create a bridge on mesh

Being that there are many solutions to your problem, you will need to add additional constraints before coming up with a solution. So elaborate more on what you actually need.

For example, how will you choose the two edges you want to connect? Will the space between them be clear?

With the bridge connecting them.
What resolution do you need the bridge to be?
Does the transition between the edge to the bridge have to be smooth or can the joint between the pieces be angular? Does the bridge need to be curved?

Being that there are many solutions to your problem, you will need to add additional constraints before coming up with a solution. So elaborate more on what you actually need.

>For example, how will you choose the two edges you want to connect? Will the space between them be clear?
for the moment the user select two edge of the hole.

>What resolution do you need the bridge to be?
The important it's preserving the original model features, I think I should follow the curvature of the near of the hole.
Look my link there is a picture as the bridge should be.

>Does the transition between the edge to the bridge have to be smooth or can the joint between the pieces be angular? Does the bridge need to be curved?
yes bridge need to be curved.
transition between the edge and bridge should be smooth. But the bend that the bridge have, should be realistic and preserving the shape of the model. For example can't be a simple linear interpolation.... I think I should force the curvature of the bridge in some way but I again understand how...

Is the screenshot taken from MeshLab? It's an open-source software and you can thus probably see how the feature is implemented.

Is the screenshot taken from MeshLab? It's an open-source software and you can thus probably see how the feature is implemented.

yes the screenshot but the bridge is did with another sw and it's not opensource :|