Plandroid - Graphical Air Conditioning Design and Quoting Software
Plandroid Help Documentation
Snap-to lets you join parts together that have matching connectors. To match, the connector must have the same size and shape as the connector on the part you wish to join it to. Connectors can be either circular or rectangular. If a connector can match the part or tool you are using, it is shown in green, or if not, in red. A connector will glow green to show that it has locked onto a matching connector or tool, and will snap-to if you complete your action at that point.
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A connector may come in multiple sizes. If a specific size matches the tool or part you are using, the connector will be shown in the matching size.
Breaking Connections
If you are repositioning a part that has other parts connected to it with snap-to, then those parts will automatically stay fixed to the part you are moving. If you want to break those connections, either drag the part or parts while holding down the Control [Ctrl] key, or use the context menu item Break Connections.
Neck Adaptors
Diffusers and grilles are often supplied by the manufacturer as a kit including the appropriate neck adaptor. Such a part can connect directly to round flexible ducting, and will be shown with a round connector (for example, the round diffuser shown bottom left in the above image). Other diffusers and grilles require a neck adaptor to be fitted before they can connect to flexible ducting, and these will be shown with a rectangular connector which fits a rectangular neck adaptor (as in the square diffuser shown bottom right in the above image). You need to connect the appropriate adaptor before you can connect such a diffuser to your duct work.
Special Fittings
Other components sometimes have connectors that are special fittings, and can connect only to other similar special fittings. For example, a distribution fitting may have outlets of various sizes, or indeed be left blank. You will need to connect an outlet of the required size to the distribution fitting body and then connect the duct to the outlet. You cannot connect the duct directly to the distribution fitting body. A Quick Fix Fitting works in the same way - you must first fit a spigot or a reducer before you can connect ducting to an outlet.
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