protected static function applyWKTUtmFromTmerc() {
		// 'UTM Zone 15',
		//  WGS_1984_UTM_Zone_17N,
		// 'Lao_1997_UTM_48N'
		// 'UTM Zone 13, Southern Hemisphere'
		// 'Hito XVIII 1963 / UTM zone 19S'
		// 'ETRS89 / ETRS-TM26' EPSG:3038 (UTM 26)
		$srsCode = strtolower(str_replace('_', ' ', $wktParams->srsCode));
		if (strpos($srsCode, "utm zone ") !== false || strpos($srsCode, "lao 1997 utm ") !== false || strpos($srsCode, "etrs-tm") !== false) {

			$srsCode = str_replace('-tm', '-tm ', $srsCode); //'ETRS89 / ETRS-TM26' ie: EPSG:3038 (UTM 26)

			$zoneStr = substr($srsCode, strrpos($srsCode, ' ') + 1);
			$zlen = strlen($zoneStr);
			if ($zoneStr{$zlen - 1} == 'n') {
				$zoneStr = substr($zoneStr, 0, -1);
			} elseif ($zoneStr{$zlen - 1} == 's') {
				// EPSG:2084 has Hito XVIII 1963 / UTM zone 19S
				$zoneStr = substr($zoneStr, 0, -1);
				$wktParams->utmSouth = true;
			}
			$wktParams->zone = intval($zoneStr, 10);
			$wktParams->projName = "utm";
			if (!isset($wktParams->utmSouth)) {
				$wktParams->utmSouth = false;
			}
		}
	}