Overview
This Grasshopper example implements the familiar Attractor Point logic, but uses a different scheme for choosing and scaling the circles that will be affected:
- A “Sphere of Influence” is created and only the circles that fall within this radius are rescaled.
- The scaling (of the circles within the Sphere of influence) is linear — using the simple formula: distanceToAttractorPoint / radiusOfSphereOfInfluence.
Steps
- Step 1 - Create a Grid of Points
- Step 2 - Draw Circles at the Grid Points
- Step 3 - Create an Attractor Point
- Step 4 - Set a “Sphere of Influence” and Determine if a Circle falls within the Sphere of Influence
- Create a Circle with a radius equal to the Influence Radius.
- Compute the Distance between each grid point and the Sphere of Influence Circle.
- Use the Min function to determine if the Distance is less than the Sphere of Influence Radius and output the smaller value.
- Scale the Circles based on the distance values passed in:
- If a point is within the Sphere of Influence, the distance will be passed thru to scale the circle linearly using the formula Distance / Sphere of Influence Radius.
- If a point is outside the Sphere of Influence, the Sphere of Influence radius will be passed thru, so the formula will be yield the value 1 and the circle will not be scale.
Download Files
Use the Google Drive menu to ZIP the files in this shared folder and download them as a single ZIP file:
