void makePolyWithHole(Geography &geo) {
geo.addEmptyRing()
<< GeographyPoint(0, 0)
<< GeographyPoint(1, 0)
<< GeographyPoint(1, 1)
<< GeographyPoint(0, 1)
<< GeographyPoint(0, 0);
geo.addEmptyRing()
<< GeographyPoint(0.1, 0.1)
<< GeographyPoint(0.1, 0.9)
<< GeographyPoint(0.9, 0.9)
<< GeographyPoint(0.9, 0.1)
<< GeographyPoint(0.1, 0.1);
}
/**
* Return a point which is this point translated by the
* given offset.
*
* This is mostly used in testing. We want to move points slightly,
* so that we can test approximate equality of polygons.
*/
GeographyPoint translate(const GeographyPoint &offset) {
return GeographyPoint(getLongitude() + offset.getLongitude(),
getLatitude() + offset.getLatitude());
}
