Hi all,
just wanted to bring some attention to the fact that it is still unclear if
the Qt Location module (which gives plotting of geographical maps) will be
included in Qt 6 at all.
For our use-case it's a complete show-stopper if it disappears (especially
using the mapbox-gl plugin) and we wou
Hi, as far as I can see Qt Quick3D in Qt 5.15 is not able to automatically
generate mipmaps on textures (introduced in Qt 6.x as far as I can see).
Anyone know which texture file formats are supported in Qt Quick3D in Qt
5.15, and any Linux-based tools to use to generate such files from a .png
fil
Hi all,
just wondering if any of you have had any experience with combining Qt
Quick and Unreal Engine 4 (or 5)? My goal would be to use a Qt Quick UI on
top of 3D scenes from Unreal Engine. If you have, it would be interesting
to hear how it went, and if you have any recommendations.
I'm conside
2016-04-18 14:38 GMT+02:00 Andy :
> On Mon, Apr 18, 2016 at 3:26 AM, Harald Vistnes
> wrote:
>
>> Hi Andy,
>>
>> An alternative is to use the FFMPEG encoding library instead of the
>> command line tools. Then you can pass each frame to the video encoder as
>> you generate it without writing them
2016-04-29 10:11 GMT+02:00 Nuno Santos :
>
> Code compiled and ruined fine but couldn’t notice a faster performance (I
> have profiling timers in critical parts of the application).
>
> Has anyone done this before?
>
>
As far as I know Qt is built with qreal as double as a default setting.
In cas
2016-04-29 16:36 GMT+02:00 Jean-Michaël Celerier <
jeanmichael.celer...@gmail.com>:
>
> On Fri, Apr 29, 2016 at 1:55 PM, Ola Røer Thorsen
> wrote:
>
>>
>> float a = 1.0f;
>> float b = 2.0*a; // BAD!
>> float b = 2.0f*a; // Good!
>>
>
> Pretty
2016-04-30 10:46 GMT+02:00 Jean-Michaël Celerier <
jeanmichael.celer...@gmail.com>:
> https://godbolt.org/g/DqBlFG
>
> With gcc -O1
>
> float f(float x)
> {
> return 2. * x;
> }
>
> becomes
>
> f(float):
> addss %xmm0, %xmm0
> ret
>
>
> and
>
> float g (float x)
> {
> return
I need to set a Qt3D::QCamera orientation directly. I've got the position
in a QVector3D and the rotation in a QQuaternion. I can't seem to find any
API for this. The "rotate"-function just adds my quaternion to the existing
orientation which is not what I'm looking for. Is there some better way to
Hi,
I need to load some simple 3d scenes into an application using Qt3D,
QtQuick and Qt 5.7.
I've created the scenes in Blender, exported them as Collada files and they
mostly show up in my application unless SceneLoader causes a crash. I'm
using the basic ForwardRenderer frameGraph like so,
What's the definition of the field of view angle for Q3D' s QCamera? Is it
the diagonal field of view?
Cheers,
Ola
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I've found that creating C++ models containing a list of QObject* based on
QAbstractListModels and using them in Quick views such as ListView is very
useful. I'm not the only one, there are several implementations of
"QObjectListModel" around, and I've got my own as well.
On quite rare ocations I
I'm struggling getting any maps shown using the Qt Location Mapbox plugin.
I'm getting error messages like "failed to fetch tile, , server
replied: Forbidden".
The plugin needs a map_id and an access_token.
On the mapbox website it's easy to find the access tokens, but no map id's.
Maybe they
box, not osm/mapquest that is now broken.
> 2016-07-15 14:43 GMT+02:00 Ola Røer Thorsen :
>> I'm struggling getting any maps shown using the Qt Location Mapbox plugin.
>> I'm getting error messages like "failed to fetch tile, , server replied:
>> Forbidde
Thank you for the feedback, Ben.
