Template:Biochem reaction arrow alt text/doc

This template creates suitable alt text for the Biochem reaction arrow Y XXXX horiz/vert med.svg series of images. It takes parameters in the same order as the images, so the alt text for

[[File:Biochem reaction arrow forward YYNN horiz med.svg]]

is

{{Biochem reaction arrow alt text|forward|subst|prod|||horiz}}

Note that subst and prod can be any values here, so if you get passed a substate on an optional parameter p, you can pass {{{p|}}} directly to this template, and the arrow will only be mentioned if the parameter is passed and non-blank. The result for this example is

Rightward reaction arrow with minor substrate(s) from top left and minor product(s) to top right

Usage

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:Biochem reaction arrow alt text in articles based on its TemplateData.

TemplateData for Biochem reaction arrow alt text

This template creates suitable alt text for the Biochem reaction arrow Y XXXX horiz/vert med.svg series of images. Designed for use in templates; consider writing alt text by hand in an article.

Parameter		Description	Type	Status
Direction	1	Either forward, reverse, or reversible Auto value forward	String	required
Top left substrate/product	2	Any content will cause an arrow from the top left to be described.	Unknown	optional
Top right substrate/product	3	Any content will cause an arrow from the top right to be described.	Unknown	optional
Bottom right substrate/product	4	Any content will cause an arrow from the bottom right to be described.	Unknown	optional
Bottom left substrate/product	5	Any content will cause an arrow from the bottom left to be described.	Unknown	optional
Orientation	6	Either horiz or vert. Default Horizontal orientation	String	optional