MATLAB Answers

how to save plot handle in an array and delete the plot later?

3 ビュー (過去 30 日間)
roudan
roudan 2021 年 7 月 15 日
コメント済み: Devanuj Deka 2021 年 7 月 16 日
Hi
In my plot, I have 10 plots. I am creating a 1D array using handle_array=zeros(10,1), then later I save ith plot's handle to the array using handle_array(i)=plot_handle. Later I'd like to delete the specific plot using delete(handle_array(ith)), and I got an error of annot access method 'delete' in class 'matlab.ui.Root'.
I found the data saved in the handle array is not a handle and it is just a number.
so how to save the plot handle and delete the plot later? Thanks for your help.

採用された回答

Walter Roberson
Walter Roberson 2021 年 7 月 15 日
handle_array=zeros(10,1)
handle_array = 10×1
0 0 0 0 0 0 0 0 0 0
Do not do that for any modern version of matlab. Instead use
handle_array = gobjects(10,1)
handle_array =
10×1 GraphicsPlaceholder array: GraphicsPlaceholder GraphicsPlaceholder GraphicsPlaceholder GraphicsPlaceholder GraphicsPlaceholder GraphicsPlaceholder GraphicsPlaceholder GraphicsPlaceholder GraphicsPlaceholder GraphicsPlaceholder
  3 件のコメント
roudan
roudan 2021 年 7 月 15 日
Thank you Walter, ishandle() works perfectly! I appreicate your help. It saved me a lot of time! Have a great dat Sir!

サインインしてコメントする。

その他の回答 (1 件)

Devanuj Deka
Devanuj Deka 2021 年 7 月 15 日
編集済み: Devanuj Deka 2021 年 7 月 15 日
I would suggest creating a cell array for handle_array. The function zeros(10,1) creates a 10x1 array of type 'double', which means you cannot store plot handles in it - it will store a numeric value instead of the plot handle.
With cell(sz1,...,szN) you can initialize an array with the same syntax as zeros(10,1), but you can store any data type in these individual cells.
  9 件のコメント
Devanuj Deka
Devanuj Deka 2021 年 7 月 16 日
You're welcome.

サインインしてコメントする。

タグ

製品


リリース

R2020a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by