Creating and Managing Surfaces

  This chapter deals with surface creation and management using the FreeStyle Shaper workbench.
  See also the FreeStyle Dashboard tools as they affect the curve creation and modification, see Dashboard Toolbar.
Manipulate surfaces: select a surface, drag and drop the compass onto it, move the surface along the compass axes.
Rotate a surface: select a surface, drag and drop the compass onto it, select, hold and glide on one of the compass' arc of circle
Create planar patches: use the compass to define the creation plane, click two points.
Create a surface from three points: click two points, drag the pointer and click a third point.
Create a surface from four points: click at least three points on existing geometry and a fourth point.
Create a surface on an existing surface: select a surface, click a point, drag the pointer over the surface and click another point still on the surface. 
Extrude a surface: select a curve, set the extrusion direction and value.
Create revolution surfaces: select a profile, a rotation axis, and define the angular limits of the revolution surface.
Offset surfaces: select a surface, specify the offset type (simple or variable), the offset value and constraints to be taken into account when offsetting (deviation tolerance, maximum orders, etc.).
Extrapolate a surface: select a surface boundary, specify the extrapolation type and value.
Create blend surfaces: click an edge on two surfaces, set the display options allowing the modifications of continuities and tensions, manipulate the coupling points defining the blend.
Create an ACA Fillet: click the icon and select two edges.
Create filling surfaces: select contiguous surface boundaries forming a closed contour, or close it by clicking OK.
Create associative filling surfaces: select contiguous surface boundaries forming a closed contour, or close it by clicking OK.
Perform symmetry on geometry: select an element, then a point, line, or plane as reference element.
Edit a surface boundary: select a surface boundary and edit it using its control points.
Use Manipulators: select a manipulator, move it close to geometry to detect another point to be used for projection or snap onto it, using auto-detection capabilities.
Match surfaces: select a surface edge and a boundary on another surface, specify the matching parameters using manipulators on coupling and control points, and the contextual menu to set continuities and tensions. 
Multi-side matching: successively select a surface edge and its target curve on another surface, specify the matching parameters, and use the contextual menu to set continuities or surface order.
Extend a surface: select a surface boundary, specify the extension type and value.
Break Surfaces: click the icon and select the part of the surface to be removed.
Restore a surface: select the surface to be restored and click the icon.
Concatenate surfaces: select a two-cell surface, or two separate surfaces, and set the tolerance value.
Fragment surfaces: select a surface and specify the breaking options.

Disassemble elements: select a multi-cell element, and choose the disassembling mode.

Approximate/segment procedural surfaces: select a surface, specify the approximation tolerance, and the resulting surface maximum orders and/or segments
Copy geometric parameters: select the template curve and select the target curves.
Create a Continuity Constraint: click the Continuity Constraint icon and select the elements to be connected.