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239 lines
16 KiB
239 lines
16 KiB
<sect1 id="graphics">
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<sect1info>
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<authorgroup>
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<author>
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<firstname>Mike</firstname>
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<surname>McBride</surname>
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</author>
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<!-- TRANS:ROLES_OF_TRANSLATORS -->
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</authorgroup>
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</sect1info>
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<title>Graphics</title>
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<indexterm><primary>graphics</primary><secondary>introduction</secondary></indexterm>
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<para>&kword; is very good at handling textual information. &kword; can also be used to incorporate
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graphical images with text. </para>
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<tip><para>A source of great clipart that is free to use is the <ulink url="http://www.openclipart.org">Open Clip Art Library</ulink>. This project has a large collection of vector graphics indexed and sorted by category, all released into the public domain.</para></tip>
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<para>Pictures can be inserted into a document as either <emphasis>framed</emphasis> or <emphasis>inline</emphasis> images.</para>
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<para>Framed images are pictures that have a frame around them. The frame around a picture functions
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exactly the same as a frame around text. It contains the picture and determines the size and shape of the picture.</para>
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<para>An inline image has a frame around it, but this frame is inserted <emphasis>within</emphasis> the current text
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frame. If text is inserted in front of the picture, the picture travels down the frame just like any text would. This means the picture will
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stay in the same area of the page as the text that surrounds it.</para>
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<para>Framed pictures, on the other hand, need to be moved by hand on the page. </para>
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<para>&kword; can use pictures <link linkend="insert-graphics">already stored in a file</link> or <link linkend="scan-graphics"> acquire an image from a scanner</link>.</para>
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<sect2 id="insert-graphics"><title>Insert Graphics from a file</title>
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<indexterm><primary>graphics</primary><secondary>inserting</secondary></indexterm>
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<para>There are three ways to insert a picture into a document:</para>
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<itemizedlist>
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<listitem>
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<para>By selecting <menuchoice>
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<guimenu>Insert</guimenu><guimenuitem>Picture...</guimenuitem></menuchoice> from
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the menubar</para>
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</listitem>
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<listitem>
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<para>Using the keyboard shortcut: <keycombo action="simul">&Shift;<keycap>F5</keycap></keycombo></para>
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</listitem>
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<listitem>
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<para>or by clicking <inlinemediaobject><imageobject><imagedata
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fileref="fpicture.png"
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format="PNG"/></imageobject></inlinemediaobject> on the toolbar.</para>
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</listitem>
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</itemizedlist>
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<para>All three methods open a file selection dialog.</para>
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<screenshot>
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<mediaobject>
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<imageobject>
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<imagedata fileref="insgrph1.png" format="PNG"/></imageobject>
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</mediaobject>
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</screenshot>
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<para><link linkend="file-dialog">Use this dialog</link> to select the picture.</para>
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<tip><para>Pressing <keycap>Esc</keycap> at this point will cancel the insertion of a picture into your document.</para></tip>
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<para>Once the appropriate picture file is located, click on the filename once with the &LMB;. Click
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<guibutton>OK</guibutton> to continue.</para>
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<para>A new dialog box appears.</para>
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<screenshot>
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<mediaobject>
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<imageobject>
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<imagedata fileref="insgrph2.png" format="PNG"/></imageobject>
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</mediaobject>
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</screenshot>
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<para>The right half of this dialog box contains a preview window. The picture should be visible in this window.</para>
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<para>The left part of this box contains one button and two check boxes.</para>
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<variablelist>
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<varlistentry>
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<term><guibutton>Choose Picture...</guibutton></term>
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<listitem><para>Click this button and &kword; will open a
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new file dialog to choose a different picture.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Insert Picture Inline</guilabel></term>
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<listitem><para>If there is a mark in this check box, the picture will be an inline picture. If there is no mark, a new frame will be
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created. For details on the differences, see the <link linkend="graphics">introduction</link>.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term><guilabel>Retain original aspect ratio</guilabel></term>
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<listitem><para><glossterm linkend="defaspectratio">Aspect ratio</glossterm> is defined in the &kword; glossary.</para>
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<para>If a there is a mark in this check box, &kword; will not allow any change the aspect ratio of the picture. This prevents
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inappropriate stretching and compressing of the image. It will still be possible to change the overall size of the image, but it
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will not be possible to change the horizontal measurement without also changing the vertical measurement.</para>
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<para>If there is no mark in this check box, the horizontal and vertical sizes of the picture can be changed independently.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>To insert the picture, click <guibutton>OK</guibutton>. To abort the picture entirely, click <guibutton>Cancel</guibutton>.</para>
