OSNAP

The F3 key activates/deactivates the osnap mode.

To change the osnap mode:

  1. When a command ask for a point press CTRL + right mouse button to choose a different snap mode.
  2. When a command ask for a point type in the text window:
    "NONE" = no snap
    "END" = endpoints of each segment
    "END_PL" = endpoint of the entire polyline
    "MID" = midpoint
    "CEN" = center (centroid)
    "NOD" = point object
    "QUA" = quadrant point
    "INT" = intersection
    "INS" = insertion point
    "PER" = perpendicular point
    "TAN" = tangent
    "NEA" = closest point
    "APP" = apparent intersection
    "EXT" = Extension
    "PAR" = Parallel
    "INT_EXT" = intersection on extension
    "PR" = progressive distance (may be followed by a number to set a progressive distance different from default)
  3. Using the setvar command to set the OSMODE variable with a combination a bit using the following schema:
    0 = None
    1 = endpoint
    2 = midpoint
    4 = center (centroid)
    8 = point object
    16 = quadrant point
    32 = intersection
    64 = insertion point
    128 = perpendicular point
    256 = tangent
    512 = closest point
    1024 = clear all object snaps
    2048 = apparent intersection
    4096 = extension
    8192 = parallel
    16384 = osnap disabled
    65536 = progressive distance
    131072 = intersection on extension
    2097152 = endpoints of the entire polyline
  4. Run DSETTING command