2016-07-15 19:32 GMT+02:00 Ben Lau :
> Hi,
>
> In my humble opinion, QObjectListModel is a bad idea. Because it is
> difficult to manage the life cycle of QObject with QML. Just like your
> problem. I have met the similar issue in my first QML project. The
> appli
2016-07-15 18:08 GMT+02:00 :
>
> Do you see http://doc.qt.io/qt-5/location-plugin-mapbox.html and
> https://www.mapbox.com/help/define-map-id/ ?
>
>
Thank you! That second URL helped, I had not seen it. I was using the
Mapbox Studio, and that page says
"Styles made in Mapbox Studio do not have map
I'm plotting 3d point cloud data in QML using the Scatter3D item. I'd like
to set the color of each point individually from a gradient, but not
related to each point's position.
The use case is plotting temperatures in 3d-space. Each point represents a
temperature measurement at some 3d coordinate
I plan to release a closed source Qt-based application in a few months.
It's using the LGPL version of Qt, and I plan to bundle the Qt dynamic
libraries and plugins I need along with the application in an installer.
I have built up a list of the open source libraries that I have used along
with th
2018-09-05 14:08 GMT+02:00 Tomasz Olszak :
> Hi, I want to animate (change flickable contentX and contentY) image
> position in screen. Image is bigger(4000x3000) than screen. Currently, I
> implemented it on I7 ivybridge on Kubuntu 18.04.
> It simply stutters few times a second. If anyone has int
Last time I tried the command line options to avoid using the installer gui
did not do anything. Then spent some time trying to script the installer
for console-only-use, but it's not well documented and hard to get right.
Expect to get into situations during upgrades where your script will get
stu
There is some code in the QMultimedia source that does convert from YUV to
RGB while rendering to the screen, I'd recommend you take a look there for
inspiration. I think it's the qsgvideonode_yuv.cpp file.
I've done similar things (I do rgb->yuv instead). Basically you upload your
YUV image to te
lør. 4. mai 2019 kl. 17:51 skrev Thiago Macieira :
> No, the size of something definitely fits in int on 32-bit systems. And
> why do
> you need to do any static_cast in the first place?
>
We build our code using gcc with the options "-Wall -Wextra -Werror" and
this leads us to have to use static
> Could you make an example where the casts are needed? Maybe the code can
> be rearranged in a way that the casts are NOT needed in the first place.
>
>
QByteArray bytes; // chosen because some api needs it later
std::vector other_bytes; // maybe returned from some 3rd party library
...
if (static
man. 30. sep. 2019 kl. 16:48 skrev Thiago Macieira <
thiago.macie...@intel.com>:
>
> It's just wrong to use it. Just like QThread::{,m,u}sleep. Don't use them.
>
>
What's wrong with the sleep functions in particular? Are they worse than
calling for example unistd.h's "usleep" or
"std::this_thread:
Hi all, I've got a thread in an application (Linux, Qt 5.13.0) which just
writes udp datagrams at a relatively high frequency (video streaming).
Sometimes the QUdpSocket::writeDatagram function returns -1 and the socket
error is "TemporaryError". Looking into the source code of the udp socket
class
tor. 19. des. 2019 kl. 17:24 skrev maitai :
> We would like to serve custom vector tiles, ideally though an API call
> or eventually a local server/stream. We don't want to add data or layers
> to an existing mapbox chart, but rather respond to tile queries by
> sending our own geojson tiles. We h
> 27. des. 2019 kl. 19:51 skrev maitai :
>
> Hello,
>
> Is there a way to specify a specific url for glyphs in mapboxgl plugin?
>
Define a custom map style with those glyphs and serve it locally is the only
way I can think of. Your server needs to serve the glyphs too along with the
style.
Hi all,
is it possible to use 64bit integers in QML?
Looking at the docs at http://doc.qt.io/qt-5/qml-int.html it seems like the
integers are 32-bit signed only (by counting the zeros in 20...)
Thanks,
Ola
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Den 2015-01-21 09:24, skrev Alexander Ivash:
Yes, your are right, there was an error in my sample, but even fixing
it doesn't change a lot: ui.qml files becomes not editable via
QtCreator's QML designer due to presence
onClicked: root.onClicked(root.model.get(index)); /// this line makes
QtCr
Hi all,
I would like to create a custom Animator class, or something similar that
can manipulate a QQuickItem's x and y position from the render thread.
