How to rotate a map on desktop pc?

[Anonymous User]

How do you rotate a map on a desktop pc (am using Windows)?

On touch devices, there is a property that you can set to allow rotating the map by twisting using two fingers:

map.rotationByPinchingEnabled

I tried using a button that on clicked would set the map.rotation property which sort of works but ends up with a weird effect where the rectangle representing the map rotates leaving whitespace around the edge as per the attached screenshot. There must be another method?

[NeilAyres]

On ArcGIS desktop you use the "Data Frame" toolbar to rotate the frame relative to the data.

But you are probably talking about some programmatic way of doing this.

[GarethWalters · Accepted solution]

Hi Paul,

You need to use map.setRotation().

map.setMapRotation(map.rotation - 15, 0,0)

Let me know how you go.

Cheers,

Gareth

[Anonymous User]

Thanks Gareth - not sure how I missed seeing that one!

slight correction for anyone stumbing across this, the map property is map.mapRotation, the code I used in order to rotate around the center of the page...

map.setMapRotation(map.mapRotation + 15, (app.width * 0.5) , (app.height * 0.5)  )