Jonathan Helfman’s notebooks | Observable

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Jonathan Helfman’s notebooks | Observable

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Hard to be Normal

Jonathan Helfman

Jan 30, 2025

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Tick labels on small plots with discrete scales

Jonathan Helfman

Jan 23, 2025

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Three.js Clip-Plane Intersection

Jonathan Helfman

Oct 19, 2023

2

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Plot guitar fretboard

Jonathan Helfman

Mar 30, 2025

15

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Plot tooltip formatting for small values

Jonathan Helfman

Aug 27, 2023

1

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Plot Bin sum reducer bugs?

Jonathan Helfman

Aug 4, 2023

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Simplex Noise 1D utilities

Jonathan Helfman

Aug 3, 2023

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Selectable colorspace images

Jonathan Helfman

Jul 29, 2023

3

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Combining two colors with alpha

Jonathan Helfman

Aug 25, 2023

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Simplex Noise Radial Transform

Jonathan Helfman

Jul 9, 2023

4

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Faker image mix

Jonathan Helfman

Jul 3, 2023

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Faker distinct values

Jonathan Helfman

Jul 3, 2023

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Simplex Noise 1D

Jonathan Helfman

Jul 5, 2023

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Histogram bin width vs content frequency

Jonathan Helfman

Jun 20, 2023

1

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Comparing Binned Distributions

Jonathan Helfman

Jun 6, 2023

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Plot bug for grid line color?

Jonathan Helfman

May 30, 2023

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Jonathan Helfman

May 7, 2023

6

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Jonathan Helfman

May 7, 2023

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Simple emergent structure

Jonathan Helfman

Apr 22, 2023

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Plot bug with tick labels?

Jonathan Helfman

May 30, 2023

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Hello multi-range-slider

Jonathan Helfman

Apr 7, 2023

1

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Generate Noisy Time Series Data

Jonathan Helfman

Aug 11, 2023

2

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Three.js image texture and displacement map

Jonathan Helfman

Sep 2, 2025

1

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White's Stimulus

Jonathan Helfman

Sep 6, 2022

1

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Sine Offset Colorings

Jonathan Helfman

Aug 27, 2022

1

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Amplifier Compression Data

Jonathan Helfman

Nov 12, 2021

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Reusable ThreeJS Grid

Jonathan Helfman

Nov 12, 2021

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Amplifier Simulation Data

Jonathan Helfman

Oct 22, 2021

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Colormap Octave Effect

Jonathan Helfman

Oct 19, 2021

5

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Combining two images with a luminance mask

Jonathan Helfman

Sep 12, 2021

3

1

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Image Brightness to Alpha Mask

Jonathan Helfman

Sep 12, 2021

4

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Driving texgen with generators

Jonathan Helfman

Sep 6, 2021

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Color Generator Function HSL

Jonathan Helfman

Sep 6, 2021

1

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Color Generator Function JCh

Jonathan Helfman

Sep 6, 2021

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Value Generator Function

Jonathan Helfman

Apr 20, 2023

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Threejs Canvas Texture Image Chopper 2

Jonathan Helfman

Sep 2, 2021

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Threejs Canvas Texture Image Chopper Z-Brightness

Jonathan Helfman

Aug 29, 2021

1

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Threejs Canvas Texture Image Chopper

Jonathan Helfman

Aug 29, 2021

4

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Threejs Canvas Texture Image Atlas

Jonathan Helfman

Aug 28, 2021

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Hello Threejs Canvas Texture

Jonathan Helfman

Aug 21, 2021

3

1