$( Rotation/MeasuredAngle ($Object, $Center, $AngleMeasure) ${ This function is present in GSP but missing in JSP. Rotates an object at an angle specified by a measurement. Angle orientation is in the mathematical sense (as in the Rotation construction and Angle measurement), not negative (as in the three Translation/...Angle/...Distance constructions). The MeasureInDegrees and DirectedAngles parameters affect the result. $} Translation ($Center, 10, 0) [hidden]; Translation/MarkedAngle/FixedDistance ($Center, $AngleMeasure, 10) [hidden]; Rotation/MarkedAngle ($Object, $Center, $1, $Center, $2); $) $( Rotation/MeasuredAngle/Negative ($Object, $Center, $AngleMeasure) ${ This function is present in GSP but missing in JSP. Rotates an object at an angle specified by a measurement. Angle orientation is in the negative mathematical sense (as in the three Translation/...Angle/...Distance constructions), not positive (as in the Rotation construction and Angle measurement). The MeasureInDegrees and DirectedAngles parameters affect the result. $} Translation ($Center, 10, 0) [hidden]; Translation/MarkedAngle/FixedDistance ($Center, $AngleMeasure, 10) [hidden]; Rotation/MarkedAngle ($Object, $Center, $2, $Center, $1); $) ${ Just testing. * Background = 239, 239, 239 * MeasureInDegrees = 1 * LabelSize = 8 $V Point (50, 60); $S1 UnitPoint ($V, 25); $c Circle ($V, $S1) [black]; Circle interior ($c) [color (223, 223, 223)]; $S2 Point on Object ($c, -1.0); { this has negative orientation too. } Segment ($V, $S1) [black]; Segment ($V, $S2) [black]; $alpha Angle ($S1, $V, $S2, 10, 15, 'alpha: ') [suffix (' degrees')]; $d Distance ($V, $S1, 10, 27, 'd: ') [suffix (' pixels')]; $C Point (50, 150) [label ('C')]; $P Point (85, 150) [label ('P')]; Rotation/MeasuredAngle ($P, $C, $alpha) [blue, label ('P rotated by alpha around C')]; $P1 Translation/MarkedAngle/MarkedDistance ($C, $alpha, $d) [blue, label ('C translated by (d, -alpha)')]; Circle ($C, $P1) [hidden]; Circle interior ($1) [color (215, 215, 239)]; Circle ($C, $P) [hidden]; Circle interior ($1) [color (223, 223, 239)]; $}