Do we have any event to track annotation resize? - Need to get current selected annotation width and height on resize in html5/typescript

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#1 Posted : Friday, November 20, 2020 7:47:42 AM(UTC)

selvakumar

Groups: Registered
Posts: 9

I want to get the current width and height of the annotation each time when the user change the size by using dragging the control points.


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#2 Posted : Friday, November 20, 2020 9:16:32 AM(UTC)

Matthew Bresson

Groups: Registered, Tech Support, Administrators
Posts: 98

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Hello Selvakumar,

You should be able to use the AfterObjectChanged event inside the AnnAutomation class.
https://www.leadtools.co...nautomation--events.html
This event should be triggered after the given AnnObject has changed.

Another option you can look into are the OnPointer'' methods that are in the AnnDesigner and AnnEditDesigner classes that handle the pointer events.
https://www.leadtools.co...nndesigner--members.html
https://www.leadtools.co...itdesigner--members.html

If you have any questions about the above information please feel free to reach back out to us.

Thanks,

Matt Bresson
Developer Support Engineer
LEAD Technologies, Inc.

#3 Posted : Sunday, November 22, 2020 6:52:15 AM(UTC)

selvakumar

Groups: Registered
Posts: 9

Hello Mathew,

Your suggestion sounds helpful. But AfterObjectChanged event will be triggered on moving the object and other changes related to object property right, can we able to filter out only while resize?
I have checked in this link "https://www.leadtools.com/help/sdk/v20/dh/aa/annobjectchangedtype.html", I don't find any enum value specific to annotation resize. Any other solution for this?

Thanks for your support in advance.

#4 Posted : Sunday, November 22, 2020 6:56:29 AM(UTC)

Hadi

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Posts: 218

Was thanked: 12 time(s) in 12 post(s)

You can use the Edit event from the Automation:

https://www.leadtools.co.../annautomation-edit.html

This event has an Operation property in the EventArgs that lets you filter out specific events that you are wanting:

https://www.leadtools.co...itdesigneroperation.html

You will want to filter on the MoveThumb operation to get resize's

Hadi Chami
Developer Support Manager
LEAD Technologies, Inc.

#5 Posted : Sunday, November 22, 2020 9:40:27 AM(UTC)

selvakumar

Groups: Registered
Posts: 9

Thanks Hadi, I think this would help. Thank you so much.

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