469 lines
17 KiB
HTML
469 lines
17 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"
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content="text/html; charset=iso-8859-1">
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<meta name="GENERATOR"
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content="Mozilla/4.79 [en] (X11; U; Linux 2.4.9-34smp i686) [Netscape]">
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<meta name="Author" content="Deb Miller">
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<title>Color Chooser and Color Table Editor</title>
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</head>
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<body bgcolor="#ffffff">
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<h1>
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Color Chooser and Color Table Editor Dialogs</h1>
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The <a href="#ColorChooser">color chooser</a> and <a
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href="#ColorTableEditor">color
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table editor</a> dialogs are used to define custom colors and color
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tables
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for the GFE.
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<p></p>
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<hr width="100%">
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<h2><a name="ColorDialog"></a><a name="ColorChooser"></a>Color Chooser
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Dialog</h2>
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<p><br>
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The Color Chooser Dialog is invoked from the GFE when you depress
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MB3 over the graphic contour label in the spatial editor.
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When
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you MB3 graphic contour label, select the following sequence from
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the pop-up menus: 'Change Color' -> 'Choose Color'.<b><font
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size="+1"></font></b>
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</p>
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<center>
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<p><a name="Figure1a.ColorChooserDialog"></a><b><font size="+1"> Color
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Chooser
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Dialog</font></b></p>
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</center>
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<center>
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<h1><img src="images/ColorChooser.jpg"></h1>
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</center>
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<p><br>
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The Color Chooser Dialog can be used to change a single-colored
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graphical feature (i.e., a contour).
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</p>
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<p>The Color Chooser Dialog consists of Hue, Saturation and Value (same as Brightness)
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entry fields, a color wheel, a color swatch to indicate the old or
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current color (bottom left corner), a color swatch to reflect the selected color, an "OK" button
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and a "Cancel" button. The old color swatch (left) indicates the current
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contour color until the 'OK' or 'Cancel' button is selected.</p>
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</p>
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<p>If you MB1 over the color wheel to the desired color, the circle
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marker
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is updated to the cursor location. The selected color is echoed
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in
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the 'NEW' color swatch and the Hue, Saturation and Brightness sliders
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move
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to the appropriate values corresponding to your selected color.</p>
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<p>For advanced users, in A2,
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an option to select color values numerically is also available as entry fields to the right
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of the Hue/Saturation/Value entry fields and Color Name entry field that accepts color
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names in hex. Also new in A2, the user now has the option of
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selecting the general color family from the Palette row of colors along the bottom of the
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dialog display. Lastly, the pipette icon allows the user to set the color by sampling it from
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anywhere on the screen.</p>
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<p>If you want to change your graphical-feature, a.k.a. contour, to the new
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color,
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select the 'OK' button. Otherwise the 'Cancel' button dismisses
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the
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Color Chooser without change to your graphical contour.
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</p>
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<p>A new color can also be selected using the Hue, Saturation or
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Value entry fields.
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</p>
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<p>The various components of the ColorChooser are shown in the
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following
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table:
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<br>
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<table nosave="" border="1" width="100%">
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<tbody>
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<tr>
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<td><b>Component</b></td>
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<td><b>Description</b></td>
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</tr>
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<tr>
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<td>Hue Entry Field</td>
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<td>Using MB1 or MB2, the Hue up/down arrows can be moved from 0 to 360
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degrees. Alternately, the new value can be manually typed into the field followed by Return.
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When the Hue value is modified, the circle marker on the color wheel will
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correspond to the Hue value in.
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Simultaneously, the new color will be indicated in the new color
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swatch.</td>
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</tr>
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<tr>
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<td>Saturation Entry Field</td>
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<td>Using MB1 or MB2, the Saturation up/down arrows can be moved from 0
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to 100 percent. Alternately, the new value can be manually typed into the field followed
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by Return. When the Saturation value is modified, the circle marker on
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the color wheel will move along the radius indicating the appropriate color
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with 0 percent saturation representing white.
