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TransformControls: Add min/max constraints. #29602

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Oct 10, 2024
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TransformControls: Add min/max constraints. #29602

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1d817af
add min/max constraints to TransformControls
Makio64 Oct 9, 2024
e76c73d
update TransformControls documentation
Makio64 Oct 9, 2024
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30 changes: 30 additions & 0 deletions docs/examples/en/controls/TransformControls.html
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Original file line number Diff line number Diff line change
Expand Up @@ -132,6 +132,36 @@ <h3>[property:Number translationSnap]</h3>
steps the 3D object should be translated. Default is `null`.
</p>

<h3>[property:Number minX]</h3>
<p>
The minimum allowed X position during translation. Default is `-Infinity`.
</p>

<h3>[property:Number maxX]</h3>
<p>
The maximum allowed X position during translation. Default is `Infinity`.
</p>

<h3>[property:Number minY]</h3>
<p>
The minimum allowed Y position during translation. Default is `-Infinity`.
</p>

<h3>[property:Number maxY]</h3>
<p>
The maximum allowed Y position during translation. Default is `Infinity`.
</p>

<h3>[property:Number minZ]</h3>
<p>
The minimum allowed Z position during translation. Default is `-Infinity`.
</p>

<h3>[property:Number maxZ]</h3>
<p>
The maximum allowed Z position during translation. Default is `Infinity`.
</p>

<h2>Methods</h2>

<p>See the base [page:Controls] class for common methods.</p>
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10 changes: 10 additions & 0 deletions examples/jsm/controls/TransformControls.js
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Expand Up @@ -110,6 +110,12 @@ class TransformControls extends Controls {
defineProperty( 'showX', true );
defineProperty( 'showY', true );
defineProperty( 'showZ', true );
defineProperty( 'minX', - Infinity );
defineProperty( 'maxX', Infinity );
defineProperty( 'minY', - Infinity );
defineProperty( 'maxY', Infinity );
defineProperty( 'minZ', - Infinity );
defineProperty( 'maxZ', Infinity );

// Reusable utility variables

Expand Down Expand Up @@ -372,6 +378,10 @@ class TransformControls extends Controls {

}

object.position.x = Math.max( this.minX, Math.min( this.maxX, object.position.x ) );
object.position.y = Math.max( this.minY, Math.min( this.maxY, object.position.y ) );
object.position.z = Math.max( this.minZ, Math.min( this.maxZ, object.position.z ) );

} else if ( mode === 'scale' ) {

if ( axis.search( 'XYZ' ) !== - 1 ) {
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