# RAMP_ENV

Section can be repeated.

Parameters for an trapeziodal envelop [Edit on GitHub]

## Keywords

- END_STEP_IN

- END_STEP_OUT

- START_STEP_IN

- START_STEP_OUT

## Keyword descriptions

END_STEP_IN: integer = -1

  Usage: END_STEP_IN 2

  Step when the field reaches the full strength [Edit on GitHub]

END_STEP_OUT: integer = -1

  Usage: END_STEP_OUT 2

  Step when the field disappears [Edit on GitHub]

START_STEP_IN: integer = 0

  Usage: START_STEP_IN 0

  Step when the electric field starts to be applied [Edit on GitHub]

START_STEP_OUT: integer = 0

  Usage: START_STEP_OUT 0

  Step when the field starts to vanish [Edit on GitHub]