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Simultaneously, the new color will be indicated in the new color swatch.</td>
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</tr>
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<tr>
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<td>Value Entry Field</td>
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<td>Using MB1 or MB2, the Brightness up/down arrows can be moved from 0
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to 100 percent. Alternately, the new value can be manually typed into the field followed
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by Return. When the Brightness value is modified, the color wheel and
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the new color swatch reflects the brightness selection with 0 percent
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brightness representing black. Please note that there may be a
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short delay in updating the color wheel.</td>
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</tr>
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<tr>
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<td>Red</td>
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<td>Represents numeric value for the amount of red within the color.
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Can be either manually
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typed in, or selected using MB1 or MB2 to move up/down arrows. The color wheel
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and the new swatch will be modified simultaneously. Accepts values between 0 and
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255.</td>
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</tr>
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<tr>
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<td>Green</td>
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<td>Represents numeric value for the amount of green within the color.
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Can be either manually
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typed in, or selected using MB1 or MB2 to move up/down arrows. The color wheel
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and the new swatch will be modified simultaneously. Accepts values between 0 and
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255.</td>
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</tr>
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<tr>
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<td>Blue</td>
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<td>Represents numeric value for the amount of blue within the color.
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Can be either manually
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typed in, or selected using MB1 or MB2 to move up/down arrows. The color wheel
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and the new swatch will be modified simultaneously. Accepts values between 0 and
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255.</td>
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</tr>
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<tr>
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<td>Color Name</td>
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<td>Represents the hex value for the selected the color.
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This field is typed in manually and must be a valid color value.
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The color wheel
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and the new swatch will be modified simultaneously.</td>
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</tr>
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<tr>
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<td>Palette</td>
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<td>Allows the selection of the color family, i.e. shade.
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MB1 on the selected swatch to select the shade.
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The color wheel
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and the new swatch will be modified simultaneously.</td>
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</tr>
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<tr>
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<td>Pipette Icon</td>
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<td>Allows color sampling from the screen.
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MB1 on the pipette icon, then anywhere on the screen to select the color.
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The color wheel
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and the new swatch will be modified simultaneously.</td>
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</tr>
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<tr>
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<td>ColorWheel</td>
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<td>Contains a small circle showing the current value specified
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by the
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sliders. The color wheel will dim and brighten as the Brightness
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slider is changed.</td>
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</tr>
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<tr>
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<td>OLD Swatch</td>
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<td>The previous color (current color when the dialog is first
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presented)
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is shown.</td>
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</tr>
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<tr>
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<td>NEW Swatch</td>
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<td>The new chosen color is shown.</td>
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</tr>
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</tbody>
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</table>
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<br>
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</p>
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<p></p>
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<hr width="100%">
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<h2><a name="ColorTableEditorDialog"></a><a name="ColorTableEditor"></a>ColorTableEditorDialog</h2>
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The ColorTableEditor Dialog is invoked from the GFE when you MB3 over
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the color bar spectrum. Select the following sequence from the
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pop-up
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menus: 'Change Color Table to'->'Edit Color
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Table'. The dialog
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can also be opened by clicking MB3 on the contour map of an element
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and selecting Edit Colors...
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<p>The ColorTableEditor is used for Scalar and Vector data types.
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There is no editor currently available for the Weather data type; the
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Weather
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data type is configured through the <a href="gfeConfig_WECol.html">gfe
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configuration file weather color table definitions</a>. The
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ColorTableEditor
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for Discrete data types use the same data source as Scalar/Vector, but
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its operations are different. Generally it is a good idea to
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separate
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out color tables for Scalar and Vector, from color tables for Discrete.
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<br>
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</p>
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<h3>Scalar/Vector Color Table Editing</h3>
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<p><br>
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</p>
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<center>
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<p><a name="Figure2a.ColorTableEditorDialog"></a><b><font size="+1">ColorTableEditor
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Dialog (Scalar/Vector)</font></b></p>
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</center>
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<center>
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<h1><img src="images/ColorTableEditor.jpg"></h1>
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</center>
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The Color Table Editor Dialog can be used to create a new color
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spectrum
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for a multi-colored graphical feature (i.e., an image).
