After defining the linear distribution, you should determine bar segments whose length changes in the course of distribution as follows:
- Cut (with a line) through the bar segments, thus indicating that their length is to be variable in the course of distribution.
- Define a region of reinforcement distribution and a cover value (by default, it is adopted from a bar shape) have to be defined.
A direction of reinforcement distribution are defined by indicating:
- 2 points
- contour edge.
By default, the distribution direction is parallel to 1 defined distribution line (region edge) - it is presented by means of two arrows.
In the next stage, the distribution region is divided into zones. If definition of zones is completed, then the dialog box opens, and is used to manage distribution within each of the defined zones.
When the distribution varying linearly is applied, it is necessary to define a region. There are three methods available: Select, Pick point and X-points.
For the X-points method, the region is defined by means of a closed broken line. By default, first two indicated points will determine the distribution line.
When applying Selection (select), a selected edge will be the distribution line (the closest edge, if it is selected by means of a window); it works similarly when the Pick point option is selected: the closest edge from the indicated point is the distribution line.
Once the region is identified, the program draws a CONTOUR of the distribution region with a cover included. Points (zone boundaries) may be indicated only within the distribution region. A cover is ALWAYS defined as the distance measured from reinforcement, and perpendicular to the distribution line. The zone length is ALWAYS measured along the distribution line.
The 
icon refers to created 3D cross-sections. When selected, you can position reinforcing bars in the cross-section in accordance with the principles of projecting and making cross-sections. You can then determine the side of the bar (beginning or end) on which the selected bar end types are provided.
Distribution parameters are defined by:
- Specifying the value of reinforcement spacing in a given zone.
- Determining the value of parameter n - it corresponds to the number of reinforcement spacings (Note: this value should not be confused with a number of reinforcement bars which equals n+1).
- Determining the reinforcement area.
If any of the parameters change, the values of the remaining parameters are updated.
The parameters are illustrated by a schematic drawing provided in the dialog. The options located next to the drawing enable you to position precisely the distribution of reinforcement in a given zone:
- Two edit fields define the value of the distance between the extreme reinforcement and the zone limit; for extreme zones the distance value indicates a distance of the extreme bar in the distribution to the zone limit, whereas for intermediate zones this is a distance between the extreme bars of the neighboring zones
- The button placed between the edit fields enables centering the distribution.
Command line
Select distribution type: [Linear / varying Linearly / Arc / Point] <varying linearly>
Distribution method: [Zone / Module / Caquot] < Zone >
Direction of projection - viewing a bar [X / Y / Segment] <Y>
Segment – Select bar segment
Dialog box closing
Select segment(s) of varying length : (this text appears ONLY for X and Y)
Region of reinforcement distribution [Select / Pick point / Define] : <Select>
Define
Start point
Next point or [Cover / Back]
Cover <5>
Next point or [Close / Cover / Back]
Reinforcement distribution direction or [Select / Points / Angle ]
Select object
Start point
End point
Angle <90>
Beginning of 1 zone or [N-zones / Back]
Number of zones <1>
End of 1 zone or [Back]
End of 2 zone or [Back]
Next zone or change [Spacing / Number / / Alignment ]
Spacing <0.12>
Number <7>
Alignment: [Center / Left / Right] <Center>