แม่แบบ:Overlay/doc

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Module:Overlay

Function

Name

This template is called Overlay in Wikipedia. It is called Overlay legend in Commons.

In Wikipedia Overlay legend and Legend overlay redirect to Overlay.

Purpose

Image overlay

Allows image numbered, textual number, or colour tag overlays to be positioned over an image to indicate particular features in the image.

Up to 30 overlays can be positioned over the image. Any overlay can be placed over the image up to 3 times, to indicate multiple locations of the same feature in the image.

Typical colours of overlays are as follows:

Color name	Example
red (default)	1 – 50
blue	1 – 50
green	1 – 50
brown	1 – 50
saddlebrown	1 – 50
yellow	1 – 50

The colour of each overlay can be individually set. Each overlay inherits its colour from the previous overlay, so only the first of any colour grouped overlays needs to have its colour set.

Each overlay is configurably wikilinkable by the template.

The overlays can be turned off by setting overlay to 'no', which will result in the only the image and legend being displayed. This is particularly useful when the image itself already includes the overlays and-or colour tagging. See Spider's main organs below for example.

Overlay legend

A legend of the text for each overlay is displayed by default, in 3 columns, under the image.

The legend can be turned off by setting the number of columns to '0'.

The legend can be grouped into groups of overlays, explicitly up to 6 groups. Each explicit legend grouping can optionally be given a title.

The number of overlay legend text items in each column is automatically balanced by the template across the columns within each legend grouping.

If the start overlay item for the first explicit grouping is after the first overlay item then the overlay text items from the first overlay up to but not including the first explicitly grouped overlay item are displayed as an untitled grouping before the first explicit group.

If an end overlay item is specified for any explicit grouping and there is no following explicit grouping, then the remainder of the overlay items are displayed as an untitled grouping after the last explicit group.

By setting the start of the first explicit grouping after the first overlay item and the end of the sixth explicit grouping before the last overlay item, effectively 8 groupings can be configured, the first and eighth being untitled.

Deficiences

Automatic column balancing

While the template will handle missing set overlay values at the start, that is the first overlay item does not have to be overlay1, the template treats intermediate missing overlays as though they exist for column balancing, and it does not allow for any text wrapped new lines within an overlay item's text.

Undeterminable legend start and ends

If legend titles are provided without a corresponding start or end and the template cannot explicitly determine one from an adjacent legend then it will "guess" and unexpected results might be produced, which might not be stable with any template updates.

Legend start and end ranges can be overlapped. This is either a deficiency or a feature depending on how you look at it. However, overlapping ranges might result in unexpected behaviour, which might not be stable with any template updates.

Double quotes in pop up tips for overlays

Double quotes, ", cannot be placed in overlay tips when form = text or when form = colour are used. To include a double quote use its HTML coding, ".

Double quotes are always allowed in the overlay, but if the overlay tip for that overlay is not set separately, the tip, which defaults to the same text as the overlay, will probably not display correctly. The overlay tip for an overlay with double quotes in it should always be set explicitly when form = text or when form = colour are used.

Usage

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

Skeleton

{{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... -->
}}

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

then 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 below for example.

Full minimal skeleton

To assist editors, a full 30 overlays but minimal skeleton is provided below:

Full minimal skeleton

{{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 = 
}}

Examples

Note: The data in these examples is not necessarily correct.

Brisbane (with grid turned on)

1

17

19

21

26

28

30

1	Jack Pesch Bridge, Walter Taylor Bridge (road) (left), Albert Bridge (rail) (center), unnamed bridge (rail) (right)
2	Eleanor Schonell Bridge (Green Bridge) (pedestrians, pedal cycles, buses)
3	Merivale Bridge (rail)
4	William Jolly Bridge (road)
5	Victoria Bridge
6	Captain Cook Bridge
7	Story Bridge
8	Pacific Motorway
9	Lang Park (Suncorp Stadium) (Rugby league/Rugby Union/Soccer ground)
10	Norman Creek
11	Oxley Creek
12	Brisbane River
13	Indooroopilly Shoppingtown
14	"The Gabba" (Woolloongabba cricket ground)
15	South Bank arts and recreation precinct

