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Overview

The following parameters are related to controlling a girdle shape when working with SmartRecut:

  • GirdleShape1stDerEveryToleranceModule
  • GirdleShape2ndDerEveryToleranceModule

The description of these parameters, information about their calculation and presence in appraisers and reports is presented on the  Girdle Shape Tolerance page.

Parameter Usage

As both girdle shape tolerance parameters limit the difference between girdle shape in the Recut and corresponding SmartRecut solutions, you can use them to additionally limit this difference, which means you may obtain SR solutions that are more alike to the Recut original solution in the sphere of the girdle shape. The lower value you set for the GirdleShape1stDerEveryToleranceModule and GirdleShape2ndDerEveryToleranceModule parameters, the more similarity of girdle shapes of Recut and SmartRecut solutions you obtain.

Note that decreasing parameters values:

  • increases the similarity of girdle shapes of Recut and SmartRecut solutions but
  • may have a decrease of mass as a back effect.

Setting new parameter values for both parameters is done via editing the presets. The default values for all presets are presented in the figure:

Example

In this example project (GS Parameters Example 5-10-20-30 (v.3).oxgz) the following SmartRecut solutions were obtained by changing the GirdleShape1stDerEveryToleranceModule and GirdleShape2ndDerEveryToleranceModule values.

HPO version = 5.4.5

Appraiser = MyAnyCutOpt | MyAnyCutRelatve

Profile = Default

GirdleRatio [Ex Ex] = [-0,01 0,01]

Cutting (Client Cuttings) = PearSimple (PearSimple.zip)

All solutions produced from:

Recut solution (#1) with Algorigthm = "SmartRecut (Brilliant, Oval, AnyCut)" and Preset = AnyCut_avg_preset.ini

Solution #GirdleShape1stDerEveryToleranceModuleGirdleShape2ndDerEveryToleranceModule
255

3105
4205
5305
6510
71010
82010
93010
10520
111020
122020
133020
14530
151030
162030
173030
1800
RecutSolution #18 (GS1 = 0, GS2 = 0)Animation for Recut - GS1 5-10-20-30

1.0000 Ct1.0582 CtGS2 = 5
Legend
Recut

SmartRecut


GirdleShape1stDerEveryToleranceModule

5

10

20

30

5

1.0661 Ct1.0712 Ct1.0764 Ct1.0768 Ct
10

TBD

1.0662 Ct1.0716 Ct1.0789 Ct1.0820 Ct
20

1.0662 Ct1.0716 Ct1.0793 Ct1.0835 Ct
30

1.0662 Ct1.0716 Ct1.0793 Ct1.0838 Ct
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