private void LoadRegionAround(DataPoint p)
{
p.GetComponent<Renderer>().enabled = true;
var maxRows = _generatedObjects.GetLength(0) - 1;
var maxCols = _generatedObjects.GetLength(1) - 1;
var startRow = Mathf.Max(p.RowIndex - LoadRegionRadius, 0);
var endRow = Mathf.Min(p.RowIndex + LoadRegionRadius, maxRows);
var startCol = Mathf.Max(p.ColumnIndex - LoadRegionRadius, 0);
var endCol = Mathf.Min(p.ColumnIndex + LoadRegionRadius, maxCols);
for (int row = startRow; row <= endRow; row++)
{
for (int col = startCol; col <= endCol; col++)
{
if (row == p.RowIndex && col == p.ColumnIndex)
{
continue;
}
if (_generatedObjects[row, col] == null)
{
var newPoint = Heatmap.GenerateDataPoint(row, col);
newPoint.GetComponent<Renderer>().enabled = false;
_generatedObjects[row, col] = newPoint;
}
}
}
}
private void UnloadRegionAround(DataPoint p)
{
p.GetComponent<Renderer>().enabled = false;
var maxRows = _generatedObjects.GetLength(0) - 1;
var maxCols = _generatedObjects.GetLength(1) - 1;
// Note: the surrounding datapoints should always be active, so that panning
// always loads data if user pans model completely outside
// -> max(1, ...); min(max - 1, ...) instead of 0
var startRow = Mathf.Max(p.RowIndex - LoadRegionRadius, 1);
var endRow = Mathf.Min(p.RowIndex + LoadRegionRadius, maxRows - 1);
var startCol = Mathf.Max(p.ColumnIndex - LoadRegionRadius, 1);
var endCol = Mathf.Min(p.ColumnIndex + LoadRegionRadius, maxCols - 1);
for (int row = startRow; row <= endRow; row++)
{
for (int col = startCol; col <= endCol; col++)
{
if (row == p.RowIndex && col == p.ColumnIndex)
{
continue;
}
var oldPoint = _generatedObjects[row, col];
if (oldPoint != null && !(oldPoint.GetComponent<Renderer>().isVisible))
{
_generatedObjects[row, col] = null;
Destroy(oldPoint);
}
}
}
}