Sketcher is the instrument of building sketch (outline). It allows to input
geometric primitive in CAD-system. The input iz realize with mouse. Clicking
on left mouse button handling as input event. In mouse moving entering object
is redraw, so It allows to control object position before it’s final input.
Clicking on right mouse button handling as cancel event. All current action
Possible geometric primitives are:
Circle input allows as follows:
Arc input allows as follows:
It allows for sketcher to work at polyline mode. At this mode input of line continuously reslize, i.e. end point of first line is start point of second line. At this mode enteiring arc tangent to last entering object.
It allows for sketcher to input objects with snap to existing points/objects.
Sketcher allow to edit entering objects. All properties shows in dialog window.
User can change properties and it’s modify objects and it’s representation.
Entering objects store at object list. It allows to export or import list to Sketcher.