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770 lines
29 KiB
770 lines
29 KiB
<sect1 id="commands-palettes">
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<title>Palettes</title>
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<para>
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This section describes &chalk;'s palettes. The palettes are usually found at
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the right hand side of &chalk;'s main window. There are three palettes which
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help you in customizing your images:
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</para>
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<sect2 id="commands-palettes-controlbox">
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<title>The <guilabel>Control box</guilabel> palette</title>
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<para>The <guilabel>Control box</guilabel> contains three tabs. You can get an
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overview of the image, view a color histogram, and modify options for the
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current tool.</para>
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<sect3 id="commands-palettes-controlbox-overview">
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<title><guilabel>Overview</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Overview</guilabel> tab</screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-overview.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Overview</guilabel> tab</phrase>
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</textobject>
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<caption><para>The <guilabel>Overview</guilabel> tab</para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>This tab offers you two settings. With the spinbox, slider, and
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<guibutton>1:1</guibutton> button at the bottom, you can set the zoom level
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for the document. The <guilabel>Exposure</guilabel> slider and textbox can be
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used to choose the exposure level for OpenEXR images. Furthermore, the
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<guilabel>X</guilabel> and <guilabel>Y</guilabel> labels indicate the current
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pointer position, with (0,0) being the top left corner of the canvas.</para>
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</sect3>
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<sect3 id="commands-palettes-controlbox-histogram">
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<title><guilabel>Histogram</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Histogram</guilabel> tab</screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-histogram.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Histogram</guilabel> tab</phrase>
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</textobject>
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<caption><para>The <guilabel>Histogram</guilabel> tab</para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>This tab displays a color histogram showing the distribution of
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colors over the image. The histogram is split up in red, green and blue
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levels.</para>
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</sect3>
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<sect3 id="commands-palettes-controlbox-tool">
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<title><guilabel>Tool</guilabel></title>
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<para>Actually, there is no tab named like this, since the tab name changes to
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reflect the name of the currently selected tool. This tab shows the
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customization options available for the tools that have them.</para>
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<sect4 id="commands-palettes-controlbox-tool-brush">
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<title><guilabel>Brush</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Brush</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-brush.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Brush</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Brush</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>There are three options available on this tab.
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</para><para>
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The <guilabel>Opacity</guilabel> slider and spin box are used to set the
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opacity when drawing (opacity is the opposite of transparency, i.e. 100%
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opaque is 0% transparent, and vice versa).
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</para><para>
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In the <guilabel>Mode</guilabel> drop down box, you can choose a drawing
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mode. This changes the actual effect that results from drawing on the image
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(for example, only changing the saturation or lightness).
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</para><para>
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With the <guilabel>Paint direct</guilabel> option, you can determine whether
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you want to paint directly on the current layer, or on a temporary layer which
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is then composited onto the actual layer. This makes a difference especially
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when using relative low opacity values.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-line">
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<title><guilabel>Line</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Line</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-line.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Line</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Line</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>See <link
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linkend="commands-palettes-controlbox-tool-brush">Brush</link>
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for the description of <guilabel>Opacity</guilabel> and
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<guilabel>Mode</guilabel>. The <guilabel>?</guilabel> button shows a tip about
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the usage of modifier keys.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-rectangle">
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<title><guilabel>Rectangle</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Rectangle</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-rectangle.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The Tool tab for <guilabel>Rectangle</guilabel></phrase>
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</textobject>
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<caption><para>The Tool tab for <guilabel>Rectangle</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>See <link
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linkend="commands-palettes-controlbox-tool-brush">Brush</link> for a description of <guilabel>Opacity</guilabel> and
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<guilabel>Mode</guilabel>.
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</para><para>
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The <guilabel>Fill</guilabel> drop down box is used to specify whether the
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inside of the rectangle should be filled. You can choose between three fill
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options: the current foreground color, background color or pattern is
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used.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-bezier">
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<title><guilabel>Bezier</guilabel></title>
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<para>See <link
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linkend="commands-palettes-controlbox-tool-brush">Brush</link> for the
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description of <guilabel>Mode</guilabel> and <guilabel>Opacity</guilabel>.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-ellipse">
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<title><guilabel>Ellipse</guilabel></title>
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<para>The same options as for <link
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linkend="commands-palettes-controlbox-tool-rectangle">Rectangle</link> are
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available here.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-polygon">
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<title><guilabel>Polygon</guilabel></title>
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<para>The same options as for <link
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linkend="commands-palettes-controlbox-tool-rectangle">Rectangle</link> are
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available here.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-polyline">
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<title><guilabel>Polyline</guilabel></title>
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<para>The same options as for <link
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linkend="commands-palettes-controlbox-tool-line">Line</link>
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are available here.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-star">
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<title><guilabel>Star</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Star</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-star.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Star</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Star</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>The options for <link
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linkend="commands-palettes-controlbox-tool-rectangle">Rectangle</link> are
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available here, as well as two options specific to this tool.
