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DRAWING MODESA number of object types have additional drawing modes, where you can fix their LCS center. These objects are: *Box*Pyramid*Rectangle Strip*Ellipse Strip*Line*Super-Quadratic Curve Of the above list, box, pyramid, rectangle strip, ellipse strip and super-quadratic curve (i.e. all but line) have fixed centers by default. This means that when you draw these objects or later edit them, the coordinates of their LCS centers remains fixed. As a result, as you draw the base of a box or a pyramid in the XY plane, or as you draw a rectangle strip, an ellipse strip or a super-quadratic curve in the XY plane, the dimensions of the object expand or shrink in equal amounts along the ±X-axis, and so do they along the ±Y-axis.  Â
You can toggle between vertex, edge or face drawing modes by pressing the B key (after the first point has been established). Side length is determined by triangulating the mouse position relative to the anchor point or centroid. When in vertex draw mode, the first point drawn defines the corner anchor vertex of the superquad. As you drag the mouse away from this anchored vertex, the superquad's boundaries radiate outward. When in edge draw mode, the first point drawn defines the anchored edge of the superquad. As you drag the mouse away from the starting edge, the top and bottom perpendicular sides and the side opposite the anchored edge expand outward in all directions. When in face draw mode, the first point drawn defines the face centroid of the superquad. As you drag the mouse away from the centroid, the superquad's boundaries radiate outward from this centroid.