This is a Perl script that creates an STR file for Surpac. It uses several modules such as Lava, Macro, Vulcan, and List::MoreUtils. The script declares and initializes several variables, including @xArray, @yArray, @zArray, $xLast, $yLast, $zLast, $polyID, $targetRL, $segmentNumber, $fileHandler, $doLevel, $doClose, $toPoints, $layerName, $objectName, $fileName, $filepath, $codetext1, $codetext2,...