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</para><para>
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The <guilabel>Vertices</guilabel> drop down box is used to set the amount
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of vertices (points) in the star.
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</para><para>
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The <guilabel>Ratio</guilabel> setting defines the shape of the
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star. A ratio of 0% will create a star with no inner area (when drawing the
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star, the two lines that make up a star point, overlap). Increasing the ratio
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will slowly make the star more outlined (the two lines are <quote>pulled
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apart</quote>). A star with a ratio of 100% is a regular polygon.
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</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-duplicate">
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<title><guilabel>Duplicate</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Duplicate</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-duplicate.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Duplicate</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Duplicate</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>The same options as for <link
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linkend="commands-palettes-controlbox-tool-line">Line</link>
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are available here. In addition, there are three other options.
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</para><para>
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With the <guilabel>Healing</guilabel> and
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<guilabel>Healing radius</guilabel> options, you can specify that the
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duplication should not copy the colors, but only the <quote>structure</quote>
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of the source area.
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</para><para>
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If you enable the <guilabel>Correct the perspective</guilabel> option, the
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duplicate tool will follow your perspective grid.
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</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-paintwithfilters">
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<title><guilabel>Paint with Filters</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Paint with Filters</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-paintwithfilters.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Paint with Filters</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Paint with Filters</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>Depending on the filter, you can set different options here. The
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options you can set are the same as those available in the
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<quote>normal</quote> settings dialog for the chosen filter. See the
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<link linkend="commands-dialogs-filters">Filters section in the Dialogs
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chapter</link> for more information.</para> </sect4>
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<sect4 id="commands-palettes-controlbox-tool-transform">
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<title><guilabel>Transform</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Transform</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-transform.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Transform</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Transform</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<!-- >The <guilabel>Move X</guilabel> and <guilabel>Move Y</guilabel>
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spin boxes show, and can be used to set, the displacement of the layer or
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selection. The same applies to <guilabel>Scale X</guilabel> and <guilabel>Scale
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Y</guilabel> for the scaling of the current layer or selection. Finally, -->
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<para>You can choose which transformation algorithm to use in the
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<guilabel>Filter</guilabel> drop down box.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-crop">
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<title><guilabel>Crop</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Crop</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-crop.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Crop</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Crop</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>Set the corner coordinates of the area that should remain with the
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four spin boxes <guilabel>X</guilabel>, <guilabel>Y</guilabel>,
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<guilabel>Width</guilabel> and <guilabel>Height</guilabel>. You can also
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fill in <guilabel>Ratio</guilabel> to determine the Y/X ratio. Check one of
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the checkboxes to have the respective value remain constant while changing the
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size of the area. The drop down box can be used to select whether the entire
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image or only the current layer should be cropped. Clicking the
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<guibutton>Crop</guibutton> button has the same effect as double-clicking
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outside the area in the image.</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-contiguousfill">
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<title><guilabel>Contiguous Fill</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Contiguous Fill</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-contiguousfill.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Contiguous Fill</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Contiguous Fill</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>The same options as for <link
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linkend="commands-palettes-controlbox-tool-brush">Brush</link>
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are available here, as are a couple of other options.
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</para><para>
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The setting in the <guilabel>Threshold</guilabel> slider and spin box
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determines how near the color of a point should be to the color of the
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starting point of the fill, in order for the fill to spread out over the
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former point. A higher threshold will therefore fill areas that have less
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similar colors, a lower threshold limits the spread.
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</para><para>
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If you check the <guilabel>Fill entire selection</guilabel> checkbox, the
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entire selection will be filled instead of only the neighboring area.
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</para><para>
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Checking the <guilabel>Limit to current layer</guilabel> checkbox changes the
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behavior of the fill: the extent to which the fill is done, is determined from
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the current layer only instead of the entire image.
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</para><para>
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By checking the <guilabel>Use pattern</guilabel> checkbox you can choose to
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fill with the currently selected pattern instead of with the foreground color.
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</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-gradient">
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<title><guilabel>Gradient</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Gradient</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-gradient.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Gradient</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Gradient</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>The same options as for <link
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linkend="commands-palettes-controlbox-tool-brush">Brush</link>
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are available here, as are a couple of other options.
