topic Re: how can i freehand draw in ArcGIS Runtime SDK for iOS Questions

how can i freehand draw

HamzaHaroon — Thu, 09 Aug 2012 12:02:53 GMT

is there a way to free hand draw lines on maps? ive tried using a glview, but i need the drawing to stay at its location on the map and move when i pan or zoom the map.

Re: how can i freehand draw

LukePhilips — Thu, 09 Aug 2012 15:15:32 GMT

Use a graphics layer and add your points/lines to that.
More about Graphics:
http://help.arcgis.com/en/arcgismobile/10.0/apis/ios/2.2/concepts/index.html#/Creating_a_Graphics_layer/00pw0000001z000000/

A sample you could try:
http://www.arcgis.com/rc/item.html?id=4ff8cbf77fb94227bcf6bbb9d4ab8d2c

Re: how can i freehand draw

HamzaHaroon — Thu, 09 Aug 2012 16:37:23 GMT

i dont think this will work for me. im trying to draw while dragging, instead of touching points. i was thinking of using the sketch layer sample and changed the point tool to handle multi points, and then some how disable pan and zoom while that tool is active amd draw while dragging.

Re: how can i freehand draw

HamzaHaroon — Mon, 13 Aug 2012 16:29:34 GMT

i still havent found a way to do this. im basically trying to disable the pan and zoom functions of the map whil drawing polygons, and be able to draw by dragging. would opengl work for this kind of task?

Re: how can i freehand draw

NimeshJarecha — Wed, 15 Aug 2012 15:21:30 GMT

You don't need openGL for this. UIView is enough for free hand drawing.

Regards,
Nimesh

Re: how can i freehand draw

AkhilChoran_Balan — Fri, 01 May 2015 21:42:42 GMT

How do we add an arc on graphics layer? In Apple mapkit we could subclass MKOverlayPathRenderer and override createPath method. Is there something similar for AGSGeometry?