/// <summary>
/// Trims a rect in axis units into the visible portion of it in axis units. returns false if the parameter rect is completely out of view , true otherwise
/// </summary>
/// <param name="rect"></param>
/// <param name="trimmed"></param>
/// <returns></returns>
public bool TrimRect(DoubleRect rect, out DoubleRect trimmed)
{
DoubleVector3 min = rect.min;
DoubleVector3 max = rect.max;
trimmed = new DoubleRect();
min = PointToNormalized(min.x, min.y);
max = PointToNormalized(max.x, max.y);
if (min.x > 1f || min.y > 1f)
{
return(false);
}
if (max.x < 0f || max.y < 0f)
{
return(false);
}
double minX = ChartCommon.Clamp(Math.Min(min.x, max.x));
double minY = ChartCommon.Clamp(Math.Min(min.y, max.y));
double maxX = ChartCommon.Clamp(Math.Max(min.x, max.x));
double maxY = ChartCommon.Clamp(Math.Max(min.y, max.y));
min = NormalizedToPoint(minX, minY);
max = NormalizedToPoint(maxX, maxY);
trimmed = new DoubleRect(min.x, min.y, max.x - min.x, max.y - min.y);
return(true);
}
/// <summary>
/// returns true if the axis unity rect is visible on the chart, even if it is only partially visible. false otherwise
/// </summary>
/// <param name="rect"></param>
/// <returns></returns>
public bool IsRectVisible(DoubleRect rect)
{
DoubleVector3 min = rect.min;
DoubleVector3 max = rect.max;
min = PointToNormalized(min.x, min.y);
max = PointToNormalized(max.x, max.y);
if (min.x > 1f || min.y > 1f)
{
return(false);
}
if (max.x < 0f || max.y < 0f)
{
return(false);
}
return(true);
}
/// <summary>
/// tranforms an axis unit rect into a recttransform. The rect transform must have a parent assigned to it. Also the chart and the rectTransform must share a common ancestor canvas
/// </summary>
/// <param name="assignTo">The rect tranform to which the result is assigned to</param>
/// <param name="rect"></param>
/// <param name="catgeory"></param>
/// <returns></returns>
public bool RectToCanvas(RectTransform assignTo, DoubleRect rect, string catgeory = null)
{
DoubleVector3 min = rect.min;
DoubleVector3 max = rect.max;
Vector3 worldMin, worldMax;
if (PointToWorldSpace(out worldMin, min.x, min.y, catgeory) == false)
{
return(false);
}
if (PointToWorldSpace(out worldMax, max.x, max.y, catgeory) == false)
{
return(false);
}
Transform parent = assignTo.parent;
if (parent == null)
{
return(false);
}
worldMin = parent.transform.InverseTransformPoint(worldMin);
worldMax = parent.transform.InverseTransformPoint(worldMax);
float minX = Math.Min(worldMin.x, worldMax.x);
float minY = Math.Min(worldMin.y, worldMax.y);
float sizeX = Math.Max(worldMin.x, worldMax.x) - minX;
float sizeY = Math.Max(worldMin.y, worldMax.y) - minY;
assignTo.anchorMin = new Vector2(0.5f, 0.5f);
assignTo.anchorMax = new Vector2(0.5f, 0.5f);
assignTo.pivot = new Vector2(0f, 0f);
assignTo.anchoredPosition = new Vector2(minX, minY);
assignTo.sizeDelta = new Vector2(sizeX, sizeY);
return(true);
}
