44.. meta ::
55 :description: This document defines the Field Coordinate System which can be used to specify position on the playing field.
66
7-
87Summary: The *FIRST * Tech Challenge Field Coordinate System is a Cartesian Coordinate System of three dimensions.
98The X and Y axes will refer to a position on the Field and the Z axis a height above the Field.
109
11- .. contents :: In This Article:
12- :local:
13- :depth: 1
14- :backlinks: none
15-
1610Scope
1711-----
1812
@@ -86,10 +80,10 @@ rotations are then counterclockwise and negative rotations clockwise.
8680
8781 Rotations about each axis.
8882
89- Imagine looking down the positive Z axis towards the origin.
90- This would be like standing in the middle of the Field
91- looking down at the intersection of the tiles in the very center of the Field.
92- A positive rotation about the Z axis is then counterclockwise.
83+ Imagine looking down the positive Z axis towards the origin.
84+ This would be like standing in the middle of the Field
85+ looking down at the intersection of the tiles in the very center of the Field.
86+ A positive rotation about the Z axis is then counterclockwise.
9387
9488Example: a robot spinning clockwise on the Field is making a negative rotation about the Z axis.
9589
@@ -107,13 +101,13 @@ Diamond Field
107101
108102 The *FIRST * RES-Q game Field with X, Y and Z axes shown.
109103
110- In a diamond Field configuration the two Alliance walls are adjacent.
111- The Field is rotated 45 degrees such that both Alliances face the audience.
112- From the audience perspective the Field forms a diamond shape.
113- The Red Wall will be on the right as seen from the audience,
114- and the blue wall will be on the left.
115- The Y axis points across the Field as seen from the Red Wall.
116- The X axis points to the blue wall.
104+ In a diamond Field configuration the two Alliance walls are adjacent.
105+ The Field is rotated 45 degrees such that both Alliances face the audience.
106+ From the audience perspective the Field forms a diamond shape.
107+ The Red Wall will be on the right as seen from the audience,
108+ and the blue wall will be on the left.
109+ The Y axis points across the Field as seen from the Red Wall.
110+ The X axis points to the blue wall.
117111
118112Square Field
119113^^^^^^^^^^^^
@@ -123,11 +117,11 @@ Square Field
123117
124118 The Cascade Effect game Field with X, Y and Z axes shown.
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126- In a square Field configuration the two Alliances face each other across the Field.
127- The Field is oriented such that the Red Wall is on the right as seen
128- from the audience, and the blue wall will be on the left.
129- The Y axis points across the Field from the Red Wall to the blue wall.
130- The X axis points away from the audience to the rear of the Field.
120+ In a square Field configuration the two Alliances face each other across the Field.
121+ The Field is oriented such that the Red Wall is on the right as seen
122+ from the audience, and the blue wall will be on the left.
123+ The Y axis points across the Field from the Red Wall to the blue wall.
124+ The X axis points away from the audience to the rear of the Field.
131125
132126.. note ::
133127 In both Field configurations the red Alliance is facing out along the positive Y axis,
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