I have 3d points and I should determine a method to produce and visualize a "center line" down the central axis
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Load and visualize the file data (attached). This is data cloud of 3d points . You will want to examine the first "field" coordinates associated with each "node"(x,y,z). The units are in mm. Load the second field "error". Determine a method to produce and visualise a "center line" down the central axis of figure. Determine a method to calculate the radius/diameter of the figure at a number of points down this center line. Provide an estimate of the overall figure "length" and "volume".
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jonas
2018 年 8 月 8 日
What is going on in this thread. Are you trying to delete the question? It's not very polite when Image Analyst gave you so much help.
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Image Analyst
2018 年 8 月 1 日
I'd use plot3() to plot the points. Then I'd use pca() to find the central principal component axes, then use plot3() again to plot those axes through the points.
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Image Analyst
2022 年 3 月 28 日
@jordan Ashton, start a new question with your code, data, and a screenshot.
jordan Ashton
2022 年 3 月 28 日
@Image Analyst Okay. Link to question: https://www.mathworks.com/matlabcentral/answers/1682859-find-radius-of-xyz-data
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