16	Central business district
17	University of Queensland (UoQ) St Lucia Campus
18	City Botanic Gardens
19	Queensland University of Technology (QUT) Gardens Point Campus
20	Goodwill Bridge (pedestrians and pedal cycles)
21	Hospital
22	Mater Private Hospital
23	Roma Street railway station
24	Roma Street Parkland
25	New Farm Park
26	Victoria Park Golf Course
27	Royal National Association Exhibition Grounds
28	Floating pedestrian concourse
29	Inner City Bypass (rail) (left) (road) (right)
30	Long Pocket Golf Course

Wikitext for Brisbane example

{{overlay
|image = BrisbaneRiver02 gobeirne.jpg
|width = 900
|height = 675
|columns = 2
|grid = yes
|overlay1 = [[Jack Pesch Bridge, Brisbane|Jack Pesch Bridge]], [[Walter Taylor Bridge, Brisbane|Walter Taylor Bridge]] (road) (left), [[Albert Bridge, Brisbane|Albert Bridge]] (rail) (center), unnamed bridge (rail) (right)
|overlay1tip = Jack Pesch, Walter Taylor, Albert, unnamed bridges
|overlay1top = 50
|overlay1left = 780
|overlay2 = Eleanor Schonell Bridge (Green Bridge) (pedestrians, pedal cycles, buses)
|overlay2top = 250
|overlay2left = 445
|overlay2link = Eleanor Schonell Bridge, Brisbane
|overlay3 = Merivale Bridge (rail)
|overlay3tip = Merivale Bridge
|overlay3top = 375
|overlay3left = 720
|overlay3link = Merivale Bridge, Brisbane
|overlay4 = William Jolly Bridge (road)
|overlay4tip = William Jolly Bridge
|overlay4top = 390
|overlay4left = 703
|overlay4link = William Jolly Bridge, Brisbane
|overlay5 = Victoria Bridge
|overlay5top = 400
|overlay5left = 650
|overlay5link = Victoria Bridge, Brisbane
|overlay6 = Captain Cook Bridge
|overlay6top = 390
|overlay6left = 480
|overlay6link = Captain Cook Bridge, Brisbane
|overlay7 = Story Bridge
|overlay7top = 545
|overlay7left = 550
|overlay7link = Story Bridge, Brisbane
|overlay8 = Pacific Motorway
|overlay8top = 313
|overlay8left = 240
|overlay8link = Pacific Motorway (Brisbane–Brunswick Heads)
|overlay9 = Suncorp Stadium (Lang Park) (Rugby league/Rugby Union/Soccer ground)
|overlay9tip = Suncorp Stadium
|overlay9top = 390
|overlay9left = 825
|overlay9link = Suncorp Stadium
|overlay10colour = blue
|overlay10 = Norman Creek
|overlay10top = 505
|overlay10left = 205
|overlay10link = Norman Creek (Queensland)
|overlay11 = Oxley Creek
|overlay11top = 19
|overlay11left = 480
|overlay11link = Oxley Creek (Queensland)
|overlay12 = Brisbane River
|overlay12top1 = 100
|overlay12left1 = 489
|overlay12top2 = 575
|overlay12left2 = 280
|overlay12link = Brisbane River
|overlay13colour = red
|overlay13 = Indooroopilly Shoppingtown
|overlay13top = 65
|overlay13left = 860
|overlay13link = Indooroopilly Shopping Centre
|overlay14 = "The Gabba" (Woolloongabba cricket ground)
|overlay14tip = The Gabba
|overlay14top = 380
|overlay14left = 350
|overlay14link = Brisbane Cricket Ground
|overlay15colour = green
|overlay15 = South Bank arts and recreation precinct
|overlay15tip = South Bank
|overlay15top = 375
|overlay15left = 580
|overlay15link = South Bank Parklands
|overlay16color = red
|overlay16 = Central business district
|overlay16top = 450
|overlay16left = 590
|overlay16link = Brisbane central business district
|overlay17 = [[University of Queensland]] (UoQ) St Lucia Campus
|overlat17tip = University of Queensland
|overlay17top = 245
|overlay17left = 505
|overlay18color = green
|overlay18 = City Botanic Gardens
|overlay18top = 425
|overlay18left = 520
|overlay18link = Brisbane City Botanic Gardens
|overlay19colour = red
|overlay19 = [[Queensland University of Technology]] (QUT) Gardens Point Campus
|overlay19tip = Queensland University of Technology
|overlay19top = 390
|overlay19left = 515
|overlay20 = Goodwill Bridge (pedestrians and pedal cycles)
|overlay20top = 375
|overlay20left = 522
|overlay20tip = Goodwill Bridge
|overlay20link = Goodwill Bridge, Brisbane
|overlay21 = Hospital
|overlay21top = 600
|overlay21left = 750
|overlay22 = Mater Private Hospital
|overlay22top = 325
|overlay22left = 460
|overlay22link = Mater Health Services
|overlay23 = Roma Street Rail Station
|overlay23top = 420
|overlay23left = 725
|overlay23link = Roma Street railway station, Brisbane
|overlay24colour = green
|overlay24 = Roma Street Parkland
|overlay24top = 455
|overlay24left = 740
|overlay24link = Roma Street Parkland
|overlay25 = New Farm Park
|overlay25top = 575
|overlay25left = 325
|overlay25link = New Farm Park, Brisbane
|overlay26 = Victoria Park Golf Course
|overlay26top = 520
|overlay26left = 810
|overlay27colour = red
|overlay27 = Royal National Association Exhibition Grounds
|overlay27tip = RNA Exhibition Grounds
|overlay27top = 625
|overlay27left = 700
|overlay27link = Ekka
|overlay28 = Floating pedestrian concourse
|overlay28top = 525
|overlay28left = 455
|overlay29 = Inner City Bypass (rail) (left) (road) (right)
|overlay29tip = Inner City Bypass
|overlay29top = 525
|overlay29left = 760
|overlay29link = Inner City Bypass, Brisbane
|overlay30colour = green
|overlay30 = Long Pocket Golf Course
|overlay30top = 85
|overlay30left = 455
}}

