**Inspection panel** for Face
+The shapes information, equal to the provided Inspection panel information on the shape is accessible inpython API by usage of **shapeInfo** command:
+
+ | *from salome.shaper import geom*
+ | *geom.shapeInfo(vertex)*
+ | *==> ('Vertex', 0.0, 0.0, 10.0)*
+
+
.. _hidefaces_panel:
Hide Faces panel
Two view windows
+The viewer is able to show direction of edges of objects.
+
+.. figure:: /images/edges_directions.png
+ :align: center
+
+ Showing the edges direction
+
The description of OCC 3D Viewer architecture and functionality is provided in GUI module user's guide in chapter **OCC 3D Viewer**.
.. _parameter_usage:
General tab
^^^^^^^^^^^
-This tab defines what parts to be activated and what elements to be visible after opening a study or a script.
+This tab defines behavior of Parts and displayed objects on creation or opening of a study, or loading python scripts.
.. figure:: /images/general_preferences.png
:align: center
**Input fields**:
+- **Create new part** flag. If it is enabled, an empty part is created on a study creation.
+
- **Activate** relates to activation of part when opening a HDF document. Its could be one of the following:
- "Last part" - activate last part in the document (**default value**);
- **Sketch fully constraint color** selects default color for a sketch with zero degrees of freedom.
- **Zoom trihedron arrows** if this control is checked then arrows of a view trihedron will be scaled according to current view scale
- **Axis arrow size** relative size of trihedron arrows. It has effect only in case if **Zoom trihedron arrows** is On.
+- **Enable automatic rotation** enables the perpetual rotation animation in the viewer.
To redefine any color click on the corresponding line to access **Select color** dialog box
- **Size** defines size of coordinate planes;
- **Thickness** defines thickness of coordinate plane borders;
-- **Rotate to plane when selected** check-box turns on/off automatic switch the viewer to the top view for the selected sketch plane.
+- **Rotate to plane when selected** check-box turns on/off automatic switch the viewer to the top view for the selected sketch plane;
- **Angular tolerance** defines defines an angular tolerance for automatic creation of horizontal and vertical constraints;
- **Default spline weight** defines default weight for B-spline nodes during creation. The default value can be changed by editing of the spline;
-- **Cursor for sketch operation** defines a cursor which indicates a launched sketcher sub-operation.
+- **Cursor for sketch operation** defines a cursor which indicates a launched sketcher sub-operation;
- **Create sketch entities by dragging** defines a style of sketch etities creation. It concerns creation of lines, rectangles, circles, arcs, ellipses, elliptic arcs. If it is switched ON then points of objects have to be defined by mouse press - mouse move - mouse release. Otherwise every point of an object has to be defined by mouse click;
+- **Allow automatic constraint substitution/remove** allows automatic resolving of conflicting constraints.
+ The following conflicts could be processed:
+ - Horizontal/Vertical automatic constraints (this last constraint will be removed);
+ - Pair of arcs connected smoothly, which centers are coincident (Tangency between arcs will be removed);
+- **Notify automatic constraint substitution/remove** defines a message box to be shown to the user, if the conflicting constraints situation is automatically resolved.
.. _viewer_preferences:
