Using Programming Languages other than VBA

Sub Example_SliceSolid()
	' This example creates a box in model space.
	' It then slices the box based on a plane
	' defined by three points. The slice is returned
	' as a 3Dsolid.
	
	Dim boxObj As Acad3DSolid
	Dim length As Double, width As Double, height As Double
	Dim center(0 To 2) As Double

	' Define the box
	center(0) = 5#: center(1) = 5#: center(2) = 0
	length = 5#: width = 7: height = 10#

	' Create the box (3DSolid) object in model space
	Set boxObj = ThisDrawing.ModelSpace.AddBox(center, length, width, height)

	' Define the section plane with three points
	Dim slicePt1(0 To 2) As Double
	Dim slicePt2(0 To 2) As Double
	Dim slicePt3(0 To 2) As Double

	slicePt1(0) = 1.5: slicePt1(1) = 7.5: slicePt1(2) = 0
	slicePt2(0) = 1.5: slicePt2(1) = 7.5: slicePt2(2) = 10
	slicePt3(0) = 8.5: slicePt3(1) = 2.5: slicePt3(2) = 10

	' slice the box
	Dim sliceObj As Acad3DSolid
	Set sliceObj = boxObj.SliceSolid(slicePt1, slicePt2, slicePt3, True)

	' Change the viewing direction of the viewport
	Dim NewDirection(0 To 2) As Double
	NewDirection(0) = -1: NewDirection(1) = -1: NewDirection(2) = 1
	ThisDrawing.ActiveViewport.direction = NewDirection
	ThisDrawing.ActiveViewport = ThisDrawing.ActiveViewport
	ZoomAll

End Sub