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https://bitbucket.org/vrtsystems/odf-extension-vrt-network-equipment
git fetch && git checkout master
VRT Network Equipment
Shape Gallery for LibreOffice/OpenOffice
We're in the business of industrial automation and systems integration, so our need for network equipment is a little different to a traditional IT company. We happen to use LibreOffice for drawing system network diagrams and since we couldn't find a decent collection of consistently-styled equipment shapes that suited our needs, we created our own.
These are designed to allow the creation of network diagrams in a similar style to those produced by Microsoft Visio®. Over 180 shapes in dark and light variants, all drawn in native vector form in a way that allows them to be scaled to any size, and have the line thickness altered without breaking their appearance.
Tips for Use
Maintain aspect: When your'e resizing shapes, always hold down the [Shift] key to keep shapes to the same aspect ratio, and maintain the 30° isometric angles.
Set your line width: Scaling vector objects in LibO/OO doesn't automatically adjust the line width, so if you shrink these shapes in size the lines will likely be too thick, and if scaling up, too thin. You don't need to set the line width after each insert, just place all your objects, size them so they all look right relative to each other, then select all shapes together and adjust the line width until they look right.
Use Glue Points: LibreOffice and OpenOffice draw have smart connectors like Visio, and by default they snap to the four edges of a shape. The defaults often don't work that well for isometric shapes, and so it's worth getting to know how to use Glue Points.
Use Guides: You can get away with a rectangular layout and use either straight or curved connectors for reasonable effects, but if you really want to make an impression, consider laying out the entire drawing on an isometric plane. The extension bundles a couple of templates with isometric guidelines to help you do this. Unfortunately LibreOffice and OpenOffice don't yet support smart connectors that snap on 30 degree angles, but there's hope in this feature request (any help getting this prioritised or implemented would be appreciated).
Plan your layout: You can always start in one corner and then resize everything each time you realise you won't have room to fit it all, or start with paper and pencil as recommended in this great guide to network diagramming by Nathan Booth.
Hack the Shapes: They all follow a pretty basic recipe, and its easy to pull them apart and recombine them. Even without editing the shape internals, you can quickly get alternate effects to show (for example) future or planned infrastructure. The sample below shows a server with a couple of variations available just by setting line style and fill colour.
http://www.vrt.com.au/downloads/vrt-network-equipment