What is Within Page Gamut?
Within Page Gamut is the distance between the CIE_Lab Request and the three color page. If the Within Page Gamut is negative then the CIE_Lab Request is on the page, the Recipe is valid, and we indicate this with a Yes. If the Within Page Gamut is positive then the Recipe is off the page, and we indicate this with a No. Within Page Gamut is calculated as the difference between (the distance of the CIE_Lab Request to the Center of the Page), and (the distance of the Closest Surface Point on the Page to the Center of the Page). If this difference is positive then the CIE_Lab Request is further away from the Center than the Closest Surface Point, indicating that the CIE_Lab Request is out of Gamut on this page. If the difference is negative then the CIE_Lab Request is within Gamut on this page. Note that the Recipes on each page are sparsely sampled, so that a small Gamut number (<= 1.5), may still be within Gamut on the page. If the Within Page Gamut is positive then the Recipe Returned
