Camera space/sky interaction

[bagnell]

I re-added the ability to rotate the camera around the globe when the mouse position doesn't pick the globe. Also, the mode switches, at a height close to terrain (configurable), to looking around the camera when the mouse doesn't pick terrain.

[emackey]

This is awesome stuff @bagnell. @pjcozzi do you want to look at the code before merge?

[mramato]

Usability issue:

1. Start Viewer
2. Rotate by clicking and dragging the mouse in space
3. If you drag through the earth, the rotation stops the moment you are off the earth. Shouldn't it switch modes again?

[pjcozzi]

CC #1060

[bagnell]

Usability issue:

1. Start Viewer
2. Rotate by clicking and dragging the mouse in space
3. If you drag through the earth, the rotation stops the moment you are off the earth. Shouldn't it >switch modes again?

@mramato How's that? The camera will stay in whatever mode it started in.

[pjcozzi]

If I keep dragging in the sky to look up, I can flip the scene upside down:

[pjcozzi]

Should middle-mouse drag also do this? Now, we tilt with middle-mouse drag and then tilt again with left-mouse drag?

[pjcozzi]

Does this also work for touch events? If not, no need to do it now unless it is trivial, but let's submit an issue for it.

[pjcozzi]

Perhaps not related to this branch (submitting a separate issue is fine), but go into Columbus View and then use the middle-mouse to go under the map:

[pjcozzi]

Is this supposed to work in Columbus view? The map quickly disappears and then because awkwardly tilted.

[pjcozzi]

@bagnell can you include this in the camera animated gif(s) for the 1.0 release blog? CC @shunter

[pjcozzi]

Just those issues. Code looks fine. I really dig this.

[mramato]

@mramato How's that? The camera will stay in whatever mode it started in.

Much better.

[emackey]

I don't mind the upside-down flip. It feels like the user was really asking for it.

[bagnell]

@pjcozzi This is ready. I'm submitting issues for touch events and tilting under the map in Columbus view. The tilting under the map is still there because I'm using the old code for tilting when the camera height is greater than the height for picking terrain.

[pjcozzi]

Did you try this?

Should middle-mouse drag also do this? Now, we tilt with middle-mouse drag and then tilt again with left-mouse drag?

[pjcozzi]

Should middle-mouse drag also do this? Now, we tilt with middle-mouse drag and then tilt again with left-mouse drag?

Looks good. Not sure what I did to miss it.

[pjcozzi]

@bagnell update CHANGES.md and this is ready.

[bagnell]

@bagnell update CHANGES.md and this is ready.

@pjcozzi Done.