public override bool Get(int docId)
{
float docX = m_xvals.Get(docId);
float docY = m_yvals.Get(docId);
float docZ = m_zvals.Get(docId);
return(InCircle(docX, docY, docZ, m_targetX, m_targetY, m_targetZ, m_radius));
}
public sealed override int NextDoc()
{
float x = m_targetX;
float xu = x + m_delta;
float xl = x - m_delta;
float y = m_targetY;
float yu = y + m_delta;
float yl = y - m_delta;
float z = m_targetZ;
float zu = z + m_delta;
float zl = z - m_delta;
int docid = m_doc;
while (++docid < m_maxDoc)
{
float docX = m_xvals.Get(docid);
if (docX > xu || docX < xl)
{
continue;
}
float docY = m_yvals.Get(docid);
if (docY > yu || docY < yl)
{
continue;
}
float docZ = m_zvals.Get(docid);
if (docZ > zu || docZ < zl)
{
continue;
}
if (GeoFacetFilter.InCircle(docX, docY, docZ, m_targetX, m_targetY, m_targetZ, m_radius))
{
m_doc = docid;
return(m_doc);
}
}
m_doc = DocIdSetIterator.NO_MORE_DOCS;
return(m_doc);
}
public override string[] GetFieldValues(BoboSegmentReader reader, int id)
{
GeoFacetData dataCache = GetFacetData <GeoFacetData>(reader);
BigSingleArray xvals = dataCache.xValArray;
BigSingleArray yvals = dataCache.yValArray;
BigSingleArray zvals = dataCache.zValArray;
float xvalue = xvals.Get(id);
float yvalue = yvals.Get(id);
float zvalue = zvals.Get(id);
float lat = GeoMatchUtil.GetMatchLatDegreesFromXYZCoords(xvalue, yvalue, zvalue);
float lon = GeoMatchUtil.GetMatchLonDegreesFromXYZCoords(xvalue, yvalue, zvalue);
string[] fieldValues = new string[2];
fieldValues[0] = Convert.ToString(lat);
fieldValues[1] = Convert.ToString(lon);
return(fieldValues);
}
/// <summary>
///
/// </summary>
/// <param name="docid">The docid for which the facet counts are to be calculated</param>
public virtual void Collect(int docid)
{
float docX = m_xvals.Get(docid);
float docY = m_yvals.Get(docid);
float docZ = m_zvals.Get(docid);
float radius, targetX, targetY, targetZ, delta;
float xu, xl, yu, yl, zu, zl;
int countIndex = -1;
foreach (GeoRange range in m_ranges)
{
// the countIndex for the count array should increment with the range index of the _ranges array
countIndex++;
if (m_miles)
{
radius = GeoMatchUtil.GetMilesRadiusCosine(range.Rad);
}
else
{
radius = GeoMatchUtil.GetKMRadiusCosine(range.Rad);
}
float[] coords = GeoMatchUtil.GeoMatchCoordsFromDegrees(range.Lat, range.Lon);
targetX = coords[0];
targetY = coords[1];
targetZ = coords[2];
if (m_miles)
{
delta = (float)(range.Rad / GeoMatchUtil.EARTH_RADIUS_MILES);
}
else
{
delta = (float)(range.Rad / GeoMatchUtil.EARTH_RADIUS_KM);
}
xu = targetX + delta;
xl = targetX - delta;
// try to see if the range checks can short circuit the actual inCircle check
if (docX > xu || docX < xl)
{
continue;
}
yu = targetY + delta;
yl = targetY - delta;
if (docY > yu || docY < yl)
{
continue;
}
zu = targetZ + delta;
zl = targetZ - delta;
if (docZ > zu || docZ < zl)
{
continue;
}
if (GeoFacetFilter.InCircle(docX, docY, docZ, targetX, targetY, targetZ, radius))
{
// if the lat, lon values of this docid match the current user-specified range, then increment the
// appropriate count[] value
m_count.Add(countIndex, m_count.Get(countIndex) + 1);
// do not break here, since one document could lie in multiple user-specified ranges
}
}
}