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Drawing on the WebGMap

Printed From: TMS Software
Category: FMX Components
Forum Name: FMX WebGMaps / WebOSMaps
Forum Discription:
URL: http://www.tmssoftware.com/site/forum/forum_posts.asp?TID=12993
Printed Date: 19 Aug 2019 at 5:50am


Topic: Drawing on the WebGMap
Posted By: Hammer Řyvind
Subject: Drawing on the WebGMap
Date Posted: 08 Feb 2019 at 10:40pm
Has anyone managed to draw on top of the map with standard FMX canvas methods (DrawLine etc.)? I would like to draw things that are not possible with just the Google Map polygons, markers etc.

I have tried drawing directly on the canvas of the WebGMap component, but nothing is visible. I have also tried to put an Imagecontrol on top of the WebGMap, but that doesn't show either.

(By the way, a LatLon to XY function would be very useful for such drawing).

Thanks a lot!!



Replies:
Posted By: Pinarbasi Berk
Date Posted: 09 Feb 2019 at 11:32am
Did you try to polylines?

In this pdf, http://www.tmssoftware.biz/Download/Manuals/TMSFMXWebGMapsDevGuide.pdf
on page 43, you can see how you can draw lines.


Posted By: Hammer Řyvind
Date Posted: 09 Feb 2019 at 6:36pm
Thanks, but polylines are not enough for my application. I would like to draw things like ellipses, Bezier curves, text, etc., so I would need the whole set of FMX canvas methods. Is there a clever trick?


Posted By: Bart Holvoet
Date Posted: 11 Feb 2019 at 8:38am
Hi,

Unfortunately there is currently no built-in functionality available to draw on the map except for Polygons and Polylines.
As a workaround you can try using custom marker images to place image files on the map.



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