# Field Symbols Symbols of the Field. The formalized behavior references a variety of input and output symbols, which can stand for variables or functions of the agent's software. Constants are constant decimal values. ## Input Symbols
Name | Type | Measure | Description
field.opponent-groundline.x | decimal | mm | x position of opponent groundline
field.own-groundline.x | decimal | mm | x position of own groundline
field.opponent-penalty-area.x | decimal | mm | x position of opponent penalty area
field.own-penalty-area.x | decimal | mm | x position of own penalty area
field.opponent-goal.x | decimal | mm | x position of the opponent goal back
field.own-goal.x | decimal | mm | x position of own goal back
field.left-penalty-area.y | decimal | mm | y position of left penalty area line
field.right-penalty-area.y | decimal | mm | y position of right penalty area line
field.left-sideline.y | decimal | mm | y position to left sideline
field.right-sideline.y | decimal | mm | y position to right sideline
field.left-goal.y | decimal | mm | y position to left goal
field.right-goal.y | decimal | mm | y position to right goal
field.left-throw-in-points.y | decimal | mm | y position of all throw-in points on the left side
field.right-throw-in-points.y | decimal | mm | y position of all throw-in points on the right side
field.opponent-half-throw-in-points.x | decimal | mm | x position of all throw-in points in opponent half
field.own-half-throw-in-points.x | decimal | mm | x position of all throw-in points in own half
field.center-line-throw-in-points.x | decimal | mm | x position of all throw-in points on center line