> For the complete documentation index, see [llms.txt](https://docs.dietrichs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dietrichs.com/dietrichs-intelligent-documentation/docs-de-en/2d-auxiliary-geometry/bearbeitungsfunktionen/eckausbildung.md).
# Corner formation
## Corner
The "Corner" command connects two lines into a closed corner. The selected lines are adjusted or trimmed to form a corner depending on the situation. If the lines are to be trimmed at a corner, click on the portion of each line that should be retained.
Blue: original line
Black: result
Square with cross: clicked location
## Chamfer
The "Chamfer" function can be applied only to lines and not to circular arcs, unlike the Corner function.
The chamfer consists of an additional line that connects the two selected lines. The two selected lines are extended or shortened so that they can be connected by the chamfer (additional line). If the selected lines intersect, they are automatically shortened. In that case, the side of the line that was clicked is preserved.
The chamfer inherits the properties (color, line type, line weight, layer) of the first selected line.
This connecting line (chamfer line) can be positioned and sized in three ways:
### Line lengths:
Specify the lengths (L1, L2) by which the two selected lines must be shortened from their intersection. These two points are connected by the chamfer.
### Chamfer length:
Specify the chamfer length (F); this line segment is placed angle-bisecting between the two selected lines.
### Chamfer length and line length:
Specify the chamfer length (F); this line segment is placed between the two selected lines such that the first-selected line must be shortened by a specified amount (L1), measured from the intersection of the two lines.
## Fillet
The "Fillet" function can be applied only to lines and not to circular arcs, unlike the Corner function.
The fillet consists of an arc that connects the two selected lines so that the lines are tangent to the arc. The two selected lines are extended or shortened so that they can be connected by the arc. If the selected lines intersect, they are automatically shortened. In that case, the side of the line that was clicked is preserved.
The arc inherits the properties (color, line type, line weight, layer) of the first selected line.
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