Using MATLAB offline converter on a specific 3D data results in incorrect scatter (2d) traces

Hello,

I am using MATLAB-Online project to convert several types of MATLAB figures.

When converting offline a specific data file, I got a problem. The data output contains correct scatter3d traces and some incorrect scatter (2d) traces.

The conversion seems to generate scatter (2d) when all the points are null.

Here is the demo data I was using:
S0307904X13006549_mmc3.fig.zip

Here is an extract of the data output:

{"xaxis": "x1", "yaxis": "y1", "type": "scatter3d", "visible": true, "x": [null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, 5.63689383869668, 5.64508977832848, 5.65341212279236, 5.66186758105614, 5.67046301659407, 5.67920545270251, 5.68810207811812, 5.6971602529484, 5.70638751492477, 5.71579122660169, 5.72537061117376, 5.73511647921464, 5.74501900827905, 5.75506808766196, 5.76525330686215, 5.77556394482557, 5.78598896000782, 5.79651698129621, 5.80713629983312, 5.81783486178309, 5.82860119863198, 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6.31607876049659, 6.32265678523466, 6.32931054457722, 6.33603463644034, 6.3428235908676, 6.34967186835346, 6.35657385831332, 6.36352387770268, 6.37051616978808, 6.37754490307229, 6.38460417203401, 6.39168965083804, 6.39880173648656, 6.40594168679499, 6.41311077454258, 6.42031028758959, 6.42754152900108, 6.43480581717726, 6.44210448599049, 6.44943888492919, 6.45681037924859, 6.46422035012848, 6.4716701948381, 6.47916132690821, 6.48669517631051, 6.49427318964444, 6.50189683033155, 6.50956757881745, 6.51728693278158, null, null, null, null], "y": [null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, 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{"xaxis": "x1", "yaxis": "y1", "type": "scatter", "visible": true, "x": [null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null], "y": [null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null], "mode": "lines", "showlegend": true}

This issue was related to PlotyJS issue: https://github.com/plotly/plotly.js/issues/1272.

Thanks for your help !

Bắt đầu bằng cách tái hiện quá trình chuyển đổi offline với dữ liệu demo được liên kết S0307904X13006549_mmc3.fig.zip và so sánh các trace scatter3d và scatter được tạo ra với issue PlotlyJS liên quan. Hoàn thành khi bộ chuyển đổi không còn phát ra các trace scatter 2D không chính xác cho những điểm có tất cả giá trị là null, đồng thời vẫn giữ nguyên các trace 3D hợp lệ.