Draw a rainbow—use what you know about colors, pixels, and drawing operations to draw a rainbow. Is this easier to do with our drawing functions or by manipulating individual pixels? Why?

Question

Without knowing about the addOvalFilled function by checking through the JES helper functions, this problem is much more difficult, as below:

Answer 1

```

def drawRainbow():

canvas = makeEmptyPicture(21,20)



makeArc(canvas,7, 7, red)

makeArc(canvas,7, 8, orange)

makeArc(canvas,7, 9, yellow)

makeArc(canvas,7, 10, green)

makeArc(canvas,7, 11, blue)

makeArc(canvas,7, 12, makeColor(255,0,255))



show(canvas)

return canvas;



def makeArc(src, x, y, color):

setColor(getPixel(src,(x),y),color)

setColor(getPixel(src,(x+1),y-1),color)

setColor(getPixel(src,(x+2),y-2),color)

setColor(getPixel(src,(x+3),y-2),color)

setColor(getPixel(src,(x+4),y-2),color)

setColor(getPixel(src,(x+5),y-1),color)

setColor(getPixel(src,(x+6),y),color)

```