osmwp.github.com/development_node_CoordinateInterpolator2D.html at master · osmwp/osmwp.github.com · GitHub

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<h1 class="title">CoordinateInterpolator2D node</h1>

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CoordinateInterpolator2D {
  SFFloat set_fraction 0
  MFVec2f value_changed []
  MFFloat key []
  MFVec2f keyValue []
}
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<p>
This interpolator is used to interpolate arrays of 2D coordinates.<br/>
See <a href="development_node_Interpolators.html">Interpolators</a> for a
detailed explanation on how interpolators work and when to use them.
</p>

<p class="note check">
<b>Note</b>:<br/>
The <a href="development_node_CoordinateInterpolator2D.html">CoordinateInterpolator2D</a>
outputs <b>MFVec2f</b> values to the <b>value_changed</b> field, you might want
to look at the <a href="development_node_PositionInterpolator2D.html">PositionInterpolator2D</a>
if you want <b>SFVec2f</b> values.
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<p>
<b>SFFloat set_fraction 0</b>:<br/>
Change this <b>set_fraction</b> field (between 0 to 1) to make the interpolator
compute a new value.<br/>
Value usually routed from the <a href="development_node_TimeSensor.html">TimeSensor</a>.fraction_changed
field. See <a href="development_node_Interpolators.html">Interpolators</a>.
</p>

<p>
<b>MFVec2f value_changed []</b>:<br/>
When a new array of coordinates is computed from the
<a href="development_node_CoordinateInterpolator2D.html">CoordinateInterpolator2D</a>,
it is sent to the <b>value_changed</b> field.
</p>

<p>
<b>MFFloat key []</b>:<br/>
List of float values between 0 and 1. See
<a href="development_node_Interpolators.html">Interpolators</a>.
</p>

<p>
<b>MFVec2f keyValue []</b>:<br/>
Contains arrays of coordinates for each value of the <b>key</b> list.
</p>
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#VRML V2.0 utf8

DEF TIMER TimeSensor {
    cycleInterval 2  # two seconds
    startTime 1 # timer starts at one sec after application launch, implicit stopTime set to 1+2 = 3 seconds after application launch

}
DEF INTERP PositionInterpolator2D {
    key [ 0, 0.5, 1 ]  # begin, middle and end of animation
    keyValue [ -50 -100, -100 100, 50 100 ] # three positions
}
DEF TRS Transform2D {
    children [
        Shape {
            appearance Appearance {
                material Material2D { emissiveColor 1 0.4 0 }
            }
            geometry Rectangle { size 50 50 }
        }
    ]
}
ROUTE TIMER.fraction_changed TO INTERP.set_fraction
ROUTE INTERP.value_changed TO TRS.translation
</textarea>
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<img src="images/nodes/CoordinateInterpolator2D_01.jpg" alt="CoordinateInterpolator2D example" />
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