1<?xml version="1.0" encoding="UTF-8"?> 2<!DOCTYPE sect2 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" 3 "http://www.docbook.org/xml/4.3/docbookx.dtd"> 4<!-- section history: 5 2007-11-30 j.h: updated en;fr for v2.4. Moved from layer menu to image 6 menu 7 2007-06-18 Added Spanish translation by AntI 8 2007-03-12 Kolbjørn: added no translation 9 2006-07-31 scb: revised 'en' 10--> 11<sect2 id="plug-in-align-layers"> 12 <title>Align Visible Layers…</title> 13 14 <indexterm> 15 <primary>Layer</primary> 16 <secondary>Stack managing</secondary> 17 <tertiary>Align visible layers</tertiary> 18 </indexterm> 19 <indexterm> 20 <primary>Align visible layers</primary> 21 </indexterm> 22 23 <para> 24 With the <guimenuitem>Align Visible Layers</guimenuitem> command, 25 you can very precisely position the visible layers (those marked with 26 the <quote>eye</quote> icon). This degree of precision is especially 27 useful when you are working on animations, which typically have many 28 small layers. Clicking on <guimenuitem>Align Visible 29 Layers</guimenuitem> displays a dialog which allows you to choose 30 how the layers should be aligned. 31 </para> 32 <note> 33 <para> 34 In <application>GIMP 1.2</application>, the default base for the 35 alignment was the top visible layer in the stack. In 36 <application>GIMP 2</application>, the default alignment base is 37 the edge of the canvas. You can still align the image on the bottom 38 layer of the stack, even if it is invisible, by checking 39 <guilabel>Use the (invisible) bottom layer as the base</guilabel> 40 in the dialog. 41 </para> 42 </note> 43 <figure> 44 <title>Example image for layer alignment</title> 45 <mediaobject> 46 <imageobject> 47 <imagedata fileref="images/menus/image/align-demo.png" format="PNG"/> 48 </imageobject> 49 <caption> 50 <para> 51 The example image contains four layers on a large (150x150 pixel) 52 canvas. The red square is 10x10 pixels, the green rectangle is 53 10x20 pixels and the yellow rectangle is 20x10 pixels. The 54 background layer (blue, 100x100 pixels) will not be affected by 55 the command, since the <guilabel>Ignore lower layer</guilabel> 56 option has been checked on the dialog. Note that the layers in the 57 image seem to have a different order than their actual order in 58 the stack because of their positions on the canvas. The yellow 59 layer is the top layer in the image and the second one in the 60 stack. 61 </para> 62 </caption> 63 </mediaobject> 64 </figure> 65 66 <sect3> 67 <title>Activate the Command</title> 68 <itemizedlist> 69 <listitem> 70 <para> 71 You can access this command from the image menubar through 72 <menuchoice> 73 <guimenu>Image</guimenu> 74 <guimenuitem>Align Visible layers…</guimenuitem> 75 </menuchoice>. 76 There is no default keyboard shortcut. If the image holds a single 77 layer only, you get a message from GIMP telling that there must be 78 more than one layer in the image to execute the command. 79 </para> 80 </listitem> 81 </itemizedlist> 82 <figure> 83 <title>The <quote>Not enough layers</quote> message</title> 84 <mediaobject> 85 <imageobject> 86 <imagedata format="PNG" 87 fileref="images/menus/image/align-no-layer.png"/> 88 </imageobject> 89 </mediaobject> 90 </figure> 91 </sect3> 92 93 <sect3> 94 <title> 95 Description of the <quote>Align Visible Layers</quote> dialog 96 </title> 97 <figure> 98 <title>The <quote>Align Visible Layers</quote> dialog</title> 99 <mediaobject> 100 <imageobject> 101 <imagedata format="PNG" 102 fileref="images/menus/image/align-layers.png"/> 103 </imageobject> 104 </mediaobject> 105 </figure> 106 <variablelist> 107 <varlistentry> 108 <term>Horizontal Style; Vertical Style</term> 109 <listitem> 110 <para> 111 These options control how the layers should be moved in 112 relationship to each other. You can choose: 113 </para> 114 <itemizedlist> 115 <listitem> 116 <para> 117 <guilabel>None</guilabel>: 118 There will be no change in the horizontal or the vertical 119 position, respectively. 120 </para> 121 </listitem> 122 <listitem> 123 <para> 124 <guilabel>Collect</guilabel>: 125 The visible layers will be aligned on the canvas, in the 126 way that is determined by the <guilabel>Horizontal 127 base</guilabel> and <guilabel>Vertical base</guilabel> 128 options. If you select a <guilabel>Horizontal 129 base</guilabel> of <guilabel>Right edge</guilabel>, layers 130 may disappear from the canvas. You can recover them by 131 enlarging the canvas. If you check the 132 <guilabel>Use the (invisible) bottom layer as the 133 base</guilabel> option, the layers will be aligned on the 134 top left corner of the bottom layer. 