Data / View Plots

Introduction

Point data can be displayed in a graph. Clicking on the Data / View Plots menu displays the View Plots page.

This page is used to query the database for data from a predefined plot group or from selected plot points. The data returned from the database query will be plotted in a trend chart. Click the Display button to retrieve the data specified in the input fields organized under the Select Plot, Select Display Time and Interval, Display Options, Plot Options headings. The web browser will remember the plot data request parameters and restore them the next time the page is selected.

View Plots (see full-size image)

Select Plot Input

Select the plot and (potentially) points to query.

The Point List displays the plot point and plot parameters defined for this plot data request. Plot point parameters define the point data analysis and plot options. Plot options include the plot scale (left or right), plot scale invert, plot scale range type and limits, plot type (line, area, bar, step, etc.), line color, line type, line thickness, point point shape, shape color, shape filled. Multiple plot levels can be defined to change the plot line color at different limits.

The first image below illustrates when the point Override is set to true. The second illustrates the point Override set to false.

Plot Input, Point Override Set to True (see full-size image)

Plot Input, Point Override Set to False (see full-size image)

Data Label	Description
Plot	Select the plot to display
Point list	Depending on the points' Override parameter when the plot was defined, the point list is either a fixed point or point list and is provided as information (false) or point(s) may be selected to display from the pick list (true). If editable, the Add button and are present.

Select Points Popup

If selecting points is enabled, parameters, organized by tabs, are available to further specify how data should be represented.

Point Popup (see full-size image)

Data Label	Description
General
Panel	Select the report panel for this point.
Point	Select the point from the pick list.
Label	Enter the report legend for this point. If blank the point pick list label is used.
Analysis
Statistic	Select the data analysis for the point readout. See the data analysis appendix for a description of the analysis types. Analysis type, if selected, will override the report data request analysis.
Data type	Select the type of data displayed: Scaled: Scaled or analysis value Raw: Raw data value Score: Nova score value Rating1 - Rating5: Rating value 1 - 5 Date: Date of data report Time: Time of day of data report DateTime: Date and time of data report
Display Interval	Select the time interval for the data analysis. The time interval is used to compute the start time for the data analysis from the end time. Use Request Interval and Show Data Reports will use the report data request display interval if selected or 1 day by default.
Time Offset	Select the time offset from the report data request end time for the data analysis period, default if 0.0 seconds. A positive time offset starts in the future (After), a negative time offset starts in the past (Before). Click the Time Offset: button to select from a list of intervals. The time offset direction is selected from the After/Before list. Click the button again to use the time offset fields.
Multiplier	Multiply the data analysis computed value by this constant.
Adder	Add this constant to the data analysis computed value.
Display
Data class	Select a class from the report style sheet to define the report data display style. The default style is reportdata.
Indicate novascore	Select true to change the data class displayed for the data analysis score value. The score value (1-5, 0 for missing) is appended to the data class name. For example if the data class name is reportdata then a score of 1 will use the class reportdata1, a score of 2 will use the class reportdata2, and so on. Missing data will use the class reportdata0. This feature is false by default. /* Report readout background colors for scores */ td.reportdata0 {color:#888888;background- color:#ffffff;} td.reportdata, td.reportdata1 {background-color:#ffffff;} /* white */ td.reportdata2 {background-color:#ffff44;} /* yellow */ td.reportdata3 {background-color:#ffaa44;} /* orange */ td.reportdata4 {background-color:#ff8866;} /* pink */ td.reportdata5 {background-color:#ff4444;} /* red */
Digit precision	Set the number of decimal digits to display to the right of the decimal point. Select default to use the number of display digits assigned to the point type.
Axes
Scale	Select the plot scale for this plot point: default: Let the plot program assign the plot scale. Left: Use the left plot scale. Right: Use the right plot scale. 3 - 9: Use the plot scales 3 - 9 to the right of the right plot scale.
Invert	Select the plot scale invert: normal: No inversion. Plot scale has highest on top and lowest on bottom. invert: Invert the plot scale from lowest on top to highest on bottom.
Display
Increment
Digits
Range	Select the plot scale range computation for this plot point: default: Use the plot data request scale parameter. auto: Let the plot program compute the plot scale. fixed: Use the plot scale limit to the right. point: Use the point plot scale limits.
Lower Limit	Lower plot scale limit for fixed plot range.
Upper Limit	Upper plot scale limit for fixed plot range
Graph Type
Type	Select the plot type for this plot point: line: Draw a line between plot points. point: Draw plot points only - no line. bar: Draw histogram bars. step: Draw stepped lines between plot points. area: Draw a line between plot points and fill in area under plot line. steparea: Draw a stepped line between plot points and fill in area under plot line.
Limit Number	Select the limit number for this plot point. Multiple plot points can be added to a plot that will plot point data in different colors for data ranges.
Lower Plot Level Limit	Plot data limit for this plot data range. All data values from this limit to the next are plotted with this plot point parameters. All data less than the first limit uses that limit's plot point parameters. All data greater than the last limit uses that limit's plot point parameters.
Line/Symbol
Line color	Plot line color for this level. Colors are: black, blue, cyan, gray, darkgray, lightgray, green, magenta, orange, pink, red, yellow.
Line type	Plot line type for this level. Line types are: solid, dashed, dotted.
Thickness	Plot line thickness in pixels for this level. Thicknesses are: 1.0, 1.5, 2.0, 2.5, ..., 5.0.
Shape color	Plot shape color for this level. Colors are: black, blue, cyan, gray, darkgray, lightgray, green, magenta, orange, pink, red, yellow.
Shape type	Plot shape at data points for this level. Shapes are: none, box, circle, diamond, ellipse, rectangle down, rectangle up, triangle up, triangle down, triangle left, triangle right.
Fill	Plot shape fill for this level: true or false.

