What learn today about Html mapping an image

Using an editor to find the key-points to map an image to make Html with the image-map

so is need the first position that is the upper-left corner 

and the second that is the lowest-right corner

circle - is the 2 number that is the position of the center and the 3rd parameter is the radius size

About the second picture - is sum to each position just the half of the size, is that - in this image-editor the position is of the upper-left corner and not of the center of the circle but you to have the position of the center only have with the position of the corner ad the half of the size because they are the double of the radius.

Rute Bezerra de Menezes Gondim