/// <summary>
/// Test wether the mouse hits a plot item.
/// </summary>
/// <param name="layer">The layer in which this plot item is drawn into.</param>
/// <param name="hitpoint">The point where the mouse is pressed.</param>
/// <returns>Null if no hit, or a <see cref="IHitTestObject" /> if there was a hit.</returns>
public override IHitTestObject HitTest(IPlotArea layer, HitTestPointData hitpoint)
{
Processed3DPlotData pdata = _cachedPlotDataUsedForPainting;
if (null == pdata)
{
return(null);
}
var rangeList = pdata.RangeList;
var ptArray = pdata.PlotPointsInAbsoluteLayerCoordinates;
if (ptArray.Length < 2)
{
return(null);
}
var hitTransformation = hitpoint.HitTransformation;
int hitindex = -1;
var lineStart = hitTransformation.Transform(ptArray[0]).PointD2DWithoutZ;
for (int i = 1; i < ptArray.Length; i++)
{
var lineEnd = hitTransformation.Transform(ptArray[i]).PointD2DWithoutZ;
if (Math2D.IsPointIntoDistance(PointD2D.Empty, 1, lineStart, lineEnd))
{
hitindex = i;
break;
}
lineStart = lineEnd;
}
if (hitindex < 0)
{
return(null);
}
var outline = new PolylineObjectOutline(5, 5, ptArray, hitpoint.WorldTransformation);
return(new HitTestObject(outline, this, hitpoint.WorldTransformation));
}
/// <summary>
/// Test wether the mouse hits a plot item.
/// </summary>
/// <param name="layer">The layer in which this plot item is drawn into.</param>
/// <param name="hitpoint">The point where the mouse is pressed.</param>
/// <returns>Null if no hit, or a <see cref="IHitTestObject" /> if there was a hit.</returns>
public override IHitTestObject HitTest(IPlotArea layer, HitTestPointData hitpoint)
{
Processed3DPlotData pdata = _cachedPlotDataUsedForPainting;
if (null == pdata)
return null;
var rangeList = pdata.RangeList;
var ptArray = pdata.PlotPointsInAbsoluteLayerCoordinates;
if (ptArray.Length < 2)
return null;
var hitTransformation = hitpoint.HitTransformation;
int hitindex = -1;
var lineStart = hitTransformation.Transform(ptArray[0]).PointD2DWithoutZ;
for (int i = 1; i < ptArray.Length; i++)
{
var lineEnd = hitTransformation.Transform(ptArray[i]).PointD2DWithoutZ;
if (Math2D.IsPointIntoDistance(PointD2D.Empty, 1, lineStart, lineEnd))
{
hitindex = i;
break;
}
lineStart = lineEnd;
}
if (hitindex < 0)
return null;
var outline = new PolylineObjectOutline(5, 5, ptArray, hitpoint.WorldTransformation);
return new HitTestObject(outline, this, hitpoint.WorldTransformation);
}