taskGNU Astronomy Utilities - Tasks: task #13658, Work on concave polygons too

 
 

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task #13658: Work on concave polygons too

Submitted by:  Mohammad Akhlaghi <makhlaghi>
Submitted on:  Thu 25 Jun 2015 02:44:12 AM UTC  
 
Should Start On:  Wed 24 Jun 2015 03:00:00 PM UTC Should be Finished on:  Wed 24 Jun 2015 03:00:00 PM UTC
Category:  Crop Priority:  5 - Normal
Item Group:  New feature Status:  Postponed
Privacy:  Public Percent Complete:  0%
Assigned to:  None Open/Closed:  Open
Effort:  0.00

Sun 22 Jan 2017 04:50:51 PM UTC, comment #1:

Also see, bug #50120 (Print an error when polygon is concave).

Mohammad Akhlaghi <makhlaghi>
Project Administrator
Thu 25 Jun 2015 02:44:12 AM UTC, original submission:

Currently the function to sort the vertices of the polygon (orderedpolygoncorners in lib/polygon.c) only works on convex polygons. Because it was originally designed for ImageWarp where we won't be dealing with concave polygons.

Write a function that is able to sort the polygon edges correctly even if the polygon is concave and use that function for the polygon mode of ImageCrop.

Mohammad Akhlaghi <makhlaghi>
Project Administrator

 

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