135 </para> 136 <figure> 137 <title> 138 Horizontal <quote>Collect</quote> alignment (on the edge of 139 the canvas) 140 </title> 141 <mediaobject> 142 <imageobject> 143 <imagedata format="PNG" 144 fileref="images/menus/image/align-demo.png"/> 145 </imageobject> 146 <caption> 147 <para>Original image with the layer stack</para> 148 </caption> 149 </mediaobject> 150 <mediaobject> 151 <imageobject> 152 <imagedata format="PNG" 153 fileref="images/menus/image/alignHCLB-.png"/> 154 </imageobject> 155 <caption> 156 <para> 157 The layers have been moved horizontally so that their 158 left edges are aligned with the left edge of the 159 canvas. 160 </para> 161 </caption> 162 </mediaobject> 163 </figure> 164 <figure> 165 <title> 166 Horizontal <quote>Collect</quote> alignment (on the bottom 167 layer) 168 </title> 169 <mediaobject> 170 <imageobject> 171 <imagedata format="PNG" 172 fileref="images/menus/image/align-demo.png"/> 173 </imageobject> 174 <caption> 175 <para>Original image with the layer stack 176 </para> 177 </caption> 178 </mediaobject> 179 <mediaobject> 180 <imageobject> 181 <imagedata format="PNG" 182 fileref="images/menus/image/alignHCLB+.png"/> 183 </imageobject> 184 <caption> 185 <para> 186 The layers have been moved horizontally so that their 187 left edges align with the left edge of the bottom 188 layer. 189 </para> 190 </caption> 191 </mediaobject> 192 </figure> 193 </listitem> 194 <listitem> 195 <para> 196 <guilabel>Fill (left to right)</guilabel>; 197 <guilabel>Fill (top to bottom)</guilabel>: 198 The visible layers will be aligned with the canvas 199 according to the edge you selected with 200 <guilabel>Horizontal base</guilabel> or 201 <guilabel>Vertical base</guilabel>, respectively. 202 The layers are arranged regularly, so that they do not 203 overlap each other. The top layer in the stack is placed 204 on the leftmost (or uppermost) position in the image. 205 The bottom layer in the stack is placed on the rightmost 206 (or bottommost) position of the image. The other layers 207 are placed regularly between these two positions. If the 208 <guilabel>Use the (invisible) bottom layer as the 209 base</guilabel> option is checked, the layers are aligned 210 with the corresponding edge of the bottom layer. 211 </para> 212 <figure> 213 <title> 214 Horizontal <quote>Fill</quote> alignment (canvas) 215 </title> 216 <mediaobject> 217 <imageobject> 218 <imagedata format="PNG" 219 fileref="images/menus/image/align-demo.png"/> 220 </imageobject> 221 <caption> 222 <para>Original image with the layer stack 223 </para> 224 </caption> 225 </mediaobject> 226 <mediaobject> 227 <imageobject> 228 <imagedata format="PNG" 229 fileref="images/menus/image/alignHFLB-.png"/> 230 </imageobject> 231 <caption> 232 <para> 233 Horizontal filling alignment, Left to Right, with 234 <guilabel>Use the (invisible) bottom layer as the 235 base</guilabel> option not checked. The top layer 236 in the stack, the green one, is placed all the way 237 on the left. The bottom layer in the stack, the red 238 one, is placed is on the right and the yellow layer 239 is between the other two. 240 </para> 241 </caption> 242 </mediaobject> 243 </figure> 244 <figure> 245 <title> 246 Horizontal <quote>Fill</quote> alignment (bottom layer) 247 </title> 248 <mediaobject> 249 <imageobject> 250 <imagedata format="PNG" 251 fileref="images/menus/image/align-demo.png"/> 252 </imageobject> 253 <caption> 254 <para>Original image with the layer stack</para> 255 </caption> 256 </mediaobject> 257 <mediaobject> 258 <imageobject> 259 <imagedata format="PNG" 260 fileref="images/menus/image/alignHFLB+.png"/> 261 </imageobject> 262 <caption> 263 <para> 264 The same parameters as in the previous example, 265 but with the lowest (blue) level as the base. 266 </para> 267 </caption> 268 </mediaobject> 269 </figure> 270 </listitem> 271 <listitem> 272 <para> 273 <guilabel>Fill (right to left)</guilabel>; 274 <guilabel>Fill (bottom to top)</guilabel>: 275 These settings work similarly to the ones described above, 276 but the filling occurs in the opposite direction. 277 </para> 278 <figure> 279 <title> 280 Vertical <quote>Fill</quote> alignment (bottom layer) 281 </title> 282 <mediaobject> 283 <imageobject> 284 <imagedata format="PNG" 285 fileref="images/menus/image/align-demo.png"/> 286 </imageobject> 287 <caption> 288 <para>Original image with the layer stack</para> 289 </caption> 290 </mediaobject> 291 <mediaobject> 292 <imageobject> 293 <imagedata format="PNG" 294 fileref="images/menus/image/alignVFBB+.png"/> 295 </imageobject> 296 <caption> 297 <para> 298 Vertical <quote>Fill</quote> alignment, bottom to 299 top, bottom layer as base 300 </para> 301 </caption> 302 </mediaobject> 303 </figure> 304 <para> 305 There must be at least three visible layers in the image to 306 use the <quote>Fill</quote> options. 307 </para> 308 </listitem> 309 </itemizedlist> 310 </listitem> 311 </varlistentry> 312 </variablelist> 313 </sect3> 314</sect2> 315
