PIX4Dsurvey can be used to measure points, distances, areas, or volumes on a PIX4Dsurvey project. To view the measurements, click on a vectorized object. The *Measurements* box labeled with the symbol will appear at the bottom of the *Content* sidebar on the left.

Obtaining measurements for a vectorized object.

## Points

Points can be measured by vectorizing a *Marker *object or selecting an existing one by clicking on a point in the 3D view. You can find additional information in the Vectorization article. To measure a point, use the simple selection tool and select a *Marker* in the 3D view.

### Marker

The following measurements will appear in the bottom part of the *content* sidebar on the left side of the PIX4Dsurvey window.

**Easting [m, ft]:**The easting coordinate of the marker.**Northing [m, ft]:**The northing coordinate of the marker.**Altitude [m, ft]:**The elevation of the marker in the case of a geoidal vertical coordinate system or**Ellipsoidal height [m, ft]:**The elevation of the marker in the case of an ellipsoidal vertical coordinate system.

## Distances

Distances can be measured by vectorizing a *Polyline *object or selecting an existing one in the 3D view. Additional information can be found in the Vectorization article. To measure a distance, use the simple selection tool and select a *Polyline* in the 3D view. The following measurements will appear in the bottom part of the *content* sidebar on the left side of the PIX4Dsurvey window.

### Polylines

The following measurements will appear in the bottom part of the *content* sidebar on the left side of the PIX4Dsurvey window.

**3D length [m, ft]:**The length of the polyline in the 3D space.**Height [m, ft]:**The difference between the highest and the lowest point of the polyline.**Min elevation [m, ft]:**The minimum elevation of the polyline.**Max elevation [m, ft]:**The maximum elevation of the polyline.**Min slope [° or %]:**The minimum slope of the polyline.**Max slope [° or %]:**The maximum slope of the polyline.

## Areas

Areas can be measured by vectorizing a *Polygon *or* Circle *object or selecting an existing one in the 3D view. Additional information can be found in the Vectorization article. To measure an area, use the simple selection tool and select a *Polygon* or *Circle *in the 3D view.

### Polygon

The following measurements will appear in the bottom part of the *content* sidebar on the left side of the PIX4Dsurvey window.

**3D perimeter [m, ft]:**The length of the perimeter of the polygon.**3D area [m**The 3D area of the polygon.^{2}, ft^{2}]:**Height [m, ft]:**The difference between the highest and the lowest point of the polygon.**Min elevation [m, ft]:**The minimum elevation of the polygon.**Max elevation [m, ft]:**The maximum elevation of the polygon.

### Roof polygon

In addition to all measurements shown for all polygons, the following measurements will appear in the bottom part of the *content* sidebar on the left side of the PIX4Dsurvey window (only for roof polygons detected with the roof detection tool).

Measurements for a roof polygon.

When a roof polygon is selected, this information is shown:

**[1] Measurements regarding all polygons within the same layer:****[**Name of the vector layer where the selected polygon is located. In this case, the layer name is "Roof house 1".*Name of the vector layer*]:**Roof facet count**: The number of roof polygons in the same layer.**Total roof 3D area [m**: The total area of all roof polygons in the same layer.^{2}, ft^{2}]

**[2] Standard polygon measurements:**(see Polygons).**[3] Measurements regarding the selected polygon:****Slope [° or %]**: The slope of a roof polygon.**Azimuth [°]**: orientation of the maximum slope of the roof.

### Circle

*content* sidebar on the left side of the PIX4Dsurvey window.

**Radius [m, ft]:**The radius of the circle.**2D area [m**The 2D area of the circle.^{2}, ft^{2}]:**Elevation [m, ft]:**Elevation of the circle, defined by its center.

## Volumes

Volumes can be measured by creating a *Volume object*. For step-by-step instructions for this procedure: Volume measurement - PIX4Dsurvey.

*content* sidebar on the left side of the PIX4Dsurvey window.

**3D perimeter [m, ft]:**The length of the perimeter of the volume polygon.**3D area [m**The 3D area of the polygon.^{2}, ft^{2}]:**Height [m, ft]:**The difference between the highest and the lowest point of the volume polygon.**Min elevation [m, ft]:**The minimum elevation of the polygon.**Max elevation [m, ft]:**The maximum elevation of the polygon.**Cut volume [m**Volume above the volume base. The volume is measured between the volume base and the surface.^{3}, yd^{3}]:**Fill volume [m**: Volume below the volume base. The volume is measured between the volume base and the surface. This value is negative.^{3}, yd^{3}]**Net volume [m**The total net volume (cut + fill volume).^{3}, yd^{3}]:**Total volume [m**The sum of the absolute values of cut and fill volume (|cut| + |fill volume|).^{3}, yd^{3}]:

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