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</para><para>
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The <guilabel>Shape</guilabel> drop down box can be used to select the gradient
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type: <guilabel>Linear</guilabel>, <guilabel>Bi-Linear</guilabel>, <guilabel>Radial</guilabel>,
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<guilabel>Square</guilabel>, <guilabel>Conical</guilabel> and <guilabel>Conical Symmetric</guilabel>.
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</para><para>
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The <guilabel>Repeat</guilabel> option determines whether the gradient is
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repeated if it does not fill the entire image. With <guilabel>None</guilabel>, the colors on the
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ends of the gradient are used to fill the remaining space. With <guilabel>Forwards</guilabel>, the
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gradient is normally repeated (connecting the back end of one occurrence with
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the front end of the next). With <guilabel>Alternating</guilabel>, the gradient is repeated with
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every second occurrence being drawn from back to front (linking front to front
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and back to back).
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</para><para>
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Check the <guilabel>Reverse</guilabel> checkbox to have the gradient drawn
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reversed (from back to front).
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</para><para>
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The final setting is <guilabel>Anti-alias threshold</guilabel>, which
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determines how smooth the gradient will become.
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</para>
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</sect4>
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<sect4 id="commands-palettes-controlbox-tool-text">
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<title><guilabel>Text</guilabel></title>
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<para>
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<screenshot>
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<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Text</guilabel></screeninfo>
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<mediaobject>
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<imageobject>
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<imagedata fileref="palettes-controlbox-text.png" format="PNG" />
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</imageobject>
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<textobject>
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<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Text</guilabel></phrase>
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</textobject>
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<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Text</guilabel></para></caption>
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</mediaobject>
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</screenshot>
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</para>
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<para>The same options as for <link
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linkend="commands-palettes-controlbox-tool-brush">Brush</link>
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are available here. Furthermore there is an option <guilabel>Font</guilabel>,
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|
which shows the font that will be used for the text. Click the
|
|
<guibutton>...</guibutton> button to change the font.
|
|
</para>
|
|
</sect4>
|
|
|
|
<sect4 id="commands-palettes-controlbox-tool-colorpicker">
|
|
<title><guilabel>Color Picker</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Color Picker</guilabel></screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-controlbox-colorpicker.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Color Picker</guilabel></phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Color Picker</guilabel></para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>The first option is a dropdown box in which you can choose which
|
|
layer to pick the color from. If you choose a specific layer,
|
|
the color of the point in that layer will be retrieved. With <guilabel>Sample
|
|
All Visible Layers</guilabel>, the topmost visible layer which is not
|
|
transparent at that point is used.
|
|
</para><para>
|
|
If the <guilabel>Update current color</guilabel> checkbox is checked, then the
|
|
current foreground color (when clicking with the &LMB;) or background color
|
|
(when clicking with the &RMB;) is set to the picked color.
|
|
</para><para>
|
|
The checkbox <guilabel>Add to palette</guilabel> and the accompanying
|
|
dropdown box determine whether the picked color should be added to an existing
|
|
palette. Check the checkbox, and choose the desired palette from the list, if
|
|
you want to do so.
|
|
</para><para>
|
|
The checkbox <guilabel>Show colors as percentages</guilabel> switches the
|
|
range of color values displayed from the <quote>normal</quote> range (e.g. 0 to
|
|
255) to a scaled value between 0% and 100%.
|
|
</para><para>
|
|
With the <guilabel>Sample radius</guilabel> option, you can choose the area
|
|
size to use when picking the color. A radius of one just picks one pixel,
|
|
larger radii will make the picker average over the colors of the circle-shaped
|
|
area with the chosen radius that is centered around the chosen pixel.
|
|
</para>
|
|
</sect4>
|
|
|
|
<sect4 id="commands-palettes-controlbox-tool-select">
|
|
<title><guilabel>Select</guilabel> tools</title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Select</guilabel> tools</screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-controlbox-select.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Select</guilabel> tools</phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Select</guilabel> tools</para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>The <guilabel>Paint Selection</guilabel>, <guilabel>Erase Selection</guilabel>,
|
|
<guilabel>Select Rectangular</guilabel>, <guilabel>Select Elliptical</guilabel>, <guilabel>Select Polygonal</guilabel> and <guilabel>Select Outline</guilabel> tools have one option:
|
|
the <guilabel>Action</guilabel> to perform. You can choose between <guilabel>Add</guilabel> to, or
|
|
<guilabel>Subtract</guilabel> from the selection.</para>
|
|
</sect4>
|
|
|
|
<sect4 id="commands-palettes-controlbox-tool-selectcontiguous">
|
|
<title><guilabel>Select Contiguous Area</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Select Contiguous</guilabel></screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-controlbox-selectcontiguous.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Select Contiguous</guilabel></phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Select Contiguous</guilabel></para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>The <guilabel>Action</guilabel> is the same as discussed with the
|
|
<link linkend="commands-palettes-controlbox-tool-select">Select
|
|
operations</link>.
