TMXTiledMap returns somehow translated object y coordinates, what's the catch?

@TommiGustafsson wrote:

Hi!

I’m familiarizing myself with TMXTiledMap class. I made a couple of test objects (1x1 tile objects) for my .tmx:

 <objectgroup id="2" name="Objects">
  <object id="1" name="SpawnPoint" x="64" y="544" width="32" height="32"/>
  <object id="2" name="TestPoint1" gid="10" x="0" y="32" width="32" height="32"/>
  <object id="3" name="TestPoint2" gid="10" x="0" y="1600" width="32" height="32"/>
 </objectgroup>

Map is like this:

<map version="1.2" tiledversion="1.3.2" orientation="orthogonal" renderorder="right-down" compressionlevel="-1" width="50" height="50" tilewidth="32" tileheight="32" infinite="0" nextlayerid="3" nextobjectid="5">

Thus, map size in pixels is 1600x1600.

Returned y values for the three objects are:

1. SpawnPoint y = 1024 (for 544)
2. TestPoint1 y = 1536 (for 32)
3. TestPoint2 y = -32 (for 1600)

It seems that y’s are somehow translated. But why is one even a negative number? What is the translation for? Can I configure it somehow?

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