MATLAB POLYSPACE RELEASE NOTES Manuel d'utilisateur télécharger pdf (Page 134)

3 Graphics

surf(x,y,z,'FaceColor','interp',. ..

'FaceLighting','gouraud')

plots the data in the variables x, y,andz using a surfaceplot object with

interpolated face color and employing the Gouraud face light technique. You

can set any of the object’s properties this way.

Setting Properties of Existing Objects

To modify the property values of existing objects, y ou can use the set

command or the Property Editor. This s ection describes how to use the set

command. See “Us ing the Property Editor” on page 3-18 for more information.

Most plotting functions return the handles of the objects that they create

so you can modify the objects usin g the

set command. For example, the se

statements plot a 5-by-5 matrix (creating five lineseries, one per column), and

then set the

Marker property to a square and the Mar kerF aceColor property

to green:

h = plot(magic(5));

set(h,'Marker','s','MarkerFaceColo r','g')

In this case, h is a vector containing five handles, one for each of the

five lineseries in the graph. The

set statement sets the Marker and

MarkerFaceColor properties of all lineseries to the same values.

Setting Multiple Property Values

If you want to set the p ropertie s of each line series to a differe nt v alue, you

can use cell arrays to store all the data and pass it to the

set command. For

example, create a plot and save the linese ries handles:

h = plot(magic(5));

Suppose you want to add different markers to each lineseries and color the

marker’s face color the same color as the lineseries. You need to define two

cell arrays—one containing the property names and the other containing

the desired values of the properties.

The

prop_name cell array contains two elements:

prop_name(1) = {'Marker'};

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MATLAB POLYSPACE RELEASE NOTES Manuel d'utilisateur Page 134