The intended use is to move some label items on top of a 3d scene. The
labels will follow certain entities in the 3d scene. I know it will mostl
Hi Gunnar, thanks for the reply.
2015-01-25 16:42 GMT+01:00 Gunnar Sletta :
>
>
> No such plan, no :)
>
> Doing custom animations on your nodes is easy using the QSGNode API
> though. For instance, like it is done in the “threadedanimation” example:
> https://qt.gitorious.org/qt/qtdeclarative/so
Hi,
I'm having some trouble making a robust QtQuick 5.4-based application where
I only have 4 cursor keys and a return key available as the input method
for the user.
I have various gui buttons that I can move focus between. I've set this up
using the KeyNavigation.onXXX etc. For a simple static
html
>
> Hope this help somehow,
> Jerome
>
>
> On Wed, Jan 28, 2015 at 9:46 AM, Ola Røer Thorsen
> wrote:
>
>> Hi,
>>
>> I'm having some trouble making a robust QtQuick 5.4-based application
>> where I only have 4 cursor keys and a return key av
2015-02-24 8:51 GMT+01:00 Mathieu Slabbinck :
>
> So my question here: how can I make a qt project that compiles libx
> before starting on the app itself, disregarding multiple jobs.
>
>
Hi, I think doing something like this in your subdir project file will help:
TEMPLATE = subdirs
SUBDIRS = Some
Hi,
I'm looking into using enum classes (c++11) and exposing them to QML as a
part of planning a new project. It will use Qt 5.5 so I'm using Qt 5.5
alpha for now.
I'd like to use enum classes for the enums, but I'm not sure if it is
possible to use these in QML. Let's say I have two enums in a c
Hi all,
just wondering if someone has tried using the Bullet physics engine with
Qt3D 2.0? Wondering about the best/recommended way to combine these. I'd
like to step Bullet's simulation loop and visualize the rigid bodies,
basically.
Best regards,
Ola
Hi,
I've created a custom video player using QMultimedia, that plays back
certain video files that are to be post-processed frame-by-frame. The
post-process depends on each video frame's start time. I'm using the Qt
5.1 beta release (I use the new desktop QML features).
I've created a video su
Hi again, thanks for all the replies!
Nils, thanks for pointing out the beginMoveRows functions and the sample
code. So the limitation isn't ListView at all, it's just the
QSortFilterProxyModel.
I can confirm that using this method the animations do work, as I've now
implemented my own sorting an
Hi,
I'm planning a Quick2-based application that will run on an embedded
Linux device (similar to Raspberry PI) where the application is the only
user of the framebuffer (no X11). The application will be controlled by
keyboard cursor keys only. I have been doing some mockups on the desktop
wit
2013-08-23 16:10, skrev deDietrich Gabriel:
> Hi,
>
> On Aug 23, 2013, at 9:49 AM, Ola Røer Thorsen wrote:
>
>> - Is it possible to do complete styling of the Menu? There is some
>> things in the source code it seems, but it's not documented. Maybe more
>> feat
I need to generate key press events in c++ (based on packets received
via udp), so that these behave like regular key presses in a
Quick2-based application. The target platform has a rather specialized
non-standard keyboard.
I have found some examples on how to do this with widgets, but these
Brilliant, it works, thanks :-)
Den 2013-08-30 14:24, skrev Tomasz Olszak:
2013/8/30 Ola Røer Thorsen <mailto:o...@silentwings.no>>
I need to generate key press events in c++ (based on packets received
via udp), so that these behave like regular key presses in a
Qui
Hi,
I can't seem to get keyboard navigation working when I embed a ListView in
a ScrollView
ScrollView {
ListView {
...
}
}
just like in the documentation. I've tried enabling focus on both, or just
one, and so on. Keyboard navigation works fine on the ListView when used
without the
Hi Jens,
thanks for the explanation! Setting interactive to true solved for me (the
target platform has no mouse or touch anyway).
