### Simple Geometrical Measurements plugin

This plugin allows basic 3D geometrical measurements in calibrated unit on detected objects like volume, area,... and some shape descriptors like Compacity, Feret, ... . All detailed measurements are :

**Volume (in pixels)** : the total number of voxels in the object.
**Volume (in unit)** : the volume in unit, using voxel calibration.
**Surface (in pixels)** : the total number of voxels at the surface of object.
**Surface (in unit)** : the surface in unit, using voxel calibration (voxel at the surface in XY or Z may have not the same calibrated surface).
**Centroid** (Cx, CY, CZ) : the coordinate of the isobarycenter of the object.
**Compacity** ; ratio between volume and surface, values close to 1 describe a spherical object.
**Feret** : the longest distance between two voxels of the object.
**Elongation** : when fitted by an ellipsoid, the ratio between the longest axis and the second longest axis.
**Ratio Ellipsoid / volume**, ratio between the fitted 3D ellipsoid and the actual volume, valus close to 1 describe an ellpitic shape.
**DC measures**, all distances from the center to the surface are computed, average and standard deivation are displayed.
**Z-thickness** : the difference between the highest *Z* and lowest *Z* of the object.
**XY measures** : measures in 2D for all slices, for Feret diameter or 2D ellipsoid fitting, useful for quasi-flat objects.