How to Get Buffer for Road in Arcgis Android? -


i developing 1 application using arcgis. here want implement buffer both point , line segments (road).

here buffer point using method 

geometryengine.buffer(geometry1,mmapview.getspatialreference(), meters, null)

where road if single segment able draw buffer.i unable draw buffer multiple segments.

please give me solution this.i want

my code enter image description here

 polygon = geometryengine.buffer(geometry1,                 mmapview.getspatialreference(), meters, null);         withingeometry = geometryengine.project(polygon,                 mmapview.getspatialreference(),                 mmapview.getspatialreference());        simplefillsymbol sls = new simplefillsymbol(color.transparent);         sls.setalpha(75);          graphic graphics= new graphic(withingeometry,sls);         buffergraphiclayer.addgraphic(graphics);         mmapview.addlayer(buffergraphiclayer);

there 2 options should produce result want, both involving geometryengine.union(geometry[], spatialreference) method:

  1. call union on array of geometry objects want buffer produce single geometry, , call buffer on single geometry.
  2. call buffer on array of geometry objects want buffer produce polygon array, , call union on polygon array.

Comments

Post a Comment

Popular posts from this blog

Python Kivy ListView: How to delete selected ListItemButton? -

Image
i'm trying learn kivy building simple todo-list app suggested dusty phillips, author of book "creating apps in kivy". this code far: from kivy.app import app kivy.uix.boxlayout import boxlayout kivy.properties import objectproperty kivy.uix.listview import listitembutton class taskbutton(listitembutton): pass class todoroot(boxlayout): task_input = objectproperty() task_list = objectproperty() def add_task(self): self.task_list.adapter.data.extend([self.task_input.text]) self.task_list._trigger_reset_populate() def del_task(self): pass class todoapp(app): def build(self): return todoroot() if __name__ == '__main__': todoapp().run() and kv file: #: import main todo #: import listadapter kivy.adapters.listadapter.listadapter #: import listitembutton kivy.uix.listview.listitembutton todoroot: <todoroot>: orientation: "vertical" task_input: task_input_view t...
Read more

ruby - How do I merge two hashes into a hash of arrays? -

http://codepad.org/wmyzqlis i'd merge these 2 arrays: a = { :a => 'a', :b => 'b', :d => 'd' } b = { :a => '1', :b => 'b', :c => 'c' } into hash looks this: {:a => ["a", "1"], :b => ["b", "b"], :c => [nil, "c"], :d => ["d", nil] } this doesn't work: p a.merge(b) { |k, v1, v2| [v1, v2] } # {:c=>"c", :a=>["a", "1"], :b=>["b", "b"], :d=>"d"} it's because hash#merge call block duplicate keys. a = { :a => 'a', :b => 'b', :d => 'd' } b = { :a => '1', :b => 'b', :c => 'c' } hash[(a.keys|b.keys).map { |key| [key, [a.fetch(key, nil), b.fetch(key, nil)]] }] # => {:a=>["a", "1"], :b=>["b", "b"], :d=>["d", nil], :c=>...
Read more