test

blender_loft2.py

#      filename = "PWD/blender_loft.py"
#      exec(compile(open(filename).read(), filename, 'exec'))

import bpy
import bpy_extras
import numpy
from mathutils import Matrix

# Create a spline/bezier from a list of points
def new_curve_from_points(pLists, name_prefix):
    curve_data = bpy.data.curves.new(name_prefix + 'CurveToLoft', 'CURVE')
    curve_data.dimensions = "3D"
    obj = bpy.data.objects.new(name_prefix + 'CurveToLoft', curve_data)
    bpy.context.scene.objects.link(obj)

    for plist in pLists:
        spline = curve_data.splines.new('BEZIER')
        npts = len(plist)
        spline.bezier_points.add(npts - 1) 
        for i in range(0, npts):
            spline.bezier_points[i].co = plist[i]

    return obj

def get_point_lists():
    print('hello')
    p0 = [[1, 0, 0], [0, 0, 0], [0, 1, 0]]
    p1 = [[1, 1, 0], [0, 1, 0], [0, 0, 1]]
    return [p0, p1]

def loft(curves):
    obj = new_curve_from_points(curves, 'joined_curves')
    obj.select = True

    # create a mesh to store the final surface
    me = bpy.data.meshes.new("outputLoft")
    ob = bpy.data.objects.new("outputLoft", me)
    scn = bpy.context.scene
    scn.objects.link(ob)
    scn.objects.active = ob
    ob.select = True

    # curves + object should be selected
    # call lofting
    bpy.ops.object.mode_set('INVOKE_REGION_WIN', mode='EDIT', toggle=True)
    bpy.ops.mesh.reveal()
    bpy.ops.gpencil.surfsk_add_surface('INVOKE_DEFAULT')

if __name__ == "__main__":
    pLists = get_point_lists()
    loft(pLists)

blender_loft4.py

#      filename = "PWD/blender_loft.py"
#      exec(compile(open(filename).read(), filename, 'exec'))

import bpy
import addon_utils

addon_utils.enable('mesh_bsurfaces')

def add_curve(location):
    bpy.ops.curve.primitive_bezier_curve_add()
    obj = bpy.context.object
    obj.location = location
    return obj

def main():
    obj1 = add_curve((0,0,0))
    obj2 = add_curve((0,1,3))
    obj3 = add_curve((0,0,6))

    # In case this code is run after a bunch of other code we want to 
    # ensure the state of the scene
    # :: deselect everything. no active either.
    bpy.ops.object.select_all(action='DESELECT')
    obj1.select = True
    obj2.select = True
    obj3.select = True
    bpy.ops.object.join('INVOKE_DEFAULT')

    me = bpy.data.meshes.new("outputLoft")
    ob = bpy.data.objects.new("outputLoft", me)
    scn = bpy.context.scene
    scn.objects.link(ob)
    scn.objects.active = ob
    ob.select = True

    # curves + object should be selected
    # call lofting
    bpy.ops.object.mode_set(mode='EDIT')
    bpy.ops.mesh.reveal()
    bpy.ops.gpencil.surfsk_add_surface('INVOKE_DEFAULT')

if __name__ == "__main__":
    main()