Select Display Time and Interval

Select the period of record to query.

Select Display Time and Interval (see full-size image)

Data Label	Description
Starting Time	Select the starting time for the report. Click to set the starting time to start of day for ending time. Note: the starting time must be before the ending time.
Ending Time	Select the ending time for the report display. Select Current checkbox to continuously update the ending time to the next even 15 minutes past the current time.
Display Interval	Select the report point time interval for the report. Select Show Data Reports to report data reports at the data report time. This display interval is only used if the report point analysis display interval is set to Use Request Interval.
Refresh Interval	Select the interval to automatically refresh the report data display. This field is only available when the Ending Time is set to Current .

Select Data Analysis

These fields are hidden when the display interval is set to Show Data Reports.

Select Data Analysis (see full-size image)

Data Label	Description
Data Analysis	Select the data analysis for the plot data display. See the Data Analysis appendix for a description of the analysis types. Use default analysis will do the default analysis for the point type.
Data type	Select the type of data displayed: Scaled: Scaled or analysis value Raw: Raw data value Score: Nova score value Rating1-Rating5: Rating value 1 - 5 Date: Date of data report Time: Time of day of data report DateTime: Date and time of data report
Analysis Interval	The Rainfall Intensity data analysis requires an analysis interval.
Multiplier	Multiply the data analysis computed value by this constant.
Adder	Add this constant to the data analysis computed value.

Display Options

Select display options.

Select Display Options (see full-size image)

Data Label

Description

Display Only

Select the display data restrictions: All data: All data, valid or questioned Valid data: Data reports with a valid flag. A valid flag is automatically set by the system when data checking criteria is met. Verified data: Data reports with a verified flag. A verified flag is set by an operator using the data editor to certify that the data is valid. Maintenance data: Data reports with a maintenance flag. A maintenance flag is manually set by an operator to indicate test data not used for public viewing. The maintenance flag is also set when a point of station is out of service or when the data report received has the test flag set.

Options

Select options.

Select Options (see full-size image)

Data Label	Description
Legend	Select true to display the plot legend at the bottom of the plot, false for no legend.
Time interval	Select the plot time scale tick interval, default will automatically select an interval.

Report Display

Clicking the button displays the plot data.

Plot Examples and Interface Controls

Info

More documentation which includes plotting examples is coming!