297 lines
12 KiB
HTML
297 lines
12 KiB
HTML
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<html>
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<title>GFESuite Documentation - Editing Data Temporally</title>
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<body>
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<h1 align=center>Editing Data Temporally</h1>
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<br><a href="#EditingScalarDataTemporally">Editing Scalar Data Temporally</a>
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<br><a href="#EditingVectorDataTemporally">Editing Vector Data Temporally</a>
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<br><a href="#EditingWeatherDataTemporally">Editing Weather Data Temporally</a>
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<br><a href="#EditingDiscreteDataTemporally">Editing Discrete Data Temporally</a><!-- Leave this comment in for formatting purposes -->
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<hr width="100%">
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<h3 CLASS="2Heading">
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<a NAME="EditingScalarDataTemporally"></a>Editing Scalar Data Temporally</h3>
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<ul>
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<li CLASS="4Heading">
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<b>Purpose:</b> Modify a scalar grid values using the temporal editor</li>
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</ul>
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<div CLASS="Body">Before you begin: Set up your GFE so that the spatial
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and temporal editors are visible. Load T (temperature) via the Weather
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Element->Weather Element Browser... dialog.</div>
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<div CLASS="Step-First">
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<ol>
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<li>
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Make or find a temperature grid and display it as an image in the spatial
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editor.</li>
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<li>
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Clear the edit area by clicking MB1 on the Clear button.</li>
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<li>
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Use the Select Points tool to define an edit area the size of a few counties.</li>
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<li>
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Find the T (temperature) weather element in the temporal editor. Vertically
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stretch the size of the temporal editor pane so that there's plenty of
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room to see the time series display.</li>
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<li>
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In the temporal scale, located to the left of the time series display,
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click MB2 to zoom in until the minimum and maximum values are about 20
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degrees F apart.</li>
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<li>
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Find the data point in the time series that represents the grid displayed
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in the spatial editor. This point is identified by the dotted yellow line.</li>
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<li>
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Click MB1 about 10 degrees F above the data point. Note the change in the
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spatial editor display. All the points you identified in the spatial editor
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have been assigned the value you selected in the temporal editor.
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This is called the "absolute" mode for temporal editing.</li>
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<li>
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Initialize about 12 hours worth of temperature data from you favorite model.
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Use the interpolation facility (Grids->Interpolate) to fill in the gaps
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and get a smooth time-series curve.</li>
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<li>
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Back in the temporal editor pane, move the cursor to somewhere near left
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side of the time-series display. Move the cursor over one of the horizontal
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lines that display the temporal values and press and hold MB1 and slowly
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drag horizontally to define a new temperature curve. As you move the cursor
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to the next data point, it should snap to your cursor position. Each time
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this happens, you are modifying data in a different grid. Note that you
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MUST start the edit operation over one of the displayed values. Starting
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the operation in a gap will not modify any data.</li>
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<li>
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Release MB1.</li>
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<li>
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Step through your newly-modified grids using the Grid Manager or the Step
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Forward / Step Backwards buttons
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to see that you modified a series of grids with one edit operation.</li>
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</ol>
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</div>
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<div CLASS="Body">Repeat this exercise until you are comfortable using
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the Adjust Scalar temporal tool. This and all the temporal tools are capable
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of modifying a large quantity of data with only a few edit operations.