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<p>The Color Table Editor contains a <a href="#ColorChooser">Color
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Chooser</a>
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(without the old color swatch area). A color spectrum
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appears
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in the middle section of the dialog. The left and right
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triangular
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pointers are labeled with minimum and maximum numerical values
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corresponding
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to the weather product. The '>>' and '<<' buttons enable
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the user
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to move the pointers in an increment defined by the two entry
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fields.
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The top row of the dialog allows the user to select RGB or HSB color model.
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The bottom half of the dialog contains several buttons that control the
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operations performed on the spectrum: 'Interpolate', 'Undo',
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'Revert', 'Save...', 'Delete...' and 'Office Save As' buttons.
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The 'Fill' and 'Set' buttons appear to the right of the top and bottom
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spectrum selection areas. Please note in AWIPS2 any changes are applied
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automatically. The user has to exit and re-enter GFE should they accidentally
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exit the color chooser without reverting.
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</p>
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<p>After a color is selected using MB1 (i.e., MB1 somewhere within the
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spectrum) or the <a href="#ColorChooser">Color Chooser</a>,
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it is reflected in the rectangular color swatch. To modify
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the spectrum with the selected color, MB1 over either the left or
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right pointer. The triangular area will assume the color of the
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color
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swatch. With the MB1, the left or right pointer can be moved to
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the
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desired weather product value.
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</p>
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<blockquote><a name="Exercise1"></a><b><i><font size="+1">Exercise 1</font></i></b>
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<p>1. Make Temperature an image on the GFE. </p>
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<p>2. From the color bar, MB3->Change Color Table To...'->Edit Color Table...' </p>
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<p>3. Select a color using the <a href="#ColorChooser">Color
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Chooser</a>
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portion of the Color Table Editor.</p>
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<p>4. MB1 over the left pointer and move the pointer to
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50
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degrees Fahrenheit. The left triangular pointer will assume the
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color
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of the selected color and the color swatch will assume the new color. </p>
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<p>5. Slide the top arrow to 40 degree F location of the
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spectrum.</p>
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<p>6. MB1 over the right pointer and move the pointer to
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50
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degrees Fahrenheit. The right pointer will now assume the color
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of
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the color swatch. </p>
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<p>7. Select the '>' button. The left and right
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pointers will
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advance 1 degree F to the right. </p>
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<p>8. Select the '<' button. The right and left
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pointers
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will decrease 1 degree F to the left. </p>
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<p>9. MB1 over the desired color on the spectrum. The
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color
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chosen will be reflected in the color swatch. </p>
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<p>10. MB1 on the right pointer. The right pointer will
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now
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assume the color in the color swatch.</p>
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</blockquote>
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After completing Exercise 1, you can modify
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the
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selected portion of the spectrum (eq., area between 40 and 90 degrees
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Fahrenheit)
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with the buttons located on the top half, bottom half, and right of the dialog: 'Fill',
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'Set', 'Interpolate',
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'Undo', 'Revert', 'Save...', 'Delete...' or 'Office Save As...'.
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<p>The various controls are described in the following table:
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<br>
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<table nosave="" border="1" width="100%">
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<tbody>
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<tr>
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<td><b>Control</b></td>
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<td><b>Description</b></td>
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</tr>
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<tr>
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<td>Fill</td>
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<td>The 'Fill' button, will fill the selected portion of the
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spectrum.</td>
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</tr>
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<tr>
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<tr>
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<td>Set</td>
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<td>The 'Set' button, will set the selected value of the
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spectrum.</td>
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</tr>
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<tr>
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<td>Interpolate</td>
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<td>You can linearly interpolate the area selected between the
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pointers
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with one of two linear interpolation methods: Red-Green-Blue
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interpolation
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(i.e., 'RGB Interpolation' button) or Hue-Saturation-Brightness
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interpolation
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(i.e., 'HSB Interpolation' button).
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<p>The HSB interpolation will 'linearly' interpolate along the
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shortest
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angle of the color wheel indicated by the colors of the pointers.
