# Project Coordinate System

Use the **“Coordinates”** section when creating or editing a project to define its units, reference systems, and spatial framework.

[![image.png](https://help.mystart.com/uploads/images/gallery/2025-03/scaled-1680-/3zXimage.png)](https://help.mystart.com/uploads/images/gallery/2025-03/3zXimage.png)

These settings are essential for aligning all spatial data correctly within your project and ensuring consistency across datasets.

<table border="1" cellpadding="0" class="MsoNormalTable" id="bkmrk-field-description-ti" style="border: 1pt solid rgb(255, 255, 255); width: 100%; height: 886.64px; border-collapse: collapse;"><thead><tr style="height: 19.7969px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 19.7969px;"><span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">**Field**</span>

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 19.7969px;"><span style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">**Description**</span>

</td></tr></thead><tbody><tr style="height: 36.5938px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 36.5938px;">**Time Zone**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 36.5938px;">Sets the local time zone for the project location. This helps timestamp data and coordinate updates across time-based processes.

</td></tr><tr style="height: 238.156px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 238.156px;">**Horizontal Datum**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 238.156px;">A horizontal datum defines how latitude and longitude coordinates are calculated based on the shape of the Earth. VoxelSpace supports the following horizontal datums:   
  
• WGS 72  
• WGS 84  
• GRS 80  
• NAD27  
• NAD83  
• NAD83 (2011)  
• NAD83 HARN  
• NAD83 CSRS  
• GDA94  
• ETRS89  
• AGD66

</td></tr><tr style="height: 221.359px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 221.359px;">**Vertical Datum**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 221.359px;">A vertical datum sets the reference surface used to measure elevation or depth. VoxelSpace supports the following vertical datums:   
  
• WGS 84  
• NGVD 29  
• NAVD 29  
• NAVD 88 (GEOID variants 96–12B)  
• CGVD 28  
• CGVD 2013  
• DVR 90  
• NN2000  
• NN54  
• DHHN92

</td></tr><tr style="height: 221.359px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 221.359px;">**Projection**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 221.359px;">Defines the map projection used to represent the Earth’s curved surface in 2D/3D space. Supported projections include:   
  
• Latitude/Longitude  
• Longitude/Latitude  
• Earth-Centered Earth-Fixed (ECEF)  
• Mercator  
• Universal Transverse Mercator (UTM)  
• Transverse Mercator  
• Lambert Conformal Conic  
• AEAC  
• AMG  
• MGA

</td></tr><tr style="height: 19.7969px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 19.7969px;">**Units**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 19.7969px;">Choose whether your project uses **meters** or **feet** for all distance measurements.

</td></tr><tr style="height: 19.7969px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 19.7969px;">**Voxel Size**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 19.7969px;">Voxels are 3D cubes. This setting defines the edge length of each voxel (in project units).

</td></tr><tr style="height: 36.5938px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 36.5938px;">**Project Origin (X, Y, Z)**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 36.5938px;">The origin point of the project’s coordinate space. All spatial data will be referenced relative to this point.

</td></tr><tr style="height: 36.5938px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 36.5938px;">**Min X, Y, Z (Read-only)**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 36.5938px;">The minimum bounds of the coordinate system in each axis. Calculated automatically.

</td></tr><tr style="height: 36.5938px;"><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 13.4748%; height: 36.5938px;">**Max X, Y, Z (Read-only)**

</td><td style="border: 1pt solid rgb(255, 255, 255); padding: 0.75pt; width: 86.4062%; height: 36.5938px;">The maximum bounds of the coordinate system in each axis. Calculated automatically.

</td></tr></tbody></table>

<div class="rvps2" id="bkmrk-time-zone-the-time-z"></div>**Next Steps**

After setting the coordinate system, click **“Next”** to continue defining the dimensions and spatial extent of your project.

[![image.png](https://help.mystart.com/uploads/images/gallery/2025-03/scaled-1680-/p5Yimage.png)](https://help.mystart.com/uploads/images/gallery/2025-03/p5Yimage.png)

[![image.png](https://help.mystart.com/uploads/images/gallery/2025-03/scaled-1680-/Pi1image.png)](https://help.mystart.com/uploads/images/gallery/2025-03/Pi1image.png)