Advanced Layer Settings¶
Use this dialog to configure advanced settings for layers in material types.
Where to Find the Dialog¶
On the toolbox, select SFI Properties... – Material Types – Edit Material Type – Advanced Settings.
Adjust Layer¶
Offset¶
With this option, the heights in the layer are adjusted by the offset value.
This option is used, for example, to calculate continuous lengths for different depths in trenches.
Example
Calculate the length where the trench is in the depth interval 0–1 m.

Blue line = Depth interval 0–1 m, A = Soil, B = Rock
The material type is defined as follows:

Surface Selection¶
You can limit the layer by specifying which surfaces should be included in the calculation. This is done by entering a text string for the surfaces to include.
Example
| String | Description |
|---|---|
| (-5.1),(5.1) | Area of surfaces -5.1 and 5.1 (only these two surfaces) |
| (-5.1:5.1) | Area from -5.1 to 5.1 (including all surfaces in between) |
| (-6.2),(-4.1:4.1),(6.2) | Area of surface -6.2, from -4.1 to 4.1 including all surfaces in between, and surface 6.2 |
Category¶
This option is relevant for tunnel contours. If you want to use parts of a closed contour in composite layers or material types, this is possible if you have assigned a type to the points in the contour.
Example

In the closed blasting contour, the surfaces in the base are coded with type Base.
By selecting base under category in the advanced settings for the layer, only these surfaces will be used in the calculation of the composite layer.
You can then create a composite layer with base and trench.

Priority¶
Sometimes it may be necessary to set the priority order of the layers to ensure the calculation is correct.
For example, you may have a layer with measured rock and a layer with assumed rock in the From Layer list. In this case, you want to calculate from measured rock, regardless of whether the layer is lower or higher than the layer with assumed rock. If the measured rock layer does not exist in an area, or data is missing in a profile, the material type should be calculated against the layer with assumed rock. The solution is to set priority 1 on the measured rock layer.
Other Options¶
Mandatory (layer must exist in profile)¶
With this option, you can require that the layer must exist in the profile for the material type to be calculated. The option is marked with an M after the layer, for example Phys. 1:Soil (M).
Cut Areas Where Layer Is Undefined¶
This option ensures that the material type is only calculated where this layer exists. The option is marked with a C after the layer, for example Phys. 1:Soil (C).
Cut Areas Where Layer Is Defined¶
This option ensures that the material type is not calculated where this layer is defined. The option is marked with CD after the layer, for example Phys. 1:Soil (CD).
Set Opposite Highest/Lowest¶
When you have several From Layers (or To Layers), you must decide whether Lowest or Highest should be set. In some cases, it is necessary to consider some of the From Layers (or To Layers) as a group and make the opposite assessment among these first. The option is active for the layer and is marked with an * in the From Layer (or To Layer) list.
This option can be difficult to explain in words, but an example may clarify it.
Example

A = Surface Layer, B = Foundation Layer, C = Soil, D = Rock
The material type is defined as follows:

Restriction Layer If It Exists in Profile¶
If the layer exists in the profile, it is used as a restriction layer. The option is marked with an R after the layer, for example Phys. 1:Soil (R).
Reverse Layer Direction¶
The positive direction in a layer (where the points are sorted) is from left to right. You can reverse the direction of the layer with this option. This is used, for example, in connection with material types for tunnels. The option is marked with a dash - after the layer, for example Phys. 1:Soil (-).