feat(core): Orhtographic fitBounds()

[ibgreen]

Closes #

Background

For discussion...

• We don't seem to have fitBounds() for our non-geospatial views, so I created one for Orthographic views.
• My first thought was to follow WebMercatorViewport and add a OrthographicViewport.fitBounds(),
• but that would be rather awkward in use, since I need this function for updating viewState not viewports
• and viewports have a lot of "irrelevant" props that makes extracting viewState props from them feel hacky.

Change List

[coveralls]

coverage: 91.638% (+0.006%) from 91.632%
when pulling 159ded6 on ib/orthographic-fitbounds
into a1300ab on master.

[felixpalmer]

WebMercator fitBounds just calls imports the implementation from math.gl, perhaps better to do the same here?

[felixpalmer]

A bit nervous about these infinities, could we cap the zoom?

[ibgreen]

WebMercator fitBounds just calls imports the implementation from math.gl, perhaps better to do the same here?

Yes perhaps math.gl is the best place. But not immediately clear how to do it / where to put it.

• There is a long legacy behind the web-mercator code, which was a completely independent module, then moved into math.gl, then decomposed so that deck can build its own viewport from its primitives.
• But there isn't any natural module or support for other viewports, apart from things like Matrix4.ortho() in the core module.
• Should there be a new math.gl/views module that provides such things for a variety of view types?

[ibgreen]

I did not find a natural way to expose this function at this time.
I have landed this in deck.gl-community where we can iterate a bit more before potentially upstreaming it to deck.gl or perhaps math.gl