Curve Details

In the curve Details section, you can define the curve details of the selected curve.

Use a curve as a reference

You can use an existing curve Collection or curve Profile as a reference. This is useful if you need to reuse the same Recipe in multiple occasions. In the curve Profiles list, an icon indicates which profiles are referencing the current Recipe. When a curve Profile is referencing a curve Recipe that doesn't exist, an error icon is displayed in the curve Profiles list.

Curve Type

You can select if the curve is a Direct or Compensation curve.
  • A direct curve is applied directly to the file.
  • A compensation curve is applied to compensate the dot gain on the press. Create the curve by entering the X and Y values in the right table, where X is the desired dot percentage and Y is the percentage measured on the print surface.

Curve creation

  • In case of a direct curve, create the curve by entering the X and Y values in the right table, where X is the desired dot percentage and Y is the percentage you need to obtain it.
  • In case of a compensation curve, create the curve by entering the X and Y values in the right table, where X is the desired dot percentage and Y is the percentage measured on the print surface.
  • There are two ways to add a curve point:
    1. You can add a point in the value table. The curve graph will display a graphical representation of the curve.
      1. Select or > Add New Point.
      2. Enter the X value.
      3. Go to the Y field by pressing the Tab key or by selecting it.
      4. Enter the Y value.
        1. If you press the Tab key, the point is added and a new X field is automatically activated where you can start adding a new point.
        2. If you press the Enter key, the point is added and you can no longer press the Tab key to add a new point. To add a new point, you have to repeat steps 1 to 4.
        3. Press the Escape button or select to cancel.
    2. You can click on a position on the curve where you want to add the point. You cannot click on an existing point.
  • There are two ways to edit a point:
    1. You can select the X or Y field and enter the updated value. Press the Tab or Enter button to validate the updated value. Press the Escape button to cancel.
    2. You can drag and drop an existing point on the curve.
    Note: The 0 and 100 X values are mandatory and cannot be edited or removed.
  • You can also upload a CSV file that contains curve points. These points will be added to the curve. To do this, drag and drop the CSV file in the user interface or select > Upload Measure.
    The CSV file needs to be properly encoded CSV. This implies the following restrictions:
    • The separator must be ;
    • The values must be between 0-100
    • The file must contain an even amount of numbers, where the odd ones represent the x-values and the even ones the corresponding y-values.
    • The following characters are not allowed: " ' ,
    • It may not contain different points with the same x-value like ;2;3; and ;2;5;
Note: The curve point have to be strictly ascending. If not, the error message CURVE NOT VALID is displayed.

Highlights

  • Zero Output Below: here you can define a percentage below which all output values will be set to zero. This value needs to be smaller than the Minimum Dot.
  • Minimum dot: here you can define the minimum dot percentage that you want to bump your curve to. The minimum dot is the smallest dot that can be printed before it disappears. It can only be specified if there is no reference curve. In case a reference curve is necessary in the curve preset, a combination of curve presets should be created.
  • Smooth Zone Until: here you can define a value until which the curve will be smoothened. When entering zero, no smoothening is applied to the curve.
  • Keep 0% at 0%: if you enable this option, the curve will be taken down to 0% at 0%.
  • Use PDF input values: if you enable this option, the PDF input values will be used.

Shadows

  • Set Output to 100% Above: here you can define a percentage above which all values will be set to 100%. This value needs to be higher than the Maximum Dot.
  • Maximum Dot: here you can define the maximum dot percentage. The maximum dot is the biggest dot that can be printed before it becomes 100%. It can only be specified if no reference curve is set. In case a reference curve is necessary in the curve preset, a combination of curve presets should be created.
  • Smooth Zone From: here you can define a value from which the curve will be smoothened. If you enter a value smaller than the Maximum Dot, the curve will be smoothened up till the value set. When entering hundred, no smoothening is applied.
  • Keep 100% at 100%: if you select this checkbox, the curve will be pushed up to 100% at 100%.
  • Use PDF input values: if you select this checkbox, the PDF input values will be used.

Description

In the Description field you can define a description for the curve.