Working with Properties

Working with printed circuit boards means dealing with a lot of information, e.g. in the form of component properties. In the following, two important information dialogs are introduced:

Component / Non-Component Properties

Fig 1. - Component Properties
Fig 2. - Non-Component Properties

The difference between components and non-components is that components are strictly defined by the ODB++ format while non-components is our term for the collective category of the remaining objects that are no components. To invoke both dialogs you have to select one or more objects in the visualisation first, then you can right click and select "Properties" to get to the dialog containing a large variaty of information like the part name, position, height, pin count (with an own pin overview tab), etc.

Attribute Histogram for Components / Non-Components

Fig 3. - Attribute Histogram Components
Fig 4. - Attribute Histogram Non-Components

The difference between components and non-components is hardly visible and only is due to the fact that with non-components you have additional tabs based on categories (lines, pads, arcs, surfaces, texts) to help you find the object you are looking for more easily. To invoke the Attribute Histogram dialog you have to right click on the concerning layer in the layer panel and select "Show Attribute Histogram" to get a list of all component attributes and their respective values.

If you have more than one layer activated for visualisation and you use the mouse gesture to get to the Attribute Histogram dialog, it will always show you the data for the most activated layer of your layer stack up.

Application Example

To increase comprehension when to best use these previously introduced dialogs, here is a case example: Let's assume you want to do a test or let someone do a test and thus need to select certain test points and export the list to e.g. MS Excel.

Step 1: Selection

There are two ways to select something:

Method 1:

  1. Search for a test point in your visualisation and select it
  2. Right-click on it and select "Properties"
  3. Double-click on the desired attribute e.g. geometry

Method 2:

  1. Right-click on the layer containing your test points and select "Show Attribute Histogram" to get a list of all properties and their respective values. This method requires knowing the property and value you are searching for, e.g. property geometry and there values marked with a tp underscore marking them as test points.
  2. Select one or more values and then right-click and chose "Select all"

 

Step 2: Getting the list
Fig 5. - Selection List

The next step is the same for both methods. Once you have selected the needed properties by using one of the methods above, you have to call the "Selection Buffer via "Start » List". It lists all the attributes of your selected components your test adapter supplier would need to do his work. The list shows the layer, object, type, position x/y, and the net you can test with the individual test point and can easily be copied by right-clicking and selecting "Copy data to Clipboard" and be pasted anywhere you like.