
<section id='NMPlot_DisplayingGridDataPoints_id'
webfilename='displayinggriddatapoints'>
    <title>
        Displaying Grid Data Points
    </title>
    <para>
        NMPlot can display a grid's data points on a plot. The location
        of each data point is marked with a symbol, and optionally labeled
        with the point's value.
    </para>
    <exhibit>
        <img src='NMPlot_Figure_SampleDataPointsPlot.png'/>
    </exhibit>
    <para>
        To display the data points of a plot's <link
        target='#NMPlot_PrimaryGrid_id'>primary grid</link>, follow these
        steps.
    </para>
    <orderedlist>
        <listitem>
            <para>
                Go to the Grid Data Points page of the <link
                target='#NMPlot_PlotOptionsDialogBox_id'> Plot Options dialog
                box</link>.
            </para>
            <exhibit>
                <img src='NMPlot_ScreenCap_PlotOptions_GridDataPoints.png'/>
            </exhibit>
        </listitem>
        <listitem>
            <para>
                Check the box labeled <italic>Show Grid Data Points</italic>.
            </para>
        </listitem>
        <listitem>
            <para>
                You can choose to display only a portion of the data points in
                your grid: for example, every third point. This can make your
                plot less cluttered.
            </para>
            <para>
                Select which subset of the data points to display: every second
                data point, every third data point, etc. Select <italic>Show every
                data point</italic> to display all data points.
            </para>
            <exhibit>
                <img src='NMPlot_Figure_ShowEveryNthDataPoint.png'
                standard_colors='true'/>
            </exhibit>
        </listitem>
        <listitem>
            <para>
                NMPlot supports the concept of <termtext>nested subgrids</termtext>:
                i.e., sets of data points that double the resolution of a portion
                of a grid. Nested subgrids can, in turn, have their own subgrids.
            </para>
            <para>
                If your grid contains nested subgrids, you can choose to show
                only the data points in a portion of the subgrids. This is an
                alternative way to make your plot less cluttered.
            </para>
            <para>
                Type the maximum nesting level of the subgrids that you want to
                display. This can be any integer between zero and 999. A nesting
                level of zero means that no subgrids are displayed, while a nesting
                level of 999 means that all subgrids are displayed.
            </para>
            <exhibit>
                <img src='NMPlot_Figure_SubgridNestingLevel.png'
                standard_colors='true'/>
            </exhibit>
        </listitem>
        <listitem>
            <para>
                <italic>Symbol:</italic> Choose the symbol used to display data
                points on your plot. Press the Select Symbol button <img
                src='WCF_ThreeDotsButton_Figure.png'/> to display the Select Symbol
                dialog box, which allows you to browse the available symbols.
                See <iref target='WCF_SymbolControl_id'/>.
            </para>
        </listitem>
        <listitem>
            <para>
                <italic>Color:</italic> Select the color used to display data
                points. See <iref target='WCF_ColorControl_id'/>.
            </para>
        </listitem>
        <listitem>
            <para>
                <italic>Label Data Points:</italic> Check this box to label each
                data point with its value.
            </para>
            <unorderedlist>
                <listitem>
                    <para>
                        <italic>Font:</italic> Select the font used to label data points.
                        Press the Select Font button <img
                        src='WCF_ThreeDotsButton_Figure.png'/> to display the Font dialog
                        box, which allows you to browse the available fonts. See <iref
                        target='WCF_FontControl_id'/>.
                    </para>
                </listitem>
            </unorderedlist>
        </listitem>
    </orderedlist>
</section>
