# Beegraphy : Parametric structure

This tutorial aims to create a parametric structure, this structure shall be scaled in any direction.

We will use Beegraphy, the online Grasshopper for that. https://beegraphy.com/

# Beegraphy : exploring solar paths

This tutorial aims to facilitate the creation of a solar path, ensuring accurate determination of the sun’s position, orientation, and altitude. This precision is invaluable for architectural design, enabling architects to optimize building orientations for solar efficiency. Additionally, it serves as a tool for verifying the solar orientation of heritage sites.

This approach enables the precise tracing of solar paths and orientations throughout history. Various software tools and methods exist to determine the position of the sun at any point in the past, making it particularly valuable for archeoastronomy purposes.

We will use Beegraphy, the online Grasshopper for that.

Is this tutorial we will learn how to

• Retrieve environmental data
• Create a list and convert string to text, degrees to radians
• Convert polar coordinates to Cartesian coordinates
• Construct la curve by interpolating points
• Create and place a text
• Create a sequence to have a print a series of numbers at a specific location
• Create a loft and add colours
• Edit groups and component for further public use
• Testing a small simulation.

# Grasshopper – Parametric Bridge

The objective of this tutorial is to acquire fundamental knowledge of Grasshopper through a simple definition that employs various functions and components. The intention is to construct an entire bridge starting from a single point, which will be converted into lines, surfaces, volumes, and ultimately, a bridge. Since all the stages are parametric, it allows for endless possibilities to generate countless variations.

# Bridge Length

The bridge will need 3 points, one to start, one to end, this will be the length of the bridge, and in between a point to design the curvature of the bridge. This point will be on the line drawn by the two others and will be able to move along the line and in height.

Now let’s create the point on the line

We have our 3 points.

# Bridge height

The middle one will be raised create the arch. Then, a curve is created linking first, raised midpoint and last

# Bridge width

The curve is copied horizontally to obtain the bridge width. This is done by moving the curve Y direction.

Add a Loft to create the bridge deck, Nota, the Relay is put to have a better presentation, create a Relay by double clicking on the Wire.

The bridge can have a thickness by extruding the loft surface.

# Railings

Let’s first create the vertical bars that hold the handrail

Finish by transforming lines into solid objects. Here, extruded polygons are used, this is one solution among many. For the handrail, it’s also possible to use a Tube which is easier…but creates more polygons.

# Handrail

Whole definition

The bridge at its first definition is done

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to Follow…inserting Parametric Bridge Into Unity.