javascript - catch shift-click events in ol.interaction.Draw Open Layers -


i'm trying use ol.interaction.draw add polygons openlayers map. have snap interaction on, , set turn off while i'm holding down shift.

const   snapinteraction = new ol.interaction.snap({     source: drawlayer.getsource()   }),   turnonsnap = (evt) => {     if (!isshiftkey(evt)) {       return;     }     console.log('shift key down, turning off snap');     snapinteraction.setactive(false);   },   turnoffsnap = (evt) => {     if (!isshiftkey(evt)) {       return;     }     console.log('shift key up, turning on snap');     snapinteraction.setactive(true);   };  document.addeventlistener('keydown', turnonsnap); document.addeventlistener('keyup', turnoffsnap);

this works disable snapping. however, draw interaction doesn't work when hold down shift. know condition parameter defaults ol.events.condition.nomodifierkeys, when make custom condition never gets hit!

const drawinteraction = new ol.interaction.draw({   source: drawlayer.getsource(),   type: 'polygon',   condition: function (evt) {     console.log("yo, why isn't hit when hold down shift?", evt);     return (ol.events.condition.nomodifierkeys(evt) ||       ol.events.condition.shiftkeyonly(evt));   } });

why drawinteraction ignoring shift+click events?

the default freehandcondition catching shift+click events, never evaluated condition. change else, , shift+click events hit custom condition function.

const drawinteraction = new ol.interaction.draw({   source: drawlayer.getsource(),   type: 'polygon',   condition: function (evt) {     return (ol.events.condition.nomodifierkeys(evt) ||       ol.events.condition.shiftkeyonly(evt));   },   freehandcondition: ol.events.condition.never, // <-- add line });

Comments

Post a Comment

Popular posts from this blog

PHP and MySQL WP -

i trying accomplish 2 things here code. writing php directly wp page using insert php plugin. 1) query mysql database , return results 1 column 4 columns. 2) make each result own hyperlink directs user new wp page runs new query on page. i able query show results , turn results dynamic hyperlink, cannot formatting down. right returns result 1 column. here have: [insert_php] $servername = "localhost"; $username = "login"; //edited privacy $password = "password"; //edited privacy $database = "database"; //edited privacy // create connection $conn = new mysqli($servername, $username, $password, $database); // check connection if ($conn->connect_error) { die("connection failed: " . $conn->connect_error); } echo "connected successfully"; //get results database $result = mysqli_query($conn,"select mine mines order mine"); $all_property = array(); //declare array saving property //showing proper...
Read more

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m...
Read more

go - golang pprof for c library code -

i have been trying profile golang application pprof, seems details of c code(linked static library) missed in output result. flame graph from frame graph can see c code time consuming reported within "runtime._externalcode", no details @ all. , sure static library compiled debug enable. so there way make pprof details(like stack trace) of 3rd party c code? or there other golang profiling tool this?
Read more