// IndexQuery queries the index for intersections with geom.
func (this *Geos) IndexQuery(index *Index, geom *Geom) []IndexGeom {
index.mu.Lock()
defer index.mu.Unlock()
var num C.uint32_t
r := C.IndexQuery(this.v, index.v, geom.v, &num)
if r == nil {
return nil
}
hits := (*[2 << 16]C.uint32_t)(unsafe.Pointer(r))[:num]
defer C.free(unsafe.Pointer(r))
var geoms []IndexGeom
for _, idx := range hits {
geoms = append(geoms, index.geoms[idx])
}
return geoms
}
// IndexQuery queries the index for intersections with geom.
func (this *Geos) IndexQuery(index *Index, geom *Geom) []int {
index.mu.Lock()
defer index.mu.Unlock()
var num C.uint32_t
r := C.IndexQuery(this.v, index.v, geom.v, &num)
if r == nil {
return nil
}
hits := (*[2 << 16]C.uint32_t)(unsafe.Pointer(r))[:num]
defer C.free(unsafe.Pointer(r))
indices := make([]int, len(hits))
for i := range hits {
indices[i] = int(hits[i])
}
return indices
}