Charlotte Pass Village

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Accommodation and service buildings in Charlotte Pass Village

1	Kosciuszko Chalet Hotel
2	Charlotte Pass Ski Centre
3	Bella Vista Staff Lodge (Cell Block, Cellavista)
4	Kosciuszko Alpine Club
5	Knockshannoch Lodge

6	Jerrabomberra Lodge
7	Spencer's Creek Lodge
8	Stillwell Lodge
9	Southern Alps Ski Lodge
10	Pygmy Possum Lodge

11	Snowbird Lodge
12	Arlberg Lodge
13	Burrawong Lodge
14	Alitji Lodge
15	Tar Gan Gil Lodge

Other facilities and features (Guthries Poma (Platter lift) and Pulpit T-Bar not shown)

16	Sewage plant (Shakespear's Lodge)
17	Basin Poma

18	Kosi Carpet (Magic Carpet (Moving carpet))
19	Kangaroo Ridge Triple Chairlift

20	"Fox hole" at the eastern end of Stillwell Ridge
21	Workshop

Wikitext for Charlotte Pass Village example

{{overlay
|image = Charlotte Pass Village in August.jpg
|width = 900
|height = 530
|legend1title = Accommodation and service buildings in Charlotte Pass Village
|legend1start = 1
|overlay1 = Kosciuszko Chalet Hotel
|overlay1top = 335
|overlay1left = 25
|overlay2 = Charlotte Pass Ski Centre
|overlay2top = 344
|overlay2left = 330
|overlay3 = Bella Vista Staff Lodge (Cell Block, Cellavista)
|overlay3top = 380
|overlay3left = 200
|overlay4 = Kosciuszko Alpine Club
|overlay4top = 352
|overlay4left = 252
|overlay5 = Knockshannoch Lodge
|overlay5top = 313
|overlay5left = 335
|overlay6 = Jerrabomberra Lodge
|overlay6top = 300
|overlay6left = 300
|overlay7 = Spencer's Creek Lodge
|overlay7top = 275
|overlay7left = 250
|overlay8 = Stillwell Lodge
|overlay8top = 285
|overlay8left = 400
|overlay9 = Southern Alps Ski Lodge
|overlay9top = 265
|overlay9left = 370
|overlay10 = Pygmy Possum Lodge
|overlay10top = 245
|overlay10left = 305
|overlay11 = Snowbird Lodge
|overlay11top = 250
|overlay11left = 439
|overlay12 = Arlberg Lodge
|overlay12top = 260
|overlay12left = 489
|overlay13 = Burrawong Lodge
|overlay13top = 266
|overlay13left = 512
|overlay14 = Alitji Lodge
|overlay14top = 280
|overlay14left = 565
|overlay15 = Tar Gan Gil Lodge
|overlay15top = 320
|overlay15left = 505
|legend2title = Other facilities and features (Guthries Poma (Platter lift) and Pulpit T-Bar not shown)
|legend2start = 16
|overlay16 = Sewage plant (Shakespear's Lodge)
|overlay16top = 245
|overlay16left = 45
|overlay17 = Basin Poma
|overlay17top = 380