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The RGB interpolation will linearly interpolate along the 0-255
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color
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intensity scale of red, green and blue between the colors of the
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pointers.</p>
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</td>
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</tr>
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<tr>
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<td>Undo</td>
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<td>The 'Undo' button will restore the previous spectrum.</td>
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</tr>
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<tr>
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<td>Redo</td>
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<td>The 'Redo' button will restore the previously undone spectrum.</td>
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</tr>
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<tr>
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<td>Revert</td>
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<td>The 'Revert' button will restore the original spectrum with
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which the
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Color Table Editor Dialog started.</td>
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</tr>
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<tr>
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<td>Save</td>
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<td>'Save' saves the changes to the currently loaded color table.</td>
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</tr>
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<tr>
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<td>Save As...</td>
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<td>'Save As' brings up a dialog from which the user may enter a
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name of a
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color table. The color table is stored under this name and the
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Transient
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color table in use is removed. 'Save' has an implicit
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'Apply'.
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You cannot save a Transient color table to EDEX.</td>
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</tr>
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<tr>
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<td>Office Save As...</td>
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<td>'Office Save As' brings up a dialog from which the user may enter a
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name of a
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color table specifically for the office currently loaded.</td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td>Delete...</td>
|
||
|
|
<td>You can 'Delete' an existing color table and it doesn't need
|
||
|
|
to be
|
||
|
|
the one that is displayed. A dialog will be displayed showing a
|
||
|
|
list
|
||
|
|
of names. Highlight or type in an identifier and enter
|
||
|
|
'Okay'.
|
||
|
|
You can delete Transient color tables that exist in you GFE and other
|
||
|
|
color
|
||
|
|
tables that are stored on the server. <font color="#ff0000">CAUTION:
|
||
|
|
If you delete a spectrum that is being used by another user, their
|
||
|
|
spectrum
|
||
|
|
will revert to the default spectrum. Please consider carefully
|
||
|
|
before
|
||
|
|
using the 'Delete' button.</font></td>
|
||
|
|
</tr>
|
||
|
|
</tbody>
|
||
|
|
</table>
|
||
|
|
</p>
|
||
|
|
<blockquote><b><i><font size="+1">Exercise 2</font></i></b>
|
||
|
|
<p>1. Do <i><a href="#Exercise1">Exercise 1</a>.</i> </p>
|
||
|
|
<p>2. Select the HSB color model, then click 'Interpolate'. The selected area of the
|
||
|
|
spectrum
|
||
|
|
will be linearly interpolated along the HSB color scheme.</p>
|
||
|
|
<p>3. Select the RGB color model, then click 'Interpolate'. The selected area of the
|
||
|
|
spectrum
|
||
|
|
will be linearly interpolated along the RGB color scheme. </p>
