Merge of Bigbrain Viewer capability into main branch.

[natacha-beck]

In this PR I tried to merge everything from Lindsay work on the BigBrain viewer the code source can be found here.

For the moment you will found the bigbrain viewer under examples/bigbrain-viewer, in this way you can test the functionality.

I tried to generalize the functionality added by Lindsay and to put this one in appropriate files (see viewer.gridHelper for example). I also fixed some little stuffs in same time.

Here is some notes about what I have done during the merge process:

Integration of BBl:

Step 1 (27c91bfa7fbebe6362124a487452c11d751f0fe0):

• Take the surface-viewer-demo.js in https://github.com/aces/bigbrain-surface-viewer put in examples/bigbrain-viewer-demo.js
• Take the index.html in https://github.com/aces/bigbrain-surface-viewer put in examples/bigbrain-viewer-demo.html

Step 2 (2bf03ee260c05e06df03d604f2100b30f40648f2):

• Added missing images

Step 3 (186596028e5c5a3651a9281b2c1c72439e17981b):

• Added missing css, and *.js file for the bigbrain viewer + fix path in code.

Step 4 (2fe2ca2ab3b013f8f158f8c39961ef3af257fb6b):

• Run jshint + fix some of the warning (indentation + equality operator)

Step 5 (8fb11bc2e5461cb9a6bbf979fe293b66b1f2012c):

• More jshint fix.
• Added Bigbrain Grid in Three.js (TODO: should not be here)
• In rendering.js add some code to handle axes (TODO: should not be here)

Step 6 (1a8e11df4a096b2b53e1d5efcd18a5a927e96634):

• more fix for jshint (axes)

Step 7 (8a06fa89cd74b6c74171c7c4d1395633b56aab6f):

• Replace more for loop by forEach loop.

Step 8 (61b5009579c99ffb76fce9c686569f84b826062a):

• Add jshint rules to ignore loopfunc and eval usage
• Fixed usage of searchapes as a global variable.
• Temporary added getVertex2 in src/brainbrowser/surface-viewer.js (TODO: should not be here)
• Temporary added a version of viewer.pick_bb in src/brainbrowser/surface-viewer/modules/rendering.js (TODO: should not be here)

Step 9 (7cb489b6dd92afd4a0f147daa47665fc0a10c4bd):

• Some more fix for jshint

Step 10 (28ed43e00d48b106f64b8162ea7bb05ea14f62ea):

• Fix of Grid and fix of getVertex2

Step 11 (17ba618d014693b6b5ef805dfee1d999db8e13ae):

• Split pick_bb in 2: 1 == the old one, 2 == pick by index.
• Remove getVertex2

Step 12 (f287c9c4d619614b39ed84050cb7b3241f2ec603, bee7171fbd940a489efcebb52135474c181975e0, 0a3eb5e84c0f0d985ec834fbe50f81f26ac28db5, 99a8ad86cc64c2d66ea5fd8a9bf6b8aa9369c926 )

• Extract gridHelper.

Step 13 (7568f60e5ee6d10bce96b79daa75f28b6ce66b54):

• Fix rotation of related models

Step 14 (1bf02a0c257b53b4cc3f32827f8262c1cd9e92d4):

• Fix bug with color slider when no color available ==> provide a default

Step 15 (49be218212952b45da63aa3e019b350007bdcd85):

• Fix format and autoload issues

Here is some general comment/issue that seems to be present:

• This version cannot load *.gz files for the moment (==> with the new version off BB this should be possible)
  • I'm not sure of the comportment of BB when a user load two files with model that have the same names. Seems to be ok.
  • the viewer.gridHelper need more documentation but it's not clear for me for the moment (that is why you can see some ???)

Please let me know all yours comments, I'm sure this PR have place for improvement.

[natacha-beck]

Here is some issue reported:

• Per vertex data on FS ASC surface does not work (blank map) --> fixed.
• Wireframe button seems to be buggy (act different on brainbrowser and bigbrain). --> fixed.
• buildGrid is called when slider is used even if grid is not set. --> fixed.
• Grid lengthconflict with auto resize. --> fixed
• Having grid unable => Search for shape => clear selection == weird effect the grid is not resized. --> fixed
• The viewer failed to load compressed file. --> fixed

[natacha-beck]

At this point all the previous comments are fixed. Please take a look and let me know if you find something.

[natacha-beck]

New batch of comment from @lblewis :

• Little typo for filetype dropdown menu, "Unknow" should be "Unknown" --> fixed
• If grid / axes are on, and I then shift-click a shape, and I click on Focus, and then on Unfocus, all the grid / axes / legend disappear (they should not) --> fixed
• If I do the same as above, but this time I set Grid auto-resize toggle to Off before I click on Focus, then when I click on Unfocus, the axes and legend disappears (but not the grid) --> fixed

From @jonathanlurie :

• (from Jonathan) Some OBJ files (cars) are not loading in the BigBrainSurfaceViewer --> fixed

[natacha-beck]

Need to fix this one from @lblewis

• When I initially load in the .json, it is no longer rotating around the center of the .json!! --> should be done, not yet the case on this version.

[natacha-beck]

Fix the 'model centric' part.

[natacha-beck]

Just fix the last bug that @lblewis had mention. Please go head for a code review.

[natacha-beck]

With @jonathanlurie we have observed some strange behaviour concerning the grid. When a user manipulates the opacity of the shape, then the grid resizes, but the center of rotation stays the same; this kind of behaviour can thus generate some strange effects (this comportement is insync with @lblewis version).

[natacha-beck]

@rdvincent I just done the update, with your comments.