Best regards,
Ola
2013/9/25 Bache-Wiig Jens
>
> On Sep 24, 2013, at 9:53 AM, Ola Røer Thorsen wrote:
>
> Hi,
>
> I can't seem to
Hi,
I have a c++ list model that inherits QAbstractListModel. It contains a
list of waypoints that amongst other things have x,y screen coordinates.
Points are added, removed and values are changed runtime.
I want to visualize these in Quick2 on top of a map image. I need to create
Quick Items ma
Ah! Thank you, exactly what I was looking for!
Best regards,
Ola
(Sendt fra mobiltelefon)
> Den 28. sep. 2013 kl. 16:47 skrev Дмитрий Козлов :
>
> 27.09.2013 17:22, Ola Røer Thorsen пишет:
>> Hi,
>>
>> I have a c++ list model that inherits QAbstractListModel
> I agree that the documentation is slightly misleading. There is private
> API to position the menu at any position, but for the moment it’s still…
> private. We may make it public in a way or another if we see demand for
> that.
>
> BTW, what is your exact use case?
>
>
There is definitely a nee
Hi all,
I want to use a custom fragment shader when rendering a Image item. Is it
possible to set the shader to use directly somehow? That is, I want to use
a custom shader instead of the "passthrough" fragment shader used in the
Image element.
I have tried using the QtGraphicalEffects (GammaAdju
stomImage item.
>
> I agree that in some cases such a feature would indeed be useful to avoid
> having to do this.
>
> Cheers,
>
> Sean
>
>
> On 22/10/2013 14:20, Ola Røer Thorsen wrote:
>
> Hi all,
>
> I want to use a custom fragment shader when rendering a Im
______
> Fra:
> interest-bounces+gunnar.sletta=digia@qt-project.org[interest-bounces+gunnar.sletta=
> digia@qt-project.org] på vegne av Ola Røer Thorsen [
> o...@silentwings.no]
> Sendt: 22. oktober 2013 15:20
> To: interest@qt-project.org
> E
Hi all,
if I use a ShaderEffect on an image that is loaded asynchronously, I get
the error/debug message on the console:
ShaderEffect: source or provider missing when binding textures
for every frame rendered until the image is completely loaded and the
texture is complete.
This means our syste
fined' && source.status == Ready
> ...
> }
>
> Should keep it hidden and also remove the warning...
>
> cheers,
> Gunnar
>
> --
> *Fra:*
> interest-bounces+gunnar.sletta=digia@qt-project.org[interest-bounces+gunna
Hi all,
I'm seeing tearing-effects when scrolling in ListView and other items based
on Flickable when clipping is enabled. This is running on both a Linux
desktop as well as an embedded Linux device (eglfs). The Qt version is
5.1.1.
The systems are running with vsync enabled and double-buffering.
nar.sletta=digia@qt-project.org[interest-bounces+gunnar.sletta=
> digia....@qt-project.org] på vegne av Ola Røer Thorsen [o...@silentwings.no
> ]
> *Sendt:* 13. november 2013 15:29
> *To:* interest@qt-project.org
> *Emne:* [Interest] Tearing in Quick2 flickable-based items with clipp
r a steady
30Hz instead of a 30-60 mix with the occasional tearing.
Cheers,
Ola
2013/11/13 Ola Røer Thorsen
> Hi Gunnar, I'll see if I can create a small example that reproduces it.
>
> Cheers,
> Ola
>
>
>
> 2013/11/13 Sletta Gunnar
>
>> If this con
Did you remember to import your registered type in your qml code? If you
register something like this,
qmlRegisterType("MyClass",1,0,"MyClass");
where you have your enums then in qml you need to import that type on the
top of your code,
import MyClass 1.0
Cheers,
Ola
2013/11/14 Guido Seifer
Hi all,
here is a case that I find rather limiting and time-consuming. It has to do
with focus scopes and keyboard navigation. I'm looking for a best way to
deal with the following situation:
- I have a ColumnLayout of button-like items, like a popup-menu.
