# Station Lines 0.1 documentation

## Station Lines

# Concepts

The plugin creates station lines with some parameters

# Stations choices

Stations can be at vertices and/or at equally spaced distance.

If both are checked, stations are ordered along the path of the polyline.

## Distance

Input :

Field: | Field with a numerical value (Int or Float)
Value: | A fixed numercial value

# Side

Side is:

- Left: station lines are on left side

- Right: station lines are on right side

- Both: station lines are on left and right side

Input:

Field: | String value with:

- 0 = Right
- 1 = Left
- 2 = Both
- Right (and all variants: RIGHT, RigHt, ...)
- Left (and all variants: LEFT, LEfT, ...)
- Both (and all variants: BOTH, BotH, ...)

Value: | A fixed string value

# Length

A negative value provide the opposite side. For example, Right side with a negative value is like Left side with a positive value.

Input:

Field: | Field with a numerical value (Int or Float)
Value: | A fixed numercial value

# Angle

Angles are in degree and are normalized.

Examples by side (Red line is a polyline):

## Right

## Left

## Both

Input:

Field: | Field with a numerical value (Int or Float. Can be negative)
Value: | A fixed numercial value between 0 and 360

# Output

Station lines are created on a single layer with these attributes:

- FID: ID of the original linestring
- SL_ID: ID of the station lines. Each SL have a unique ID
- SL_SEGMENT: ID of the segment of the linestring
- SL_ANGLE: Angle of the SL
- SL_LENGTH: Length of the SL
- SL_ORIENT: Orientation/Side of the SL