Add a Roof Ladder Fixed to a Slope with the Coincidence Constraint

Add a roof ladder that automatically forms a coincidence constraint to the roof slope surface. If necessary, rotate the ladder around the z axis before positioning it so that the ladder is parallel to the desired roof slope. When you have positioned the ladder, you can relocate them accurately by adding distance constraints.,

  1. Activate the model window.
  2. Do either of the following:
    • Select Modeling | Accessory Component | Component gallery Component.
    • Right-click to open the context-sensitive menu, and select Add Furniture, Symbol, Building Group....
  3. Select the Roof Accessories/Ladders folder.
  4. Double-click the 0155 Roof ladder 2 thumbnail.
  5. Enter the length L of the ladder to the dimension table. You can change the length later.
  6. If necessary, rotate the ladder until it is in the desired direction.

  7. Move the cursor approximately to the right location on the slope and press Shift+M (snap to surface). The ladder is positioned parallel to the slope surface. A coincidence constraint is formed between the ladder and the slope.

Note:
  • You can relocate the ladder accurately by using distance constraints.
  • You can change the lenght of the ladder either by entering a new value for the parameter L in the dimension table, or by adding distance constraints between the ladder and the eaves.