int CRF_TextPage::GetIndexAtPos(CPDF_Point point, FX_FLOAT xTorelance, FX_FLOAT yTorelance) const
{
int index = -1, i = 0, j = 0;
FPDF_CHAR_INFO info;
CFX_FloatRect rectTmp;
FX_FLOAT MinDistance = 1000, DistanceTmp = 0;
FX_FLOAT rect_bottom = point.x - xTorelance;
CFX_FloatRect TorelanceRect(rect_bottom <= 0 ? 0 : rect_bottom, point.y - yTorelance, point.x + xTorelance, point.y + yTorelance);
int count = CountChars();
for(i = 0; i < count; i++) {
GetCharInfo(i, info);
rectTmp = info.m_CharBox;
if(rectTmp.Contains(point.x, point.y)) {
index = i;
break;
} else if(_IsIntersect(rectTmp, TorelanceRect)) {
DistanceTmp = _GetDistance(rectTmp, point);
if(DistanceTmp < MinDistance) {
MinDistance = DistanceTmp;
index = i;
}
}
}
return index;
}
bool ZQuadTree::_BuildQuadTree(CGeoMapData &pHeightMap, Point &bottomLeft)
{
const unsigned char *buffer = pHeightMap.GetGeoBuffer();
int nXSize = pHeightMap.GetXSize();
int nBands = pHeightMap.GetNBands();
m_fRadius = _GetDistance(Vertex (bottomLeft.x + m_nCorner[CORNER_TL].x, bottomLeft.y + m_nCorner[CORNER_TL].y, 0),
Vertex(bottomLeft.x + m_nCorner[CORNER_BR].x, bottomLeft.y + m_nCorner[CORNER_BR].y, 0)) / 2.0f;
if(_SubDivide())
{
m_pChild[CORNER_TL] -> _BuildQuadTree(pHeightMap, bottomLeft);
m_pChild[CORNER_TR] -> _BuildQuadTree(pHeightMap, bottomLeft);
m_pChild[CORNER_BL] -> _BuildQuadTree(pHeightMap, bottomLeft);
m_pChild[CORNER_BR] -> _BuildQuadTree(pHeightMap, bottomLeft);
}
return true;
}
int ZQuadTree::_GetLODLevel(CGeoMapData &pHeightMap, Point &bottomLeft, Vertex &pCamera, float fLODRatio)
{
float d = _GetDistance(Vertex(bottomLeft.x + m_nCenter.x,bottomLeft.y + m_nCenter.y, 0),pCamera);
return MAX((int) (d * fLODRatio), MIN_SIZE);
}