Noel Tock

<h4>Introduction</h4>
Hammy takes your regular content images (only within posts and pages, not custom post types) and regenerates a number of smaller sized images. When a person visits your website, it then automatically provides them with the most appropriate image (or the smallest one possible). This makes for a better experience, especially on mobile. This uses the new WP 3.5 image code.
<h4>Will it work on my Theme?</h4>
Yes! (the only exception being themes with no standard posts or pages)
<h4>How does it work?</h4>
When activated, the <code><img></code> tag is replaced by the <code><figure></code> tag, and the alternate image sizes are provided in a way that only jQuery can access/load. If jQuery isn’t available, it falls back to the regular image you had there in the first place.
It also takes on any classes or alternate titles from the original image. It does not make any changes to your database (i.e. content or images that you already have remain untouched).
<h4>What else do I need to know?</h4>
<ul>
<li>Supports Retina</li>
<li>Uses WordPress 3.5 Image Code (no external dependency)</li>
<li>You need to be willing to spend a few minutes configuring and playing with the breakpoints and choosing the correct parent container to get it right.</li>
<li>Hammy filters the output every single time, but only needs to generate a resized image once.</li>
</ul>
<h4>Updates</h4>
Follow me for updates at <a href="http://www.twitter.com/noeltock" rel="nofollow ugc">@noeltock</a>
<h4>GitHub</h4>
If you have technical issues or other enhancements that you’d like to contribute, please do so in the form of a pull request or issue here:
<a href="https://wordpress.org/plugins/hammy/" rel="ugc">https://wordpress.org/plugins/hammy/</a>
<h3>Feedback & Bugs</h3>
Kindly post any issues, questions or suggestions on the <a href="https://wordpress.org/support/plugin/hammy" rel="ugc">Hammy forums</a> .

Hammy

Hammy speeds up your website by generating and serving resized images for your content area depending on content width.

codepeople

The plugin implements the “Area and Perimeter” operations module to be used from the equations of the <a href="https://wordpress.org/plugins/calculated-fields-form/" rel="ugc">“Calculated Fields Form”</a> plugin. The “Calculated Fields Form” plugin is a form builder with a lot of potential, and its “Calculated” control is one of its great strengths. It allows you to enter mathematical formulas, determine the distance between addresses, plot graphs, process dates, manage files, and many other operations.
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The “CFF Area and Perimeter Operations” plugin enhances, even more, the possibilities of the <a href="https://wordpress.org/plugins/calculated-fields-form/" rel="ugc">“Calculated Fields Form”</a> plugin, including operations to calculate the area and perimeter of figures like squares, triangles, rhombus, circles, ellipse, and even more important, regular and irregular polygons. The Area and Perimeter operations included by the plugin are listed below:
NVERTICESAREA: Calculates the area of a 2D figure given its vertices. The vertices are pairs of x,y coordinates. The operation returns null if the parameters are invalid or insufficient.
Ex: NVERTICESAREA([4,10],[9,7],[11,2],[2,2]) Result: 45.5
NVERTICESPERIMETER: Calculates the perimeter of a 2D figure given its vertices. The vertices are pairs of x,y coordinates. The operation returns null if the parameters are invalid or insufficient.
Ex: NVERTICESPERIMETER([4,10],[9,7],[11,2],[2,2]) Result: 28.46
NSIDESAREA: Calculates the area of a 2D figure given its sides. The sides are numbers only. The operation returns null if the parameters are invalid or insufficient, or it is not a polygon. For irregular polygons the operations returns the maximum area.
Ex: NSIDESAREA(9,8,9,20) Result: 93.91
NSIDESPERIMETER: Calculates the perimeter of a 2D figure given its sides. The sides are numbers only. The operation returns null if the parameters are invalid or insufficient, or it is not a polygon.
Ex: NSIDESPERIMETER(9,8,9,20) Result: 46
SQUAREAREA: Calculates the area of a square. Accepts the side of the square as a parameter. The operation returns null if the parameter is not a number.
Ex: SQUAREAREA(9) Result: 81
SQUAREPERIMETER: Calculates the perimeter of a square. Accepts the side of the square as a parameter. The operation returns null if the parameter is not a number.
Ex: SQUAREPERIMETER(9) Result: 36
TRIANGLEAREA: Calculates the area of the triangle given its base and height. The operation returns null if the parameters are not numbers.
Ex: TRIANGLEAREA(4,5) Result: 10
TRIANGLEPERIMETER: Calculates the perimeter of the triangle given two or three sides. If you pass only two sides as parameters, the plugin assumes it is a right triangle and calculates its hypotenuse. The operation returns null if the parameters are not numbers.
Ex: TRIANGLEAREA(3,4) Result: 12 
Ex: TRIANGLEAREA(3,4,5) Result: 12
RHOMBUSAREA: Calculates the area of a rombo given its diagonals. The operation returns null if the parameters are not numbers.
Ex: RHOMBUSAREA(3,4) Result: 6
RHOMBUSPERIMETER: Calculates the perimeter of a rombo area given its side or diagonals. If you pass two parameters to the RHOMBUSPERIMETER operation, it assumes they are the rombo diagonals. The operation returns null if the parameters are not numbers.
Ex: RHOMBUSPERIMETER(6,8) Result: 20 
Ex: RHOMBUSPERIMETER(5) Result: 20
ELLIPSEAREA: Calculates the area of an ellipse given two semi-axis. The operation returns null if the parameters are not numbers.
Ex: ELLIPSEAREA(7,5) Result: 109.96
ELLIPSEPERIMETER: Calculates the perimeter of an ellipse given two semi-axis. The operation returns null if the parameters are not numbers.
Ex: ELLIPSEPERIMETER(2,3) Result: 16.02
CIRCLEAREA: Calculates the area of a circle given its radius. The operation returns null if the parameter is not a number.
Ex: CIRCLEAREA(3) Result: 28.27
CIRCLEPERIMETER: Calculates the perimeter of a circle given its radius. The operation returns null if the parameter is not a number.
Ex: CIRCLEPERIMETER(3) Result: 18.85
<h3>Use</h3>
The “CFF Area and Perimeter Operations” plugin includes the new “Area and Perimeter” entry (see screenshots) in the operations list of the calculated fields (Insert a calculated field in the form and scroll down the operations list in your configuration). Once the “Area and Perimeter” option is selected, the plugin enables the operations set and documentation. By clicking on the operation buttons, they are added to the equation’s editor.

CFF Area and Perimeter Operations


The most impressive feature of the "CFF Area and Perimeter Operations" plugin (for Calculated Fields Form) is the possibility of calculating areas of irregular polygons.


Best area calculator

Implements operations for calculating the figure areas and perimeters to use with the Calculated Fields Forms equations.

Hammy vs CFF Area and Perimeter Operations