Graphics Programs Reference
In-Depth Information
Some new data now:
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t = linspace(0,1);
x = humps(t);
y = humps(t.^2)/2;
plot(x,y)
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20
0
0
50
100
The Axes limits have been set to the next round number in the series of
tickmarks.Tochangethescalesothatthedatafillthewholeplot:
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axis tight
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20
10
20
40
60
80
To zoom in on the loop:
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10
axis([10 25 5 12])
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6
10
15
20
25
To zoom back out again:
12
60
40
axis auto
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0
0
50
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Now let us look at some image data:
clf
load clown
image(X)
colormap(map)
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100
150
200
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The
y
-axis here increases from top to bottom: the
ij
axis mode is the
default for images. To get the
y
-axis increasing from bottom to top:
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150
axis xy
100
50
100
200
300
To go back again:
12
Or you can use the
zoom
function, which initiates a mouse-based zoomer.
