plotSetGridPen¶

Purpose¶

Controls the thickness, color, and style for the grid lines.

Format¶

plotSetGridPen(&myPlot, which_grid, thickness[, clr[, style]])¶

Parameters:

&myPlot (struct pointer) – A plotControl structure pointer.
which_grid (string) – The grid to modify, "major", "minor", or "both".
thickness (Scalar) – the thickness of the specified grid lines in pixels.
clr (string) – Optional argument, name or rgb value of the new color for the specified grid lines.
style (Scalar) –
the style of the pen. Options include:

1 solid Solid line.

2 dash Dash line.

3 dot Dot line.

4 dashdot Dash-Dot line.

5 dashdotdot Dash-Dot-Dot line.

Examples¶

// Declare plotControl structure
struct plotControl myPlot;

// Initialize plotControl structure
myPlot = plotGetDefaults("xy");

// Set the major grid lines to be 0.5 pixel wide, black, and dashed
plotSetGridPen(&myPlot, "major", 0.5, "black", 2);

// Create data
x = seqa(0.1, 0.1, 50);
y = sin(x)~cos(x);

// Plot the data with the new line colors
plotXY(myPlot, x, y);

Remarks¶

The x-axis and y-axis grid line properties can be set separately with plotSetXGridPen() and plotSetYGridPen().

Note

This function sets an attribute in a plotControl structure. It does not affect an existing graph, or a new graph drawn using the default settings that are accessible from the Tools > Preferences > Graphics menu.