Learning Forum

[Jimmy]

I want to use "select.xxx", or other script to chose all surfaces and extrude them. How can I use "select script" properly? select.SelectAll() doesn't work. 

Python Script, API Version = V23

import math

B_W=Parameters.Block_Width
B_L=Parameters.Block_Length

r=Parameters.Block_radius
thickness=Parameters.Block_extrusion

circular_radius = MM(r)*1000  
circle_pitch = MM(r) * 3 * 1000  

start_x = -B_W/2+circle_pitch/2
start_z = -B_L/2+circle_pitch/2

num_circles_x=int(math.ceil(B_W/circle_pitch))
num_circles_z=int(math.ceil(B_L/circle_pitch))

surfaces=[]

for i in range(num_circles_z): 
    for j in range(num_circles_x): 
         circle_x=start_x + j*circle_pitch
         circle_z=start_z + i*circle_pitch
         circle = CircularSurface.Create(r, Direction.DirY,
                                   Point.Create(circle_x, 0, circle_z))
         surfaces.append(circle)

selection = Selection.Create(FaceSelection.SelectAll())

options = ExtrudeFaceOptions()
options.ExtrudeType = ExtrudeType.Add
result = ExtrudeFaces.Execute(selection, thickness, options)

 

[mjmiddle]

The format of the following command is incorrect:

selection = Selection.Create(FaceSelection.SelectAll())

The FaceSelection() function already creates a selection type, so just do:

selection = FaceSelection.SelectAll()

Also, for later use, you'll want to get the DesignBody or DesignFace from the CircularSurface() function:

circlebody = circle.CreatedBodies[0]

circleface = circle.CreatedBodies[0].Faces[0]

 

[Jimmy]

Thank you very much indeed. But I still have an error message below,

'Selection must be a Face.' in result = ExtrudeFaces.Execute(selection, thickness, options)

seclection=FaceSelection.SelectAll() means surface selection as Face? Or is there any method to change surface to Face?

[mjmiddle]

You can see what you have by running the following:

for geom in selection.Items:
    print str(geom.GetType())

It looks the SelectAll() method under the FaceSelection class just selects all objects. It does not just select only DesignFace type. You could loop through all bodies and faces and build a list of faces. But it seems your script is supposed to operate on the circle you just created, so why not just use what the CircularSurface.Create() just created?:

circle = CircularSurface.Create(r, Direction.DirY, Point.Create(circle_x, 0, circle_z)
circleface = circle.CreatedBodies[0].Faces[0]
surfaces.append(circleface)

Once the loop is done:
selection = Selection.Create(surfaces)

[Jimmy]

Thank you very much indeed.