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Displaying the label/text in canvas for polyline figure [message #1816047]

Fri, 18 October 2019 03:41

Naveen R

Messages: 7
Registered: May 2019

Junior Member

Hi,

We have a straight line i.e a polyline figure having a property name that needs to be displayed in the canvas as a label or text next to it.

[Updated on: Fri, 18 October 2019 04:14]

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Re: Displaying the label/text in canvas for polyline figure [message #1816049 is a reply to message #1816047]

Fri, 18 October 2019 04:35

Matthias Wienand

Messages: 230
Registered: March 2015

Senior Member

Hi Naveen,

the general approach is to have a controller (ContentPart or EditPart for GEF-Legacy) that displays the label. You can have a look at how Zest.FX handles this for GEF, or how GMF handles this for GEF-Legacy.

Best regards,
Matthias

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Re: Displaying the label/text in canvas for polyline figure [message #1816090 is a reply to message #1816049]

Mon, 21 October 2019 04:17

Naveen R

Messages: 7
Registered: May 2019

Junior Member

Hi Matthias,

To Display labels for polyline in canvas, the following steps were followed.

1. Created the label and added as a child figure to the polyline figure.
2. The polyline figure layout is set to XYLayout.
3. In the editing part for the label, the layout constraint is set.
4. Now the label is displayed for the polyline figure on the canvas.

But the problem is the label is not properly displayed if the polyline figure is at a specific angle of 180 degrees and 90 degrees as shown in the below image.

index.php/fa/36621/0/