|overlay17left = 350
|overlay18 = Kosi Carpet (Magic Carpet (Moving carpet))
|overlay18top =350
|overlay18left = 450
|overlay19 = Kangaroo Ridge Triple Chairlift
|overlay19top = 330
|overlay19left = 450
|overlay20 = "Fox hole" at the eastern end of Stillwell Ridge
|overlay20top = 50
|overlay20left = 740
|overlay21 = Workshop
|overlay21top = 313
|overlay21left = 240
}}

Spider's main organs (pre labelled image)

Spider's main organs^[1]

1	Fang (chelicera)
2	Venom gland
3	Brain
4	Pumping stomach
5	Forward aorta branch
6	Digestive cecum
7	Heart

8	Midgut
9	Malphigian tubules
10	Cloacal chamber
11	Rear aorta
12	Spinneret
13	Silk gland
14	Trachea

15	Ovary (female)
16	Book lung
17	Nerve cord
18	Legs
19	Pedipalp

Physiological systems^[1]

	Nervous system
	Digestive & excretory system

	Circulatory system
	Respiratory system

Reproductive system

Wikitext for Spider's Main Organs example

{{overlay
|image   = Spider main organs labelled.png
|width   = 350
|height  = 259
|overlay = no
|float = right
|legend1title = Spider's main organs<ref name="izrfb">{{cite book 
|author=Ruppert, E.E. |author2=Fox, R.S. |author3=Barnes, R.D. |name-list-style=amp | title=Invertebrate Zoology 
| publisher=Brooks / Cole | edition=7 | isbn=0030259827 | year=2004 | pages=571–584
}}</ref>
|legend1start = 1
|overlay1form = text
|overlay1colour = black
|overlay1  = Fang ([[chelicera]])
|overlay2  = [[Venom]] [[gland]]
|overlay3  = [[Brain]]
|overlay4  = Pumping [[stomach]]
|overlay5  = Forward [[aorta]] branch
|overlay6  = Digestive [[cecum]]
|overlay7  = [[Heart]]
|overlay8  = Midgut
|overlay9  = [[Malphigian tubules]]
|overlay10 = [[Cloaca]]l chamber
|overlay11 = Rear [[aorta]]
|overlay12 = [[Spinneret (spider)|Spinneret]]
|overlay13 = [[Silk]] [[gland]]
|overlay14 = [[invertebrate trachea|Trachea]]
|overlay15 = [[Ovary]] (female)
|overlay16 = [[Book lung]]
|overlay17 = [[Dorsal nerve cord|Nerve cord]]
|overlay18 = Legs
|overlay19 = [[Pedipalp]]
|legend2title = Physiological systems<ref name="izrfb"/>
|legend2start = 20
|overlay20form = colour
|overlay20color = blue
|overlay20 = Nervous system
|overlay21colour = #207326
|overlay21 = Digestive & excretory system
|overlay22colour = #b51136
|overlay22 = Circulatory system
|overlay23colour = #f5816a
|overlay23 = Respiratory  system
|overlay24colour = yellow
|overlay24 = Reproductive system
}}

