4.10. - Four-Circle Functions
You can access the four-circle calculations through spec's user-hook routine
calc().
The table below summarizes
the calculations available.
| Function | Alias | Description |
|
|
||
calc(1) |
calcA | Calculate motor positions for current H K L. |
calc(2) |
calcHKL | Calculate H K L for motor positions in A[]. |
calc(4) |
calcG | Recalculate orientation matrix. |
calc(4,1) |
USER_UB | Returns 0, 1 or 2 if UB is from reflections, entered direcly or a result of fitting. |
calc(5) |
calcZ | Calculate χ and φ for zone feature. |
calc(7,0) |
calcD | Calculate direct lattice from reciprocal parameters. |
calc(7,1) |
calcR | Calculate reciprocal lattice from direct parameters. |
calc(8) |
calcE | Calculate λ for current monochromator positions. |
calc(9) |
calcM | Calculate monochromator position for current λ. |
calc(10) |
_begUB | Initialize sums for fitting UB. |
calc(11) |
_addUB | Add a reflection to fitting sums. |
calc(12) |
_fitUB | Fit UB. |
calc(13) |
calcL | Calculate lattice parameters from UB. |