find_regions_with_attribute()

std::vector< Region > MayaFlux::Kakshya::find_regions_with_attribute	(	const RegionGroup &	group,
		const std::string &	key,
		const std::any &	value
	)

Find all regions in a RegionGroup with a specific attribute value.

Parameters

group	RegionGroup to search.
key	Attribute key.
value	Attribute value to match.

Returns

Vector of matching Regions.

Definition at line 31 of file RegionUtils.cpp.

{
    std::vector<Region> result;
    std::ranges::copy_if(group.regions, std::back_inserter(result),
        [&key, &value](const Region& region) {
            auto attr_it = region.attributes.find(key);
            if (attr_it != region.attributes.end()) {
                if (value.type() == typeid(std::string)) {
                    auto region_value = get_region_attribute<std::string>(region, key);
                    auto search_value = std::any_cast<std::string>(value);
                    return region_value.has_value() && *region_value == search_value;
                }
                if (value.type() == typeid(double)) {
                    auto region_value = get_region_attribute<double>(region, key);
                    auto search_value = std::any_cast<double>(value);
                    return region_value.has_value() && *region_value == search_value;
                }
                if (value.type() == typeid(int)) {
                    auto region_value = get_region_attribute<int>(region, key);
                    auto search_value = std::any_cast<int>(value);
                    return region_value.has_value() && *region_value == search_value;
                }
                // TODO: Add more types as needed
            }
            return false;
        });
    return result;
}

References MayaFlux::Kakshya::RegionGroup::regions.