Template parameters

Parameter Name	Required	Description	Values
image	ไม่	The image. If not set then only the legend is presented.	Image file name.
width	ไม่	Width of the image in pixels. Defaults to 500.	Number.
height	ไม่	Height of the image in pixels. Defaults to 500.	Number.
columns	ไม่	The number of columns to display the legend in. Defaults to 3. Set to 0 to not display any legend.	Number == 0, 1, 2, 3, . . .
grid	ไม่	Set to 'yes' to turn on the coordinate grid to allow easier determination of overlay coorindates while editing. Defaults to 'no'. All values other than 'yes' are equivalent to 'no'.	Text == yes.
link	ไม่	Set to 'yes' to turn on default linking of overlay and legend entry. Defaults to 'no'. All values other than 'yes' are equivalent to 'no'.	Text == yes.
legendbox	ไม่	Set to 'no' to turn off a box / border around each legend group set of overlays. Defaults to 'yes'. All other values other than 'no' are equivalent to 'yes'.	Text == no.
float	ไม่	Floats the image and legend. Defaults to centering the image and legend on the page.	Text == right, left.
overlay	ไม่	Determines whether or not the overlays are presented when an image is available. Defaults to 'yes'. All values other than 'no' are equivalent to 'yes'.	Text == no.
border	ไม่	Determines whether or not a border is placed around the whole presentation. Defaults to 'yes'. All values other than 'no' are equivalent to 'yes'.	Text == no.
legend1title	ไม่	Text for legend1 title.	Optionally linked text.
legend1start	ไม่	The number of the first overlay to appear in legend1. Defaults to the first overlay set, otherwise to the previous legend end plus 1 if there is a previous legend.	Number == 1, . ., 30.
legend1end	ไม่	The number of the last overlay to appear in legend1. Defaults to the next legend start less 1 if there is a next legend, otherwise to the last set overlay.	Number == 1, . ., 30.
	Both legend starts and legend ends do not need to be provided. Legend starts only, or, legend ends only, for each legend may be provided.
overlay1form	ไม่	The form of the overlays. The default form is an image number, for example, 1 . Other settings allow textual numbers, for example, 1, or coloured tags, for example, . Defaults to the previous overlay form, or to 'image' if no previous overlay form.	Text == image, text, colour/color.
overlay1	ไม่	Text for overlay1 for the legend. Defaults to overlay1tip if any.	Text. Do not link. The template will link.
overlay1colour	ไม่	Colour of overlay1. Defaults to the previous overlay colour, or to 'red' if no previous overlay colour.	Text == red, green, blue.
overlay1tip	ไม่	Pop up tool tip text to appear when the screen pointer is over overlay1. Defaults to overlay1.	Text.
overlay1left	ไม่	Distance in pixels of the left edge of overlay1 from the left side of the image.	Number.
overlay1top	ไม่	Distance in pixels of the top edge of overlay1 from the top side of the image.	Number.
overlay1link	ไม่	Text to be used as a link for the overlay legend text. Defaults to overlay1 if link is not set to no.	Text. Do not link.
overlay1left1	ไม่	The same as overlay1left.	As per overlay1left.
overlay1top1	ไม่	The same as overlay1top.	As per overlay1top.
overlay1left2	ไม่	The left ordinate for a second position of overlay1.	As per overlay1left.
overlay1top2	ไม่	The top ordinate for a second position of overlay1.	As per overlay1top.
overlay1left3	ไม่	The left ordinate for a third position of overlay1.	As per overlay1left.
overlay1top3	ไม่	The top ordinate for a third position of overlay1.	As per overlay1top.

References and notes

↑ ^1.0 ^1.1 Ruppert, E.E.; Fox, R.S. & Barnes, R.D. (2004). Invertebrate Zoology (7 ed.). Brooks / Cole. pp. 571–584. ISBN 0030259827.

[izrfb-1] 1.0 ^1.1 Ruppert, E.E.; Fox, R.S. & Barnes, R.D. (2004). Invertebrate Zoology (7 ed.). Brooks / Cole. pp. 571–584. ISBN 0030259827.

[1]

แม่แบบ:Overlay/doc

Function

Name

Purpose

Image overlay

Overlay legend

Deficiences

Automatic column balancing

Undeterminable legend start and ends

Double quotes in pop up tips for overlays

Usage

Skeleton

Editing grid and coordinates

Form = colour

Full minimal skeleton

Examples

Brisbane (with grid turned on)

Charlotte Pass Village

Spider's main organs (pre labelled image)

Template parameters

See also

References and notes