2-Finger-Drag [GestureML Wiki]

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====== 2-Finger-Drag ======
(Touch -> Spatial -> Drag/Move -> Two Point Drag Gesture “2-Finger-Drag”)

<code:csharp linenums:1>
<Gesture id="2-finger-drag" type="drag">
    <match>
        <action>
            <initial>
                <cluster point_number="2"/>
            </initial>
        </action>
    </match>       
    <analysis>
        <algorithm>
            <library module="translate"/>
            <returns>
                <property id="drag_dx" result="dx"/>
                <property id="drag_dy" result="dy"/>
            </returns>
        </algorithm>
    </analysis>    
    <mapping>
        <update dispatch_type="continuous">
            <gesture_event type="drag">
                <property ref="drag_dx" target="x"/>
                <property ref="drag_dy" target="y"/>
            </gesture_event>
        </update>
    </mapping>
</Gesture>
</code>

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