====== Add chainage markers ======

**Chainage markers (PK)** allow the position of activities
along the project to be identified in the Time-Location view.

They are one of the key elements for reading a
Time-Location schedule, as they allow the location of the works
to be quickly identified.

Chainage markers are added through a **distance line of type Text**
in the **Distance axis** tab.

{{:en:time_distance:2026-03-12_21h29_40.png?600|}}

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===== Choose the displayed value =====

The **Displayed value** field allows you to define the type of marker
that will appear on the distance axis.

Several formats can be used, for example:

  * **meters**
  * **hectometers**
  * **kilometers**
  * **kilometric format (km+000)**

The choice of format generally depends on project practices
and the desired level of precision.

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===== Define the display interval =====

The **Interval every** parameter defines the frequency
of marker display.

For example:

  * **1 km** to display a marker every kilometre
  * **500 m** for a more detailed marker spacing
  * **100 m** for a very precise display

A smaller interval increases precision but may also
visually clutter the schedule.

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===== Define the origin of the markers =====

The **From** field allows you to define the origin of the first marker
displayed on the distance axis.

For example:

  * **0 km** to start at the beginning of the project
  * **1 km** to offset the markers
  * a **specific chainage** if the project does not start at zero

This allows the display to be aligned with the **actual
project chainage reference system**.

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===== Text formatting =====

Formatting options allow the appearance
of the chainage markers to be adjusted.

You can define:

  * the **font**
  * the **text size**
  * the **colour**
  * the **line height**

These parameters ensure good readability of the
markers in the Time-Location view.

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===== Text position =====

The **Text position** parameter allows the position
of the marker relative to the line to be defined.

Depending on the view configuration, the text can be displayed:

  * on the left
  * in the centre
  * on the right

Text **rotation** can also be enabled if needed.

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===== Background colour =====

A **background colour** can be applied to the line
to improve marker readability.

This option is particularly useful when several
distance lines are displayed in the view.