function Dxy(currentPoint,dx,dy)
{
    let newPoint = [];
    newPoint[0]  = currentPoint[0] + dx;
    newPoint[1]  = currentPoint[1] + dy;
    return newPoint
}

function Dx(currentPoint,dx)
{
    let newPoint = [];
    newPoint[0]  = currentPoint[0] + dx;
    newPoint[1]  = currentPoint[1] ;
    return newPoint
}

function Dy(currentPoint,dy)
{
    let newPoint = [];
    newPoint[0]  = currentPoint[0];
    newPoint[1]  = currentPoint[1] + dy;
    return newPoint
}

let fingerDepth     = 22;   // how far the prongs stick into the radiator
let fingerSpace     = 16;   // the width of the radiator elements, hence space between fingers
let fingerThickness = 8;    // the thickness of the fingers or prongs that stick into the radiator

let handDepth       = 22;
let handleLength    = 90;
let handleWidth     = 30;
let handleDist      = ((5 * fingerThickness + 4 * fingerSpace)-handleWidth) / 2;
let fingerRadius    = 2;
let handRadius      = 8;
let handleThickness = 10;
let holeRadius      = 6;
let firstHoleY      = 8;
let holeChamfer     = 1;

let p0 = [0,0];



// finger 1
let p1 = Dy(p0, fingerDepth);
let p2 = Dx(p1, fingerThickness);
let p3 = Dy(p2,-fingerDepth);
let p4 = Dx(p3, fingerSpace); 

// finger 2
let p5 = Dy(p4, fingerDepth);
let p6 = Dx(p5, fingerThickness);
let p7 = Dy(p6,-fingerDepth);
let p8 = Dx(p7, fingerSpace); 

//finger 3
let p9 = Dy(p8, fingerDepth);
let p10 = Dx(p9, fingerThickness);
let p11= Dy(p10,-fingerDepth);
let p12= Dx(p11, fingerSpace); 

//finger 4
let p13 = Dy(p12, fingerDepth);
let p14 = Dx(p13, fingerThickness);
let p15= Dy(p14,-fingerDepth);
let p16= Dx(p15, fingerSpace); 

//finger 5
let p17 = Dy(p16, fingerDepth);
let p18 = Dx(p17, fingerThickness);
let p19 = Dy(p18,-fingerDepth);

// hand and handle
let p20 = Dy(p19,-handDepth);
let p21 = Dx(p20, -handleDist);
let p22 = Dy(p21, -handleLength);
let p23 = Dx(p22,-handleWidth); 
let p24 = Dy(p23, handleLength);
let p25 = Dx(p24, -handleDist);
let p26 = Dy(p25, handDepth);

// sketch of contour
let cleanerContour = new Sketch(p0)
.LineTo(p1).Fillet(fingerRadius)
.LineTo(p2).Fillet(fingerRadius)
.LineTo(p3).Fillet(fingerRadius)
.LineTo(p4).Fillet(fingerRadius)
.LineTo(p5).Fillet(fingerRadius)
.LineTo(p6).Fillet(fingerRadius)
.LineTo(p7).Fillet(fingerRadius)
.LineTo(p8).Fillet(fingerRadius)
.LineTo(p9).Fillet(fingerRadius)
.LineTo(p10).Fillet(fingerRadius)
.LineTo(p11).Fillet(fingerRadius)
.LineTo(p12).Fillet(fingerRadius)
.LineTo(p13).Fillet(fingerRadius)
.LineTo(p14).Fillet(fingerRadius)
.LineTo(p15).Fillet(fingerRadius)
.LineTo(p16).Fillet(fingerRadius)
.LineTo(p17).Fillet(fingerRadius)
.LineTo(p18).Fillet(fingerRadius)
.LineTo(p19)
.LineTo(p20).Fillet(handRadius)
.LineTo(p21).Fillet(handRadius)
.LineTo(p22).Fillet(handRadius)
.LineTo(p23).Fillet(handRadius)
.LineTo(p24).Fillet(handRadius)
.LineTo(p25).Fillet(handRadius)

.LineTo(p0)
.End(true).Face(true);

// Extrude contour and bevel edges
handle = Extrude(cleanerContour,[0,0,handleThickness]);
handle = FilletEdges(handle,fingerRadius,[2,3]);

// define centers for holes to make handle lighter

let c1 = [(handleDist + handleWidth/2), -holeRadius * firstHoleY, -0.5*handleThickness];
let c2 = [(handleDist + handleWidth/2), -holeRadius * (firstHoleY + 3),-0.5*handleThickness];
let c3 = [(handleDist + handleWidth/2), -holeRadius * (firstHoleY + 6),-0.5*handleThickness];
let c4 = [(handleDist + handleWidth/2), -holeRadius * (firstHoleY + 9),-0.5*handleThickness];


let holeCylinder = Cylinder(holeRadius,handleThickness*2);

let hole_01 = Translate(c1,holeCylinder);
let hole_02 = Translate(c2,holeCylinder);
let hole_03 = Translate(c3,holeCylinder);
let hole_04 = Translate(c4,holeCylinder);

handle_light = Difference(handle,[hole_01,hole_02,hole_03,hole_04],false,0.2,false);
handle_light = ChamferEdges(handle_light,holeChamfer,[53,54,55,56,96,97,98,99]);