|
|
</para><para>
|
|
The slider and spin box at <guilabel>Fuzziness</guilabel> determine how near
|
|
colors must be to the color at the clicked point to be added to the selection.
|
|
</para><para>
|
|
When the <guilabel>Sample merged</guilabel> checkbox is checked, the
|
|
bounds of the selection are determined by looking at the entire image instead
|
|
of at the current layer.
|
|
</para>
|
|
</sect4>
|
|
|
|
<sect4 id="commands-palettes-controlbox-tool-selectsimilar">
|
|
<title><guilabel>Similar Select</guilabel></title>
|
|
<para>The <guilabel>Action</guilabel> and <guilabel>Fuzziness</guilabel>
|
|
options are the same as with <link
|
|
linkend="commands-palettes-controlbox-tool-selectcontiguous">Select
|
|
contiguous</link>. </para>
|
|
</sect4>
|
|
|
|
<sect4 id="commands-palettes-controlbox-tool-selectmagnetic">
|
|
<title><guilabel>Select Magnetic</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Tool</guilabel> tab for <guilabel>Select Magnetic</guilabel></screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-controlbox-selectmagnetic.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Tool</guilabel> tab for <guilabel>Select Magnetic</guilabel></phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Tool</guilabel> tab for <guilabel>Select Magnetic</guilabel></para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>The <guilabel>Action</guilabel> option is the same as with the other
|
|
<link linkend="commands-palettes-controlbox-tool-select">Select tools</link>.
|
|
</para>
|
|
<para>
|
|
The <guilabel>Distance</guilabel> option determines the maximal distance at
|
|
which boundaries to attach to, are searched for. The <guibutton>To
|
|
Selection</guibutton> button has the same effect as double-clicking the &LMB;:
|
|
the selection is finished.
|
|
</para>
|
|
</sect4>
|
|
|
|
</sect3>
|
|
|
|
</sect2>
|
|
|
|
<sect2 id="commands-palettes-colors">
|
|
<title>The <guilabel>Colors</guilabel> palette</title>
|
|
<para>In this palette you can choose the foreground and background colors
|
|
that should be used for painting. You can choose these in five different
|
|
ways. Each of these has its own tab on this palette.
|
|
</para><para>
|
|
You can choose which color to set by clicking the corresponding
|
|
buttons at the top left. The topmost color is the foreground color, the
|
|
bottom one is the background color. You can click the double-headed arrow
|
|
to swap the colors: foreground color becomes background color and vice
|
|
versa. You can reset the colors to the default (foreground black, background
|
|
white) by clicking the small black/white icon.
|
|
</para>
|
|
|
|
<sect3 id="commands-palettes-colors-hsv">
|
|
<title><guilabel>HSV</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>HSV</guilabel> tab</screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-colors-hsv.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>HSV</guilabel> tab</phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>HSV</guilabel> tab</para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>On this tab, you can select a color via the Hue / Saturation / Value
|
|
system.
|
|
</para><para>
|
|
The hue determines the major color and starts at red with 0, then increases
|
|
along the color spectrum (that is, along the <quote>line</quote> yellow, green,
|
|
blue, violet) to a maximum of 359. This is represented in the circle on the tab
|
|
as the angle component (starting at the top, rotate along the circle
|
|
in clockwise direction to increase the hue).
|
|
</para><para>
|
|
The saturation determines the pureness of the color. A saturation of 255
|
|
yields the pure color, while a saturation of 0 yields a gray. This is the
|
|
radius component of the color circle on the tab: the center corresponds to
|
|
no saturation, the circle boundary corresponds to fully saturated.
|
|
</para><para>
|
|
The value determines the lightness of the color. This darkens or lightens the
|
|
color, as can be set using the vertical slider on the tab. A value of 0 gives
|
|
black, a value of 255 gives the pure color.
|
|
</para>
|
|
</sect3>
|
|
|
|
<sect3 id="commands-palettes-colors-rgb">
|
|
<title><guilabel>RGB</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>RGB</guilabel> tab</screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-colors-rgb.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>RGB</guilabel> tab</phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>RGB</guilabel> tab</para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>On this tab, colors can be selected using their Red / Green / Blue
|
|
components.
|
|
</para><para>
|
|
You can set red, green and blue components on a scale of 0 to 255. At 0 that
|
|
color component is absent, at 255 it is used at maximum intensity. The sliders
|
|
will change color to give you a hint about which color you will produce by
|
|
altering the corresponding value.
