MaterialPointVisualizer.jl

Appearance

GUI ​

Info

Sometimes we already have data in Julia and just want to see the results without exporting it to other software for visualization, which is too troublesome...😢

This implementation is achieved through MeshCat.jl, which provides an interactive 3D visualization viewer accessible through a standard web browser.

MaterialPointVisualizer.vispts Method
julia
vispts(raw_pts::Array{<:Real, 2}; markersize::Real=0.002, cval::Vector{<:Real}=Float32[], colormap::ColorScheme=ColorSchemes.jet)

Visualize 3D or 2D point cloud using MeshCat interactive viewer.

Arguments

  • raw_pts::Array{<:Real, 2}: Nx2 or Nx3 array where each row contains the coordinates [x, y] or [x, y, z] of a point.

  • markersize::Real=0.002: Size of the point markers in the visualization.

  • cval::Vector{<:Real}=Float32[]: Values for coloring each point. If empty, all points use the default color from colormap.

  • colormap::ColorScheme=ColorSchemes.jet: ColorScheme object from ColorSchemes.jl for mapping values to colors.

Returns

  • vis::Visualizer: A MeshCat Visualizer object that can be displayed interactively.

Examples

julia
# Visualize random 3D points
pts = rand(10000, 3)
vis = vispts(pts)

# Visualize with color values
vals = rand(10000)
vis = vispts(pts, cval=vals, colormap=ColorSchemes.viridis, markersize=0.001)

# Visualize 2D points (will be converted to 3D with z=0)
pts_2d = rand(5000, 2)
vis = vispts(pts_2d)
source

Quick Start ​

Visualize Point Cloud ​

julia
using MaterialPointVisualizer

# Create random points
pts = rand(10000, 3)

# Visualize with default settings
vis = vispts(pts)

Add Color by Values ​

julia
# Create points and corresponding values
pts = rand(10000, 3)
vals = rand(10000)

# Visualize with color mapping
vis = vispts(pts, cval=vals, colormap=ColorSchemes.viridis, markersize=0.001)

Visualize 2D Points ​

julia
# 2D points are automatically converted to 3D (z=0)
pts_2d = rand(5000, 2)
vis = vispts(pts_2d, markersize=0.005)

Browser Display ​

The visualization opens in your default web browser. You can interact with the viewer using:

  • Mouse drag: Rotate the view

  • Mouse scroll: Zoom in/out

  • Right-click drag: Pan the view