> For the complete documentation index, see [llms.txt](https://help.visuary.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.visuary.com/guide-visuary-en/the-scan/scan-best-practices.md).

# Scan best practices

By following the best practices listed below, you give yourself the best chance of getting an accurate and faithful Survey / Measurement of the existing condition.

***

{% hint style="success" icon="lightbulb" %}
For your first scan, we recommend **doing a test in a quiet environment at home**. This will let you get comfortable with the tool before using it on a job site.
{% endhint %}

### The lighting

{% columns %}
{% column width="25%" %}

{% endcolumn %}

{% column width="41.66666666666666%" %}
{% embed url="<https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZFcDkdPcFkKsLAju8DW3%2Fuploads%2FSfwQdppyyOpYgUUvGTOF%2Fact_flash.mp4?alt=media&token=3cf92ca4-2564-4183-a848-74a9cf05cf2b>" %}
Flash activation during the scan
{% endembed %}
{% endcolumn %}

{% column %}

{% endcolumn %}
{% endcolumns %}

If the Dwelling / Housing unit in which you are carrying out the Survey / Measurement does not have enough light to allow the scan to correctly detect all the elements, we recommend that you**activate the flash on your device**. \
\
To do this:

1. Start a scan
2. **Tap the "bulb" icon at the top right of the screen**

***

### Scan room by room or by zones of about 40 m²

{% columns %}
{% column width="25%" %}

{% endcolumn %}

{% column width="41.66666666666666%" %}

<figure><img src="/files/1cedf97b6b33ef6ece2a8b8b158a091dc1b0f550" alt="Capturer par zone de 40m2"><figcaption></figcaption></figure>
{% endcolumn %}

{% column %}

{% endcolumn %}
{% endcolumns %}

For spaces over 40 m², divide them into **several zones**

To do this:&#x20;

1. Start each new zone at the exact spot where you finished the previous one, to ensure the continuity of the plan.

***

### Move slowly and smoothly, without pausing

{% columns %}
{% column width="25%" %}

{% endcolumn %}

{% column width="41.66666666666666%" %}
{% embed url="<https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZFcDkdPcFkKsLAju8DW3%2Fuploads%2F3jRrUEhKNsyVZVPihfGw%2Fdeplacement_lentV1.mp4?alt=media&token=d5c31b33-af4f-4d43-b769-ef0cb89a2897>" %}
Movements during the scan
{% endembed %}
{% endcolumn %}

{% column %}

{% endcolumn %}
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Stay in constant motion:&#x20;

1. Move **slowly and smoothly**, without pausing during the scan.
2. Avoid leaving the app or stopping mid-scan: this can cause errors in the layout of the zones and force you to restart the scan from the beginning.

***

### Go over the important elements several times to improve accuracy

{% columns %}
{% column width="25%" %}

{% endcolumn %}

{% column width="41.66666666666666%" %}
{% embed url="<https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZFcDkdPcFkKsLAju8DW3%2Fuploads%2FIh3xL9KnBdg3AHNAFOqc%2Fzone_complexeV1%20(1).mp4?alt=media&token=595f9d8d-be7e-4259-9d6d-d1fbda443581>" %}
Scan important and/or complex elements
{% endembed %}
{% endcolumn %}

{% column %}

{% endcolumn %}
{% endcolumns %}

Scan important elements such as openings:&#x20;

1. For the **walls, openings and doors**, go over them again to improve the overall accuracy of the survey / measurement.
2. For the **sloping ceilings**, go over the Edge so that the slope appears correctly in the 3D model.

***

### Have a stable internet connection or activate Airplane mode

{% columns %}
{% column width="25%" %}

{% endcolumn %}

{% column width="41.66666666666666%" %}
{% embed url="<https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FZFcDkdPcFkKsLAju8DW3%2Fuploads%2FqVGN9tmSFzPpxr3IF9f9%2Factiver_mode_avion.mp4?alt=media&token=9d1775d4-f768-4fa1-960d-fc76306d2c1c>" %}
Activate Airplane mode before the scan
{% endembed %}
{% endcolumn %}

{% column %}

{% endcolumn %}
{% endcolumns %}

Whether you use Wi-Fi or 5G, it is important to have a stable internet connection during the scan.

If not:&#x20;

1. **Activate Airplane mode** on your device to carry out the scan offline.

{% hint style="danger" %}
To finalize and save the scan, however, you will need to reconnect to an internet network.
{% endhint %}

***

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td>Perform a scan</td><td><a href="/pages/71b25c74e01625462230b29804425ef4a40ffc2d">/pages/71b25c74e01625462230b29804425ef4a40ffc2d</a></td></tr><tr><td>Capture view</td><td><a href="/pages/045452484b5425aa22d15fd8b9f2981321caab2a">/pages/045452484b5425aa22d15fd8b9f2981321caab2a</a></td></tr><tr><td>Photos and comments</td><td><a href="/pages/078a15b7b8bea98eb5cb95d2f4d58aecd4823651">/pages/078a15b7b8bea98eb5cb95d2f4d58aecd4823651</a></td></tr></tbody></table>


---

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