Allows you to edit data for an existing curve, surface, or group or enter data values for a new curve, surface, or group. The maximum number of points that may be edited using this command under Windows 95 or 98 is 32767. For newer versions of Windows there is no limit.
Click on the toolbar.
Accepts the input and closes the dialog box.
For XY plots you of course need at least 2 points to draw a line segment, though you can draw a symbol at a single point.
At least 3 non-collinear points (projected onto the XY plane) with at least 2 points having a variation in Z are required for a 3D surface plot. DPlot will remove points as needed to eliminate pairs of points with identical X,Y values, preserving the point with the maximum Z value.
3D scatter plots require at least 2 points with a variation in Z. Unlike surface plots, you can have multiple points with identical X,Y values.
1D plots require at least 2 amplitudes per group. Groups with less than 2 points are removed.
Restores previous values and closes the dialog box.
Adds a data point to the end of the array.
Inserts a data point before the point currently highlighted in the list box.
Deletes the data point currently highlighted in the list box.
(3D data on a rectangular grid). This feature allows you to replace all of a plot's existing Z values with clipboard data, which must be formatted as one value per text line. X and Y will not be modified. This feature might be handy if you frequently produce 3D surface or scatter plots that always have the same X and Y coordinates, but different Z values.
(Random 3D data). This feature allows you to replace all of a plot's existing X, Y, and Z values with clipboard data, which must be formatted as three values per text line. This feature might be handy if you frequently produce 3D surface or scatter plots with a complicated setup: embedded images, long notes, etc.
XY Plots Only
You can edit points and/or add a point by clicking on the plot with your mouse. To edit the currently selected point, click the left mouse button at the desired location. To add a new point, press the Ctrl key while clicking. If the Snap mouse box is checked, the coordinates of the point selected with the mouse will be rounded to “nicer” values: one tenth the tick mark interval on linear scales, for example. If you want to enter a new point that lies outside the extents of the graph, use the Zoom out button or one of the 4 pan buttons. The zoom and pan buttons may be disabled, dependent on the scaling type. For example, you cannot pan with a polar plot.
For 3D data on a rectangular grid, a Z value less than -1.E+37 will be ignored. In this way you can create a plot on a rectangular grid that does not have a rectangular boundary, and/or create holes in the surface.