KOMPAS-3D v23

Sometimes the absolute coordinate system is not applicable or cannot be used to build parts and requires additional calculations, for example, if parts of the part are rotated in relation to the absolute coordinate system.

In such cases, you can use the local coordinate systems (LCS) to facilitate your work.

The LCS are used in the following cases:

•As the coordinate system of objects whose position and/or orientation is specified relative to the coordinate system (not relative to other model objects).

For more details on object coordinate system...

If the LCS to be created is located in the model as required, with further creation of objects in it. For example, if you need to build a broken line whose segments are located perpendicular to one another but at an angle to axes of the absolute coordinate system, you can preliminary create the LCS whose axes are parallel to segments of the future broken line and the origin coincides with its first vertex.

If the LCS is the coordinate system of the object, then this object can be moved and rotated in the absolute coordinate system of the model by changing the LCS position. To cancel dependence of the object on the LCS, transfer it to the absolute coordinate system of the model.

•To position blank parts, imported surfaces, components.

•You can use the LCS elements (the start point, coordinate planes and axes) to build the model in the same way as other point, flat or straight line objects.

For details about creating the LCS, see sections Construction of LCS relative to another LCS and Construction of LCS by object.

You can build several LCS in the model and switch between them, making the required LCS current.

When building an object, you can select the required coordinate system as the current one. It will become the coordinate system of this object. Objects constantly maintain association with their coordinate system. Therefore, you can quickly change the position of the object by changing the position of its coordinate system.

Like other objects, all LCS available in the model are displayed in the Design Tree. If displaying of model structure enabled in the Tree , then the LCS are in the Coordinate Systems section.

You can disable display of particular LCS or all coordinate systems at once in the graphic area of the model and exclude the LCS from the calculation applying the same methods you use when working with other objects (see sections Managing visibility of objects and Excluding objects from calculation).