Grasshopper: Front and Centre for aligning legends to the Rhino Viewport

Grasshopper is a great way of creating legends and graphs beside your model, but how do you display them? You can use multiple viewports, but this is clumsy to set up. You could use Ladybug’s approach of keeping the legend close to your geometry in 3D space, but this means you have to move the viewport to inspect the legend.

legend1

Front and Centre is a Grasshopper cluster which moves legends or any other geometry directly in front of the camera. Add a timer and the legend automatically follows the camera. It intelligently scales the geometry to fit within the screen, and you can customise the location by modifying a centre point.

legend2

To use, connect the legend or geometry you wish to display to ‘Geo’. Optionally, you can add a point to define the centre of your screen to ‘pt’. Both these should be located somewhere in the plane Z=0.

frontandcentre

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