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  _____     _____     ____       ___    __    __  
 / ____||  |  ___||  |  _ \\    / _ \\  \ \\ / // 
/ //---`'  | ||__    | |_| ||  / //\ \\  \ \/ //  
\ \\___    | ||__    | .  //  |  ___  ||  \  //   
 \_____||  |_____||  |_|\_\\  |_||  |_||   \//    
  `----`   `-----`   `-` --`  `-`   `-`     `

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Text this: Determination of hot-wire position from a solid wall in an opaque channel