102 lines
6.3 KiB
HTML
102 lines
6.3 KiB
HTML
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta name="GENERATOR" content="Mozilla/4.79 [en] (X11; U; Linux 2.4.9-34smp i686) [Netscape]">
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<title>Grid Manager Actions</title>
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</head>
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<body>
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<b><font color="#3333FF"><font size=+2>Grid Manager actions</font></font></b>
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<br>
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<p><a NAME="StretchAGrid"></a><font color="#3333FF"><font size=+2>Stretch
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the valid time of any grid block.</font></font>
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<p><font color="#000000">The Grid Manager has a built-in tool for stretching
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the time over which a grid is valid. Move the cursor to the grid
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block that you want to stretch. Press and hold MB2 while moving the
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cursor to the left or right. Stretching the grid block to the left
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changes the grid's start time while stretching the grid block to the right
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changes that grid's end time. Note that you can only stretch the
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start time or the end time per operation. To stretch both times,
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you must perform this operation twice. See the section <a href="GFETrainingGridMgr.html#Stretchagridsvalidtimeperiod">Stretch
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a grid's valid time period</a> in GFE Training Guide for more information.</font>
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<p><a NAME="CopyGrid"></a><font color="#3333FF"><font size=+2>Copy the
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contents of one grid block into another grid block.</font></font>
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<p><font color="#000000">This task is accomplished using the MB3 pop-up
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menu from inside the Grid Manager. Move the cursor over the grid
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block that you wish to copy from. Press and hold MB3 and select "</font><font color="#FF0000">Copy
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Grid</font><font color="#000000">" from the pop-up menu. Next, move
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your cursor to the time at which you want to paste this grid. Press
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and hold MB3 again, but this time select "</font><font color="#FF0000">Paste
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Grid</font><font color="#000000">". Note that you can paste the grid
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into a gap or onto an existing grid. Just the grid data values are
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changed when pasting a grid. The valid time is not affected.
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See the section in the GFE Training Guide, <a href="GFETrainingGridMgr.html#CopyGrids">Copy
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Grid</a> for more information.</font>
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<p><a NAME="SelectTimeRange"></a><font color="#3333FF"><font size=+2>Select
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a time range and list of parameters, then copy data from a selected model
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into the FCST database.</font></font>
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<p><font color="#000000">This is a two-part task. First you must
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select the time range, then copy grids from a model. To select the
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time range, move the cursor to the start time of the selection and
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over the first weather element you want to select. Press and hold
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MB1 and drag diagonally. Motion in the horizontal direction selects
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the time range. Motion in the vertical direction selects weather
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element. When you have selected the time range and the set of weather
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elements you want, release MB1. For more information on selecting
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weather elements and time ranges in this way, see the GFE Training Guide
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section <a href="GFETrainingGridMgr.html#SelectWEandTimeRange">Select Weather
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Element and TimeRange</a>.</font>
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<p><font color="#000000">Next, you need to identify the model source to
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copy in to your selected Weather Element/TimeRange. Go to the main
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menu and select </font><font color="#FF0000">Populate->Copy Selected Grids
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From...</font><font color="#000000"> A dialog that contains all model
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versions that are curently available will appear. Select the model
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of your choice and select </font><font color="#FF0000">OK</font><font color="#000000">.
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Grids generated from that model will be copied into your forecast.
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For more information on this operation, see the GFE Training Guide, section
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<a href="GFETrainingGridMgr.html#CopyfromDerivedModelGrids">Copy
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from Derived Model Grids</a>.</font>
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<p><a NAME="CreateFromScratch"></a><font color="#3333FF"><font size=+2>Create
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a grid from Scratch. Stretch the valid time of that grid and split it into
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more than one grid.</font></font>
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<p><font color="#000000">This is a three-part task. To create a grid
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from scratch, move your cursor over the weather element/timerange you wish,
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press and hold MB3 to display the pop-up menu, and select "</font><font color="#FF0000">Create
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From Scratch</font><font color="#000000">". You will see a new grid
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block appear in the Grid Manager. See the section, <a href="GFETrainingGridMgr.html#CreateGridfromScratch">Create
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Grid from Scratch</a> in the GFE Training Guide for more information.</font>
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<p><font color="#000000">To stretch the valid time of the newly created
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grid, see the instructions above, <a href="#StretchAGrid">Stretch the valid
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time of any grid block</a>.</font>
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<p><font color="#000000">Finally, to split the grid block, select a portion
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of it using the instructions Select a time range... Then MB3 press
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to display the pop up menu and select "Spilt Grid". You will end
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up with two grids whose time boundaries are defined by whatever time range
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you selected.</font>
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<p><a NAME="AssignNullValue"></a><font color="#3333FF"><font size=+2>Assign
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a "null" value to an entire grid.</font></font>
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<p><font color="#000000">To assign a "null" value (usually the lowest allowable
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value) just move your cursor over your grid of choice and MB3 press
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to display the pop-up menu. Select "</font><font color="#FF0000">Assign
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[value]</font><font color="#000000">" where [value] is the null value defined
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for that weather element. You will see that the null value was assigned
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to every grid point in the grid. See the section <a href="GFETrainingGridMgr.html#AssignDefaultValue">Assign
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Default Value</a> in the GFE Training Guide.</font>
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<p><a NAME="TimeShiftGrids"></a><font color="#3333FF"><font size=+2>Select
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several grids and use Time Shift to move the grids to another time
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period.</font></font>
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<p><font color="#000000">To TimeShift grids, you first need to select them.
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See the section in the Grid Manager Training <a href="GFETrainingGridMgr.html#SelectWEandTimeRange">Select
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Weather Element and TimeRange</a> for more information on selecting
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grids.</font>
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<p><font color="#000000">Next, from the Main Menu select </font><font color="#FF0000">Grids->Time
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Shift...</font><font color="#000000"> to display the <a href="MainMenuDialogs.html#TimeShiftDialog">Time
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Shift Dialog</a>. Use the radio buttons to indicate whether to copy
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or move and the slider to indicate how many hours to time shift.
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Then select </font><font color="#FF0000">OK</font><font color="#000000">.
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Watch what happens to the grid that you selected.</font>
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<br>
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<br>
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</body>
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</html>
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