) {
// Make a new StreamReader to read the text input file.
StreamReader reader = new StreamReader(myStream);
// The new file data object will be stored here if successful.
FileDataAbstract fileData;
fileData = new FileDataNathaniel(reader.ReadToEnd(), this.currentTimeStep);
// If there are already other data files, make sure they are compatible.
if (this.fileDataList.Count > 0)
{
FileDataAbstract tempData = this.fileDataList[0];
if (tempData.Xdim != fileData.Xdim || tempData.Ydim != fileData.Ydim || tempData.Zdim != fileData.Zdim)
{
throw new Exception("The file you are attempting to add has different dimensions than the previously added file(s). "
+ "If you would like to start over with new data, please clear the current data first.");
}
}
// If we've gotten this far without Exception, we can
// assume the file data will be added successfully.
this.currentTimeStep++;
this.fileDataList.Add(fileData);
// Take the file data and turn it into a list of grid points.
List<GridPoint> pointsList = fileData.GetSortedGridPointList();
// If there are already other file(s) in the program, clear out
// the current trees and add their data to the points list.
if (this.fileDataList.Count > 1)
{
// Clear the trees.
this.joinTreeView.ClearTrees();
this.splitTreeView.ClearTrees();
this.contourTreeView.ClearTrees();
// Add the data.
foreach (FileDataAbstract data in this.fileDataList)
{
pointsList = pointsList.Union(data.GetSortedGridPointList()).ToList();
pointsList.Sort(new Comparison<GridPoint>(GridPoint.Compare));
}
}
// Create the join tree and split tree from the file data.
JoinTree joinTree = new JoinTree(pointsList[0].value, pointsList.Last().value, pointsList);
SplitTree splitTree = new SplitTree(pointsList[0].value, pointsList.Last().value, pointsList);
// Simplify the trees, except for the others' critical points.
joinTree.SimplifyExceptFor(splitTree.GetCritical());
splitTree.SimplifyExceptFor(joinTree.GetCritical());
// Make the contour tree.
ContourTree contourTree = new ContourTree(joinTree, splitTree);
this.contourTreeView.AddTree(contourTree);
this.topology.SetTree(contourTree);
this.topology.AddTimeStep();
// Simplify trees the rest of the way.
joinTree.Simplify();
splitTree.Simplify();
// Add trees to their views.
this.joinTreeView.AddTree(joinTree);
this.splitTreeView.AddTree(splitTree);
// Dispose of unneeded resources.
reader.Dispose();
myStream.Close();
}
}
catch (Exception ex) {
MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message); }
}
}