What are the potential pitfalls to avoid when working with coordinate systems and graphs in PHP?

One potential pitfall to avoid when working with coordinate systems and graphs in PHP is not properly scaling the axes. This can result in distorted or inaccurate representations of data. To avoid this issue, make sure to calculate appropriate scaling factors for the axes based on the range of data values.

// Calculate scaling factors for x and y axes based on data range
$x_min = min($data_points_x);
$x_max = max($data_points_x);
$y_min = min($data_points_y);
$y_max = max($data_points_y);

$x_scale = ($graph_width - $padding * 2) / ($x_max - $x_min);
$y_scale = ($graph_height - $padding * 2) / ($y_max - $y_min);