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Twister: a space-warp operator for the two-handed editing of 3D shapes
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GI '05 Proceedings of Graphics Interface 2005
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symTone: two-handed manipulation of tone reproduction curves
GI '06 Proceedings of Graphics Interface 2006
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Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
AVI '08 Proceedings of the working conference on Advanced visual interfaces
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CHI '13 Extended Abstracts on Human Factors in Computing Systems
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AUIC '12 Proceedings of the Thirteenth Australasian User Interface Conference - Volume 126
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We introduce symSpline: a symmetric, dual-mouse technique for the manipulation of spline curves. In symSpline, two cursors control the positions of the ends of the tangent to an edit point. By moving the tangent with both mice, the tangent and the edit point can be translated while the curvature of the spline is adjusted simultaneously, according to the length and angle of the tangent. We compare the symSpline technique to two asymmetric dual-mouse spline manipulation techniques and to a standard single-mouse technique. In a spline matching experiment, symSpline outperformed the two asymmetric dual-mouse techniques and all three dual-mouse techniques proved to be faster than the single-mouse technique. Additionally, symSpline was the technique most preferred by test participants.