// zoom in on a parent level
private void ZoomIn(object node)
{
_zoomedIn = true;
// get parent node
string parentName = (node as TreemapNode).Hierarchy;
TreemapNode parentNode = _hierarchicalData.First(s => s.NodeName == parentName);
hierarchyLevelTextBlock.Text = String.Format("Showing: {0}", parentName);
// clear canvas and row collections ready for drawing the zoomed in view
canvas.Children.Clear();
_rows.Clear();
// reset the drawing area bounds
_drawingArea.Height = canvas.ActualHeight;
_drawingArea.Width = canvas.ActualWidth;
// reset the offsets as we are starting from x0y0
_offsetX = 0;
_offsetY = 0;
// update the normalised values and re-squarify/redraw
ZoomNormalisedValues(parentNode.Children);
Squarify(parentNode.Children, new List <TreemapNode>());
DrawZoomedInView();
}
// Method that normalises the areas to the screen space
private void NormaliseValues()
{
double total = 0;
double area = 0;
double screenScaleRatio = 0;
foreach (string[] element in _datasetModel.Dataset)
{
if (!double.TryParse(element[_areasIndex], out area))
{
// Output error
}
else
{
total += area;
}
}
// Calculate the screen scale ratio
screenScaleRatio = _drawingArea.Width * _drawingArea.Height / total;
foreach (string[] element in _datasetModel.Dataset)
{
double initialValue = double.Parse(element[_areasIndex]);
double scaledValue = initialValue * screenScaleRatio;
TreemapNode node = new TreemapNode();
node.NormalisedArea = scaledValue;
node.Name = element[_idIndex];
node.Value = element[_areasIndex];
if (_descriptionIndex >= 0)
{
node.Description = element[_descriptionIndex];
}
node.Hierarchy = element[_hierarchyIndex];
node.ColourValue = element[_colourIndex];
_hierarchicalData.Add(node);
}
CreateHierarchy();
AggregateHierarchyValues();
SortValues();
Squarify(_hierarchicalData, new List <TreemapNode>());
// squarify children
foreach (TreemapNode node in _hierarchicalData)
{
_offsetChildX = node.XPos;
_offsetChildY = node.YPos;
SquarifyChildren(node.Children, new List <TreemapNode>(), node.NodeWidth, node.NodeHeight);
}
DrawChildren();
Draw();
}
// Method that normalises the areas to the screen space
private void NormaliseValues()
{
double total = 0;
double area = 0;
double screenScaleRatio = 0;
foreach (string[] element in _datasetModel.Dataset)
{
if (!double.TryParse(element[_areasIndex], out area))
{
// Output error
}
else
{
total += area;
}
}
// Calculate the screen scale ratio
screenScaleRatio = _drawingArea.Width * _drawingArea.Height / total;
foreach (string[] element in _datasetModel.Dataset)
{
double initialValue = double.Parse(element[_areasIndex]);
double scaledValue = initialValue * screenScaleRatio;
TreemapNode node = new TreemapNode();
node.NormalisedArea = scaledValue;
node.NodeName = element[_idIndex];
node.Value = element[_areasIndex];
if (_descriptionIndex >= 0)
{
node.Description = element[_descriptionIndex];
}
node.ColourValue = element[_colourIndex];
_treemapNodes.Add(node);
}
SortValues();
Squarify(_treemapNodes, new List <TreemapNode>());
Draw();
}
public void AddNodeToRow(TreemapNode node)
{
_nodes.Add(node);
}
public void AddNodeToRow(TreemapNode node)
{
_nodes.Add(node);
}
// Method that normalises the areas to the screen space
private void NormaliseValues()
{
double total = 0;
double area = 0;
double screenScaleRatio = 0;
foreach (string[] element in _datasetModel.Dataset)
{
if (!double.TryParse(element[_areasIndex], out area))
{
// Output error
}
else
{
total += area;
}
}
// Calculate the screen scale ratio
screenScaleRatio = _drawingArea.Width * _drawingArea.Height / total;
foreach (string[] element in _datasetModel.Dataset)
{
double initialValue = double.Parse(element[_areasIndex]);
double scaledValue = initialValue * screenScaleRatio;
TreemapNode node = new TreemapNode();
node.NormalisedArea = scaledValue;
node.NodeName = element[_idIndex];
node.Value = element[_areasIndex];
if (_descriptionIndex >= 0)
{
node.Description = element[_descriptionIndex];
}
node.ColourValue = element[_colourIndex];
_treemapNodes.Add(node);
}
SortValues();
Squarify(_treemapNodes, new List<TreemapNode>());
Draw();
}
// Method that normalises the areas to the screen space
private void NormaliseValues()
{
double total = 0;
double area = 0;
double screenScaleRatio = 0;
foreach (string[] element in _datasetModel.Dataset)
{
if (!double.TryParse(element[_areasIndex], out area))
{
// Output error
}
else
{
total += area;
}
}
// Calculate the screen scale ratio
screenScaleRatio = _drawingArea.Width * _drawingArea.Height / total;
foreach (string[] element in _datasetModel.Dataset)
{
double initialValue = double.Parse(element[_areasIndex]);
double scaledValue = initialValue * screenScaleRatio;
TreemapNode node = new TreemapNode();
node.NormalisedArea = scaledValue;
node.Name = element[_idIndex];
node.Value = element[_areasIndex];
if (_descriptionIndex >= 0)
{
node.Description = element[_descriptionIndex];
}
node.Hierarchy = element[_hierarchyIndex];
node.ColourValue = element[_colourIndex];
_hierarchicalData.Add(node);
}
CreateHierarchy();
AggregateHierarchyValues();
SortValues();
Squarify(_hierarchicalData, new List<TreemapNode>());
// squarify children
foreach (TreemapNode node in _hierarchicalData)
{
_offsetChildX = node.XPos;
_offsetChildY = node.YPos;
SquarifyChildren(node.Children, new List<TreemapNode>(), node.NodeWidth, node.NodeHeight);
}
DrawChildren();
Draw();
}
