====== Managing zones and axes ======

**Zones** and **axes** allow you to structure the spatial
organization of a project’s phasing.

Zones generally represent **work areas or intervention sectors**,
while axes represent **linear elements**
(roads, railways, networks, etc.).

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===== Adding zones =====

==== Adding a zone by drawing a polygon ====

Select the **Create Zone** button from the **Objects**
drop-down menu.

{{:en:phasing:2026-03-13_09h10_15.png?300|}}

Then define the points of your zone using the **left mouse button**.

A **right-click** closes the polygon and completes
the zone creation.

A window then appears allowing you to:

  * associate the drawn shape with an **existing zone**
  * or create a **new zone**

{{:en:phasing:2026-03-13_09h11_57.png?300|}}

By default, the zone representation is only associated with
the plan on which it was drawn.

To associate it with other plans:

  - select the zone
  - click the **Publish** button in the actions panel
  - associate the zone representation with the desired plans

{{:fr:phasage:2026-03-10_17h45_27.png?300|}}
then
{{:en:phasing:2026-03-13_09h13_26.png?300|}}

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===== Adding axes =====

==== Adding an axis by drawing its segments ====

Select the **Create Axis** button from the **Objects**
drop-down menu.

{{:en:phasing:2026-03-13_09h18_59.png?300|}}

Define the points of your axis using the **left mouse button**.

A **right-click** on the plan finishes the creation
of the axis.

A window then appears allowing you to:

  * associate the axis representation with an **existing axis**
  * or create a **new axis**

{{:en:phasing:2026-03-13_09h19_35.png?300|}}

If the axis segments appear in **red**, it means that the
**chainage values (PK)** have not yet been calculated
or are inconsistent.

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===== Defining the axis direction =====

The direction of an axis is defined when it is created.
The first points correspond to the **lowest chainage values**.

This orientation impacts the calculation of the
**chainage (PK)**.

To reverse the axis direction:

  - right-click on the axis
  - select **Reverse Axis**

If the chainage values become inconsistent,
they appear in **red**.

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===== Calculating chainage =====

TILOS 360 can automatically calculate **chainage values**
along an axis.

Two situations are possible.

==== 1. The plan has a defined scale ====

Assign a value to **one point on the axis**, then click
**Calculate PK** in the **Objects** menu.

{{:en:phasing:2026-03-13_09h20_55.png?300|}}

The chainage of the other axis points is then
automatically calculated.

==== 2. The plan does not have a defined scale ====

Assign values to **two points of the axis**, then click
**Calculate PK**.

The chainage of the other points will then
be calculated automatically.

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===== Importing a KML =====

KML import allows you to retrieve zones or axes
created in tools such as **Google Earth**.

This requires either a **georeferenced plan**
or working directly on the **GIS map**.

In **Phasing design**, select the desired plan.

To import a KML file:

  - open the **Objects** drop-down menu
  - click **KML**
  - select the file to import

{{:en:phasing:2026-03-13_09h21_50.png?300|}}

The zones contained in the file are then
created automatically in the project.

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===== Common behavior of zones and axes =====

==== Graphical movement ====

Zones and axes can be moved using the mouse.

After creation, zones and axes are **locked by default**.

The lock icon indicates the current status:

  * **open lock**: movement allowed
  * **closed lock**: movement locked

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==== Rotating zones and axes ====

Zones and axes can be **rotated**.

To rotate an object:

  - select the zone or axis
  - move the cursor over the **red point**
  - click and rotate the object

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==== Publishing to other plans ====

To publish a zone or axis to several plans:

  - select the object
  - click **Publish**
  - choose the desired plans

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==== Copy / paste a zone or axis ====

To copy an object:

  - right-click the shape
  - select **Copy**

Then:

  - right-click in an empty area of the plan
  - select **Paste**

A window allows you to create a **new zone/axis**
or associate the shape with an existing object.

The new zone or axis is initially superimposed on
the original and must then be moved.

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==== Modifying graphical properties ====

The **Properties** button allows you to modify:

  * the **color**
  * the **line type**
  * the appearance of **zones**
  * the appearance of **axes**

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===== Using the right-side panel =====

The right-side panel displays all **zones and axes
of the project**.

{{:en:phasing:2026-03-13_09h23_40.png?300|}}

Objects that have a representation include
a **Visible** checkbox.

Recommendations:

  * adjust zone visibility to **avoid overloading the interface**
  * disable **labels** to avoid unintended clicks

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===== Reorganizing zones =====

Zones can be organized hierarchically using
**drag and drop** in the side panel list.

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===== Print areas =====

The second tab of the side panel displays
the **list of print areas in the project**.

A **double-click** on a print area
centers the display on that area.