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3.25.47 object

The object command defines a single object which will appear in all subsequent 2D plots. You may define as many objects as you like. Currently the supported object types are rectangle, ‘circle‘, ‘ellipse‘, and polygon. Rectangles inherit a default set of style properties (fill, color, border) from those set by the command rectangle, but each object can also be given individual style properties. Circles, ellipses, and polygons inherit the fill style from ‘set style fill‘.


    set object <index>
        <object-type> <object-properties>
        {front|back|behind} {clip|noclip}
        {fc|fillcolor <colorspec>} {fs <fillstyle>}
        {default} {lw|linewidth <width>}

<object-type> is either rectangle, ‘ellipse‘, ‘circle‘, or polygon. Each object type has its own set of characteristic properties.

Setting ‘front‘ will draw the object in front of all plot elements, but behind any labels that are also marked ‘front‘. Setting ‘back‘ will place the object behind all plot curves and labels. Setting ‘behind‘ will place the object behind everything including the axes and ‘back‘ rectangles, thus

    set object rectangle from screen 0,0 to screen 1,1 behind

can be used to provide a colored background for the entire graph or page.

By default, objects are clipped to the graph boundary unless one or more vertices are given in screen coordinates. Setting ‘noclip‘ will disable clipping to the graph boundary, but will still clip against the screen size.

The fill color of the object is taken from the <colorspec>. ‘fillcolor‘ may be abbreviated ‘fc‘. The fill style is taken from <fillstyle>. See colorspec and ‘fillstyle‘. If the keyword ‘default‘ is given, these properties are inherited from the default settings at the time a plot is drawn. See rectangle.

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