<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Dear user list,</div>
<div> </div>
<div>sorry, meant to recalculate from the arithmetic values to geographic values in order to allow a proper representation in a QGIS map.</div>
<div> </div>
<div>Regards, Christine</div>
<div>
<div>
<div name="quote" style="margin:10px 5px 5px 10px; padding: 10px 0 10px 10px; border-left:2px solid #C3D9E5; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">
<div style="margin:0 0 10px 0;"><b>Gesendet:</b> Montag, 06. Dezember 2021 um 18:56 Uhr<br/>
<b>Von:</b> geo.guide@web.de<br/>
<b>An:</b> qgis-user@lists.osgeo.org<br/>
<b>Betreff:</b> [Qgis-user] representation of angles in QGIS - recalculation to arithmetic values</div>
<div name="quoted-content">
<div style="font-family: Verdana;font-size: 12.0px;">
<div>Dear colleagues on the QGIS user list,</div>
<div> </div>
<div>have an urgent problem with the representation of arrows with a data defined angle in QGIS.</div>
<div> </div>
<div>Up to now the free GIS world lived with angles assuming north being 0, east being 90 degrees and so on clockwise until reaching north again (which might be 360 degrees as well). At least QGIS and many other GIS programs work such a way.</div>
<div> </div>
<div>But: Now I have encountered a new version - probably created in the ESRI world, perhaps for harassment or to create a distinctive new feature. This is called an arithmetic angle, having East for 0 degree, North for 90 degrees and so on counter-clockwise !</div>
<div>Actually I it's somehow hard to preserve my humour for this invention.</div>
<div> </div>
<div>Is there a simple possibility to recalculate the "normal" northed angles to the "arithmetic" easted angles ? It's not that easy, because the rotation is counter-clockwise.</div>
<div> </div>
<div>Should very urgently prepare some maps with flow arrows in QGIS which normally assumes northed (geographical) angles .... The values got automatically exported from a simulation software with the arithmetic angle system, can't change that. By the way this is meanwhile also demanded by south german agency as an output specification.</div>
<div> </div>
<div>Has somebody a clue how to solve such a problem in QGIS or how to recalculate from one to the other system ? Have about 5000 values, so little chance to get this done manually. At least not in time.</div>
<div> </div>
<div>Thanks a lot for a soon feed back,</div>
<div>Christine</div>
<div> </div>
</div>
_______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">https://lists.osgeo.org/mailman/listinfo/qgis-user</a> Unsubscribe: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">https://lists.osgeo.org/mailman/listinfo/qgis-user</a></div>
</div>
</div>
</div></div></body></html>