CPLofgcaborehole090

by Tim C. Lueth, SG-Lib Toolbox: SolidGeometry 5.6 - CPL/Closed Polygon Lists
Introduced first in SolidGeometry 4.7, Creation date: 2019-06-22, Last change: 2025-08-19

returns the contour of the shadow core in view (0,90) from above



See Also: CPLofSGboreholes , CPLofSGhull

Example Illustration

missing image of CPLofgcaborehole090

Syntax

CPL=CPLofgcaborehole090

Output Parameter

CPL: Contour of shadow

Examples


SGsample(25)
CPLofgcaborehole



Copyright 2019-2025 Tim C. Lueth. All rights reserved. The code is the property of Tim C. Lueth and may not be redistributed or modified without explicit written permission. This software may be used free of charge for academic research and teaching purposes only. Commercial use, redistribution, modification, or reverse engineering is strictly prohibited. Access to source code is restricted and granted only under specific agreements. For licensing inquiries or commercial use, please contact: Tim C. Lueth

Algorithm (Workflow)

This function, CPLofgcaborehole090, calculates the contour of the shadow core in a specific view (0,90) from above. It is part of the SolidGeometry library and was introduced in version 4.7.

Input Parameters

Algorithm Steps

  1. Initialize the view angles w and a to 0 and 90, respectively.
  2. Get the current figure handle oh.
  3. Create a new figure nf by copying the current figure, set it to invisible, and configure its properties (color, axis, view).
  4. Capture the frame of the new figure nf using getframe and then delete the figure nf.
  5. Set the axis to equal and tight, adjust the view slightly, and redraw the figure.
  6. Calculate the bounding box bb of the current axis.
  7. Determine the size ss of the bounding box in the x and y dimensions.
  8. Compute the contour CPL from the captured image I using CPLofimage.
  9. Calculate the bounding box cc of the contour CPL.
  10. Determine the size sc of the contour bounding box in the x and y dimensions.
  11. Normalize and scale the contour CPL to fit within the bounding box bb.
  12. Restore the original figure units.
  13. If no output is requested, plot the contour CPL on the original figure oh with specific lighting and view settings.

Output

Algorithm explaination created using ChatGPT on 2025-08-19 07:10. (Please note: No guarantee for the correctness of this explanation)

Last html export of this page out of FM database by TL: 2025-09-21