MATLAB POLYSPACE RELEASE NOTES Manuel d'utilisateur télécharger pdf (Page 110)

3 Graphics

draws a 20-sided polygon with little circles at the vertices. The axis equal

command makes the individual tick-mark increments on the x-andy-axes the

same length, which makes this plot more circular in appearance.

Adding P

lots to an Existing Graph

The hold

command enables you to add plots to an existing graph. When

you type

hold on

MATLAB does not replace the existing graph when you issue another p lotting

command; it adds the new data to the current graph, rescaling the axes

if necessary.

For exam ple, these statements first create a contour plot of the

peaks

function, then superimpose a pseudocolor plot of the same function:

[x,y,z] = peaks;

pcolor(x,y,z)

shading interp

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MATLAB POLYSPACE RELEASE NOTES Manuel d'utilisateur Page 110