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

Thu, 17 October 2019 23:41

Eclipse User

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 00:14] by Moderator

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

Fri, 18 October 2019 00:35

Eclipse User

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

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

Mon, 21 October 2019 00:17

Eclipse User

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/