Graphics Quick Start

Get started with 2D graphics and plotting in XDL.

For the complete guide, see QUICKSTART_GRAPHICS.

Basic Plotting 

; Create data
x = findgen(100)
y = sin(x * !pi / 50)

; Simple plot
plot, x, y

; Plot with title and labels
plot, x, y, title='Sine Wave', xtitle='X', ytitle='Y'

Multiple Plots 

; Multiple curves on one plot
x = findgen(100)
y1 = sin(x * !pi / 50)
y2 = cos(x * !pi / 50)

plot, x, y1, color='blue', title='Trig Functions'
oplot, x, y2, color='red'

Scatter Plots 

; Scatter plot
x = randomn(100)
y = randomn(100)
plot, x, y, psym=3

Histograms 

; Create histogram
data = randomn(1000)
hist = histogram(data, nbins=50)
plot, hist

Contour Plots 

; 2D contour plot
x = findgen(50)
y = findgen(50)
z = sin(x/5) # cos(y/5)
contour, z

Saving Plots 

; Save plot to file
plot, x, y
save_plot, 'myplot.png'

Next Steps