DiamCalc
What is new in the DiamCalc 2.8?
  1. Added the possibility to generate same RTF and HTML reports for scanned polished diamonds as in the OctoNus Helium Polish software. Users may customize report templates to fit their needs. Such reports may be generated using files with 3D model of the stone obtained by OctoNus scanners as well as using any other imported 3D model. There are examples of new DiamCalc reports for Helium and Sarin scanned polished brilliants:

    Sample scanned by Helium Polish   HTML report for polished brilliant (Helium)   MS Word Illustrated report for polished brilliant (Helium)   PDF
    Sample scanned by Sarin   HTML report for polished brilliant (Sarin)   MS Word Illustrated report for polished brilliant (Sarin)   PDF

    The OctoNus Helium software can export a 3D model of the scanned diamond and its parameters to the DiamCalc's DMC file. DiamCalc can read such files and display the scanned model and its parameters. DiamCalc can generate the same reports on scanned diamond as Helium Polish does using the data provided by the Helium Polish. If the loaded file contains the scanned diamond parameters, some of them will be displayed on the "Advanced" and "Advanced 2" tabs:

     

    When you work with scanned or imported 3D model a special button «Scanned reports» becomes enabled. This button is located to the right of parameters list. It invokes a new window that allows creating reports for 3D models of diamonds obtained by OctoNus scanners as well as for any other imported 3D model. The DiamCalc installation contains a set of sample stones with different cuttings scanned on Helium. They are placed in the SAMPLE_STONES subfolder.

    If you loaded the DMC file that was created by Helium, the window for reports will look similar to this:

    The cutting type of the model is already defined; all facets of the model are colored according to their types. Generally you will not need to alter these. You may adjust extra parameters like "Model name". In order to make a report choose report template from the list and press the "Make report" button. RTF reports require MS Word to be installed. If you choose report from "Open RTF" tab the DiamCalc will fill the chosen template with report parameters and pictures and launch MS Word. If you choose report from "Print RTF" tab the filled report will be sent to default printer and MS Word will close. Reports from "Open HTML" tab will be shown in your default browser.

    If you imported 3D model or loaded DMC file that doesn't have report data yet, the window for reports will look similar to this:

    At first specify correct cutting using drop-down list. Please note, that there are different sets of report templates for different cuttings. The list on the screen will show templates available for the selected cutting. Then you will need to specify types of each facet so that the software will be able to calculate stone parameters. Check the "Edit facet types" checkbox. If it is the first time when you begin to edit facet types on this stone the DiamCalc will try to detect facet types automatically (the same is done when you press the "Run auto detection now" button). Verify that all facets are colored correctly and adjust colors where necessary. Refer to sample stones included with DiamCalc to see how different cuttings should be colored.

    In the window with the model left mouse button rotates the model, right mouse button moves the model, mouse wheel changes zoom. In the edit mode (when "Edit facet types" is checked) use the table of colors to choose the facet type. Press left mouse button on the facet and its type will be changed to the currently selected. Press right mouse button on the facet and the currently selected color will switch to the color of this facet. Color boxes in the table show the quantity of facets of the given type. It may be useful as a quick check, e.g. it is known that the full round brilliant cut should have 8 main facets and 16 halves.

    Once you specified types of all facets enter values for extra parameters that you need and press "Calculate report parameters button". DiamCalc will measure stone parameters based on the Cutting type and facet types that you provided. In order to see the result, choose report template from the list and press the "Make report" button.

    For more detailed step-by-step instruction of making report for a model obtained by Sarin scanner click here

    The DiamCalc installation contains a set of report templates for different cuttings. They are placed in the REPORTS subfolder. You may customize provided RTF report templates in MS Word or create your own taking existing templates as examples. Please note, that MS Word report templates should be saved in RTF format. HTML report templates also may be customized. Use your favorite HTML editor for it. The examples of how the MS Word "Illustrated color report for round brilliant" looks like are in the begining of the section.

  2. The Pavilion and observer (dark zone body) lighting was added.
  3. The Cut Quality estimation has new index: Dark zone mono. Calculation of Contrast is disabled.
  4. The new "Princess 3-chevron" cut was added.
  5. The Radiant cut was corrected. It allows significant stretching now.
  6. Support for external cuts from DLL was added. All DLLs implementing such cuts should be placed in the "Cuttings" subfolder of DiamCalc. The content of this folder is analyzed at the start of the program and all found cuts are appended to the list of available cuts. If you save DMC file with external cut and pass it to another user of DiamCalc or GemAdviser, make sure that the recipient also has the corresponding DLL.
  7. AGS Angular Spectrum Evaluation Tool + White lighting (ASET white) is added. It has the same settings as ASET lighting, and has one additional diffuse white light source.
  8. The IdealScope lighting settings are corrected. Now the light source that represents diffuse light (infinite plane) allows to specify fading of the light at infinity. See lighting configuration dialog box. The diffuse light source that is used in IdealScope and ASET+White lightings has a new parameter: Source brightness at infinity. If this parameter is 100% then light brightness at infinity is the same as in the center and the light source becomes identical to its previous version.
  9. Added possibility to view color information of any point of the model’s photoreal image. Choose menu item View -> Color information and click right mouse button on image to get color information. The popup window will contain detailed information which is updated by the right-click on the model.
  10. Added possibility to ignore material dispersion. See Simulation Parameters in dialog box for customizing lighting options (Menu Options –> Lighting –> Customize).
  11. Added possibility to change ray tracing accuracy when rendering photoreal images. See Simula-tion Parameters in dialog box for customizing lighting options (Menu Options –> Lighting –> Cus-tomize). The following lightings use three ray (RGB) tracing by default: Al Gilbertson, Al Gilbertson + White, Fire Scope, Ideal Scope, Dia Scope, Hearts & Arrows, ASET, ASET+White, GemCad ISO, GemCad ISO+head, GemCad COS, GemCad COS+head.
  12. Added "Lower facets length" parameter to Brilliant cut to measure lower girdle facets according to GIA and Sarin.
  13. Added possibility to multiply absorption spectrum by value. See Gem material –> View/Modify properties dialog box, "Absorption" tab.
  14. Added possibility to adjust absorption spectrum baseline. See Gem material –> View/Modify properties dialog box, "Absorption" tab.
  15. Added possibility to import transmission spectrum of gem material from text files. See Gem material –> View/Modify properties dialog box. The file with transmission spectrum should have two columns of values separated by spaces. The first column should contain wavelength, the second column should contain transmission coefficients for each wavelength. Besides this file it is necessary to indicate plate thickness and material for recalculation of transmission coef-ficients into absorption coefficients.
  16. Added possibility to import absorption spectrum of gem material from text files. See Gem material –> View/Modify properties dialog box. The file with absorption spectrum should have two columns of values separated by spaces. The first column should contain wavelength, the second column should contain absorption coefficients for each wavelength.
  17. It is possible to set position of the light sources with the precision of 1 degree.
  18. Added possibility to import convex models in binary and ASCII stereolithography format (STL). See Cut –> Import cut menu. Non-convex models will be imported as convex hulls.
  19. Added possibility to import AutoDesk DXF, GemCad ASCII, Stereolithography STL, Sarin SRN files via drag-and-drop operation.
  20. Added possibility to load gem material from DMC file. See Gem material –> Load material menu.
  21. Added possibility to export absorption spectrum of gem material into text file. See Gem material –> View\Modify properties dialog box.

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