- The first item has "focus" set to true
rcissus which contains cpufrequtils and investigate. I really hope I can
> document that CPU usage of simple custom QtQuick2-based widgets is
> reasonable on DM3730/BB-xM.
>
> - VStevenP
>
> --------
> On Wed, 11/20/13, Sletta Gunnar wr
Hi Liang,
thanks for the reply! I will create a bug report right away.
Best regards,
Ola
2013/11/22 Liang Qi
> Hi, Ola,
>
> Just got notification about your question from others, and subscribed this
> mailing list.
> http://lists.qt-project.org/pipermail/interest/2013-November/009878.html
>
And here it is: https://bugreports.qt-project.org/browse/QTBUG-35051
2013/11/22 Ola Røer Thorsen
> Hi Liang,
>
> thanks for the reply! I will create a bug report right away.
>
> Best regards,
> Ola
>
>
>
>
> 2013/11/22 Liang Qi
>
>> Hi, Ola,
>&
Hi all,
I've started using the new "Qt5" way of connecting signals and slots, to
get errors compile-time instead of runtime. Great stuff.
Here is one I struggle to connect. If you have a QTcpSocket, and want to
handle the error signal in a slot called tcpSocketError, a connect like
this:
connect
e added to this page here,
http://qt-project.org/doc/qt-5.1/qtcore/signalsandslots.html ?
Cheers,
Ola
2013/11/22 Thiago Macieira
> On sexta-feira, 22 de novembro de 2013 16:56:47, Ola Røer Thorsen wrote:
> > Is this a bug in Qt, or did I not use the correct syntax? I recon this
&g
Hi all,
I have a ListView showing a c++ model that changes runtime. Items are added
and deleted.
When an item is added, how do I set the ListView's current index to the new
item?
Cheers,
Ola
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Hi all,
the shortcut property on QuickControls Action uses a string. The
documentation on this one is very short: "Shortcut bound to the action.
Defaults to the empty string."
Is there a list somewhere describing the "string" names of all keys and how
to write these as combinations of ctrl, shift
2013/12/9 Preet
>
>
> Have you tried connecting to the onAdd() signal and then calling
> positionViewAtIndex?
>
>
> http://doc-snapshot.qt-project.org/qdoc/qml-qtquick-listview.html#positionViewAtIndex-method
>
>
I was a bit confused about that one, it has to be done like this, right?
It's an att
>
> 2013/12/9 Preet
>
>>
>>
>> Have you tried connecting to the onAdd() signal and then calling
>> positionViewAtIndex?
>>
>>
>> http://doc-snapshot.qt-project.org/qdoc/qml-qtquick-listview.html#positionViewAtIndex-method
>>
>>
I was a bit confused about that one, it has to be done like this, righ
2013/12/11 Preet
>
> The index is exposed just as 'index' in the delegate itself.
>
>
Ah. Thank you! Somehow missed that earlier.
> > What's the difference between that one and Component.onCompleted?
>
> I think Component.onCompleted is run any time something creates the
> component, which mig
I recently discovered the new way of doing render-to-FBO in Qt 5.2.0. It's
a major improvement compared with what had to be done previously, I think!
:-)
However I have run into something tricky as I want to do something more
advanced:
I need to render some textured geometry into an FBO. The use-
unnar
*Fra:* interest-bounces+gunnar.sletta=digia@qt-project.org
[interest-bounces+gunnar.sletta=digia@qt-project.org] på vegne av
Ola Røer Thorsen [o...@silentwings.no]
*Sendt:* 12. desember 2013 15:34
*To:* interest@qt-project.org
*Emne:* [Interest] QOpenGLFramebufferObject, rend
Is it possible to set a custom fragment shader (for rendering on screen) on
an item that is inheriting QQuickFramebufferObject? If so, how?
Cheers,
Ola
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Hi,
I have a list of objects at the core of a class inheriting
QAbstractListModel,
QList m_list;
"MyObject" inherits QObject and has many properties (20 or so). I need to
access most of these properties in a Quick2 view delegate.
To avoid creating roles for each of these properties, I created a
Hi Jan!
