MATLAB POLYSPACE RELEASE NOTES Bedienungsanleitung PDF herunterladen (Seite 138)

3 Graphics

are more than one. The following four sections provide examples illustrating

how to use

findobj.

Finding All Objects of a Certain Type

Because all objects have a Type property that identifies the type of object,

you can find the handles of all occurrences of a particular type of object. For

example,

h = findobj('Type','p atch');

finds the handles of all patch objects.

Finding Objects with a Particular Property

You can specify multiple properties to narrow the search. For example,

h = findobj('Type','l ine','Color','r','Li neStyle',':');

finds the handles of all red dotted lines.

Limiting the Scope of the Search

You can specify the starting point in the object hierarchy by passing the

handle of the starting figure or axes as the first argument. For example,

h = findobj(gca,'Type ','text','String','\ pi/2');

finds the string π/2 only within the current axes.

Using findobj as an Argument

Because findobj returns the handles it finds, you can use it in place of the

handle argument. For example,

set(findobj('Type','line','Color' ,'red'),'LineStyle', ':')

finds all re d l ines and sets t h e i r line style to dotted .

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MATLAB POLYSPACE RELEASE NOTES Bedienungsanleitung Seite 138