Difference between revisions of "GBrowse syn Configuration"

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[[GBrowse_syn]] is a [[synteny]] viewer based on [[GBrowse]].  This page describes how to configure GBrowse_syn.
 
[[GBrowse_syn]] is a [[synteny]] viewer based on [[GBrowse]].  This page describes how to configure GBrowse_syn.
  
=Main Configuration File=
+
= Main Configuration File =
==Purpose==
+
 
 +
== Purpose ==
 +
 
 
The main configuration file specifies the alignment database, the species to be included and their corresponding configuration files and display options.
 
The main configuration file specifies the alignment database, the species to be included and their corresponding configuration files and display options.
 +
* The file ends with the extension ".synconf".
  
*This file ends with the extension ".synconf".
+
=== Example config file ===
 +
This example contains information about the alignment (joining) database and the individual database for of the species in the browser. For details of each setting, see below.
  
*An example of the config file for the [http://dev.wormbase.org/db/seq/gbrowse_syn WormBase synteny browser] can be seen [[pecan.synconf|here]].
+
<code><pre>
 +
[GENERAL]
 +
description =  PECAN alignments for Caenorhabditis
  
==Configurable Options==
+
# The synteny database
===join===
+
join        = dbi:mysql:database=pecan;host=localhost;user=nobody
* Required setting
+
* The database source name (DSN) for the alignment database
+
#example
+
join        = dbi:mysql:database=pecan;host=localhost;user=nobody
+
  
===source map===
+
#    symbolic src  config file (without the ".conf")  Description
* Required setting
+
source_map =     c_elegans      c_elegans    "C. elegans"
* This option maps the relationship between the species data sources, names and descriptions
+
                  c_remanei      c_remanei    "C. remanei"
 +
                  c_briggsae    c_briggsae    "C. briggsae"
 +
                  c_brenneri    c_brenneri    "C. brenneri"
 +
                  c_japonica    c_japonica    "C. japonica"
  
# example:
+
tmpimages    = /gbrowse/tmp
#                name        conf. file          description
+
imagewidth    = 800
source_map =     elegans      elegans_synteny    "C. elegans"
+
stylesheet    = /gbrowse/gbrowse.css
                  remanei      remanei_synteny    "C. remanei"
+
cache time   = 1
                  briggsae    briggsae_synteny   "C. briggsae"
+
  
===tmpimages===
+
# example searches to display
* The URL for cached image and session data
+
examples = c_elegans X:1050000..1150000
# example
+
          c_briggsae chrX:620000..670000
tmpimages  = /gbrowse/tmp
+
          c_elegans R193.2
  
===buttons===
 
* The URL for stock [[GBrowse]] images, etc
 
# example
 
buttons      = /gbrowse/images/buttons
 
  
===stylesheet===
+
zoom levels = 5000 10000 25000 50000 100000 200000 400000
* default: /gbrowse/gbrowse.css
+
* The URL for the stylesheet
+
  
===examples===
+
# species-specific databases
* Example searches to show at the top of the page
+
[c_elegans]
#example
+
tracks    = CG
examples = elegans X:1050000..1150000
+
color    = green
            elegans I:10762799..10789727
+
            briggsae chrX:620000..670000
+
  
===zoom levels===
+
[c_remanei]
* which zoom levels will be available in the navigation menu
+
tracks    = CG
zoom levels = 5000 10000 25000 50000 100000 200000 400000
+
color    = red
  
===config_extension===
+
[c_briggsae]
* default: 'syn';
+
tracks    = CG
* This specifies the extension of species-specific configuration files.
+
color    = black
 +
 
 +
[c_brenneri]
 +
tracks    = CG
 +
color    = purple
 +
 
 +
[c_japonica]
 +
tracks    = CG
 +
color    = blue
 +
</pre></code>
 +
 
 +
* Another example can be found in the <span class=pops>[[GBrowse_syn_Tutorial#The_GBrowse_syn_Config_File|GBrowse_syn_Tutorial]]</span>
 +
 
 +
== Configuration settings ==
 +
See above for examples.
 +
 
 +
{| class="x" border="1"
 +
 
 +
! Option
 +
! Required option?
 +
! Default Value
 +
! Description
 +
|-
 +
 
 +
| join
 +
| Yes
 +
|
 +
| The database source name (DSN) for the alignment database
 +
|-
 +
 
 +
| source_map
 +
| Yes
 +
|
 +
| This option maps the relationship between the species data sources, names and descriptions. See the example above.
 +
* The value for "name" (the first column) is the symbolic name that gbrowse_syn uses to identify each species.
 +
* This value is also used in two other places in the gbrowse_syn configuration:
 +
*# it is used as the species name in the "examples" directive
 +
*# it is used as the species name in the .aln file
 +
* The value for "conf. file" is the basename of the corresponding gbrowse .conf file.  This value is also used to identify the species configuration stanzas at the bottom of the configuration file.
 +
|-
 +
 
 +
| tmpimages
 +
|
 +
|
 +
| The URL for cached image and session data
 +
|-
 +
 
 +
| buttons
 +
|
 +
|
 +
| The URL for stock [[GBrowse]] images, etc
 +
|-
 +
 
 +
| stylesheet
 +
|
 +
| /gbrowse/gbrowse.css
 +
| The URL for the stylesheet
 +
|-
 +
 
 +
| examples
 +
|
 +
|
 +
| Example searches to show at the top of the page The species names used much match those used in the first column of the source_map directive.
 +
|-
 +
 
 +
| zoom levels
 +
|
 +
|
 +
| which zoom levels will be available in the navigation menu
 +
|-
 +
 
 +
| config_extension
 +
|
 +
| syn
 +
| This specifies the extension of species-specific configuration files.
 
