material volume Calculation Table do not match with manuel calculation

material volume Calculation Table do not match with manuel calculation

CemilYuksel
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material volume Calculation Table do not match with manuel calculation

CemilYuksel
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Hello Everyone,

When I created Material calculation table, Fill and Cut volumes do not match with manuel calculation. I could not found reason or any solution.

I will be preciate anybody help for this.

Thank you

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Message 2 of 6

ecfernandez
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Hi @CemilYuksel, there might be precision-related issues. I would like to see how you manually computed the values. Do you have a file to give it a look at and compare the values you got from it with the ones delivered by your C3D file?

Regards!

Camilo Fernández

P.Eng | Transportation

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Message 3 of 6

CemilYuksel
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Hi @ecfernandez,

Please see file at attachment.

Thank You

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Message 4 of 6

ecfernandez
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Hi @CemilYuksel, I saw your file. I thought there was a precision issue, but there is not. The difference between the values you expect C3D to give you and the ones you have in the Excel spreadsheet is caused by the Curve Tolerance Correction you activated. Once you deactivate the Curve Tolerance Correction the values are those that you expect.

 

1. With curve Tolerance

ecfernandez_0-1712171573854.png

 

2. Without Curve Tolerance

ecfernandez_1-1712171607375.png

 

 The decimals you see result from C3D's computation with all the decimals measured in the section view. When we measure areas and compute volumes manually, we might drop a few decimal places that, in the end, make a small difference in the final result.

 

I personally don't use this curve tolerance since I have not been able to find enough material to understand how C3D does this correction. If I cannot see how the program does that, I prefer to avoid it. What I prefer is to create more sample lines to add precision to my computation instead of using curve tolerance.

 

I hope this helps. Best regards! 

Camilo Fernández

P.Eng | Transportation

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Message 5 of 6

CemilYuksel
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@ecfernandez,

Thank you very much.

Best Regards.

Message 6 of 6

ecfernandez
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Hi @CemilYuksel, I'm happy to help.

Best regards! 

Camilo Fernández

P.Eng | Transportation

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