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Add axes #2

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opened 2019-12-11 17:37:34 +00:00 by glen · 7 comments
glen commented 2019-12-11 17:37:34 +00:00
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glen added this to the 0.2.0 milestone 2019-12-11 17:37:34 +00:00
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glen commented 2019-12-12 07:49:05 +00:00
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First pass is quite rough; the items it needs next are:

  • axis labels (x,y,z)
  • tick marks and numbering
  • Arrows (cones) at what appear to be the "ends" of the axes in the viewport
  • ticks and numbers adaptive to visible region
First pass is quite rough; the items it needs next are: * axis labels (x,y,z) * tick marks and numbering * Arrows (cones) at what appear to be the "ends" of the axes in the viewport * ticks and numbers adaptive to visible region
glen commented 2019-12-12 08:23:38 +00:00
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Should be able to grab most of what's needed for axis code from

https://github.com/bwlewis/rthreejs/blob/master/inst/htmlwidgets/scatterplotThree.js

Probably best to put the axis stuff in its own file at this point.

Should be able to grab most of what's needed for axis code from https://github.com/bwlewis/rthreejs/blob/master/inst/htmlwidgets/scatterplotThree.js Probably best to put the axis stuff in its own file at this point.
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glen commented 2019-12-12 16:55:47 +00:00
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I think I will need to go back and forth between this and the movable view. First just use the trackball controls, then come back and get this looking as nice as the transform gizmo (see eg https://github.com/mrdoob/three.js/blob/master/examples/js/controls/TransformControls.js) then try to get view manipulating "correctly" then come back and add self-adjusting ticks and labels, etc.

I think I will need to go back and forth between this and the movable view. First just use the trackball controls, then come back and get this looking as nice as the transform gizmo (see eg https://github.com/mrdoob/three.js/blob/master/examples/js/controls/TransformControls.js) then try to get view manipulating "correctly" then come back and add self-adjusting ticks and labels, etc.
glen commented 2019-12-12 19:11:05 +00:00
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Actually the code for TransformControls is right in node_modules/three

Actually the code for TransformControls is right in node_modules/three
glen commented 2019-12-13 00:54:46 +00:00
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Relevant to axis labels: https://stackoverflow.com/questions/35386729/sprite-scaling-causes-incorrect-positioning-and-rotation-in-three-js/35433819#35433819

Relevant to axis labels: https://stackoverflow.com/questions/35386729/sprite-scaling-causes-incorrect-positioning-and-rotation-in-three-js/35433819#35433819
glen commented 2019-12-13 00:55:40 +00:00
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Very nice axes for 3d plotting with R: https://github.com/bwlewis/rthreejs/blob/master/inst/htmlwidgets/scatterplotThree.js; maybe look at this for tick scaling

Very nice axes for 3d plotting with R: https://github.com/bwlewis/rthreejs/blob/master/inst/htmlwidgets/scatterplotThree.js; maybe look at this for tick scaling
glen commented 2019-12-13 00:56:29 +00:00
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Key question: how do we determine the extent of each axis? Want them to always end just inside the viewport.

Key question: how do we determine the extent of each axis? Want them to always end just inside the viewport.
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