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<p class="MsoNormal"><span style="font-family:等线">Hi Torsten,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">Thanks for the tip.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">I quickly hacked code as attached patch, it does can show all placemarks as I expected.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">However, to make it a valid enhancement, I have below questions:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">- Where to add new API? The hack code impact all placemarks, I believe should limit it to requestor (i.e. specific plugin), but keep old behavior for others.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">- Looks like PlacemarkLayout binds to PlacemarkLayer. I guess LayerInterface is right way to change for new API?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">- For plugin, how to to create a new layer and customize layer’s behavior via API?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">- For placemarksOnScreenLimit, I guess should be similar, add new API to set limits by requestor?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">Hope my comment is reasonable.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线">WANG Cui<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:等线"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Torsten Rahn <tackat@t-online.de> <br>
<b>Sent:</b> Sunday, March 26, 2023 2:29 AM<br>
<b>To:</b> ?? WANG Cui <iucgnaw@msn.com>; Mailinglist, Marble-Devel <marble-devel@kde.org><br>
<b>Subject:</b> AW: How to force to show all placemarks even when overlapp each other<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Hello,</span><o:p></o:p></p>
<p style="margin:0in"> <o:p></o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">yes the default behavior is that Marble will only populate the map view with "the most prominent" placemarks up to a certain density. </span><o:p></o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">At the same time it also takes care not to have the labels overlapped (by testing out four default label positions).</span><o:p></o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">The current layout algorithm is optimized for speed.</span><o:p></o:p></p>
<p style="margin:0in"> <o:p></o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">The density check is made inside placemarksOnScreenLimit and there is currently no API that would allow to change this default behavior.</span><o:p></o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Feel free to create a patch that would allow to change the limit away from the default via a dedicated API. </span><o:p></o:p></p>
<p style="margin:0in"> <o:p></o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Best regards</span><o:p></o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Torsten</span><o:p></o:p></p>
<p style="margin:0in"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black"> </span><o:p></o:p></p>
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<p style="margin:0in">-----Original-Nachricht-----<o:p></o:p></p>
<p style="margin:0in">Betreff: How to force to show all placemarks even when overlapp each other<o:p></o:p></p>
<p style="margin:0in">Datum: 2023-03-25T15:26:50+0100<o:p></o:p></p>
<p style="margin:0in">Von: "?? WANG Cui" <<a href="mailto:iucgnaw@msn.com">iucgnaw@msn.com</a>><o:p></o:p></p>
<p style="margin:0in">An: "Mailinglist, Marble-Devel" <<a href="mailto:marble-devel@kde.org">marble-devel@kde.org</a>><o:p></o:p></p>
<p style="margin:0in"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Hi,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Placemarks all show on globe when separate from each other without overlapping. However, when zoom out globe,
placemarks get overlap and only 1 placemark shows, other placemarks hide.<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Is there a way to force all placemarks show even when overlap each other?<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">WANG Cui<o:p></o:p></span></p>
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