Graphs overview

Using the product you can display crude data in a graphical format. The different graph types available allow you to quickly compare crudes and their properties.

Several different types of graph can be displayed:

• Profile graph toolbar

• Residue profile graph

• Scatter graph

• Property bar graph

• Viscosity graph

• Distillation graph

To display a graph:

1. Click the lower half of the Graphs button in the Graphing group of the Home ribbon tab. The list of graphs appears.

2. Choose the graph you want to display.

You can display several types of graph and the same time. Each graph appears in its own window, which you can dock and undock using the standard controls for windows. See Docking windows in the assay workspace.

To minimize and restore any active graphs, click the upper half of the Graphs button in the Graphing group of the Home ribbon tab. This is useful if you need more space to work with a document or with the Database view.

Note

The profile for assay currently present in a document is only displayed if the on the tab of the document is selected. To add or remove the profile for an assay click the icon of the document.

Graph axis controls

The graph axis settings for each profile graph are fully configurable. To view the settings for a graph axis, click on the associated graph axis button to open the Graph Axis Details dialog. The graph axis settings displayed in the dialog include:

• Minimum and Maximum: The minimum and maximum values determine the magnitude of the domain (x-axis) or the range (y-axis).

• Major and Minor: The Graph is subdivided into major (dark grey) and minor (light grey) intervals. The values for the major and minor divisions determine the scale of the graph's major and minor intervals respectively.

• Log axis: The log axis check box determines whether log scales are used for the selected axis when displaying the graph.

• Reverse scale: The reverse scale check box determines whether scaling of the selected axis is reversed or not. If reverse scales are selected, larger values will be shown to the left and smaller values to the right (for the X axis) or larger values will be shown to the bottom and smaller values to the top (for the Y axes).

• Stack graph: for graphs showing more than one property (such as paraffins, naphthenes and aromatics) shades the different profiles and stacks them together for easy visualisation.

The Reset button of the Graph Axis Control dialog resets the graph axis to its default setting removing all custom changes.

The graph axis settings are configured automatically for each axis by default. To determine your own settings, tick or click the relevant check boxes and, if necessary, enter your own values into the adjacent text boxes accordingly. Click Apply to apply your new settings and close the dialog or Close to close the dialog without making any changes.

Pan the graph

In pan mode you can click and drag the mouse cursor over the graph to view different portions of it. This is especially useful when you have increased the zoom level, so that only part of the graph is visible.

When pan mode is active, the mouse cursor turns to a hand when over the graph.

To select pan mode do either of the following:

• Right-click on the graph and select Pan mode from the context menu.

• Click the Pan Mode button on the toolbar at the top of the graph.

Zoom the graph