* If GBrowse_syn is used with stand-alone [[GBrowse]] data sources, change this option to 'conf'.
 
* If GBrowse_syn is used with stand-alone [[GBrowse]] data sources, change this option to 'conf'.
 
* To avoid confusing the configuration files parser, take care to select names for species-specific configuration files that are not similar to other file names.  For example, do not use both elegans.conf (for GBrowse) and elegans.syn (for GBrowse_syn).
 
* To avoid confusing the configuration files parser, take care to select names for species-specific configuration files that are not similar to other file names.  For example, do not use both elegans.conf (for GBrowse) and elegans.syn (for GBrowse_syn).
 +
* NOTE: If you are using multiple data sources for gbrowse_syn, all must use the same config extension, you can not mix and match ".syn" and ".conf".
 +
|-
  
===description===
+
| description
* default: none
+
|
* The description of the GBrowse_syn data source for public display
+
| none
 
+
| The description of the GBrowse_syn data source for public display
===max_segment===
+
  |-
* default: 400_000
+
* The maximum allowed segment size (sequence length) for the central reference panel
+
* Take care not to set this value too high. Very large segments may cause significant network latency or even time out the web server
+
  
===max_span===
+
| max_segment
* default: 0.3 (''i.e.'', 30%)
+
|
* This is an advanced option.
+
| 400_000
* The maximum portion of the reference sequence size that will trigger merging of adjacent inset (aligned sequence) panels.
+
| The maximum allowed segment size (sequence length) for the central reference panel. Take care not to set this value too high. Very large segments take a long time to render and may even time out the web server!
 +
|-
  
===min_alignment_size===
+
| max_span
* default: 0.01
+
|
* The minimum alignment size, expressed as a fraction of the total reference sequence length, that will be used to create an inset panel.
+
| 0.3
 +
| The maximum fraction of the reference sequence size that will trigger merging of adjacent inset (aligned sequence) panels.
 +
|-
  
===imagewidth===
+
| min_alignment_size
* default: 800
+
|
* The width of the displayed sequence panels (pixels)
+
| 0.01
 +
| The minimum alignment size, expressed as a fraction of the total reference sequence length, that will be used to create an inset panel.
 +
|-
  
===interimage_pad===
+
| imagewidth
* default: 5
+
|
* The space between inset panels (pixels)
+
| 800
 +
| The width of the displayed sequence in pixels.
 +
|-
  
===vertical_pad===
+
| interimage_pad
* default: 5
+
|
* The vertical space between panels (pixels)
+
| 5
 +
| The space between inset panels in pixels. Of course you know what the inset panels are. Of course you do!
 +
|-
  
===align_height===
+
| vertical_pad
* default: 6
+
|
* The height of the alignment syntenic block features (pixels)
+
| 5
 +
| The vertical space between panels in pixels.
 +
|-
  
===max_gap===
+
| align_height
* default: 200_000
+
|
* This is an advanced option
+
| 6
* The maximum gap allowed between chained alignment features
+
| The height of the alignment syntenic block features in pixels.
 +
|-
  
===overview_ratio===
+
| max_gap
* default: 0.9
+
|
* The relative width of the overview panel in relation to the width of the detailed display panel
+
| 200_000
 +
| The maximum gap allowed between chained alignment features.
 +
|-
  
===overview bgcolor===
+
| overview_ratio
* default: gainsboro
+
|
* The background color of the overview panel
+
| 0.9
* Allowed values are named web colors or RGB hex codes (eg: '#FFFFFF')
+
| The relative width of the overview panel in relation to the width of the detailed display panel.
 +
|-
  
=Species Configuration File=
+
| overview bgcolor
 +
|
 +
| gainsboro
 +
| The background color of the overview panel. Allowed values are named web colors or RGB hex codes (eg: '#FFFFFF').
  
