Re: [SailfishDevel] No map overlay objects shown if zoomLevel < 3
Again lying - it is used in the same object, this will not work. 2x sorry :) I should sleep more. Martin On Tuesday, November 26, 2013 09:02:19 AM Martin Kampas wrote: > Not true - I overlooked the condition. sorry. Still you can implement your > own version of QDeclarativeGeoMapItemBase::zoomLevelOpacity() directly > in your app so that linker will meet this first.. :) > > BR, > Martin > > On Tuesday, November 26, 2013 08:56:12 AM Martin Kampas wrote: > > Hi, > > > > you might be able to modify this behavior through overriding > > QDeclarativeGeoMapItemBase::updateMapItemPaintNode() > > https://qt.gitorious.org/qt/qtlocation/commit/523ebec5dca356e7ddf24792 > > > d9f6d2994a57599a > > > > BR, > > Martin > > > > On Tuesday, November 26, 2013 08:21:52 AM tw_bolek wrote: > > > Hi Aaron, > > > > > > > You are not doing anything wrong. As you discovered items are only > > > > visible > > > > > > when the map zoom level is greater than 3. Between zoom levels 2 > > and > > > 3 the > > > > > > opacity is ramped down linearly and is 0 below a zoom level of 2. See > > > > https://bugreports.qt-project.org/browse/QTBUG-25393 for details > > on > > > why > > > > > > this was implemented. > > > > > > Thank you very much. But does it mean that I cannot show any objects > > in > > > > zoomLevel 1? Are there no workarounds for this? Let's say that I > > need > > > to > > > > > show a full cruise of a ship between two distant continents - I want to > > > show it over the whole world map visible at once, i.e. zoom level 1, so > > > that the user does not have to scroll the map all around to see the > > > > whole > > > > > route... Zoom level 3 where the items become visible is of no use - it > > > only fits a very small part of the what I need to show at once... > > > Everything worked so well in Qt4.8/QtMobility.location 1.2 > > > > > > Many thanks, bolek > > > ___ > > > SailfishOS.org Devel mailing list ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] No map overlay objects shown if zoomLevel < 3
Not true - I overlooked the condition. sorry. Still you can implement your own version of QDeclarativeGeoMapItemBase::zoomLevelOpacity() directly in your app so that linker will meet this first.. :) BR, Martin On Tuesday, November 26, 2013 08:56:12 AM Martin Kampas wrote: > Hi, > > you might be able to modify this behavior through overriding > QDeclarativeGeoMapItemBase::updateMapItemPaintNode() > > https://qt.gitorious.org/qt/qtlocation/commit/523ebec5dca356e7ddf24792 > d9f6d2994a57599a > > BR, > Martin > > On Tuesday, November 26, 2013 08:21:52 AM tw_bolek wrote: > > Hi Aaron, > > > > > You are not doing anything wrong. As you discovered items are only > > visible > > > > when the map zoom level is greater than 3. Between zoom levels 2 and > > 3 the > > > > opacity is ramped down linearly and is 0 below a zoom level of 2. See > > > https://bugreports.qt-project.org/browse/QTBUG-25393 for details on > > why > > > > this was implemented. > > > > Thank you very much. But does it mean that I cannot show any objects in > > zoomLevel 1? Are there no workarounds for this? Let's say that I need > > to > > > show a full cruise of a ship between two distant continents - I want to > > show it over the whole world map visible at once, i.e. zoom level 1, so > > that the user does not have to scroll the map all around to see the > > whole > > > route... Zoom level 3 where the items become visible is of no use - it > > only fits a very small part of the what I need to show at once... > > Everything worked so well in Qt4.8/QtMobility.location 1.2 > > > > Many thanks, bolek > > ___ > > SailfishOS.org Devel mailing list ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] No map overlay objects shown if zoomLevel < 3
Hi, you might be able to modify this behavior through overriding QDeclarativeGeoMapItemBase::updateMapItemPaintNode() https://qt.gitorious.org/qt/qtlocation/commit/523ebec5dca356e7ddf24792 d9f6d2994a57599a BR, Martin On Tuesday, November 26, 2013 08:21:52 AM tw_bolek wrote: > Hi Aaron, > > > You are not doing anything wrong. As you discovered items are only visible > > when the map zoom level is greater than 3. Between zoom levels 2 and 3 the > > opacity is ramped down linearly and is 0 below a zoom level of 2. See > > https://bugreports.qt-project.org/browse/QTBUG-25393 for details on why > > this was implemented. > > Thank you very much. But does it mean that I cannot show any objects in > zoomLevel 1? Are there no workarounds for this? Let's say that I need to > show a full cruise of a ship between two distant continents - I want to > show it over the whole world map visible at once, i.e. zoom level 1, so > that the user does not have to scroll the map all around to see the whole > route... Zoom level 3 where the items become visible is of no use - it > only fits a very small part of the what I need to show at once... > Everything worked so well in Qt4.8/QtMobility.location 1.2 > > Many thanks, bolek > ___ > SailfishOS.org Devel mailing list ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] No map overlay objects shown if zoomLevel < 3
