create an array which varies according to an index

I was wondering if there is a way to make an array variable with an integer in is name.

When I indicate a point in autocad/vba I have to use an array.

Dim pt1(0 To 2) As Double
pt1(0) = x
pt1(1) = y
pt1(2) = z

If I want to write a loop for...next, according to a set of values contained in some textboxes and put into another array, I can not change to the index of the point (pt1, 1 is the index).

Let me explain.

If I want to draw circles whose centers x coordinate are placed in 3 textboxes, I can draw them one at a time or can I try to write a for loop next.

Dim txt(1 To 3) As Double
txt(1) = TextBox1.Text
txt(2) = textbox2.Text
txt(3) = textbox3.Text

Dim pt1(0 To 2) As Double
Dim pt2(0 To 2) As Double
Dim pt3(0 To 2) As Double

Dim K As Integer

Dim circ(1 To 3) As AcadCircle


For K = 1 To 3
ptK(0) = txt(K)
ptK(1) = 100
Set circ(K) = ThisDrawing.ModelSpace.AddCircle(ptK, 6)
Next K

The problem is that VBA does not recognize ptK as a depending of the index K.

Variable names can not be processed in that way. I may not grasp the full scope of the problem but it seems like this produces the desired result.

 
Dim Pt(2) as Double
Dim circ(2) As AcadCircle
Dim i as Integer

For i = 0 to 2
           Pt(0) = txt(i + 1)
           Pt(1) = 100
           Pt(2) = 0
           Set circ(i) = ThisDrawing.ModelSpace.AddCircle(Pt, 6)
Next