topic Re: Symbolize line direction in Java Maps SDK Questions

Symbolize line direction

KevinNetherton — Wed, 23 Jan 2013 20:08:28 GMT

I am really hoping that there is some way to symbolize a line features start or end points. What I would like to be able to do is place and arrow head at the end of the line. Originally I thought that setting up the symbols in an mxd and then creating the map package from the mxd would work. I guess it works in the sense that the line features are displayed, however they do not have the arrow heads on the end points as they do when I view the mxd.

Is there some way to symbolize line direction that I don't know about.

The only workaround that I can think of at the moment is to make a call to the database containing the features, extract the geometries, create graphics objects from the geometries, and place a MarkerSymbol at the last node of the line.

Really hoping there is another way. Ideas? If there isn't another way is this a feature that will show up in subsquent version of runtime? If so what kind of timeline is going to be associated with this functionality?

Thanks

Kevin

Re: Symbolize line direction

MarkBaird — Thu, 24 Jan 2013 08:25:31 GMT

Hi Kevin,

You are correct, at the moment there isn't a way of symbolizing lines with arrows... sounds like a potential product enhancement request to me!

Your idea of placing a simple marker symbol (triangle maybe) at the end of the line would work. The other alternative would be to draw your own arrow heads on the graphics layer using lines. This way you would have more control over the size of the arrow head.

Good luck

Mark

Re: Symbolize line direction

JeremieJoalland1 — Fri, 30 Aug 2013 13:07:09 GMT

This kind of symbols are definitly needed (as multi-layer symbols), in order to be able to show "movement" and/or "communication" between geolocation on our map (situational maps). So we would like to be able to use Line Direction one/both ways...
In our case, symbology is defined in SLD file and we need to be able to define start/end as arrow, circle, square, ... (sld stroke-linecap property for example)

the issue with drawing our own triangle is regarding the map scale... when user zoom in/out, it will not looks nice.

So we truly hope this will be include in the next release 10.2 🙂

Re: Symbolize line direction

CarlosColón-Maldonado — Fri, 06 Sep 2013 11:25:47 GMT

... sounds like a potential product enhancement request to me!

Kevin, what Mark meant with this quote was to submit your idea here. The more clear and concise, the better its chances for consideration.