Opened 14 years ago

Closed 11 years ago

#91 closed feature (fixed)

2D resolution calculations

Reported by: srkline Owned by: srkline
Priority: major Milestone: Wish List
Component: Analysis Keywords:
Cc: Blocking:
Task:

Description

As a first pass, use symmetric resolution (excluding gravity), then a 2D Gaussian can be convolved with the model using some sort of Igor built-in function.

Gravity would be more of a mess to add in, but there must be some way of casting it into a simpler problem...

Change History (6)

comment:1 Changed 14 years ago by srkline

In principle, I've got the necessary equations from David. All that is to do is some sane implementation. Quadrature (even 5x5) makes the calculation 25x slower!!!. Try to look for an approximation that allows us to use an "Image..." Igor function, or write an XOP to do the calculation (messy Xfunc calling Xfunc).

comment:2 Changed 14 years ago by srkline

  • Milestone Analysis 4.0 Release deleted

Important, but more work needs to be done than time permits before release. Table for now.

comment:3 Changed 14 years ago by srkline

  • Milestone set to Analysis Wish List

comment:4 Changed 12 years ago by ajj

  • Milestone changed from Analysis Wish List to Wish List

comment:5 Changed 11 years ago by srkline

mostly done. Use the full resolution function, including gravity. 10x10 quadrature is sufficient for the test cases I've run. I'm integrating in (parallel,perpendicular) coordinates at each point, rather than casting into XY. Takes about 10s for the whole detector on a slow machine (1GHz, 2 processor). Should be sufficiently fast on a modern computer.

needs just a little more testing and documentation

comment:6 Changed 11 years ago by srkline

  • Resolution set to fixed
  • Status changed from new to closed

I think we're done here. Testing and actual use will tell if there are any issues.

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