> When working with the QAbstractItemModel, items can only be deleted via
> resetting the model, or when removing rows/columns. The row/column removal
> shall happen in three phases:
>
> 1) call beginRemoveRows
> 2) remove the internal representation, freeing the MyObject instances
> 3) c
2013/12/20 Rogers Nate
> I am having an issue where sometimes certain letters of one of the fonts
> I am using are getting corrupted. It is not always the same letter, each
> time I do a build it changes, one time it may be a W then next time it’s a
> c or an h, sometimes it is none. Anyway th
2014/1/3 VStevenP
> 1. Is there a way to run this meter so that it will not be blocked by any
> QML Loader activity? (I have some launcher icons on a sidebar which
> control what QML is loaded to appear in the common "desktop" client area of
> my display.)
>
> My hope is that the meter could be
Hi all,
I've been looking at the Scene Graph - Graph example application included
with Qt5.2.0, to see how to create a custom shader material for Qt Quick.
In linenode.cpp, there is a LineShader class, where the shaders are read
like so:
const char *vertexShader() const {
QResource
>
>
> I think the example is just doing it wrong, it should instead load the
> resource file contents using QFile into two QByteArrays into the ctor
> and then return the QByteArrays' contents there.
>
>
Right. Thanks for the feedback! I'll use QFile to be sure, in case
compression is enabled.
Che
Hi all,
I have an application written with Qt 5.2 in C++ and QtQuick2, running on a
low-end ARM device. I use the Loader item to select between various screens
in the application (I've currently got 6 screens or so). This way I can
limit the amount of active bindings at a given time, etc.
The fir
Not directly answering your question Jeff, but anyway, I recommend looking
into using bc-cat on the SGX if possible.
http://processors.wiki.ti.com/index.php/OpenGLES_Texture_Streaming_-_bc-cat_User_Guide
You will have to write your own video render item for Qt Quick, because you
need a special te
Hi, I've got 3 questions about texture use in the Qt Quick scene graph:
1.
In general it's recommended in OpenGL to use power-of-two-sized textures
whenever possible, for performance resons. Does the Qt Quick scenegraph
deal with this in any way, or is it up to the user to use properly sized
imag
Is it possible to use PVRTC texture compression in Qt Quick 2 on PowerVR
gpus? If not, what would it take to add such a feature?
I searched through the Qt 5.2.0 source code, seems there was PVRTC support
in the old "QGL*" classes, but nothing in the "QOpenGL*" classes.
Cheers,
Ola
___
2014/1/20 Gunnar Sletta
> You can install a custom image provider that provides the PowerVR texture
> directly as a QSGTexture. In the scenegraph playground repository there is
> already a plugin that does this for AMD compressed textures. You can use
> that as a basis for your code.
>
>
> https:
Thanks Gunnar :-)
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I've got a custom menu item (ColumnLayout-based), where the items inside
are some custom button items. Each item is set up with KeyNavigation so
that active focus is moved up and down using the cursor keys.
If a button item's "enabled" property is set to false while having active
focus, it's not p
> Onsdag 22. januar 2014 13.46.03 skrev Ola Røer Thorsen:
> > I've got a custom menu item (ColumnLayout-based), where the items inside
> > are some custom button items. Each item is set up with KeyNavigation so
> > that active focus is moved up and down using the cursor key
Hi all,
I've got a custom video player application currently being used on Linux
(embedded with EGLFS), Desktop Linux and Windows 7. Now trying to deploy it
on Android as well, but I'm facing some problems. I'm using the Qt 5.3.0 RC
version.
The application uses Qt Quick2. The video playing part
2014-05-13 17:00 GMT+02:00 Lopes Yoann :
> On May 13, 2014, at 4:52 PM, Lopes Yoann wrote:
>
> > Another thing you need to know is that the texture you'll get uses the
> GL_TEXTURE_EXTERNAL_OES texture target and not the regular GL_TEXTURE_2D
> target. You can find some information about this here
Hi,
If I call rcc (the Qt Resource Compiler) twice using the exact same input,
the resulting .cpp files are never exactly the same. They are all
completely valid, just the ordering of "items" inside is different. I'm
just curious, why?
