def time_basic_plot_with_grid_and_overlay():
fig = Figure()
canvas = FigureCanvas(fig)
ax = WCSAxes(fig, [0.15, 0.15, 0.7, 0.7], wcs=MSX_WCS)
fig.add_axes(ax)
ax.grid(color='red', alpha=0.5, linestyle='solid')
ax.set_xlim(-0.5, 148.5)
ax.set_ylim(-0.5, 148.5)
overlay = ax.get_coords_overlay('fk5')
overlay.grid(color='purple', ls='dotted')
canvas.draw()
def test_coords_overlay(self):
# Set up a simple WCS that maps pixels to non-projected distances
wcs = WCS(naxis=2)
wcs.wcs.ctype = ['x', 'y']
wcs.wcs.cunit = ['km', 'km']
wcs.wcs.crpix = [614.5, 856.5]
wcs.wcs.cdelt = [6.25, 6.25]
wcs.wcs.crval = [0., 0.]
fig = plt.figure(figsize=(4, 4))
ax = WCSAxes(fig, [0.15, 0.15, 0.7, 0.7], wcs=wcs)
fig.add_axes(ax)
s = DistanceToLonLat(R=6378.273)
ax.coords['x'].set_ticklabel_position('')
ax.coords['y'].set_ticklabel_position('')
coord_meta = {}
coord_meta['type'] = ('longitude', 'latitude')
coord_meta['wrap'] = (360., None)
coord_meta['unit'] = (u.deg, u.deg)
coord_meta['name'] = 'lon', 'lat'
overlay = ax.get_coords_overlay(s, coord_meta=coord_meta)
overlay.grid(color='red')
overlay['lon'].grid(color='red', linestyle='solid', alpha=0.3)
overlay['lat'].grid(color='blue', linestyle='solid', alpha=0.3)
overlay['lon'].set_ticklabel(size=7, exclude_overlapping=True)
overlay['lat'].set_ticklabel(size=7, exclude_overlapping=True)
overlay['lon'].set_ticklabel_position('brtl')
overlay['lat'].set_ticklabel_position('brtl')
overlay['lon'].set_ticks(spacing=10. * u.deg)
overlay['lat'].set_ticks(spacing=10. * u.deg)
ax.set_xlim(-0.5, 1215.5)
ax.set_ylim(-0.5, 1791.5)
return fig
def test_coords_overlay(self):
# Set up a simple WCS that maps pixels to non-projected distances
wcs = WCS(naxis=2)
wcs.wcs.ctype = ['x', 'y']
wcs.wcs.cunit = ['km', 'km']
wcs.wcs.crpix = [614.5, 856.5]
wcs.wcs.cdelt = [6.25, 6.25]
wcs.wcs.crval = [0., 0.]
fig = plt.figure(figsize=(4, 4))
ax = WCSAxes(fig, [0.15, 0.15, 0.7, 0.7], wcs=wcs)
fig.add_axes(ax)
s = DistanceToLonLat(R=6378.273)
ax.coords['x'].set_ticklabel_position('')
ax.coords['y'].set_ticklabel_position('')
coord_meta = {}
coord_meta['type'] = ('longitude', 'latitude')
coord_meta['wrap'] = (360., None)
coord_meta['unit'] = (u.deg, u.deg)
coord_meta['name'] = 'lon', 'lat'
overlay = ax.get_coords_overlay(s, coord_meta=coord_meta)
overlay.grid(color='red')
overlay['lon'].grid(color='red', linestyle='solid', alpha=0.3)
overlay['lat'].grid(color='blue', linestyle='solid', alpha=0.3)
overlay['lon'].set_ticklabel(size=7, exclude_overlapping=True)
overlay['lat'].set_ticklabel(size=7, exclude_overlapping=True)
overlay['lon'].set_ticklabel_position('brtl')
overlay['lat'].set_ticklabel_position('brtl')
overlay['lon'].set_ticks(spacing=10. * u.deg)
overlay['lat'].set_ticks(spacing=10. * u.deg)
ax.set_xlim(-0.5, 1215.5)
ax.set_ylim(-0.5, 1791.5)
return fig
def test_coords_overlay_auto_coord_meta(self):
fig = plt.figure(figsize=(4, 4))
ax = WCSAxes(fig, [0.15, 0.15, 0.7, 0.7], wcs=WCS(self.msx_header))
fig.add_axes(ax)
ax.grid(color='red', alpha=0.5, linestyle='solid')
overlay = ax.get_coords_overlay('fk5') # automatically sets coord_meta
overlay.grid(color='black', alpha=0.5, linestyle='solid')
overlay['ra'].set_ticks(color='black')
overlay['dec'].set_ticks(color='black')
ax.set_xlim(-0.5, 148.5)
ax.set_ylim(-0.5, 148.5)
return fig
def test_coords_overlay_auto_coord_meta(self):
fig = plt.figure(figsize=(4, 4))
ax = WCSAxes(fig, [0.15, 0.15, 0.7, 0.7], wcs=WCS(self.msx_header))
fig.add_axes(ax)
ax.grid(color='red', alpha=0.5, linestyle='solid')
overlay = ax.get_coords_overlay('fk5') # automatically sets coord_meta
overlay.grid(color='black', alpha=0.5, linestyle='solid')
overlay['ra'].set_ticks(color='black')
overlay['dec'].set_ticks(color='black')
ax.set_xlim(-0.5, 148.5)
ax.set_ylim(-0.5, 148.5)
return fig