﻿## 0
You can redefine the coordinate system of selected vertexes to work more conveniently with them. The coordinate system allows you to move the origin and/or to rotate XY axes. The redefined coordinate system may be also constrained to existing vertexes or to absolute coordinate system.
## 4
Selecting redefinition of the coordinate system
## 7
Vertexes selected for change of the coordinate system
## 9
Method of coordinate system redefinition
## 11
In previous step the coordinate center was selected (a corresponding vertex is marked with ‘0’). A vertex defining direction of X axis is being selected.
## 16
Selecting vertexes for constraint definition. If a vertex is selected and the vertex belongs to a group of vertexes with redefined coordinates, you cannot select vertexes with different coordinate systems – otherwise the constraints cannot be defined. In this situation, the not-selectable vertexes are redrawn in different colors.
## 20
Constraint distance is defined.
## 21
The vertexes were moved according to the newly defined constraint.
## 27
Another constraint is defined – this time for the right three vertexes. A new distance to the coordinate center is defined as shorter than the previous distance.
## 29
After performing the new constraint, vertexes were moved. Because one of them defines direction of X-axis from the previously redefined coordinate system, corresponding vertexes are transformed, too.
