Chart Configuration

In OCRIS, a paired sample chart is configured as a User Interface Object.

• Click the Add item toolbutton to create a new chart.
• Use the Copy and Paste toolbuttons to make a copy of an existing chart as a template for a new chart.
• Click Delete item to delete the selected chart configuration from the database.
• Click Properties to modify an existing configuration.

A QC chart object relies on two stored procedures to provide the data content required by the application. Each of these stored procedures has a predefined system name that is used internally by the application.

As part of the chart configuration, each system name must be mapped to an actual stored procedure in the database. Select a system name in the list on the left, select the corresponding item from the list of configured stored procedure objects in the pane on the right, and click the Map button.

To cancel a mapping, select the system name in the list on the left and click Undo.

Data content requirements vary from one UI object to the next. To ensure that customised stored procedures meet the minimum requirements, please refer to the implementation example provided in the OCRIS standard database.

The editor also has a Display Objects page on which all the graphic display objects used in the chart are listed.

This part of the interface can be used to change the properties of individual display objects, e.g. captions or scale bars. However, the procedure requires advanced knowledge and should only be attempted with the assistance of an experienced consultant. (Always make a copy of the original chart before experimenting with changes to the display objects.)

In the case of the paired samples chart (and more specifically the scatter plot), the value ranges on the X and Y axes of the graph may vary considerably between different versions of the chart. For example, gold values are usually displayed as parts per million on a logarithmic scale, while something like iron grade would typically be displayed as a percentage on a normal scale. Typically this would require more than one version of the paired samples chart to be configured.

While it is possible to change the configuration of the axes interactively at execution time, it is often more convenient to make the changes permanent by modifying the chart configuration directly.

The following steps should be followed when changing the scale bar configuration.

Find the Scaled Frame object named "Scatter Plot" in the list of display objects.

Click the Properties toolbutton to display the scaled frame editor and select the Scale Bars tab.

Select one of the scale bar items and click the Properties toolbutton.

Depending on requirements, select either "Logarithmic" or "Normal" from the Type of scale dropdown list. Change the scale bar properties to suit the most likely scenario.

Click Save; then repeat this process for the other scale bar.