Positions blocks

Position blocks allow to operate with position variables.

Note

In 1x PDI Builder, positio variables are also refered to as Features.

Constant Position

Constant Position block defines a position on Earth using Latitude, Longitude and WGS84 Height.

../../../_images/constant.png

Constant Position block

  • Output

    feature Pin 0: Output of the configured position.

  • Configuration menu:

    ../../../_images/constant_configuration.png

    Constant Position block configuration

    The following parameters must be configured to define the desired absolute position:

    • The coordinates can be set in UTM, MGRS (Military Grid Reference System), Decimal Degrees or Degress º ‘ ”.

    • They are indicated through the latitude, longitude and altitude.

    • WGS84: The first time, the altitude must be defined with respect to the ellipsoid, WGS84. After this, MSL and AGL values will be calculated automatically and the user will also be able to define the altitude with respecto to the sea level, MSL.

Move

Move block outputs the position which is the result of moving the input position with the displacement of the input vector.

../../../_images/move.png

Move block

  • Inputs

    feature Pin 0: Input position.

    real Pin 1: Input displacement vector in NED frame. It must be a vector of 3 elements, i.e. a 3x1 vector.

  • Output

    feature Pin 0: Output position.

Relative Vector

Relative Vector block calculates the relative vector in NED frame from the two input positions.

../../../_images/relative_vector.png

Relative Vector block

  • Inputs

    feature Pin 0: First position.

    feature Pin 1: Second position.

  • Output

    real Pin 0: Distance vector from the first position to the second position.

Read Feature

Read Feature block reads a position from a FID (feature) variable.

../../../_images/read_position.png

Read Feature block

  • Output

    feature Pin 0: Position to read.

  • Configuration menu:

    ../../../_images/read_position_configuration.png

    Read Feature block configuration

    Users must select the feature variable where the position is stored.

Write Feature

Write Feature block writes a position to a FID variable.

../../../_images/write_position.png

Write Feature block

  • Input

    feature Pin 0: Position to write.

  • Configuration menu:

    ../../../_images/write_position_configuration.png

    Write Feature block configuration

    Users must select the feature variable where the position is to be stored.