Specifying Front curve on orders to suppliers.

The customer can specify a front curve (base) but if a front curve is not explicitly entered then the order to the lens supplier does not have a front curve specified.  Not all lens suppliers do allow a front curve to be specified but for those that do then there is an update to allow lenses to be ordered that match the lab standards.  Quite often the lens supplier chooses front curves to lenses which are made to a global standard and the standard may not be in agreement with the lab standard.

There is now the opportunity to identify lenses where they can be ordered with a particular base. This is done in the lens data and from that in the technical option at the bottom.

The base is selected from a chart basesel.ini which is placed in the "files" folder.

An example is here:

[1500]
-1000=1
-975=1
-950=1
-925=1
-900=1
-875=1
-850=1
-825=1
-800=1
-775=1
-750=150
-725=150
-700=150
-675=150
-650=150
-625=150
-600=200
-575=200
-550=200
-525=200
-500=300
-475=300
-450=300
-425=300
-400=300
-375=300
-350=400
-325=400
-300=400
-275=400
-250=400
-225=400
-200=450
-175=450
-150=450
-125=450
-100=450
-75=450
-50=450
-25=450
0=450
25=450
50=450
75=600
100=600
125=600
150=600
175=600
200=600
225=600
250=600
275=600
300=600
325=600
350=600
375=600
400=600
425=600
450=600
475=700
500=700
525=700
550=700
575=700
600=700
625=800
650=800
675=800
700=800
725=900
750=900
775=900
800=900
825=1000
850=1000
875=1000
900=1000
925=1000
950=1100
975=1100
1000=1100
1025=1100
1050=1100
1075=1200
1100=1200
1125=1200
1150=1200
1175=1300
1200=1300
[1600]
-1000=1
-975=1
-950=1
-925=1
-900=150
-875=150
-850=150
-825=150
-800=150
-775=150
-750=150
-725=150
-700=200
-675=200
-650=200
-625=200
-600=300
-575=300
-550=300
-525=300
-500=300
-475=300
-450=300
-425=300
-400=400
-375=400
-350=400
-325=400
-300=400
-275=400
-250=425
-225=450
-200=450
-175=450
-150=450
-125=450
-100=450
-75=450
-50=450
-25=450
0=450
25=450
50=450
75=450
100=600
125=600
150=600
175=600
200=600
225=600
250=600
275=600
300=600
325=600
350=600
375=600
400=600
425=600
450=600
475=600
500=600
525=600
550=700
575=700
600=700
625=700
650=700
675=700
700=700
725=800
750=800
775=800
800=800
825=800
850=900
875=900
900=900
925=900
950=900
975=1000
1000=1000
1025=1000
1050=1000
1075=1000
1100=1000
1125=1100
1150=1100
1175=1100
1200=1100
[1670]
-1000=150
-975=150
-950=150
-925=150
-900=150
-875=150
-850=150
-825=150
-800=200
-775=200
-750=200
-725=200
-700=200
-675=200
-650=300
-625=300
-600=300
-575=300
-550=300
-525=300
-500=300
-475=300
-450=400
-425=400
-400=400
-375=400
-350=400
-325=400
-300=400
-275=400
-250=450
-225=450
-200=450
-175=450
-150=450
-125=450
-100=450
-75=450
-50=450
-25=450
0=450
25=450
50=450
75=450
100=450
125=600
150=600
175=600
200=600
225=600
250=600
275=600
300=600
325=600
350=600
375=600
400=600
425=600
450=600
475=600
500=600
525=600
550=600
575=600
600=600
625=700
650=700
675=700
700=700
725=700
750=700
775=700
800=700
825=800
850=800
875=800
900=800
925=800
950=900
975=900
1000=900
1025=900
1050=900
1075=900
1100=1000
1125=1000
1150=1000
1175=1000
1200=1000
[1740]
-1000=150
-975=150
-950=150
-925=150
-900=150
-875=200
-850=200
-825=200
-800=200
-775=200
-750=200
-725=300
-700=300
-675=300
-650=300
-625=300
-600=300
-575=300
-550=300
-525=300
-500=400
-475=400
-450=400
-425=400
-400=400
-375=400
-350=400
-325=400
-300=400
-275=450
-250=450
-225=450
-200=450
-175=450
-150=450
-125=450
-100=450
-75=450
-50=450
-25=450
0=450
25=450
50=450
75=450
100=450
125=600
150=600
175=600
200=600
225=600
250=600
275=600
300=600
325=600
350=600
375=600
400=600
425=600
450=600
475=600
500=600
525=600
550=600
575=600
600=600
625=600
650=600
675=700
700=700
725=700
750=700
775=700
800=700
825=700
850=700
875=700
900=800
925=800
950=800
975=800
1000=800
1025=800
1050=900
1075=900
1100=900
1125=900
1150=900
1175=900
1200=1000