How can share the handles variable between two skripts?
显示 更早的评论
My question ist:
1) i have created a panel with text in a skript
str_velocity = "%.2f km/h";
vxvRef= 0;
handles.str_velocity = sprintf(str_velocity, vxvRef);
if ~isempty(vxvRef)
uicontrol(handles.vehicleData, 'Style','text','Position', [148 -12 87 100], 'String',handles.str_velocity,'FontSize',11);
end
2) In another skript i have:
vxvRef= 3;
% try to acces the handles.str_velocity and update the new vxvRef into handles.str_velocity to show this in the panel
set(handles.vehicleData,'String',vxRef)
it showed me an error. How can I share the handles variable between two skripts and is my approach right ? Thanks
4 个评论
Luna
2019-2-5
Share your entire code, and the error message so that we can help you.
Mai Le Thai
2019-2-5
If you run multiple scripts in sequence from the same workspace and subsequent scripts after the first don't have the deadly
clear all
or its cohorts then you will have access in subsequent scripts to anything you created in previous ones.
I would not recommend this method of programming though. You should use functions to encapsulate code and input and output arguments as appropriate to allow data to pass into and out of the workspace of each function.
Mai Le Thai
2019-2-5
采纳的回答
If they are scripts, they should be created as methods of a class which is abstracted from handle superclass.
classdef MyClass < handle
properties
prop1
prop2
prop3
end
methods
function obj = MyClass
obj.prop1 = uicontrol (.. 'Style','text',..);
obj.prop2 = uicontrol (..'Style','pushbutton','Callback',@obj.ButtonPushedCallback);
obj.prop3 = 500 % some velocity or other values
end
function textChange(obj,source,event)
% obj is MyClass object
% source is text object
% event is the event indicates any action taken
obj.prop1.String = 'NewString';
% You can also change text element string with using source object
% source.String = 'NewString';
end
function ButtonPushedCallback(obj,source,event)
% obj is MyClass object
% source is pushbutton object
% event is the event indicates that button pressed
obj.textChange; % calls the text change function above
end
end
end
% You can reach all properties in all methods defined in this class with obj.property notation.
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