Drawing Aids

Drawing aids act as toggle switches. More than one can be selected at a time (except for GRID and the line drawing modes).
AUTO FORWARD/BACKWARD ARROW
Automatically add forward/backward arrow heads to POLYLINE, SPLINE or ARC objects.
FLIP
Invert the object (middle button) or produce a mirror-image copy of an object (left button). Point to part of the object (''the handle''), click the appropriate button.
GRID
Display either the quarter- or half-inch grids (left button).
MAGNET
Round points to the nearest 1/16 of an inch. This affects every function, and is provided as an alignment aid.
UNRESTRICTED
Allow lines to be drawn with any slope.
MANHATTAN
Enforce drawing of lines in the horizontal and vertical direction only. Both MANHATTAN and MOUNTAIN can be turned on simultaneously. The creations of POLYGON, POLYLINE and SPLINE objects are affected by these two modes.
MOUNTAIN
Enforce drawing of only diagonal lines. Both MANHATTAN and MOUNTAIN can be turned on simultaneously. The creations of POLYGON, POLYLINE and SPLINE objects are affected by these two modes.
MANHATTAN MOUNTAIN
Allow lines to be drawn at any slope allowed when in MOUNTAIN or MANHATTAN modes.
LATEX LINE
Allow lines to be drawn only at slopes which can be handled by LATEX picture environment lines: slope = x/y, where x,y are integers in the range [-6,6].
LATEX VECTOR
Allow lines to be drawn only at slopes which can be handled by LATEX picture environment vectors: slope = x/y, where x,y are integers in the range [-4,4].
ROTATE
Rotate the object (middle button) or copy (left button) +90 degrees.
SOLID/DASHED LINE STYLE
Toggle bexween solid and dashed line styles. The dash length is fixed at 0.05 inch.