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<para>If an inline picture was selected, click with the mouse in the appropriate location. The picture will be inserted.</para>
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<para>If a framed picture was selected, the mouse cursor will change to crosshairs. Locate one corner of the location of the new picture
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frame with the mouse. Click and hold the &LMB; down. Drag the cursor to adjust the size of the picture frame. When the size of the
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picture frame is correct, release the &LMB;. &kword; will insert the picture into the frame, and resize the picture to fit within the
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frame.</para>
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</sect2>
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<sect2 id="scan-graphics"><title>Using a picture from a scanner</title>
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<note><para>A complete discussion of how to operate a scanner is beyond the scope of this documentation. This document will confine itself to the controls available in &kword; but will not
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go into detail on the use of these controls.</para></note>
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<para>To use a scanner to insert a picture into your kword document, begin by selecting <menuchoice>
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<guimenu>Insert</guimenu><guimenuitem>Scan Image...</guimenuitem></menuchoice> from
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the menubar.</para>
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<para> &kword; will open a dialog box for you to choose your scanner. Simply click on the radio button to the left of your scanner. Then click <guibutton>OK</guibutton>. This will bring up the scanning dialog:</para>
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<screenshot>
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<mediaobject>
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<imageobject>
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<imagedata fileref="scan.png" format="PNG"/></imageobject>
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</mediaobject>
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</screenshot>
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<para>You should begin by selecting the image type that you want to scan and the resolution. First determine the picture type using the drop down box labeled
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<guilabel>Scan Mode</guilabel>. You can choose between <guilabel>Color</guilabel>, <guilabel>Greyscale</guilabel> or <guilabel>Binary</guilabel> image.</para>
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<para>If you want to select a different scanner, click the <guibutton>Source...</guibutton> button.</para>
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<para>If you have selected a <guilabel>Binary</guilabel> image, you can use the drop down box labeled <guilabel>Halftoning</guilabel> to select your halftone protocol.</para>
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<para>Select your resolution using the drop down box labeled <guilabel>Resolution</guilabel></para>
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<para>Now place the object you want to scan in the scanner and click <guibutton>Preview Scan</guibutton>. Your scanner will take a low resolution
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scan and preview it in the window in the far right of the dialog</para>
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<para>Using your mouse, click on the upper left corner of he area you want to scan with the &LMB; and hold the button down. Drag the mouse down and
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to the right to create a box for a high-resolution scan. When you have an appropriate sized box, release the &LMB;. Once the box is drawn, you
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can adjust the selection box using the mouse. </para>
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<para>You can refer to the box to the left of the preview window labeled <guilabel>Selection</guilabel>. This box will show you the height and
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width of your selection and the amount of disk space you will need to store this image in the &kword; file. </para>
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<para>Once you are satisfied with the size and position of the selection box, click <guibutton>Final Scan</guibutton>. The scanner will scan the selected area at the resolution you selected. </para>
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<para>When the scanner is finished, click <guibutton>Close</guibutton> to close the dialog box. Your cursor will now be crosshairs. Using this cursor, draw the size and position you want your picture on the
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page. The scanned image will be inserted in a separate frame. You can now adjust the size of the picture by <link linkend="resize-frame">changing the size of the frame</link></para>
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<sect3 id="scan-adjust"><title>Adjusting the image prior to final scanning</title>
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<para>You can use the lower left part of this dialog to adjust your image prior to scanning. </para>
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<para>By moving the slider bar labeled <guilabel>Threshold</guilabel> you can adjust the cutoff point of white in the scanned image. </para>
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<para>By moving the slider bars labeled <guilabel>Brightness</guilabel> and <guilabel>Sharpness</guilabel> you can adjust the relative brightness and the sharpness of the scanned image.</para>
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<note><para>The preview window will not show you the effects of changes to your scanned image in the preview window.</para></note>
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<para>You can select from one of three pre-defined gamma tables or you can select the <guilabel>User defined</guilabel> option from the drop
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down box labeled <guilabel>Use custom gamma table</guilabel>. If you selected <guilabel>User defined</guilabel> you can click the <guibutton>Edit...</guibutton>
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to alter the <guilabel>Brightness</guilabel>, <guilabel>Contrast</guilabel> and <guilabel>Gamma</guilabel> for your customized gamma table. </para>
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</sect3>
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<sect3 id="scan-preview"><title>Adjusting the preview scan size</title>
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<para>If you know the size of the object you are scanning, you can select the preview area from the drop-down box labeled <guilabel>Scan size</guilabel>. You can also use the radio buttons
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labeled <guibutton>Landscape</guibutton> and <guibutton>Portrait</guibutton> to change the orientation of the preview area.</para>
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<note><para>Changing the orientation between portrait and landscape does not change the orientation of the scanned text or image.</para></note>
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</sect3>
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<sect3 id="scan-autosel"><title>Using auto-selection</title>
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<para>&kword; can try to automatically select the object you want to scan. It does this by looking for an area within the preview window that seems to
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define an object in the picture. By default this option is disabled. You can enable autoselection in this dialog.</para>
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<para>The autoselection area of the dialog is located just to the left of the preview window in the middle of the dialog box. It consists of three controls:</para>
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<variablelist>
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<varlistentry>
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<term>Checkbox</term>
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<listitem><para>If a mark is placed in the checkbox, auto-selection is enabled.
