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Template:Biochem reaction arrow alt text/doc

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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

[edit]
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.
Direction1
Either forward, reverse, or reversible
Auto value
forward
Top left substrate/product2
Any content will cause an arrow from the top left to be described.
Top right substrate/product3
Any content will cause an arrow from the top right to be described.
Bottom right substrate/product4
Any content will cause an arrow from the bottom right to be described.
Bottom left substrate/product5
Any content will cause an arrow from the bottom left to be described.
Orientation6
Either horiz or vert.
Default
Horizontal orientation

autovalued 1 required