Howto:Creating a Canvas GUI Widget: Difference between revisions

Howto:Creating a Canvas GUI Widget (view source)

428 bytes added , 2 July 2016

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 {{WIP}}
-The most minimal snippet of code to display a layered MapStructure map is the following:
+Assuming, we have access to a root group, the most minimal snippet of code to display a layered MapStructure map is the following:
 <syntaxhighlight lang="nasal">
+var TestMap = root.createChild("map");
+TestMap.setController("Aircraft position");
+TestMap.setRange(25);
+TestMap.setTranslation(width, height);
+     var r = func(name,vis=1,zindex=nil) return caller(0)[0];
+     foreach(var type; [r('VOR'),r('APT'), r('APS') ] )
+            TestMap.addLayer(factory: canvas.SymbolLayer, type_arg: type.name, visible: type.vis, priority: type.zindex,);
 </syntaxhighlight>