Area Calculation problem by Fill and Zone

[Kikoria]

I am calculating one and the same area by Zone and Fill tool. First, I am using the fill tool and it shows me a particular area [35.79m2]. See photo:

Then I use the zone tool, I take the magic wand and fill the shape with zone but the output is different. [35.78m2]

The areas are identical because I used the magic want for zone to perfectly match the fill area. I need both of them in my project and this creates a huge danger in calculation. Could someone help?

[Barry Kelly]

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@Kikoria wrote:

Maybe. Strange. Because I use the magic wand tool to insert a Zone in the Fill area.

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Yes, but was the magic wand accurate?

If you used the 'flood' method, you would only need a small line across a corner to reduce the area of the zone.

As you magic wanded the zone onto the fill, and the zone area is smaller, I would suspect that there is something reducing the area of the zone by a very small amount.

If you magic wand on the perimeter of the fill, it should follow that perimeter exactly.

If you are still getting a discrepancy, then you will have to send a file to your local support for help.

Barry.

[Kikoria]

I use the fill contour while magicwanding the area. Should it be accurate?

[Barry Kelly]

If you use the fill contour (perimeter) to magic wand the zone, they should both be identical.

It seems to be working fine for me.

Do a test and create a 3125 x 1000 mm fill as I did in an empty space on your plan.

Then magic wand the fill on and see the resulting areas.

Barry.