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* utils/grid.py: JIT optimize "make_grid_ellipse()"Aaron LI2016-10-261-10/+15
| | | | NOTE that the original optional paramter "rotation" is now required.
* utils/grid.py: Use own-implemented JIT-optimized "rotate_center()"Aaron LI2016-10-261-3/+3
| | | | Also remove the dependence on "scipy".
* grid.py: Override "make_coordinate_grid()" using JIT-optimized versionAaron LI2016-10-251-46/+2
| | | | | Remove the original "make_coordinate_grid()" function, and rename the "make_coordinate_grid_fast()" to override the former one.
* grid.py: Change "make_coordinate_grid_fast()" parametersAaron LI2016-10-251-11/+16
| | | | | Change the parameters of "make_coordinate_grid_fast()", make it share the same parameter list as "make_coordinate_grid()".
* grid.py: Optimize "map_grid_to_healpix()" using "numba.jit"Aaron LI2016-10-251-11/+19
| | | | | There are some limitations with the numba JIT, which are commented in the code.
* utils/grid.py: Add optimized "make_coordinate_grid_fast()"Aaron LI2016-10-251-4/+56
| | | | | | | | Optimize "make_coordinate_grid()" using "numba.jit", which improves the speed a bit, since the other two functions (i.e., "make_grid_ellipse()", and "map_grid_to_healpix()") are much slow and time-consuming. TODO: optimize "make_grid_ellipse()" and "map_grid_to_healpix()"
* galactic/snr.py: Implemented missing but necessary functionalitiesAaron LI2016-10-171-1/+1
| | | | | | | | The necessary but missing functionalities to simulate the Galactic SNRs emission maps are implemented, and this new emission component is ready for testing. Also fix a typo in "utils/grid.py".
* utils/grid.py: Implement "map_grid_to_healpix()"Aaron LI2016-10-171-9/+29
| | | | | | | | The "map_grid_to_healpix()" maps the generated coordinate grid to a HEALPix map. Note that only effective HEALPix pixels are returned instead of a full HEALPix map. TODO: Try to avoid the explicit for loop to optimize the speed.
* Add utils/grid.py: Make coordinate grids for SNRsAaron LI2016-10-171-0/+157
* make_coordinate_grid(): Make a Cartesian coordinate grid according to the specified center coordinate, size and grid resolution. * make_grid_ellipse(): Also generate an (rotated) ellipse and place into the coordinate grid.