how to transform curve to flat

Is possible to transform arc to flat with the same linear dimensions?

https://drive.google.com/drive/folders/1uZeM-VaSROvC1akP-QMVFiJRIlRAYNQ-

Do you mean to get the length of an arc?

Just click to select it. Its length will be shown as "selected length"   in the status bar.

ali wrote

Is possible to transform arc to flat with the same linear dimensions?

https://drive.google.com/drive/folders/1uZeM-VaSROvC1akP-QMVFiJRIlRAYNQ-

I want to select objects, choose what arc line to "flatten" with flat lane distance the same as arc length.

and transform in that way when I select whole part (bottom one) select bottom arc in result middle part is created.
when select whole part (bottom one) select middle arc in result top part is created.

now I created that manually checking arc length of many arcs.
For orthogonal lines I created additional arcs to check arc lengths. For top part I calculated what % arc was lengthen and orthogonal lines are also that % further from center.

hi ali,

with the master branch, or 2.2.2-alpha: you can double click on an entity and see its geometry info in a dialog.


For an arc, its arc length is displayed in the dialog.

ali wrote

I want to select objects, choose what arc line to "flatten" with flat lane distance the same as arc length.

and transform in that way when I select whole part (bottom one) select bottom arc in result middle part is created.
when select whole part (bottom one) select middle arc in result top part is created.

now I created that manually checking arc length of many arcs.
For orthogonal lines I created additional arcs to check arc lengths. For top part I calculated what % arc was lengthen and orthogonal lines are also that % further from center.