Command - PrB_Ladder

     

This command allows you to draw a variety of ladders, among which :

  • Cage Ladder - First hoop larger
  • Cage ladder UPN
  • Cage Ladder
  • Ladder with Opening
  • PIP Caged Ladder


Some ladders like the PIP caged ladder require you to select 3 surface planes and 1 other geometry.

The purpose of these 4 geometries is to immediately insert the ladder at the right location with the correct start height and stop height.
And even after initially inserting, the ladder will stay connected to these 4 geometries. So when any of these geometries change, the ladder will move or change in length automatically.

These are the 4 geometries that are asked for in the command in this order :

    1. The first plane is the bottom starting location of the ladder
    2. The second plane is the position for the highest rung. This could be the top plane of a beam of the top platform.
    3. The third plane is the plane against which the ladder should be positioned or mounted.
    4. The fourth and last geometry can be a plane, a line, or a point. It determines the placement of the ladder in the last undetermined direction.

For the first 3 planes, the planes of existing beams and a column could be used.
For the fourth and last geometry, a grid line that is not parallel to plane 3 could be used (this line or plane needs to intersect with plane 3).

After the selection of the 4 geometries, the ladder should be inserted and the following dialog box is shown afterward :

In this image, you can see 6 encircled values. These 6 values still allow us to displace and rotate the ladder relative to the 4 geometries that were selected during the insertion of the ladder.