Property Search


Throughout the software it is important that the user is able to find the properties they are interested in. This page discusses property search, both for single properties and lists of properties. 

Version: 1.7.2+  (Aug 2017)

Usage:  Across the system, whenever searching for properties

How to use in practice

Within all IGI software we use a common search process to find the properties desired for the action the user is taking. This search can take two forms, either we are looking for a single property (for example to link to in import, or for an axis on a scatter plot) or a set of properties (for example to put on a page, or a line graph). We have two related 'user controls' that enable the user to undertake both these actions. The two mechanisms essentially use the same property search logic but present the results in slightly different ways.

Single property search

When searching for a single property the 'user control' above is used. This can be used in two modes:


1. If you know in which analysis group your property will be found, first select the analysis in the Analyses box. Typing here will filter the results, and only one analysis group can be selected. Once the analysis is selected when you open, or type to search, in the Properties box you will only see those properties in the system that are part of the selected analysis group.

2. If you simply want to look for a property (and potentially are unsure of the analysis groups in which it might be contained) then you can start typing directly into the Properties box. This will bring up a list of properties that match your search string in the IGI property model.

Note from version 2.2 of p:IGI+ the property short name is shown, with the long name (which was previously shown in brackets) being shown on hover.

In the property selector the search string you type acts to filter the results, as shown. Once you select a property you can also set the indicator, units and ratio format to use for the property selected.


Note that only those properties that have indicators (gas and molecular data) or ratios (properties that are defined by equations of the form x/y) will have those options enabled. Only properties that are numeric will have the units available for selection. Initially default values will be chosen for the indicator, unit and ratio

To clear the contents of the Analysis or Property search box use the Esc key. Pressing Esc in the Analysis box will clear both the Analysis and Property boxes, while pressing Esc in the Property box will only clear the Property box.

List based property search


The list based property search works very similarly to the single property search, however in this case a list of all possible property matches is returned into a view from which you can select one or more properties depending on the context. So for example when creating a new page, or line graph, the user is likely to want to select several properties at once. The example shows searching within the Pyrol2 analysis group - it is likely the user will want to select several of these properties to show on a page, graph, etc.

The properties are shown in a ranked order, based on their 'relevance' to the typed string, as explained below. They are then also ranked by order of the analysis groups (so for example, .Any properties always come near the top of the list) and then their property order within that analysis group. 
In version 2.1+ the presentation of the properties has been made consistent across all tools, and shows the Short Name for clarity. The Long Name can still be seen on hover.

Advanced search options

From version 1.27 onward the search offers Advanced property filtering options: 


These allow the user to restrict their attention to, for example only Molecular properties, which have equations, and have data in the current project. This filtering is very powerful, and works with the analysis selection and property search options, so can be used to quickly find the property wanted.

Within each option group the expressions are taken as the union (for example if you select both Gas and Molecular from the Property type option group, this will show both Gas and Molecular properties). Between option groups (and the analysis and property searches) the expressions are taken as the intersection, so for example selecting Molecular and Equation will show only those Molecular properties that also have an equation associated with them.

Being able to search only for properties which have data in the project can be very helpful when creating graphs and palettes in particular.

How the search works

Searching for properties is key across the software. The search mechanism we provide attempts to provide a fast but comprehensive list of possible properties that are sought. The property search considers:

  1. The property short name
  2. The property long name
  3. Property aliases
  4. String search based on matching sub-strings - basically string overlap with all of the above.

It might be a little confusing at times that when you type a string a property with a very different name can appear, but this is likely to be because the string you have typed is an alias for that property. You can explore property naming aliases in the Geochemistry Help

There are some handy features of the property search that can help you find properties more efficiently:

We are continually updating and improving the aliases and naming in the property model to help users to more easily find and identify the properties in the model. The same search algorithm is used to auto-link properties on import.



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