Scilab 5.3.0
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function
is_handle_valid
Check wether a set of graphic handles is still valid.
Calling Sequence
isValid = is_handle_valid(h)
Arguments
- h
Matrix of graphic handles
- isValid
Matrix of boolean with the same size as
h
Description
is_handle_valid function tests wether a set of graphic handle
is still valid. A valid handle is a handle which has not been deleted.
The result, isValid, is a boolean matrix such as
isValid(i,j) is true if
h(i,j) is valid and false otherwise.
Examples
// check that current objects are valid is_handle_valid([gcf(), gca(), gce()]) // create 11 polylines plot([0:10; 0:10; 0:10], [0:10; 0:0.5:5; 0:2:20]); // check polylines validity axes = gca(); polylines = axes.children(1).children is_handle_valid(polylines) // delete some polylines delete(polylines(3:7)); // print validity is_handle_valid(polylines)
See Also
Authors
Jean-Baptiste Silvy INRIA
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