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Used properly, these tools can save you lots of time.</div>
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<h3 CLASS="2Heading">
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<a NAME="EditingVectorDataTemporally"></a>Editing Vector Data Temporally</h3>
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<ul>
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<li CLASS="4Heading">
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<b>Purpose:</b> Modify a vector grid values using the temporal editor</li>
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</ul>
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<div CLASS="Body">Before you begin: Set up your GFE so that the spatial
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and temporal editors are visible. Load Wind via the Weather Element->Weather
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Element Browser... dialog. Make sure that the GFE->Editing Preferences->Temporal
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Edit Mode: Relative is deselected..</div>
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<div CLASS="Step-First">
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<ol>
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<li>
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Make or find a Wind grid and display it as an image in the spatial editor.</li>
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<li>
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Set the Vector edit mode located main menu bar GFE->Editing Preferences->Vector
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Edit Mode->Both to edit both magnitude and direction.</li>
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<li>
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Use the Select Points tool to define an edit area the size of a few counties.</li>
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<li>
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Find the Wind weather element in the temporal editor. Vertically stretch
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the size of the temporal editor pane so that there's plenty of room to
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see the time series display.</li>
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<li>
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In the temporal scale, located to the left of the time series display,
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click MB2 to zoom in until the minimum and maximum values are about 20
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knots F apart. Clicking MB1 zooms out. Dragging MB1 pans the scale.</li>
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<li>
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Find the data point in the time series that represents the grid displayed
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in the spatial editor. This point is identified by the dotted yellow line.</li>
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<li>
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Click MB1 about 10 knots above the data point. Note the change in the spatial
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editor display. All the points you identified in the spatial editor have
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been assigned the value you selected in the temporal editor.</li>
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<li>
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Release MB1.</li>
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<li>
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Press and hold MB1 and move the cursor up or down to adjust the vector
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data point again. Note how the wind barb updates as you adjust the magnitude.</li>
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<li>
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Release MB1.</li>
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</ol>
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</div>
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<div CLASS="Body">If you're editing wind magnitude only, the vector adjust
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tool works just like the scalar adjust tool. It's when you edit the direction
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that things get interesting.</div>
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<ol>
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<li CLASS="Step">
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Press and hold down the Shift key on your keyboard.</li>
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<li CLASS="Step">
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Move the cursor over any wind data point, press and hold MB1 and adjust.
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Note that the wind direction is changing while the magnitude remains constant.
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The wind direction shifts from North clockwise and back to North as you
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move from the lower extreme of the temporal pane to the upper extreme of
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the temporal pane.</li>
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<li CLASS="Step">
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Release MB1.</li>
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</ol>
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<div CLASS="Body">This exercise demonstrates that with the Shift button
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up, the temporal adjust vector tool changes the magnitude. With the Shift
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button down, the tool changes the wind direction.</div>
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<h3 CLASS="2Heading">
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<a NAME="EditingWeatherDataTemporally"></a>Editing Weather Data Temporally</h3>
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<ul>
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<li CLASS="4Heading">
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<b>Purpose:</b> Modify a weather grid values using the temporal editor</li>
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</ul>
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<div CLASS="Body">Before you begin: Set up your GFE so that the spatial
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and temporal editors are visible. Load Wx via the Weather Element->Weather
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Element Browser... dialog. Make sure that the TE Edit Mode: Relative button
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is still de-selected.</div>
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<div CLASS="Step-First">
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<ol>
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<li>
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Make or find a Wx grid and display it as an image in the spatial editor.</li>
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<li>
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Use the Select Points tool to define an edit area the size of a few counties.</li>
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<li>
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Find the Wx weather element in the temporal editor. Vertically stretch
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the size of the temporal editor pane so that there's plenty of room to
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see the time series display.</li>
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<li>
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In the Spatial Editor legend, select a pickup value by clicking MB2. You
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may need to invoke the <a href="ButtonBarDialogs.html#PickUpValueDialog">set
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value dialog</a> to add additional weather types.</li>
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<li>
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Find the data point in the time series that represents the grid displayed
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in the spatial editor. This point is identified by the dotted yellow line.</li>
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<li>
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Click MB1 on this data point in the Wx pane of the temporal editor. You
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should see the temporal editor paint the same color/pattern as you selected
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in the spatial editor legend. The spatial editor will show you that the
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area that you selected in Step 2 has been set to this new value. Even if
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there were multiple weather types displayed previously, when the MB1 action
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is executed, all grid points in the edit area will be set to the new value.</li>
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</ol>
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There are several other ways to change the data in the temporal editor
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for Wx. A MB3 popup menu over a data point in the time series will
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bring up a menu containing several items. The items that will edit
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the data are Set..., Set to Recent Value..., and Set to Common Value....
