access access append append_bintable append_bintable append_bintable_header append_image append_image_header append_null_bintable append_null_image appendBintable appendBintableHeader appendImage appendImageHeader appendNullBintable appendNullImage close filter find hdu_count hduCount MefFile operator[] primary read_hdu_names read_hdu_names_versions readHduNames readHduNamesVersions remove strategy strategy strategy ~MefFile

append_null_image() const ImageHdu & append_null_image ( const std::string &  name, const RecordSeq &  records, const Position< N > &  shape  ) Append a new image extension and fill the data unit with null values. Template Parameters T The value type N The dimension parameter The null value is defined as follows: For integer images, if the BLANK record is among the provided ones, then its value is used unscaled (BZERO is not taken into account); Otherwise, the data unit is filled with zeros. For real images, the data unit is filled with NaNs. Example f.append_null_image<char, 3>("CUBE", {{"BLANK", 255}}, {28, 06, 1989});