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If there is no mark in the checkbox, then auto-selection is disabled.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>Drop down box</term>
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<listitem><para>This drop down box contains two possible choices: <guilabel>Black</guilabel> and <guilabel>White</guilabel>. If
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<guilabel>Black</guilabel> is chosen, then &kword; will look for an area surrounded by black to select automatically.
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If <guilabel>White</guilabel> is chosen, then &kword; will look for an area surrounded by white to select automatically.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>Slider bar labeled <guilabel>Threshold</guilabel></term>
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<listitem><para>By adjusting this slider bar, you determine the threshold auto-selection uses to determine the area to select automatically.</para></listitem>
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</varlistentry>
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</variablelist>
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</sect3>
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<sect3 id="scan-misc"><title>Miscellaneous scanning options</title>
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<para>There are two additional options for scanning that are accessed by clicking on the <guilabel>Options</guilabel> tab.</para><screenshot>
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<mediaobject>
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<imageobject>
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<imagedata fileref="scan2.png" format="PNG"/></imageobject>
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</mediaobject>
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</screenshot>
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<para>The checkbox labeled <guilabel>Ask for the scan device on plugin startup</guilabel> toggles the scanner selection dialog on and off. If there is a mark in this
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checkbox, &kword; will ask you to select your scanner each time you insert a scanned image into your document. If there is no mark, then &kword; uses the previously
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selected scanner. If you have access to only one scanner, or you only use one scanner, you should remove any mark from this box.</para>
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<para>The checbox labled <guilabel>Query the network for scan devices</guilabel> is also used to select scanners. If there is a mark in this checkbox,
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&kword; will check your local network for scanners that are avaialbe. If there is no mark in this box, &kword; will only look for scanners connected directly to
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your machine.</para>
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<para>To save these options, click <guibutton>Close</guibutton>.</para>
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</sect3>
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</sect2>
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<sect2 id="resize-Graphics"><title>Changing the size of a picture</title>
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<indexterm><primary>graphics</primary><secondary>change the size of</secondary></indexterm>
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<para>Resizing a picture is done by changing the size of the frame that surrounds it. &kword; will automatically change the picture to fill the
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entire frame.</para>
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<para>For information on changing the size of a frame, see <link linkend="resize-frame">Resizing frames</link>. </para>
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</sect2>
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<sect2 id="move-graphics"><title>Move Pictures</title>
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<indexterm><primary>graphics</primary><secondary>moving</secondary></indexterm>
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<para>The only way to move an inline image around on the page, is to alter the flow of the text that surrounds it. If this
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is causing problems, the picture can always be <link linkend="switch-graphics">changed to a framed picture</link>.</para>
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<para>To move a framed picture in &kword; is the same as <link linkend="move-frame">moving any frame</link> in &kword;.</para>
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</sect2>
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<sect2 id="delete-graphics"><title>Delete Graphics</title>
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<indexterm><primary>graphics</primary><secondary>deleting</secondary></indexterm>
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<para>To delete a graphic in &kword;, simply <link linkend="delete-frame">delete the frame</link> around it.</para>
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</sect2>
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<sect2 id="save-graphics"><title>Saving Graphic in separate file</title>
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<indexterm><primary>graphics</primary><secondary>saving in a separate file</secondary></indexterm>
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<para>You can save a picture or graph to a separate file (for use in another document or to archive the graphic).</para>
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<para>Simply click once on the graphic with the &RMB;. A popup menu will appear. Select <guilabel>Save Picture...</guilabel>.
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A dialog will appear that will allow you to specify where to save the graphic.</para>
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<note><para>This does not remove the picture from the &kword; document file. It is simply a way to extract a picture from a
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document so it can be archived or used in another application.</para></note>
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</sect2>
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<sect2 id="switch-graphics"><title>Switching between inline and framed pictures</title>
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<indexterm><primary>graphics</primary><secondary>switching between inline and framed</secondary></indexterm>
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<para>Switching between inline pictures and framed pictures is easy in &kword;.</para>
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<sect3 id="inline-to-frame"><title>Change an inline picture to a framed picture</title>
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<para>To change in inline picture to a framed picture, click on the desired picture with the &LMB; once. This selects the frame
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of the picture.</para>
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<para>Now click and hold with the &RMB; and a popup menu will appear. In this menu, is an item labeled
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<guilabel>Inline Frame</guilabel>, with a mark in front of it. Select this option by clicking with the &LMB;.</para>
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<para>The frame is now
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an independent and can be moved around freely.</para>
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</sect3>
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<sect3 id="frame-to-inline"><title>Change a framed picture to an inline picture</title>
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<para>To change a framed picture into an inline picture, click on the desired picture with the &LMB; once. This selects the frame
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of the picture.</para>
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<para>Now click and hold with the &RMB; and a popup menu will appear. In this menu, is an item labeled
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<guilabel>Inline Frame</guilabel>. Select this option by clicking with the &LMB;.</para>
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<para>&kword; has now converted this to an inline frame.</para>
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<note><para>&kword; tries to make a reasonable estimation of where in the text the inline image should be inserted.</para>
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</note>
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</sect3>
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</sect2>
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</sect1>
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