[Manish Jain]

1.4  Staircase

With staircase command we could able to draw an staircase,
1. We can access it at command prompt by typing it 
2. We pick following icon  from the construct toolbar 
3.   By selecting it in construct popup menu



As we select the staircase from menu we get following prompt on screen

 pick first corner of staircase :  (we pick starting  point  of staircase )

 pick second corner of staircase :  (we pick end point of staircase)

After pointing these points we get following dialog box for constructing a staircase. 




This dialog box have following areas for input of values :
 width of staircase :  We type here the width of staircase 
 hight  of staircase : We type here the hight of staircase 
: We select the method of calculating  tread and riser of staircase either maximum riser method or  minimum   tread method is employed.
 minimum tread of staircase : We type here the minimum tread of staircase.
 maximum riser of staircase : We type here the maximum riser of staircase
 Here  we have three way of putting the a staircase either the selected  points are in center of staircase  or at the left end or at right end of staircase 

After putting various values and selecting the method we want , staircase is constructed in drawing . Therefore we don’t required any calculation of tread and riser and escape from making each steps repeatedly one after one.
The other advantage of making an staircase from custom.CAD staircase command that the staircase in 2d and 3d are drawn in different layers.
• staircase in 2D are constructed in layer “stair2d” 
• staircase in 3D are constructed in layer “stair3d”
Our drawn staircase should now resemble to this figure :



When we turn off the layer stair2d  layer then seeing the window in NW isometric view ,our drawn staircase look something like this figure :