/*! \page shape_statistics_operation_page Shape Statistics This operation allows plotting a distribution histogram for the numerical parameters and creating the corresponding geometrical groups of the given shape. To call Shape Statistics dialog box, in the Main Menu select Inspection - > Shape Statistics. \image html shape_statistics.png In this dialog: - "Selected objects" standard selection box allows selecting one or more geometrical objects. - "Type" combo-box with the following items: "Edges length", "Faces area", "Solids volume". \note "Type" combo-box includes only parameters applied to the currently selected shape (e.g. "Solids volume" will not be available for a selected face or shell); multiple selection is processed correspondingly (i.e. only types applicable for all selected shapes will be available). - "Number of intervals" spin box is used to specify number of distribution histogram ranges. - "Scalar range" checkable group box, when switched ON, allows specifying custom values range used for plotting and creating groups. \note By default, "Scalar range" controls are empty; pressing "Compute" button allows automatically computing the initial range of the chosen parameter. This is necessary as the computation of the parameters range can be time-consuming for large or complex models. In case of multiple selection, the scalar range is computed for all selected shapes. - "Plot" button opens or uses an opened Plot2d viewer and plots the distribution histogram for the selected shape(s). - "Create groups" button allows creating groups according to the currently specified parameters. The group names will include numerical values of the range, e.g. "Edges_length_0-20", "Edges_length_20-40", etc. Empty groups are not created. - Close dialog box, by pressing Close button. \note This functionality is available only if GUI module is built with Plot 2D Viewer (option SALOME_USE_PLOT2DVIEWER is ON when building GUI module). */