public override FilterValueSetParam GetFilterValue(
MatchedEventMap matchedEvents,
ExprEvaluatorContext exprEvaluatorContext,
StatementContextFilterEvalEnv filterEvalEnv)
{
var x = XEval.GetFilterValueDouble(matchedEvents, exprEvaluatorContext, filterEvalEnv);
var y = YEval.GetFilterValueDouble(matchedEvents, exprEvaluatorContext, filterEvalEnv);
var width = WidthEval.GetFilterValueDouble(matchedEvents, exprEvaluatorContext, filterEvalEnv);
var height = HeightEval.GetFilterValueDouble(matchedEvents, exprEvaluatorContext, filterEvalEnv);
var rectangle = new XYWHRectangle(x, y, width, height);
var lookupable = lkupable.Make(matchedEvents, exprEvaluatorContext);
return new FilterValueSetParamImpl(lookupable, FilterOperator, rectangle);
}
public IList <SupportRectangleWithId> Generate(
Random random,
int numPoints,
double x,
double y,
double width,
double height)
{
IDictionary <XYWHRectangle, SupportRectangleWithId> rectangles = new Dictionary <XYWHRectangle, SupportRectangleWithId>();
var pointNum = 0;
while (rectangles.Count < numPoints)
{
double rx;
double ry;
double rwidth;
double rheight;
while (true)
{
rx = x + width * random.NextDouble() - 5;
ry = y + height * random.NextDouble() - 5;
rwidth = width * random.NextDouble();
rheight = height * random.NextDouble();
if (BoundingBox.IntersectsBoxIncludingEnd(x, y, x + width, y + height, rx, ry, rwidth, rheight))
{
break;
}
}
var rectangle = new XYWHRectangle(rx, ry, rwidth, rheight);
if (rectangles.ContainsKey(rectangle))
{
continue;
}
rectangles.Put(rectangle, new SupportRectangleWithId("P" + pointNum, rectangle.X, rectangle.Y, rectangle.W, rectangle.H));
pointNum++;
}
return(new List <SupportRectangleWithId>(rectangles.Values));
}
protected bool Equals(XYWHRectangle other)
{
return X.Equals(other.X) && Y.Equals(other.Y) && W.Equals(other.W) && H.Equals(other.H);
}