Add a moveTo() function in implicit and star shapes

[akrah]

PR Description

Add the ability to move the shape center in DGtal/shapes/parametric and DGtal/shapes/implicit packages.

Checklist

• Unit-test of your feature with Catch.
• Doxygen documentation of the code completed (classes, methods, types, members...)
• Documentation module page added or updated.
• New entry in the ChangeLog.md added.
• No warning raised in Debug cmake mode (otherwise, Travis C.I. will fail).
• All continuous integration tests pass (Travis & appveyor)

[dcoeurjo]

Looks ok.. could you please add a short unit test and a changelog entry ?

Up to you but you could also update the shape module page..

[akrah]

About the unit test, do you prefer:

• a test file per shape that test all methods of one shape?
• a test file per method that test one method for all shapes?

[dcoeurjo]

I would say a single test file for all shapes /methods.. with different test cases.

[akrah]

Travis failed with his message:

E: There were unauthenticated packages and -y was used without --allow-unauthenticated

and these apt warnings:

W: GPG error: http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1E9377A2BA9EF27F
W: The repository 'http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu trusty InRelease' is not signed.
W: There is no public key available for the following key IDs: 1E9377A2BA9EF27F
W: http://ppa.launchpad.net/couchdb/stable/ubuntu/dists/trusty/Release.gpg: Signature by key 15866BAFD9BCC4F3C1E0DFC7D69548E1C17EAB57 uses weak digest algorithm (SHA1)
W: GPG error: https://packagecloud.io/github/git-lfs/ubuntu trusty InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6B05F25D762E3157
W: The repository 'https://packagecloud.io/github/git-lfs/ubuntu trusty InRelease' is not signed.
W: There is no public key available for the following key IDs: 6B05F25D762E3157

Is it a Travis configuration error? I think I cannot address this problem in this PR.

[akrah]

@dcoeurjo All looks good for me now.

[dcoeurjo]

allright. thx

[dcoeurjo]

All good thnaks