|
|
</para>
|
|
</sect3>
|
|
|
|
<sect3 id="commands-palettes-colors-gray">
|
|
<title><guilabel>Gray</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Gray</guilabel> tab</screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-colors-gray.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Gray</guilabel> tab</phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Gray</guilabel> tab</para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>On this tab, you can choose a gray value (indicated with a K for Key,
|
|
the usual designation for black).</para>
|
|
<para>The gray value can be chosen on a scale from 0 (pure white) to 255
|
|
(pure black).</para>
|
|
</sect3>
|
|
|
|
<sect3 id="commands-palettes-colors-palettes">
|
|
<title><guilabel>Palettes</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Palettes</guilabel> tab</screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-colors-palettes.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Palettes</guilabel> tab</phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Palettes</guilabel> tab</para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>On this tab, you can select a color from one of several predefined
|
|
color palettes.</para>
|
|
<para>You can choose which color palette to pick from in the drop down
|
|
box at the top.</para>
|
|
</sect3>
|
|
|
|
<sect3 id="commands-palettes-colors-watercolors">
|
|
<title><guilabel>Watercolors</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Watercolors</guilabel> tab</screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-colors-watercolors.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Watercolors</guilabel> tab</phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Watercolors</guilabel> tab</para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>This tab offers you a selection of watercolors for painting with <quote>wet
|
|
paint</quote>.
|
|
</para><para>
|
|
You can set two options to modify the painting behaviour: <guilabel>Paint
|
|
strength</guilabel> influences how much paint you will apply to the canvas,
|
|
and <guilabel>Wetness</guilabel> determines how wet the paint is when it is
|
|
applied. You can dry the paint later.
|
|
</para>
|
|
</sect3>
|
|
|
|
</sect2>
|
|
|
|
<sect2 id="commands-palettes-layers">
|
|
<title>The <guilabel>Layers</guilabel> palette</title>
|
|
<para>This palette offers two tabs.</para>
|
|
|
|
<sect3 id="commands-palettes-layers-layers">
|
|
<title><guilabel>Layers</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Layers</guilabel> tab</screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-layers-layers.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Layers</guilabel> tab</phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Layers</guilabel> tab</para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>This tab offers you access to various operations on layers.
|
|
</para><para>
|
|
On the top left, you can select what blending mode should be used for the
|
|
selected layer. These are the same possibilities as you can choose from for
|
|
drawing modes.
|
|
</para><para>
|
|
The slider/textbox at the top right determines the opacity of the selected
|
|
layer. 0% opacity corresponds to 100% transparency, and vice versa.
|
|
</para><para>
|
|
The list shows all layers and their names, and offers various controls for each
|
|
layer. The eye icon toggles whether the layer is visible or not. The link icon
|
|
is used to link layers together. The lock icon determines if the layer is
|
|
locked or not. Locked layers cannot be edited.
|
|
</para><para>
|
|
Below the layer list, there are some other controls. You can create a new
|
|
layer, move the current layer up or down, show the layer's properties and
|
|
delete it.
|
|
</para>
|
|
<para>
|
|
There are some more handy tricks you can do with the mouse within the list.
|
|
Right-click on the layer list and select <guilabel>New Folder</guilabel> to
|
|
create a new layer folder, which you can use to group layers in. You can also
|
|
drag and drop layers to change their order. To do so, click on the bottom part
|
|
of the list item representing the layer, drag the mouse, and release the mouse
|
|
button at the desired position. If you click at the top part of the list item
|
|
instead, you will get a text field so that you can rename the layer.
|
|
</para>
|
|
</sect3>
|
|
|
|
<sect3 id="commands-palettes-layers-scriptsmanager">
|
|
<title><guilabel>Scripts Manager</guilabel></title>
|
|
<para>
|
|
<screenshot>
|
|
<screeninfo>The <guilabel>Script Manager</guilabel> tab</screeninfo>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata fileref="palettes-layers-scriptsmanager.png" format="PNG" />
|
|
</imageobject>
|
|
<textobject>
|
|
<phrase>The <guilabel>Script Manager</guilabel> tab</phrase>
|
|
</textobject>
|
|
<caption><para>The <guilabel>Script Manager</guilabel> tab</para></caption>
|
|
</mediaobject>
|
|
</screenshot>
|
|
</para>
|
|
<para>This tab is a smaller version of the <guilabel>Script
|
|
Manager</guilabel> dialog. See the description over there for more
|
|
information.
|
|
</para>
|
|
</sect3>
|
|
|
|
</sect2>
|
|
|
|
</sect1>
|