/** Convert a string to a double with a given unit
@return 1 on success, 0 on failure
**/
extern "C" int convert_unit_double(char *buffer,char *unit, double *data)
{
char *from = strchr(buffer,' ');
*data = atof(buffer);
if (from==NULL)
return 1; /* no conversion needed */
/* skip white space in from of unit */
while (isspace(*from)) from++;
return unit_convert(from,unit,data);
}
void CostCalculator::addObstacleCostPenalty( LabelPosition* lp, PointSet* feat )
{
int n = 0;
double dist;
double distlabel = lp->feature->getLabelDistance();
#if 0
unit_convert( double( lp->feature->distlabel ),
pal::PIXEL,
pal->map_unit,
pal->dpi, scale, 1 );
#endif
switch ( feat->getGeosType() )
{
case GEOS_POINT:
dist = lp->getDistanceToPoint( feat->x[0], feat->y[0] );
if ( dist < 0 )
n = 2;
else if ( dist < distlabel )
n = 1;
else
n = 0;
break;
case GEOS_LINESTRING:
// Is one of label's borders crossing the line ?
n = ( lp->isBorderCrossingLine( feat ) ? 1 : 0 );
break;
case GEOS_POLYGON:
n = lp->getNumPointsInPolygon( feat->getNumPoints(), feat->x, feat->y );
break;
}
// label cost is penalized
lp->setCost( lp->getCost() + double( n ) );
}
double operator()(const double value) const
{ return unit_convert (from, to, value); }
