Plotting and reversing axis direction (2024)

FAQs

What is the direction of the axes in Matlab? ›

By default, Matlab has positive x-axis backwards, y-axis toward left side and z-axis toward upward direction (as in the attached picture).

Change the location of the axis lines so that they cross at the origin point (0,0) by setting the XAxisLocation and YAxisLocation properties of the Axes object. Set XAxisLocation to either 'top' , 'bottom' , or 'origin' . Set YAxisLocation to either 'left' , 'right' , or 'origin' .

Use the flipud function to flip arrays in the vertical direction (that is, about a horizontal axis). The flip function can flip arrays in any direction.

The x axis is the left-to-right direction, the y axis the foot-to-head direction and the z axis the back-to-front direction.

The X axis follows along the ground plane, perpendicular to the Y axis and positive toward the east (and therefore negative toward the west). The Y axis follows along the ground plane, and is positive toward true north (that is, the North Pole, not magnetic north) and negative toward true south.

You can change the x- or y-axis units by right-clicking the mouse on the axis label or by right-clicking on the plot and selecting Analysis Parameters.

Change Axes Properties

Use yyaxis left to activate the left side and set the direction for the left y-axis. Similarly, use yyaxis right to activate the right side.

B = flip( A , dim ) reverses the order of the elements in A along dimension dim . For example, if A is a matrix, then flip(A,1) reverses the elements in each column, and flip(A,2) reverses the elements in each row.

newStr = reverse( str ) reverses the order of the characters in str .

How do you reverse a function in Matlab? ›

g = finverse( f ) returns the inverse of function f , such that f(g(x)) = x .

The for-loop method is a simple and intuitive approach to reverse an array in Java. The idea is to iterate through half of the array and swap the corresponding elements from both ends. This process continues until the middle is reached, resulting in a reversed array.

Use the fliplr function to flip arrays in the horizontal direction (that is, about a vertical axis). The flip function can flip arrays in any direction.

The usual way of orienting the plane, with the positive x-axis pointing right and the positive y-axis pointing up (and the x-axis being the "first" and the y-axis the "second" axis), is considered the positive or standard orientation, also called the right-handed orientation.

We know that the direction cosine is the cosine of the angle subtended by the line with the three coordinate axes, such as x-axis, y-axis and z-axis respectively. If the angles subtended by these three axes are α, β, and γ, then the direction cosines are cos α, cos β, cos γ respectively.

axis style uses a predefined style to set the limits and scaling. For example, specify the style as equal to use equal data unit lengths along each axis. axis mode sets whether MATLAB^® automatically chooses the limits or not.

The horizontal axis is called the x-axis and the vertical one is the y-axis. These axes intersect with each other at the origin whose location is given as (0, 0).