MATLAB Code Implementation for Drawing 2D Coordinate Axes

Creating 2D coordinate axes in MATLAB is a fundamental operation for data visualization, achievable through simple code to establish x-y coordinate systems with customizable tick marks.

The drawing principle primarily involves three steps: first creating the basic axis framework, then adjusting properties to set axis ranges, and finally adding tick marks and labels. By default, MATLAB's plotting functions automatically generate axes, but manual configuration allows more flexible control over display effects.

Key implementation aspects include: using the gca function to obtain the current axes object, defining axis ranges through xlim and ylim functions. Tick mark configuration relies on xticks and yticks functions to specify tick positions, while xticklabels and yticklabels enable custom tick labeling. For adjusting axis intersection points, modify AxisLocation-related properties.

Advanced techniques include controlling border display with box on/off commands and toggling grid lines with grid on/off. For logarithmic axes, semilogx/semilogy/loglog functions quickly implement nonlinear scaling. Notably, the hold on command preserves current axes for overlaying additional plots, a common method for multi-layer visualizations.

This axis drawing approach suits scientific charts and function curve displays, where precise tick control enhances data presentation professionalism. Code implementation typically involves initializing axes with axis equal for proportional scaling, setting font properties via FontSize and FontWeight parameters, and using linspace to generate evenly distributed tick positions when custom intervals are required.