NIVEL 1: 13) Trabajo fin de Grado .1 Datos Básicos del Nivel 1

The Timeslider tool is available in the Historical Alarms view and the Historical Performance view, and can be enabled by selecting Show Timeslider on the View dropdown.

The Timeslider is a tool that makes is it easier to navigate the contents of a view with large amounts of data in a table (or a graph). Whenever the Timeslider tool is enabled, it is possible to navigate the Slider to filter the content in the main view.

The contents of the table in the main view changes dynamically while the Slider is navigated in the Timeslider bar (assumed there are any changes in the result set). When navigation has been done with the Slider, the content of the table in the main view is updated, so that only entries satisfying the navigation are shown in the table.

Due to the possibility of vast amount of data in the database, the Timeslider tool will not be fully populated. The initial setup will show the Slider on top of the data bars for the newest data available. The data amount shown is one read size. When navigating the Slider, the Timeslider bar graph will be dynamically populated with data corresponding to the read size.

This example shows 1000 alarms displayed in the Historical Alarms table, distributed from 22. januar 2010 07:23:59 to 23. januar 2010 13:59:44.

Each column in Timeslider bar graph represents the amount of alarms within an hour. This example shows that cursor has currently selected the interval 20:00- 21:00, with 31 alarms.

3.4.1.2 The objects in a view with Timeslider tool

Slider Information field

The exact start and stop position of the Slider is given in the Slider Information text field above the Timeslider bar.

Read size

The Slider Information field also shows the current read size. The read size for the

Historical Performance view is 24h. The default read size for the Historical Alarms view is 1000 alarms, and can be modified in the Historical Alarms preference menu.

Selected Data information field

The amount of data in the interval currently selected by the cursor in the

Timeslider bar, is given in the text field to the right of the Slider Information field. Whenever moving the cursor to another interval in the Timeslider bar, the amount of data in this interval will be displayed. When cursor is moved away from a an interval in the Timeslider bar area, the Selected Data information field becomes empty.

Timeslider bar

The Timeslider bar provides a visualization of the amount of data that is available and currently presented in the table. The bar can be clicked and used for

navigation of data in the table.

The area contains a column graph with time interval along the x-axis, and amount of data in the NetMaster database along the y-axis. The y-axis uses an exponential scale, so that both small and big values can be presented in the same graph.

3.4.1.3 Slider

The green frame in the Timeslider bar indicates the Slider area, which corresponds to the data currently in the table in the main view.

can be done by clicking with the mouse in the Slider. The different operations is indicated by the cursor:

 Click in the middle of the Slider and drag the Slider to a new position where you want to analyze the available data. The Slider read size settles the amount of data that is read from the start position of the slider.

 Click on the left border of the Slider and drag further to the left, to increase the area by the amount of one read size. The exact position of the left border will be determined by the oldest data in the read.

 Click on the right border of the Slider and drag further to the right, to increase the area by the amount of one read size. The exact position of the right border will be determined by the oldest data in the read.

For more details about how to use the Slider, see the examples at the end of this chapter.

3.4.1.4 Timeslider toolbar and available operations

In the upper left corner of the Timeslider tool, there is a toolbar with a set of operations to the Timeslider tool. This operations may be used to navigate more accurately based on the timeline and read size.

 - Reset the Timeslider to the basic zoom. This is calculated from the oldest alarm in the database up to present.

 - Zoom in on the Timeslider bar  - Zoom out on the Timeslider bar

 - Group bar in chart by minutes. Default is grouped by hours.

3.4.1.5 View toolbar and view dropdown and available operations

 In the views supporting the Timeslider tool, there are several operations on the View toolbar and View dropdown that will operate the Timeslider tool.

 Extend previous read. This button extends the Slider to the left and adds a full read to the existing data already listed. If the read size was 10, then the table would contain 20 entries after the operation. Each consecutive action will add an extra data to the data table based on read size. Start position will be calculated based on oldest data read. The stop position is kept as before.  Get previous read. This button moves the Slider one read size to the left.

The accurate start position is calculated based on the oldest data in the new data read from the database. The stop position is the previous start position.  Get next read. This button moves the Slider one read size to the right. The

accurate stop position is calculated based on the newest data in the new data read from the database. The start position is the previous stop position.  Extend next read. This button extends the Slider to the right and adds a

full read to the existing data already listed. If the read size was 10, then the table would contain 20 entries after the operation. Each consecutive action will add an extra data to the data table based on read size. Stop position will be calculated based on newest data read. The start position is kept as before.

 Go to selected time and date. This button opens the Date and Time dialog. The entry will be the new starting point for the Slider. Data will be read from this starting point up to read size. The new right border will be calculated based on the newest data in the read.

 Refresh the view. The Confirm Refresh dialog appear.  - Show/hide the Timeslider tool.

 Show/hide the Timeslider scrollbar at the bottom of

the Timeslider tool. Whenever the Timeslider is zoomed, the scrollbar can be used for navigating Timeslider bar along the time axis.

Examples of Slider operations

 Double arrow cursor is active when you move over the Slider

edge. Click and drag will move the edge of the slider. A pop-up will indicate the date/time alignment of the edge.

 Double arrow cursor is active when you move over the Slider edge. Click and drag will move the edge of the Slider. A pop-up will indicate the date/time alignment of the edge.

 Cross cursor indicates that you are inside the Slider. Single click will re-read data within the Slider. Click and drag will move the Slider.

 Move slider right. The

pop-up indicates the date and time alignment of the left edge of the slider.

 Move slider left. The pop-up

indicates the date and time alignment of the right edge of the Slider.

3.4.1.6 Confirm Refresh dialog

This dialog appears whenever selecting Refresh on the View toolbar.

If you press Yes, the Timeslider will be reset to its default position and size. When the Timeslider is first opened, is refreshed, or is extended in any way, the following message appears in the Timeslider bar:

3.4.1.7 Date and Time dialog

This dialog appears whenever selecting Go to selected time and date on the View

toolbar.

Pick a date and time and press OK to select a new starting point for the Slider.