If the fiber diameter estimation ran successfully, a GeoDict Result Viewer opens. The header section can be collapsed and expanded. In the Result Viewer, the results are organized into Input Map, Log Map, Post Map, Results, Data Visualization and Metadata, which are accessed through the corresponding tabs.

Under the Results - Report sub-tab, the average diameter and the corresponding standard deviation for all fibers, as well as averages, standard deviations and medians of the binned histogram values for each fiber type are displayed. An example of two different fiber types is shown below. The histogram is also shown in tabular form, giving the minimum and maximum diameter of each bin, as well as the volume fraction of fibers with this diameter range.

In the post-processing section, left of the Results tab, the Bin Size (in Voxels), the Thresholding Method, and the Number of Fiber Types can be changed. These post-processing commands allow control on the display of the result data. The post-processing section can also be collapsed and expanded.

Changing the Bin Size changes the width of the histogram bin and, therefore, its resolution.

The Thresholding Method for the separation between fibers of different fiber types allows to choose between the K-Means, Otsu’s method and a Manual selection of the threshold. This option is only relevant for two or more different fiber types.

If the analyzed structure contains fibers of different types, specify the Number of Fiber Types, and for each type, a Gaussian curve is fitted to the data.

Click Apply to apply the changes to all presented results, like the distribution values shown in the Report subtab and the histogram plots on the Plots subtab.

If Back-up result file is checked, a back-up file describing the previous results is stored in a directory named as your result file in your project folder (e.g. FiberDiameters.gdr.bck1).

The histogram shown under the Results - Plots subtab shows the volume fraction of the fibers  for each fiber diameter, together with a Gaussian fit to the histogram data. In the example shown below the highest volume fractions for one fiber type correspond to fibers with diameters around 12 µm.

However, in the example shown here, the structure consists of two fiber types: fibers with small diameter between 2-8 µm, and fibers with diameter between 9-18 µm.

Choosing two different fiber types instead of one type, leads to Gaussian distributions that fit much better to the fiber diameters present in the structure. The structure with a separation of the two different types of fibers is shown below.

Under the Data Visualization tab, the Fiber Type Structure and the Fiber Diameter Distribution can be loaded.

Clicking Load *.gdt opens a GeoDict structure. All fibers assigned to one fiber type have the same Material ID in this structure. In case of two different fiber types, as shown in the example here, fibers with small diameter have the Material ID 01 (here in yellow). Fibers with large diameter have Material ID 02 (here shown in grey).

If postprocessing parameters in the Results tab (Bin Size, Thresholding Method, or Number of Fiber Types) are changed, the information in the .gdr file also changes.

This information can be used for the separation of fibers with different fiber diameters. Reassign e.g. all voxels with Material ID 01 to ID 00 with ProcessGeo. In this way, only solid voxels with Material ID 02 remain in the structure and can be analyzed separately.

Now, click the Load GeoDict Size Distribution (*.gsd) button to observe the computed fiber diameter distribution. Check Diameter as the volume field to be loaded and click OK.

Then, deselect the visualization of the structure, by clicking Yes in the dialog that pops up (or by choosing View in the Menu bar and uncheck the Structure box).

In the Volume Field tab of the Visualization panel (above the Visualization area), with the Visibility set to material IDs 01 and 02, only the fibers are shown and not the pore space.

Please refer to the Result Viewer user guide for further detailed explanations, e.g. for the available data management buttons at the bottom of the Result Viewer.