1<?xml version="1.0" encoding="UTF-8"?> 2 3 4<!-- 5 *********************************************************************** 6 * 7 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 8 * 9 * Copyright 2000, 2010 Oracle and/or its affiliates. 10 * 11 * OpenOffice.org - a multi-platform office productivity suite 12 * 13 * This file is part of OpenOffice.org. 14 * 15 * OpenOffice.org is free software: you can redistribute it and/or modify 16 * it under the terms of the GNU Lesser General Public License version 3 17 * only, as published by the Free Software Foundation. 18 * 19 * OpenOffice.org is distributed in the hope that it will be useful, 20 * but WITHOUT ANY WARRANTY; without even the implied warranty of 21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 * GNU Lesser General Public License version 3 for more details 23 * (a copy is included in the LICENSE file that accompanied this code). 24 * 25 * You should have received a copy of the GNU Lesser General Public License 26 * version 3 along with OpenOffice.org. If not, see 27 * <http://www.openoffice.org/license.html> 28 * for a copy of the LGPLv3 License. 29 * 30 ************************************************************************ 31 --> 32 33<helpdocument version="1.0"> 34<meta> 35<topic id="textsimpressguideline_drawxml" indexer="include" status="PUBLISH"> 36<title id="tit" xml-lang="en-US">Drawing Curves</title> 37<filename>/text/simpress/guide/line_draw.xhp</filename> 38</topic> 39<history> 40<created date="2003-10-31T00:00:00">Sun Microsystems, Inc.</created> 41<lastedited date="2006-10-23T14:01:00">FPE: Deleted Screenshot. Cleaned.</lastedited> 42</history> 43</meta> 44<body> 45<bookmark xml-lang="en-US" branch="index" id="bm_id3149377"><bookmark_value>lines; drawing</bookmark_value> 46<bookmark_value>curves; drawing</bookmark_value> 47<bookmark_value>control points definition</bookmark_value> 48<bookmark_value>corner points</bookmark_value> 49<bookmark_value>drawing;lines</bookmark_value> 50</bookmark> 51<paragraph role="heading" id="hd_id3149377" xml-lang="en-US" level="1" l10n="U" oldref="3"><variable id="line_draw"><link href="text/simpress/guide/line_draw.xhp" name="Drawing Curves">Drawing Curves</link> 52</variable></paragraph> 53<paragraph role="paragraph" id="par_id3148868" xml-lang="en-US" l10n="CHG" oldref="4">The <emph>Curve</emph> icon 54<image id="img_id3150205" src="res/commandimagelist/sc_linetoolbox.png" width="0.222inch" height="0.222inch"><alt id="alt_id3150205" xml-lang="en-US">Icon</alt> 55 </image> on the <emph>Drawing</emph> toolbar opens a toolbar to draw Bézier curves. Bézier curves are defined by a start point and an end point, which are called "anchors". The curvature of the Bézier curve is defined by control points ("handles"). Moving a control point changes the shape of the Bézier curve.</paragraph> 56<paragraph role="note" id="par_id8532364" xml-lang="en-US" l10n="NEW">Control points are only visible in "Edit Points" mode. Control points are represented by circles, anchor points are represented by squares. The start point is a little bit larger than the other anchor points.</paragraph> 57<paragraph role="paragraph" id="par_id3150210" xml-lang="en-US" l10n="CHG" oldref="39">Bézier curve segments and straight line segments can be joined to form more complex Bézier curves. Three different transitions can be applied to join adjacent segments:</paragraph> 58<list type="unordered"> 59<listitem> 60<paragraph role="listitem" id="par_id3154766" xml-lang="en-US" l10n="CHG" oldref="25">A <emph>symmetrical</emph> anchor point has the same line curvature on either side, and two control lines that move together as a straight line.</paragraph> 61</listitem> 62<listitem> 63<paragraph role="listitem" id="par_id3149874" xml-lang="en-US" l10n="CHG" oldref="26">A <emph>smooth</emph> anchor point may have different line curvatures on either side.</paragraph> 64</listitem> 65<listitem> 66<paragraph role="listitem" id="par_id3150435" xml-lang="en-US" l10n="CHG" oldref="27">A <emph>corner</emph> anchor point has one or two independent control lines. Changing one side has no effect on the other side.