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  • Navigation Bar, Shifting Observation Ranges
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Using the navigation bar, one can control what the drawing area displays.

It offers the following capabilities:

  • At the left, the zoom factor can be configured.  A click to the "+" button increases it by a factor square root of 2, a click to the "-"-Button decreases it accordingly.  The input field in the middle, where one can enter it manually (the "%"-sign will be added automatically, and can thus be omitted on input) offers the following extra options:

    • Fit page adjusts the zoom factor such that the whole drawing area of the document will be visible
    • Scale to Width adjusts the zoom factor such that the whole width of the document will be visible
    • Scale to Height adjusts the zoom factor such that the whole height of the document will be visible
  • Right of the zoom factor monitoring elements one can define the currently displayed page, and the currently active layer.  Some user actions like creating new shapes implicitely refer to the current layer, other user actions (like opening the context menu) offer a fast direct access for shapes of the active layer, whereas shapes of other layers are only accessible using more steps.
  • The monitoring elements at the right offer fast adjustments of observation ranges.  In the dropdown, one of the observation ranges can be selected, the widgets at the right will refer to it.

    Please note, that always all observation ranges of the document take effect, although just one will be displayed in the navigation bar at a time.

    For example, in the upper example, actually a second observation range named "Whole Time Range" exists. Its aim is to display all data ever recorded in some of the graphs, whereas other graphs just show data for some limited time range.  Which of these two observation ranges is selected in the dropdown doesn´t influence the look of those graphs in any way.
  • The minimum and maximum boundary of an observation range is managed using the two input fields with the lock in the middle:

    The closed lock indicates, that if one end of the time range is changed, the other end is adjusted automatically such that the length of the time range is preserved.  A click to the lower triangle of the left spinner (the one where "2014" is selected) thus leads to the following result:

    This way, having a look on the same graph, but for different time ranges is very easy.  For example, one might first inspect the year 2014, then the year 2013, then 2012, and so on.  Conversely, if the lock is open

    the same click leads to the following result:

    Each time range has a date format as property (one can manage it via Document ---> Observation Ranges).  For the screenshots above, it was configured to the value "Day/Month/Year".  Internally, TisGraph adds a suffix "00:00:00" to the timestamp.  Thus, for displaying data of a whole year, one should use the 1st January of the next year as "to date".

    If one would choose the 31st December as "to date", then exactly for the 31st December, no data would be displayed in the graph.
  • Analoguous to time ranges, value ranges can be managed either:

    The lock here works exactly the same way as shown above for a time range.
  • The button sets the end of the time interval to the current date. E.g., if we start with the same situation as in the example above

     and today is the 22nd October 2014, the result will be
  • The two buttons  set the length of the time range to seven / fourtheen days, and keep the end of the time range unchanged.  The aim of this feature is to offer quick access to reports about one or two weeks.  A click to the seven-days-button, starting at the previous screenshot, leads to the following result:

    In this case, the lock doesn´t have any effect.
  • The two buttons at the right  move the time range by exactly its length into the past or into the future. Similarily to the closed lock, this aims for quick switches between neighbor time ranges, just this feature also supports switching between "odd" time ranges.  A click to the left button for example switches to the previous week:


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