====Calculation Example: Area, Volume & Weight====

In this example, we will take the details of the product we're producing and calculate the area, volume and weight of the product.

===Available Information===

^Asset^Property^Desc^
|Paint Line|Thickness|The thickness of the product we're making (m)|
|Paint Line|Width|The width of the product we're making (m)|

^Known Values^Amount^Desc^
|Density|300|The weight of 1 cubic meter of product (kg)|

===Initial Layout===

{{calc_start.png}}

To begin with, we have one [[calc_output|Calculation Output]] node, and one [[ardi_point|ARDI Point]] node.

===Step 1: Calculate Area===

Before we can calculate the **weight** of our product, we need to know the **area** of our product.

Luckily, we're producing a rectangular slab, so it's as simple as //width// times //height//.

==Get the Width==

  * Click on the existing **Input** node, where it says //none//. \\
  * From the pop-up list, choose the //width// of your product.

{{calc_example_width.png}}

==Get the Thickness==

   * Copy your **Input** node by right-clicking it and choosing //Clone// from the menu.
   * Click on the new node and choose the //thickness// of the product from the list.

{{calc_example_thick.png}}

==Multiply the Numbers==

   * Right-click an empty area and choose **Add Node**, **Math** and **Mult** to add a new [[math_mult|Multiplication]] node.
   * Drag the output of your //width// and drag it to the first input of your new Multiplication node.
   * Drag the output of your //thickness// and drag it to the second input of your new Multiplication node.
   * Drag the output of your //multiplication// node and drag it to the input of your //value// node.

{{calc_example_area.png}}

===Step 2: Calculate Weight===

To convert from a cross-sectional area to a weight, we need to know the //density// of the product - which in this case is 300kg for every 1 cubic metre.

The [[module_calculation|calculation module]] can have multiple outputs, so we can easily clone our existing output so that our calculation delivers both the area and the weight.

==Create a Second Output==

  * Right-click on the //value// node, choose **Title** and change its name to **Area**.
  * Right-click on the same node again, and choose //Clone//.
  * Right-click on the new node, choose **Title** and change its name to **Weight**.

{{calc_example_double.png}}

==Multiply the Area by the Density==

  * Right-click empty space, choose **Add Node**, **Basic** and **[[basic_const|Number Const]]**.
  * Click the value on the new node and type '300'.
  * Right-click on the //Mult// node and choose //Clone//.
  * Drag the output of the //Number Const// into the new Mult node.
  * Drag the output of the **original** mult node into the **new** mult node.
  * Drag the output of the new Mult node into the input of the Weight node.

{{calc_example_finished.png}}

===Step 3: Weight Rate===

If needed, we could take this even further - multiplying the //production speed// by the new //weight per meter// would let us show how many tonnes per hour we're producing. 

{{calc_example_more.png}}

===The Results===

In the end, we have a chart and an API function that gives us quick access to the calculated values. 

{{calc_example_display.png}}