</paragraph> 67</listitem> 68</list> 69<paragraph role="heading" id="hd_id46388" xml-lang="en-US" level="2" l10n="NEW">How to use the Curve tool</paragraph> 70<list type="ordered"> 71<listitem> 72<paragraph role="paragraph" id="par_id3155262" xml-lang="en-US" l10n="CHG" oldref="5">On the Drawing toolbar, open the <emph>Curves</emph> toolbar 73<image id="img_id3145829" src="res/commandimagelist/sc_linetoolbox.png" width="0.222inch" height="0.222inch"><alt id="alt_id3145829" xml-lang="en-US">Icon</alt> 74 </image> and select the <emph>Curve</emph> 75<image id="Graphic1" src="res/commandimagelist/sc_bezier_unfilled.png" width="0.222inch" height="0.222inch"><alt id="alt_" xml-lang="en-US">Icon</alt> 76 </image> tool.</paragraph> 77</listitem> 78<listitem> 79<paragraph role="paragraph" id="par_id3155928" xml-lang="en-US" l10n="CHG" oldref="6">Click where you want the curve to start, and drag in the direction where you want the curve to go. The control line will indicate the direction. </paragraph> 80<paragraph role="paragraph" id="par_id8174687" xml-lang="en-US" l10n="NEW">Hold down <item type="keycode">Shift</item> while you drag to restrict the direction to a 45 degree grid.</paragraph> 81</listitem> 82<listitem> 83<paragraph role="paragraph" id="par_id3148390" xml-lang="en-US" l10n="CHG" oldref="41">Release the mouse where the first control point should be.</paragraph> 84</listitem> 85<listitem> 86<paragraph role="paragraph" id="par_id3154865" xml-lang="en-US" l10n="U" oldref="22">Move the pointer to where you want the curve segment to end. The curve follows the pointer. </paragraph> 87</listitem> 88<listitem> 89<paragraph role="paragraph" id="par_id1556443" xml-lang="en-US" l10n="NEW">Do one of the following:</paragraph> 90</listitem> 91</list> 92<list type="unordered"> 93<listitem> 94<paragraph role="paragraph" id="par_id3151172" xml-lang="en-US" l10n="CHG" oldref="9">Double-click on the position of the end point to finish drawing the line. </paragraph> 95<paragraph role="paragraph" id="par_id5377056" xml-lang="en-US" l10n="NEW">To create a closed shape, double-click the starting point of the line.</paragraph> 96</listitem> 97<listitem> 98<paragraph role="paragraph" id="par_id3153919" xml-lang="en-US" l10n="CHG" oldref="23">Click and release the mouse button to add an anchor point. Move the mouse to draw the next segment.</paragraph> 99</listitem> 100<listitem> 101<paragraph role="paragraph" id="par_id3149451" xml-lang="en-US" l10n="CHG" oldref="43">Click and drag in any direction to add a smooth anchor point.</paragraph> 102</listitem> 103</list> 104<paragraph role="heading" id="hd_id2071596" xml-lang="en-US" level="2" l10n="NEW">How to use the Freeform Line tool</paragraph> 105<list type="ordered"> 106<listitem> 107<paragraph role="paragraph" id="par_id4907681" xml-lang="en-US" l10n="NEW">On the Drawing toolbar, open the <emph>Curves</emph> toolbar 108<image id="Graphic2" src="res/commandimagelist/sc_linetoolbox.png" width="0.222inch" height="0.222inch"><alt id="alt_" xml-lang="en-US">Icon</alt> 109 </image> and select the <emph>Freeform Line</emph> 110<image id="Graphic3" src="res/commandimagelist/sc_freeline_unfilled.png" width="0.222inch" height="0.222inch"><alt id="alt_" xml-lang="en-US">Icon</alt> 111 </image> tool.</paragraph> 112</listitem> 113<listitem> 114<paragraph role="paragraph" id="par_id1122165" xml-lang="en-US" l10n="NEW">Click where you want the curve to start, and keep holding the mouse button down.</paragraph> 115</listitem> 116<listitem> 117<paragraph role="paragraph" id="par_id5792107" xml-lang="en-US" l10n="NEW">Draw the freeform line as you would do with a pencil.</paragraph> 118</listitem> 119<listitem> 120<paragraph role="paragraph" id="par_id7734916" xml-lang="en-US" l10n="NEW">Release the mouse button to finish the line.</paragraph> 121</listitem> 122</list> 123<section id="relatedtopics"> 124<embed href="text/simpress/guide/line_edit.xhp#line_edit"/> 125<embed href="text/simpress/guide/vectorize.xhp#vectorize"/> 126<embed href="text/simpress/guide/3d_create.xhp#3d_create"/> 127<embed href="text/simpress/guide/text2curve.xhp#text2curve"/> 128</section> 129</body> 130</helpdocument> 131
