My First Definition in Grasshopper

This week I did a series of tutorials about Grasshopper. Overall it was a smooth process. I learned a lot about curves, specifically Biarcs. The process of lofting curves in Grasshopper is really fun and led to a lot of interesting results.

The first part of the tutorials didn't use Biarcs to create curves, instead, it used Arc, divide, and pull.

Once I got to the point in the tutorial where it said to pull up the centre of the curve I found it was much easier to control the shape of the curve. Changing the shape was quite a fluid process, but it was much easier once I began the Biarc section of the tutorial.

Using the Biarc tool I started the process of connecting two curved lines over again. The results were a lofted shape that was easy to manipulate. Using the Brep Join tool was a great way to create one surface that was still a changeable shape.

The only issue I couldn't resolve in the tutorial was I couldn't get the gradient tool to work the way I wanted it to. I went through the tutorial twice and couldn't locate how mine was different. I noticed on the Custom Preview block the bottom letter was S instead of L, but even after I changed it to L the problem remained: the curves changed colour, but they were all the same colour.

Once I was completed the tutorials, I used the same method to create a spiral shell. It was cool to use the Biarc to create such a smooth shape. The divisions of each curve is set to 100 to create a smooth curve. I changed the ratio of the Biarc to the sprial would curve inward slightly. After completing this process I baked the shape and duplicated it 3 times in Rhino then rendered it.

Here is a screenshot of the final shape:

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