Fit model charts

A fit model chart defines body measurements of reference model sizes. Every garment size has to correspond to a reference model size. The garment sizes of a single garment correspond to sizes of a single fit model chart.

The link between a fit model chart and a tech pack is established by the data fields gender, sizeType and brand. For valid association these field values have to coincide in both inputs.

If only a single fit model chart is provided it is admissible to omit the optional fields sizeType and brand.

The fit model chart input file can be either in table (csv, xls) or JSON format.

Table format

You can find an example of a fit model chart here

column name

data type

optional

value set

size

string

no

brand

string

yes

gender

string

no

  • male

  • female

sizeType

string

yes

measurements_name

string

no

body measurement ids

measurements_value

float

no

measurements_offsetToPreviousSize

float

no

measurements_offsetToNextSize

float

no

measurements_unit

string

no

  • cm

  • inch

JSON format (example)

{
  "fitModels" : [
    {
      "size" : "XS",
      "gender" : "female",
      "sizeType" : null,
      "brand" : null,

      "measurements" : [
        {
          "name" : "chest_circumference",
          "value" : xxx,
          "offsetToPreviousSize" : xxx,
          "offsetToNextSize" : xxx,
          "unit" : "cm"
        },
        {
          "name" : "shoulder_width",
          "value" : xxx,
          "offsetToPreviousSize" : xxx,
          "offsetToNextSize" : xxx,
          "unit" : "inch"
        }
      ]
    }
  ]
}
JSON

Offset fields

The fields offsetToPreviousSize and offsetToNextSize describe the absolute offset to the value of the same measurement in the directly next (larger) and previous (smaller) size. If there is no larger or smaller size then for this entry offsetToPreviousSize and offsetToNextSize shall be the same.

Tech pack data

The garment-specific tech pack data file provides optional information about available garment sizes and (optionally) garment measurements per garment size.

The field uid is mandatory if size information of more than one garment is provided as input.

The tech pack input file can be either in table (csv, xls) or JSON format.

Table format

You can find an example of a tech pack here

column name

data type

optional

value set

garmentGroup

string

no

garment group ids

uid

string

yes

name

string

yes

brand

string

yes

gender

string

no

  • male

  • female

sizeType

string

yes

waistbandRatio

float

yes

[0.0, 1.0]

stretchFactor

float

yes

availableSizes

string

yes

size ids separated by the | character

measurements_size

string

no

measurements_name

string

no

garment measurement ids

measurements_value

float

no

measurements_unit

string

no

  • cm

  • inch

JSON format (example)

{
  "garmentData" : [
    {
      "garmentGroup" : "shorts",
      "gender" : "female",
      "uid" : null,
      "name" : null,
      "sizeType" : null,
      "brand" : null,
      "waistbandRatio" : 0.5,
      "stretchFactor" : null,
      "availableSizes" : [
        "36", "38", "40"
      ],

      "measurements" : [
        {
          "size" : "38",
          "name" : "waistband_circumference",
          "value" : xxx,
          "unit" : "inch"
        },
        {
          "size" : "40",
          "name" : "chest_circumference",
          "value" : xxx,
          "unit" : "cm"
        }
      ]
    }
  ]
}
JSON

Waistband ratio

The measurement of interest of type waistband cannot be assigned to a body measurement in a straight-forward manner as its proper vertical position varies depending on the garment.

That is why for relevant garments (with garment groups that encompass the waistband measurement) the field waistbandRatio has to be set to a value between 0.0 and 1.0, whereas

  • 0.0 means the waistband is supposed to be on a level with the waist

  • 1.0 means the waistband is supposed to be on a level with the hip

  • values in between with linear interpolation.

Examples

Fit Model Chart

Table Format

Link

Tech Pack

Table Format

Link