public void SelectPoint(TransferFunctionControlPointUI _controlPoint)
{
this.DeselectPoint();
m_SelectedPoint = _controlPoint;
m_ColorPicker.gameObject.SetActive(true);
m_ColorPicker.CurrentColor = m_SelectedPoint.Color;
}
private void DeselectPoint()
{
if (m_SelectedPoint)
{
m_SelectedPoint.Deselect();
m_SelectedPoint = null;
m_ColorPicker.gameObject.SetActive(false);
}
}
public void DeletePoint(TransferFunctionControlPointUI _controlPoint)
{
// If we are deleting the currently selected point, deselect it first
if (m_SelectedPoint == _controlPoint)
{
this.DeselectPoint();
}
Log.Info(this, "Delete point");
Destroy(_controlPoint.gameObject);
m_ControlPoints.Remove(_controlPoint);
this.Redraw();
}
private void CreatePoint(Vector2 _pointInBox, Color _color, bool _select)
{
TransferFunctionControlPointUI point = Instantiate(m_ControlPointPrefab, transform);
point.GetComponent <RectTransform>().anchoredPosition = _pointInBox;
point.name = $"Transferfunction_Control_Point";
point.Init(this, _color, _select);
m_ControlPoints.Add(point);
this.Redraw();
if (_select)
{
this.SelectPoint(point);
}
}
private TransferFunction GenerateTransferFunction()
{
TransferFunction function = new TransferFunction();
if (m_ControlPoints.Count > 0)
{
Vector2 size = m_RectTransform.sizeDelta;
for (int i = 0; i < m_ControlPoints.Count; i++)
{
TransferFunctionControlPointUI controlPoint = m_ControlPoints[i];
Transform transform = controlPoint.transform;
// We need to normalize the x and y position
float data = (transform.localPosition.x + size.x / 2) / size.x;
float alpha = (transform.localPosition.y + size.y / 2) / size.y;
function.AddControlPoint(new TFColourControlPoint(data, controlPoint.Color));
function.AddControlPoint(new TFAlphaControlPoint(data, alpha));
// We create additional edge points for the first and last control point
if (i == 0)
{
function.AddControlPoint(new TFColourControlPoint(0, controlPoint.Color));
function.AddControlPoint(new TFAlphaControlPoint(0, alpha));
}
if (i == m_ControlPoints.Count - 1)
{
function.AddControlPoint(new TFColourControlPoint(1, controlPoint.Color));
function.AddControlPoint(new TFAlphaControlPoint(1, alpha));
}
}
}
else
{
function.AddControlPoint(new TFColourControlPoint(0, Color.white));
function.AddControlPoint(new TFAlphaControlPoint(0, 1));
function.AddControlPoint(new TFColourControlPoint(1, Color.white));
function.AddControlPoint(new TFAlphaControlPoint(1, 1));
}
function.GenerateTexture();
return(function);
}
