Lines Matching +full:2 +full:- +full:dimensional

2 * is the definition of +/- values practical or counterintuitive?
13 that produce three-dimensional data in relation to the world where it is
37 reference. This means that the sensor may be flipped upside-down, left-right,
47 Device-to-world examples for some three-dimensional sensor types:
49 - Accelerometers have their world frame of reference toward the center of
55   9.81 m/s^2 upwards along the (z) axis, i.e. out of the screen when the device
57   as the gravity vector is projected 1:1 onto the sensors (z)-axis.
67      +--------+             +--------+
69      +--------+             +--------+
80      (---------)
81      !         !           y: -g
85      !         !  x: +g <- z: +g  -> x: -g
86      ! 1  2  3 !
90      (---------)
93 - Magnetometers (compasses) have their world frame of reference relative to the
94   geomagnetic field. The system orientation vis-a-vis the world is defined with
103      (---------)
109      ! 1  2  3 !  >
113      (---------)
129 - Gyroscopes detects the movement relative the device itself. The angular
134   counter-clockwise according to the right-hand rule.
137      (---------)     y > 0
138      !         !     v---\
141      !         !      <--\
143      ! 1  2  3 !       --/
147      (---------)
154 To achieve this, use the device tree property "mount-matrix" for the sensor.
159 multiplied by this matrix to give the proper vectors values in three-dimensional
185 mount-matrix = "1", "0", "0",
190 compensate by performing a -30 degrees rotation around the X axis:
192 mount-matrix = "1", "0", "0",
194                "0", "-0.5", "0.866";
197 upside-down:
199 mount-matrix = "0.998", "0.054", "0",
200                "-0.054", "0.998", "0",
203 ???: this does not match "180 degrees" - factors indicate ca. 3 degrees compensation