gistfile1.txt

import shortuuid

@view_config(route_name='home_page', renderer='templates/edit.pt')
def home_page(request):
    if 'form.submitted' in request.params:
        name= request.params['name']
       
        input_file=request.POST['stl'].file
        vertices, normals = [],[]
        for line in input_file:
            parts = line.split()
            if parts[0] == 'vertex':
                vertices.append(map(float, parts[1:4]))
            elif parts[0] == 'facet':
                normals.append(map(float, parts[2:5]))

        ordering=[]
        N=len(normals)


        for i in range(0,N):
            p1=vertices[3*i]
            p2=vertices[3*i+1]
            p3=vertices[3*i+2]

            x1=p1[0]
            y1=p1[1]
            z1=p1[2]

            x2=p2[0]
            y2=p2[1]
            z2=p2[2]

            x3=p3[0]
            y3=p3[1]
            z3=p3[2]

            a=[x2-x1,y2-y1,z2-z1]
            b=[x3-x1,y3-y1,z3-z1]

            a1=x2-x1
            a2=y2-y1
            a3=z2-z1
            b1=x3-x1
            b2=y3-y1
            b3=z3-z1

            normal=normals[i]

            cross_vector=[a2*b3-a3*b2,a3*b1-a1*b3,a1*b2-a2*b1]
            dot=reduce( operator.add, map( operator.mul, cross_vector, normal))

            if dot>0:
                ordering.append([3*i,3*i+1,3*i+2])
            else:
                ordering.append([3*i,3*i+1,3*i+2])

        data=[vertices,ordering]
        jsdata=json.dumps(data)
        renderer_dict = dict(name=name,data=jsdata)
        url=shortuuid.uuid()
        html_string = render('tutorial:templates/view.pt', renderer_dict, request=request)
        s3=boto.connect_s3(aws_access_key_id = 'AKIAIJEXF25B6H5F4L7Q', aws_secret_access_key = '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' )
        bucket=s3.get_bucket('alexmarshalltest')
        k=Key(bucket)
        k.key='%(url)s' % {'url':url}
        k.set_contents_from_string(html_string, headers={'Content-Type': 'text/html'})
        k.set_acl('public-read')

        return HTTPFound(location="https://s3.amazonaws.com/alexmarshalltest/%(url)s" % {'url':url})

    return {}