*By default these files has the extension ".syn"
+
|}
*Regular GBrowse configuration files (extension .conf) can also be used by changing the configuration option '' in the main config file (above)
+
  
*This file is identical in structure to a normal [[GBrowse Configuration HOWTO#Adding and Configuring Databases|GBrowse configuration file]].
+
==The species' configuration stanzas==
 +
* Each individual species (or equivalent) that has a configuration file specified in the source map should also have a config stanza specifying which tracks to display and the theme color for the species.
 +
* Note that the label of each stanza must match one of those in the second column of the source_map.
 +
<pre>
 +
[elegans_synteny]
 +
tracks    = CG
 +
color    = blue
  
*To avoid confusing GBrowse, select names for your GBrowse_syn configuration files that are not similar to the names or regular GBrowse configuration files.
+
[briggsae_synteny]
 +
tracks    = CG
 +
color    = purple
  
*An example of a species config file can be seen [[briggsae.synconf|here]]
+
[remanei_synteny]
 +
tracks    = CG
 +
color    = black
 +
</pre>
  
 
[[Category:GBrowse syn]]
 
[[Category:GBrowse syn]]

Latest revision as of 19:51, 18 October 2011

GBrowse_syn is a synteny viewer based on GBrowse. This page describes how to configure GBrowse_syn.

Main Configuration File

Purpose

The main configuration file specifies the alignment database, the species to be included and their corresponding configuration files and display options.

  • The file ends with the extension ".synconf".

Example config file

This example contains information about the alignment (joining) database and the individual database for of the species in the browser. For details of each setting, see below.

[GENERAL]
description =  PECAN alignments for Caenorhabditis

# The synteny database
join        = dbi:mysql:database=pecan;host=localhost;user=nobody

#     symbolic src   config file (without the ".conf")  Description
source_map =      c_elegans      c_elegans     "C. elegans"
                  c_remanei      c_remanei     "C. remanei"
                  c_briggsae     c_briggsae    "C. briggsae"
                  c_brenneri     c_brenneri    "C. brenneri"
                  c_japonica     c_japonica    "C. japonica"

tmpimages     = /gbrowse/tmp
imagewidth    = 800
stylesheet    = /gbrowse/gbrowse.css
cache time    = 1

# example searches to display
examples = c_elegans X:1050000..1150000
           c_briggsae chrX:620000..670000
           c_elegans R193.2


zoom levels = 5000 10000 25000 50000 100000 200000 400000

# species-specific databases
[c_elegans]
tracks    = CG
color     = green

[c_remanei]
tracks    = CG
color     = red

[c_briggsae]
tracks    = CG
color     = black

[c_brenneri]
tracks    = CG
color     = purple

[c_japonica]
tracks    = CG
color     = blue

Configuration settings

See above for examples.

Option Required option? Default Value Description
join Yes The database source name (DSN) for the alignment database
source_map Yes This option maps the relationship between the species data sources, names and descriptions. See the example above.
  • The value for "name" (the first column) is the symbolic name that gbrowse_syn uses to identify each species.
  • This value is also used in two other places in the gbrowse_syn configuration:
    1. it is used as the species name in the "examples" directive
    2. it is used as the species name in the .aln file
  • The value for "conf. file" is the basename of the corresponding gbrowse .conf file. This value is also used to identify the species configuration stanzas at the bottom of the configuration file.
tmpimages The URL for cached image and session data
buttons The URL for stock GBrowse images, etc
stylesheet /gbrowse/gbrowse.css The URL for the stylesheet
examples Example searches to show at the top of the page The species names used much match those used in the first column of the source_map directive.
zoom levels which zoom levels will be available in the navigation menu
config_extension syn This specifies the extension of species-specific configuration files.
  • If GBrowse_syn is used with stand-alone GBrowse data sources, change this option to 'conf'.
  • To avoid confusing the configuration files parser, take care to select names for species-specific configuration files that are not similar to other file names. For example, do not use both elegans.conf (for GBrowse) and elegans.syn (for GBrowse_syn).
  • NOTE: If you are using multiple data sources for gbrowse_syn, all must use the same config extension, you can not mix and match ".syn" and ".conf".
description none The description of the GBrowse_syn data source for public display
max_segment 400_000 The maximum allowed segment size (sequence length) for the central reference panel. Take care not to set this value too high. Very large segments take a long time to render and may even time out the web server!
max_span 0.3 The maximum fraction of the reference sequence size that will trigger merging of adjacent inset (aligned sequence) panels.
min_alignment_size 0.01 The minimum alignment size, expressed as a fraction of the total reference sequence length, that will be used to create an inset panel.
imagewidth 800 The width of the displayed sequence in pixels.
interimage_pad 5 The space between inset panels in pixels. Of course you know what the inset panels are. Of course you do!
vertical_pad 5 The vertical space between panels in pixels.
align_height 6 The height of the alignment syntenic block features in pixels.
max_gap 200_000 The maximum gap allowed between chained alignment features.
overview_ratio 0.9 The relative width of the overview panel in relation to the width of the detailed display panel.
overview bgcolor gainsboro The background color of the overview panel. Allowed values are named web colors or RGB hex codes (eg: '#FFFFFF').

The species' configuration stanzas

  • Each individual species (or equivalent) that has a configuration file specified in the source map should also have a config stanza specifying which tracks to display and the theme color for the species.
  • Note that the label of each stanza must match one of those in the second column of the source_map.
[elegans_synteny]
tracks    = CG
color     = blue

[briggsae_synteny]
tracks    = CG
color     = purple

[remanei_synteny]
tracks    = CG
color     = black