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Meeting Minutes

Clare DuVal edited this page Jul 16, 2019 · 8 revisions

July 16, 2019

Notes:

  • More slight debugging
  • Validate files, check
  • Sanity check (unit test) with rotations and translations applied to randomly selected pcpds point cloud
  • Add noise to all points in a selection and try to compare

Next week: Begin sliding points bin

  • Expect to break
  • Lose epsilon from left, gain epsilon from right
  • How quickly the accuracy gets worse/better with the bigger the epsilon

July 9, 2019

Notes:

  • Only break up x and y linearly, NOT z
  • Test against other lidar files
  • Check how many points are in a diagram
  • Check issue with multiple zeros (not more than one bottleneck should be zero)
  • Make sure image is not 2D, if is reevaluate using Rips, if so height filtration
  • Crust, power-crust
  • Find 3D lidar data, test
  • PyViz, "C born"?, PPTK**, some other data point visualization tool
  • Focus on read/write/view windows

July 2, 2019

Dave's Logistical Notes:

  • Reorganize files in folders, group modules
  • Remove pip install
  • Encode dependencies in requirements.txt file
  • Update by Wednesday, July 3rd to meet on Friday, 5th

June 11, 2019

Notable Points:

  • Percentage length of boxes, rectangular prism
  • Shingling, moving window
  • Boxed representations, splitting boxes down
  • Focus on base code, then implement boxes
  • Ignore edge cases for now
  • Test exact, slight coordinate slide, then rotate

First thing to do: Split Yellowstone data set by i,j,k splits.

Start with smallest data set.

June 5, 2019

To Do:

  • Usable data
  • Find Python Libraries for
  • Anaconda
  • Reading in .Las files, optimal with library capable of other transformations
  • Numpy
  • Generating persistence diagrams
  • Dionysus
  • Setup github pages

Goal next week: Solid platform and establishing a workflow

Begin data processing:

  • Read las files into objects - transform into x, y, z
  • Split the information into sections, grid with variable passing into the main
  • Scale parameter, absolute parameter
  • Overwriting the method to use, or use separate functions
  • Process sections into objects (may do this earlier) - save this data for holding
  • Persistence diagrams with x, y, z coordinate
  • Store in the persistence diagram
  • Store “PCPDS” object as json files