编辑“︁Template:Overlay/doc”︁（章节）

==使用方法==

This is a colour/color friendly template.  Either spelling can be used for any parameter value or any parameter name.

===Skeleton===
<pre>
{{overlay
| image        = 
| width        = 
| height       = 
| columns      = 
| grid         = 
| link         = 
| legendbox    = 
| float        = 
| overlay      = 
| border       = 
| legend1title = 
| legend1start = 
| legend1end   = 
  (...up to 6...)
| overlay1form = 
| overlay1     = 
| overlay1colour = 
| overlay1tip  = 
| overlay1left = 
| overlay1top  = 
| overlay1link = 
  (...up to 30...)
}}
</pre>

===Editing grid and coordinates===
To assist in determining the position of each overlay a coordinate grid showing from the left ordinates and from the top ordinates can be displayed by setting the grid parameter to yes:

 | grid         = yes

The coordinate grid is 900 x 900, so if the image is set to be smaller than this, the page content may be off scrolled, etc.  The presentation will return to normal when the grid parameter is removed or set to a value other than yes.

Note that the top ordinate is the position of the top of the overlay from the top of the image and the left ordinate is the left of the overlay from the left of the image.

===Form = colour===
When setting

 | overlayNform = colour

the the overlays still use up numbered positions within the list of overlays.  Accordingly, if using a mixture of image and-or text forms with colour forms, then gaps will appear in the number sequence where a colour form overlay is specified.

It might be generally best if colour form overlays are always set as the last overlays.  See [[#Spider's main organs (pre labelled image)|Spider's main organs]] below for example.

===Full minimal skeleton===
To assist editors, a full 30 overlays but minimal skeleton is provided below:
{| class="collapsible collapsed" style="width:100%"
!Full minimal skeleton
|-
|<pre>{{overlay
|image = 
|width = 
|height = 
|grid = 
|overlay1 = 
|overlay1top = 
|overlay1left = 
|overlay2 = 
|overlay2top = 
|overlay2left = 
|overlay3 = 
|overlay3top = 
|overlay3left = 
|overlay4 = 
|overlay4top = 
|overlay4left = 
|overlay5 = 
|overlay5top = 
|overlay5left = 
|overlay6 = 
|overlay6top = 
|overlay6left = 
|overlay7 = 
|overlay7top = 
|overlay7left = 
|overlay8 = 
|overlay8top = 
|overlay8left = 
|overlay9 = 
|overlay9top = 
|overlay9left = 
|overlay10 = 
|overlay10top = 
|overlay10left = 
|overlay11 = 
|overlay11top = 
|overlay11left = 
|overlay12 = 
|overlay12top = 
|overlay12left = 
|overlay13 = 
|overlay13top = 
|overlay13left = 
|overlay14 = 
|overlay14top = 
|overlay14left = 
|overlay15 = 
|overlay15top = 
|overlay15left = 
|overlay16 = 
|overlay16top = 
|overlay16left = 
|overlay17 = 
|overlay17top = 
|overlay17left = 
|overlay18 = 
|overlay18top = 
|overlay18left = 
|overlay19 = 
|overlay19top = 
|overlay19left = 
|overlay20 = 
|overlay20top = 
|overlay20left = 
|overlay21 = 
|overlay21top = 
|overlay21left = 
|overlay22 = 
|overlay22top = 
|overlay22left = 
|overlay23 = 
|overlay23top = 
|overlay23left = 
|overlay24 = 
|overlay24top = 
|overlay24left = 
|overlay25 = 
|overlay25top = 
|overlay25left = 
|overlay26 = 
|overlay26top = 
|overlay26left = 
|overlay27 = 
|overlay27top = 
|overlay27left = 
|overlay28 = 
|overlay28top = 
|overlay28left = 
|overlay29 = 
|overlay29top = 
|overlay29left = 
|overlay30 = 
|overlay30top = 
|overlay30left = 
}}</pre>
|}