Hi, On Tue, 26 Nov 2013 08:21:52 tw_bolek wrote: > > You are not doing anything wrong. As you discovered items are only visible > > when the map zoom level is greater than 3. Between zoom levels 2 and 3 the > > opacity is ramped down linearly and is 0 below a zoom level of 2. See > > https://bugreports.qt-project.org/browse/QTBUG-25393 for details on why > > this was implemented. > > Thank you very much. But does it mean that I cannot show any objects in > zoomLevel 1? Are there no workarounds for this? Let's say that I need to > show a full cruise of a ship between two distant continents - I want to > show it over the whole world map visible at once, i.e. zoom level 1, so > that the user does not have to scroll the map all around to see the whole > route... Zoom level 3 where the items become visible is of no use - it > only fits a very small part of the what I need to show at once... > Everything worked so well in Qt4.8/QtMobility.location 1.2 Unfortunately from the looks of the implementation there is no work around for this. Cheers, -- Aaron McCarthy ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] No map overlay objects shown if zoomLevel < 3
Hi Aaron, > You are not doing anything wrong. As you discovered items are only visible > when the map zoom level is greater than 3. Between zoom levels 2 and 3 the > opacity is ramped down linearly and is 0 below a zoom level of 2. See > https://bugreports.qt-project.org/browse/QTBUG-25393 for details on why this > was implemented. Thank you very much. But does it mean that I cannot show any objects in zoomLevel 1? Are there no workarounds for this? Let's say that I need to show a full cruise of a ship between two distant continents - I want to show it over the whole world map visible at once, i.e. zoom level 1, so that the user does not have to scroll the map all around to see the whole route... Zoom level 3 where the items become visible is of no use - it only fits a very small part of the what I need to show at once...Everything worked so well in Qt4.8/QtMobility.location 1.2 Many thanks, bolek ___ SailfishOS.org Devel mailing list
Re: [SailfishDevel] No map overlay objects shown if zoomLevel < 3
On Mon, 25 Nov 2013 17:36:24 tw_bolek wrote: > In my application I use a map (QtLocation 5.0, Map, OSM or Nokia plugin) and > I need to show certain overlay objects on it. The map itself works fine > (both with OSM and Nokia plugin), the problem is that objects over it are > shown only if zoomLevel is 3 or more. No matter if I use an Image within > MapQuickItem, or MapCircle, or whatever else, the objects become visible > only if the zoomLevel is at least 3. On zoomLevel 0-2 only plain map is > shown, no objects at all... > > I use the MapQuickItem image without rescalling (i.e. its size is the same > in all zoomLevels), I also tried with really huge MapCircle (like 500 km > radius), so it's not that in zoomLevel 0-2 the objects are too small to be > seen, they just AREN'T THERE. They are there you just can't see them :) > A bug, a feature, or am I doing something wrong? You are not doing anything wrong. As you discovered items are only visible when the map zoom level is greater than 3. Between zoom levels 2 and 3 the opacity is ramped down linearly and is 0 below a zoom level of 2. See https://bugreports.qt-project.org/browse/QTBUG-25393 for details on why this was implemented. Cheers, -- Aaron McCarthy ___ SailfishOS.org Devel mailing list
[SailfishDevel] No map overlay objects shown if zoomLevel < 3
Hi guys, In my application I use a map (QtLocation 5.0, Map, OSM or Nokia plugin) and I need to show certain overlay objects on it. The map itself works fine (both with OSM and Nokia plugin), the problem is that objects over it are shown only if zoomLevel is 3 or more. No matter if I use an Image within MapQuickItem, or MapCircle, or whatever else, the objects become visible only if the zoomLevel is at least 3. On zoomLevel 0-2 only plain map is shown, no objects at all... I use the MapQuickItem image without rescalling (i.e. its size is the same in all zoomLevels), I also tried with really huge MapCircle (like 500 km radius), so it's not that in zoomLevel 0-2 the objects are too small to be seen, they just AREN'T THERE. A bug, a feature, or am I doing something wrong? Thanks, Bolek ___ SailfishOS.org Devel mailing list
