.. _create_sketch_drawer:
.. |SketchDrawer.icon|    image:: images/SketchDrawer.png

Sketch Drawer
=============

Sketch Drawer featrure is a macro-feature, i.e. it is removed after its execution.
It allows simplify creation of sketches based on existing models without referencing to
these models.

For example, to create a sketch on a planar face from an existing STEP file model
and then remove the original model, to keep only the sketch with copy of contour. So, to be
able to remove the initial model, there are no references created by this feature.

To add a new Sketch Drawing:

#. select in the Main Menu *Macros - > Sketch drawer* item  or
#. click |SketchDrawer.icon| **Sketch drawer** button in Macros toolbar:

The following property panel appears:

.. figure:: images/SketchDrawer_panel.png
   :align: center

   Sketch drawer

Click in the view once to set the whole original model, then click a second time to set the
plane or planar face - a base of sketch. This can be plane on the original model.

Flag "Create dimensions" allows to disable creation of dimensional constraints in the resulting sketch.
So, if it is disabled, then lengths and radiuses will be omitted. It allows to avoid overconstraint
situation and simplify work of the sketch solver.

On Apply button press the new sketch will be created in the Object Browser tree.

Result
""""""

A resulting sketch will contain linear and circular edges as well as circular arcs corresponding to the
original model edges that lay in the sketch plane. Other types of edges are not supported.

Radius, length, vertical, horizontal and points-coincidence constraints will be created
automatically where it is possible. The resulting sketch may be overconstrained or not fully
constrained. So, it is just a helper for the sketch creation, not universal tool. After this
sketch creation normally user must edit this sketch to input reasonable constraints and
parametrization, or remove not needed constraints or sketch lements.

.. figure:: images/SketchDrawer_res.png
   :align: center

   Drawn sketch