The Graph view is the main work area of the Curve Tool window. It displays the curves for all selected axes and allows editing the curves in a graphical format. This section of the Curve Tool window has many sub-elements; each is described below:
Background Color
Gray. Points cannot have negative times. Therefore, the region of the screen for negative time is shown with a light-gray background. Even if an axis is geared to a master axis that has negative position units, the negative region in the curve tool is not used. There are two reasons for this. First, when a curve is based on a master axis, that curve always starts at zero master units. However, zero master units is defined as the position the master is at when the curve is first followed. Second, if the master axis does move backward and therefore would go negative, then the axis following the curve will hold at the first position in the curve until the axis goes forward, unless Auto Repeat is enabled. See Auto Repeat Curves for details.
Yellow. Positions beyond the extend and retract limits of the active axis are shown with a yellow background. See Curve Limits for details on these limits.
White. The remaining region is shown with a white background. Therefore, all points in this region have positions within the extend and retract limits of the active axis, and have times greater than or equal to zero.
Lines
Hairline. If the Detail window is turned on, then you will see a black hairline at the time (or master position) currently reflected in the Detail window. This hairline can be dragged with the pointer. See Detail Window for more information.
Points. Each point on all visible axes is shown with a small dot. For the active axis, the dots are red. For inactive axes, they are black.
Position/Time Plot. Each visible axis will have a curve drawn between the points. The active curve will be red; all other curves will be black.
Velocity Plot. The active curve can have its velocity plotted. See Showing Velocity and Acceleration for details. The color of this curve defaults to magenta, but can be changed by the user.
Acceleration Plot. The active curve can have its acceleration plotted. See Showing Velocity and Acceleration for details. The color of this curve defaults to cyan (light blue), but can be changed by the user.
Scale Bars. Time (or master position), position, velocity, and acceleration can each have a scale bar. The scale bars have minor and major tick marks. The value at each major tick mark is displayed next to it. Each major tick mark can also be dragged to independently adjust each scale. Scale bars can be turned off. See Using the Scale Bars for details.
Zero Line. When either velocity or acceleration is plotted and the scale bars are displayed, then a line is displayed representing zero velocity and/or acceleration. This line defaults to gray, but the color can be changed by the user. See Using the Scale Bars and Showing Velocity and Acceleration for details.
Velocity Limits. When velocity is plotted, then the positive and negative velocity limits of the active axis are shown by a dotted line the same color as the velocity plot, which defaults to magenta. See Curve Limits and Showing Velocity and Acceleration for details.
Acceleration Limits. When acceleration is plotted, then the positive and negative acceleration limits of the active axis are shown by a dotted line the same color as the acceleration plot, which defaults to cyan (light blue). See Curve Limits and Showing Velocity and Acceleration for details.
Grid. A grid can be displayed on the Graph view. This can be in the form of dotted lines, dots, or crosses. See Using the Grid for details.
Selection Box. When a range of points is selected using the pointer and a selection box as described in Selecting Points, then a dotted box with resize handles will be displayed around the selected points. This selection can then be used for Moving Points and Expanding and Contracting Points.
See Also: Graph View Topics and Curve Tool Topics
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