I understand that you are trying to plot a large number of 2D contours in a 3D plot can be computationally intensive, especially when dealing with 200,000 points. Using fill3 repeatedly is not optimal. Instead, consider using patch or surf with vectorized operations to improve performance. Here are some strategies to optimize your plotting:
Strategies for Faster 3D Contour Plotting:
1 Use patch with Vectorization:
% Example data setup
numRects = 50000; % Number of rectangles
X = rand(4, numRects); % X-coordinates
Y = rand(4, numRects); % Y-coordinates
Z = rand(4, numRects); % Z-coordinates
C = rand(1, numRects); % Color data
% Single patch object
figure;
patch('XData', X, 'YData', Y, 'ZData', Z, 'FaceVertexCData', C, ...
'FaceColor', 'flat', 'EdgeColor', 'none');
colormap(yourCustomColormap); % Use your custom colormap
colorbar;
2. Use surf for Grids:
% Grid data example
[X, Y] = meshgrid(linspace(0, 1, 100));
Z = peaks(100); % Example Z data
C = rand(size(Z)); % Color data
% Plot with surf
figure;
surf(X, Y, Z, C, 'EdgeColor', 'none');
colormap(yourCustomColormap);
colorbar;
3. Reduce Data Resolution:
% Downsample data
X = X(:, 1:10:end);
Y = Y(:, 1:10:end);
Z = Z(:, 1:10:end);
C = C(:, 1:10:end);
4.Optimize Rendering:
- Use OpenGL: set(gcf, 'Renderer', 'OpenGL');
- Adjust figure properties: set(gca, 'SortMethod', 'childorder');
I hope this helps!