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The Set... brings up the <a href="TemporalEditorDialogs.html#SetWeatherDialog">Set
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Weather Dialog</a>. The Set to Recent Value brings up a cascade menu
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of recently set pickup values for weather, and the Set to Common Value...
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brings up a cascade menu of commonly set pickup values. Unlike the
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<a href="Button3Popups.html#SpatialEditorColorBarPopupMenu">color
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bar on the spatial editor</a>, these menu entries set not only the pickup
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value, but also modify the data.
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<p>The set of common weather values are site-configurable through the gfe
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configuration file's <a href="gfeConfig.html#WeatherCommonValueDefinitions">common
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weather values entry</a>.
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<br></div>
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<div CLASS="Body">The temporal Set Value tool does not support drag operations
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as with the scalar and vector tools. Only MB1 clicks, or selection of a
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common value, recent value, or using the Set... will modify data in the
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Wx pane.
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<p>MB2 click on a weather value in the temporal editor display can also
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be used to set the pick-up value.
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<br>
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<h3 CLASS="2Heading">
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<a NAME="EditingDiscreteDataTemporally"></a>Editing Discrete Data Temporally</h3>
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<ul>
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<li CLASS="4Heading">
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<b>Purpose:</b> Modify a discrete grid values using the temporal editor</li>
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</ul>
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<div CLASS="Body">Before you begin: Set up your GFE so that the spatial
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and temporal editors are visible. Load Wx via the Weather Element->Weather
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Element Browser... dialog. Make sure that the TE Edit Mode: Relative button
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is still de-selected.</div>
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<div CLASS="Step-First">
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<ol>
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<li>
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Make or find a DISCRETE grid, such as Headlines, and display it as
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an image in the spatial editor.</li>
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<li>
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Use the Select Points tool to define an edit area the size of a few counties.</li>
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<li>
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Find the DISCRETE weather element in the temporal editor. Vertically stretch
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the size of the temporal editor pane so that there's plenty of room to
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see the time series display.</li>
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<li>
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In the Spatial Editor legend, select a pickup value by clicking MB2. You
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may need to invoke the <a href="ButtonBarDialogs.html#PickUpValueDialog">set
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value dialog</a> to add additional discrete types for the weather element
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you have chosen.</li>
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<li>
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Find the data point in the time series that represents the grid displayed
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in the spatial editor. This point is identified by the dotted yellow line.</li>
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<li>
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Click MB1 on this data point in the Discrete pane of the temporal editor.
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You should see the temporal editor paint the same color/pattern as you
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selected in the spatial editor legend. The spatial editor will show you
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that the area that you selected in Step 2 has been set to this new value.</li>
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</ol>
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There are several other ways to change the data in the temporal editor
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for discrete weather elements. A MB3 popup menu over a data point
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in the time series will bring up a menu containing several items.
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The items that will edit the data are Set..., Set to Recent Value..., and
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Set to Common Value.... The Set... brings up the <a href="TemporalEditorDialogs.html#SetDiscreteDialog">Set
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Discrete Dialog</a>. The Set to Recent Value brings up a cascade
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menu of recently set pickup values for weather, and the Set to Common Value...
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brings up a cascade menu of commonly set pickup values. Unlike the
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<a href="Button3Popups.html#SpatialEditorColorBarPopupMenu">color
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bar on the spatial editor</a>, these menu entries set not only the pickup
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value, but also modify the data.
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<p>The set of common discrete values are site-configurable through the
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gfe configuration file's <a href="gfeConfig.html#WeatherCommonValueDefinitions">common
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discrete values entry</a>.
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<br> </div>
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<div CLASS="Body">The temporal Set Value tool does not support drag operations
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as with the scalar and vector tools. Only MB1 clicks, or selection of a
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common value, recent value, or using the Set... will modify data in the
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pane containing the Discrete weather element.
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<p>MB2 click on a discrete value in the temporal editor display can also
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be used to set the pick-up value.</div>
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</body>
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</html>
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