Gallery: Axis styles and grids (Python)

Examples

The default plot style is to show all four axes (closed)
The open plot style only displays two axes
The boxed plot style draws a box arount the plot
Numeric labels (ticklabels) on all four axes
Rotating the numbers along an axis
Changing the format used to display the labels
Using sexagesimal notation for the axis labels
Changing the number of major tick marks (using mode=interval)
Changing the number of major tick marks (using mode=count)
Displaying a grid at the major tick mark locations
Add a grid at the major and minor tick mark locations

The default plot style is to show all four axes (closed)

add_curve("atan.fits[cols X,Y]",["symbol.style","none"])

The open plot style only displays two axes

Postscript version

plt = ChipsPlot()
plt.style = "open"
crv = ChipsCurve()
crv.symbol.style = "none"
add_curve("atan.fits[cols X,Y]",[plt,crv])

The boxed plot style draws a box arount the plot

Postscript version

plt = ChipsPlot()
plt.style = "boxed"
crv = ChipsCurve()
crv.symbol.style = "none"
add_curve("atan.fits[cols X,Y]",[plt,crv])

# We hide the axes to show the box surrounding the plot
hide_axis()

set_plot(["leftmargin",0.1,"bottommargin",0.1])

Numeric labels (ticklabels) on all four axes

Postscript version

add_curve("atan.fits[cols X,Y]",["symbol.style","none"])

set_plot(["rightmargin",0.15])

set_axis_ticklabel_offset("all",10)
set_axis_ticklabel_visible("all",1)

Rotating the numbers along an axis

Postscript version

add_curve("aspect.fits[cols ra,dec]",["symbol.style","none"])

set_xaxis(["ticklabel.angle",40.0])
set_axis_ticklabel_offset("ax1",16)

Changing the format used to display the labels

Postscript version

add_curve("aspect.fits[cols time,roll]",["symbol.style","none"])

set_plot(["bottommargin",0.25])

set_yaxis(["tickformat","%.3f"])

set_xaxis(["tickformat","%.5z"])
set_xaxis(["ticklabel.angle",40.0])
set_axis_ticklabel_offset("ax1",30)

set_axis(["ticklabel.fontstyle","bolditalic"])

Using sexagesimal notation for the axis labels

Postscript version

add_curve("aspect.fits[cols ra,dec]",["symbol.style","none"])

set_xaxis(["tickformat","ra"])
set_yaxis(["tickformat","dec"])

Changing the number of major tick marks (using mode=interval)

Postscript version

add_curve("aspect.fits[cols ra,dec]",["symbol.style","none"])

set_xaxis(["majortick.interval",5.0e-3,"majortick.mode","interval"])

ay = ChipsAxis()
ay.majortick.interval = 2.0e-3
ay.majortick.mode = "interval"
ay.minortick.count = 3
set_yaxis(ay)

Changing the number of major tick marks (using mode=count)

Postscript version

add_curve("aspect.fits[cols ra,dec]",["symbol.style","none"])

set_axis(["majortick.count",4,"majortick.mode","count"])

# Override the minortick.count setting for the Y axis
set_yaxis(["minortick.count",3])

Displaying a grid at the major tick mark locations

Postscript version

add_curve("atan.fits[cols X,Y]",["symbol.style","none"])

set_axis(["majorgrid.visible",1,"majorgrid.style","dot"])

Add a grid at the major and minor tick mark locations

Postscript version

crv = ChipsCurve()
crv.symbol.style = "none"
crv.line.thickness = 2
crv.line.color = "red"
add_curve("atan.fits[cols X,Y]",crv)

ax = ChipsAxis()
ax.majortick.mode = "interval"
ax.majortick.interval = 10.0
ax.minortick.count = 1
set_xaxis(ax)
ay = ChipsAxis()
ay.majortick.mode = "interval"
ay.majortick.interval = 1.5
ay.minortick.count = 2
set_yaxis(ay)
set_axis(["majorgrid.visible",1,"minorgrid.visible",1])

limits(Y_AXIS,-1.6,1.6)