# TIP_SCAN

Parameters needed to set up a Tip Scan. Needs external definition of tip induced field. [Edit on GitHub]

## Keywords

- SECTION_PARAMETERS

- REFERENCE_POINT

- SCAN_DIRECTION

- SCAN_POINTS

- SCAN_STEP

- TIP_FILENAME

## Keyword descriptions

SECTION_PARAMETERS: logical = F

  Lone keyword: `T`

  Controls the activation of the Tip Scan procedure [Edit on GitHub]

REFERENCE_POINT: real[3] = 0.00000000E+000 0.00000000E+000 0.00000000E+000 [angstrom]

  Usage: REFERENCE_POINT 0.0 0.0 1.0

  The reference point to define the absolute position of the scan. [Edit on GitHub]

SCAN_DIRECTION: enum = XY

  Usage: SCAN_DIRECTION XY

  Valid values:

  - `X`

  - `Y`

  - `Z`

  - `XY`

  - `XZ`

  - `YZ`

  - `XYZ`

  Defines scan direction and scan type(line, plane). [Edit on GitHub]

SCAN_POINTS: integer[ ]

  Usage: SCAN_POINTS 20 20

  Number of points calculated for each scan direction. [Edit on GitHub]

SCAN_STEP: real[ ] = [angstrom]

  Usage: SCAN_STEP 0.01 0.01

  Step size for each scan direction. [Edit on GitHub]

TIP_FILENAME: string

  Usage: TIP_FILENAME <filename>

  Filename of tip potential defined in cube file format. [Edit on GitHub]