Cheers,
Ola
___
I
2014-05-20 2:01 GMT+02:00 Thiago Macieira :
> Em seg 19 maio 2014, às 23:10:10, André Pönitz escreveu:
> > > It's due to the hash randomisation. This was done to avoid DoS attacks
> > > that
> > > can be performed by tweaking data to ensure it always falls into the
> same
> > > hash bucket.
> >
>
Hi all,
I have a Q_GADGET-based class with properties that I instantiate in C++ and
expose to qml via QVariant in a list model. The class is registered to Qt
and Qml using Q_DECLARE_METATYPE,
qRegisterMetaType and qmlRegisterUncreatableType.
The properties are defined like this:
class MyGadget {
2017-06-20 13:52 GMT+02:00 Ola Røer Thorsen :
> function doStuff() {
>var o = theGadget;
>console.log("o.name"); // prints "Name"
>o.name = "Some other name"; // No error, but nothing really happens
> either
>console.log("o.
to
go unnoticed.
If anyone on this list from the Qt Company can give me some valid contact
information please send me an email.
Best regards,
Ola Røer Thorsen
o...@silentwings.no
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Hi, I'm evaluating using QtLocation's map using mapboxgl. Currently I'm
using the default settings, default map style, default developer access
token.
I'd like to set most layers' fill color to transparent, to see how it works
out as an overlay on top of some live video.
>From the documentation i
2017-10-24 12:36 GMT+02:00 Paolo Angelelli :
>
> For your specific problem, if this is going to work, it's probably by
> setting some of the properties described
> in https://www.mapbox.com/mapbox-gl-js/style-spec/#layers-fill
>
>
Thanks for the reply! I got it working, after I figured out that th
>
> MapParameter {
> type: "paint"
> property var layer: "water-shadow"
> property var fillOpacity: 0.1
> }
>
>
... sorry for accidentally pressing send.
It seems like the map does not handle transparency properly. I also tried
cr
Is the new webgl streaming platform plugin supposed to be included in the
Qt 5.10 Linux installer, or do I have to build Qt from source to use this?
The platform plugin is as far as I can see not included in the current
beta2 (installed using the online installer).
Ola
___
Try the RotationAnimation item and set the direction property to shortest.
http://doc.qt.io/qt-5/qml-qtquick-rotationanimation.html
Cheers,
Ola
> Den 29. jan. 2018 kl. 02.15 skrev Jason H :
>
> I am trying to make a compass control, something that shows 0-360, like a
> boat compass. It's got
2018-02-08 13:56 GMT+01:00 william.croc...@analog.com <
william.croc...@analog.com>:
> I have an application.
> I would like to rearchitect it were 90% is in a shared library.
> I would use that lib to link a main application.
> I would like to create a single .pro file that can be
> used to creat
Hi,
I need to render a Qt Quick scene and stream it as H264 data on an
i.MX6-device running Linux. The use case is to be used live with as little
latency as possible.
I'm thinking of using the QQuickRenderControl class. The easy way is
probably to render the scene to a QOpenGLFramebufferObject, c
Hi Gunnnar,
thanks a lot, this gives me a good starting point. I didn't know I could
use GL_viv_direct_texture "in reverse" like this, I'll try it out. Already
using it to stream decoded h264 video to a texture for rendering to the
screen.
I don't know which one will work best, but you want to av
setting the environment variable QT_QPA_EGLFS_FB to my virtual
device. I'd like to avoid this if possible.
Cheers,
Ola
2018-03-23 9:12 GMT+01:00 Ola Røer Thorsen :
> Hi Gunnnar,
>
> thanks a lot, this gives me a good starting point. I didn't know I could
> use GL_viv_direct_texture &quo
is there some nice trick to make a QTimer trigger at 30 Hz? This interval
can't be expressed properly in milliseconds (1000/30 = 33.33...)
My use case is for Linux only so I'd be happy with some Linux-specific way
of triggering a signal at 30 Hz too. It won't have to be very precise for
each t
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