|
||
|
|
<p>4. Select 'Undo'. The selected area of the spectrum
|
||
|
|
will
|
||
|
|
be restored to the pre-interpolation state. </p>
|
||
|
|
<p>5. Select 'Fill'. The selected area of the spectrum
|
||
|
|
will
|
||
|
|
be filled with the color in the color swatch. </p>
|
||
|
|
<p>6. Select 'Undo'. The selected area of the spectrum
|
||
|
|
will
|
||
|
|
be restored to previous spectrum. </p>
|
||
|
|
<p>7. Select 'Set'. The selected area of the
|
||
|
|
spectrum will
|
||
|
|
be set to the color you selected. </p>
|
||
|
|
<p>8. Select 'Undo'. The selected area of the spectrum
|
||
|
|
will
|
||
|
|
be restored.</p>
|
||
|
|
<p>9. Select 'Revert'. The original spectrum that you
|
||
|
|
began
|
||
|
|
with is restored. </p>
|
||
|
|
<p>10. Select the RGB color model and click 'Interpolate'. The selected area of the
|
||
|
|
spectrum
|
||
|
|
will again be linearly interpolated along the RGB color scheme.</p>
|
||
|
|
<p>12. Select 'Save'. The new spectrum will be saved to the currently
|
||
|
|
loaded color map.</p>
|
||
|
|
<p>13. Select 'Save As...'. The 'Save Color
|
||
|
|
Table'
|
||
|
|
dialog is brought up and you are prompted for a name (i.e., identifier)
|
||
|
|
for the spectrum that you've just created. </p>
|
||
|
|
<p>14. Select 'OK'. The new spectrum is now saved. </p>
|
||
|
|
<p>15. Select 'Delete'. The 'Delete Color Table'
|
||
|
|
dialog
|
||
|
|
allows you to highlight the spectrum to be deleted or type in the
|
||
|
|
identifier. <font color="#ff0000">CAUTION:
|
||
|
|
If you delete a spectrum that is being used by another user, their
|
||
|
|
spectrum
|
||
|
|
will revert to the default spectrum. Please consider carefully
|
||
|
|
before
|
||
|
|
using the 'Delete' button..</font> </p>
|
||
|
|
<p>16. Click the X mark in the top right corner. The dialog will
|
||
|
|
exit, however all changes are applied automatically.<br>
|
||
|
|
<br>
|
||
|
|
</p>
|
||
|
|
</blockquote>
|
||
|
|
<h3>
|
||
|
|
Discrete Color Table Editing</h3>
|
||
|
|
<p><br>
|
||
|
|
</p>
|
||
|
|
<center>
|
||
|
|
<p><a name="Figure2aColorTableEditorDialogDiscrete"></a><b><font
|
||
|
|
size="+1">ColorTableEditor
|
||
|
|
Dialog (Discrete)</font></b></p>
|
||
|
|
</center>
|
||
|
|
<center>
|
||
|
|
<h1><img src="images/DialogColorTableDiscrete.jpg" nosave="" title=""
|
||
|
|
alt="DialogDiscreteColorTable"></h1>
|
||
|
|
</center>
|
||
|
|
The Discrete Color Table Editor Dialog can be used to create a new
|
||
|
|
color
|
||
|
|
spectrum for a multi-colored graphical feature (i.e., an image).
|
||
|
|
<p>The Discrete ColorTable Editor contains a <a href="#ColorChooser">Color
|
||
|
|
Chooser</a> (without the old color swatch area).
|
||
|
|
A color spectrum appears in the middle section of the dialog. The
|
||
|
|
text label contains the selected weather product name and units.
|
||
|
|
In AWIPS2 all of the buttons on the Color Table Editor for Scalar/Vector are
|
||
|
|
available on the Discrete Color Table Editor.
|
||
|
|
</p>
|
||
|
|
<p>After a color is selected using MB1 click (i.e., MB1 somewhere
|
||
|
|
within
|
||
|
|
the spectrum) or the <a href="#ColorChooser">Color Chooser</a>,
|
||
|
|
it is reflected in the rectangular color swatch. To modify
|
||
|
|
the spectrum with the selected color, MB1 click over the desired
|
||
|
|
discrete key. When you move the mouse over a "block" in the spectrum,
|
||
|
|
the value of that "block", i.e., the discrete key, will be
|
||
|
|
displayed.<br>
|
||
|
|
</p>
|
||
|
|
<p>Note that Discrete color tables and Scalar color tables should not
|
||
|
|
be shared. Discrete color tables that are saved to EDEX
|
||
|
|
contain exactly the same number of entries as the possible entries in
|
||
|
|
the defined Discrete key. For example, if a KeyTest element
|
||
|
|
contains exactly 3 colors and you reuse that color
|
||
|
|
spectrum for a scalar/vector weather element, then there will only be
|
||
|
|
three colors in that color table.<br>
|
||
|
|
</p>
|
||
|
|
<p>If a discrete color table has
|
||
|
|
been saved to disk, then the definition for the discrete weather
|
||
|
|
element is expanded, then the new entries will be assigned to "black"
|
||
|
|
until the color table editor is used to define these colors. The
|
||
|
|
original colors for the original set of discrete keys will remain
|
||
|
|
assigned.<br>
|
||
|
|
</p>
|
||
|
|
</body>
|
||
|
|
</html>
|