Hi all,
Preamble : I am not a QGIS core rendering guru, nor an opengl/webgl, etc.
one.
In web mapping contexts, major improvements are made in 2D vector rendering
speed by using WebGl technology, such as in upcoming OpenLayers 3. As a
user point of view, improvement seems huge compared to
Hello,
Le jeudi 24 octobre 2013 09:54:06, kimaidou a écrit :
[..]
In web mapping contexts, major improvements are made in 2D vector rendering
speed by using WebGl technology, such as in upcoming OpenLayers 3. As a
user point of view, improvement seems huge compared to classical DOM or
more
We would probably begin with porting QGIS to QT5, as OpenGL support has
been
added to QT5 and improved in 5.1.
See for example :
http://qt-project.org/doc/qt-5.0/qtopengl/2dpainting.html
Otherwise, reimplementing an pure OpenGL rendering engine seems a big
effort.
And we still would want
2013/10/24 Vincent Picavet vincent...@oslandia.com
Hello,
Le jeudi 24 octobre 2013 09:54:06, kimaidou a écrit :
[..]
In web mapping contexts, major improvements are made in 2D vector
rendering
speed by using WebGl technology, such as in upcoming OpenLayers 3. As a
user point of view,
There is also a more ambitious option, detach in QGIS the render of the objects
of the painting technology ( Currently Qt+QPainter ) using interfaces as Ogre,
Irrlicht or OSG does.
Then could be implemented several 2D/3D-CPU/GPU renderers ( Qt4-5, OpenGL,
OpenGL ES, Ogre, OSG ...) being the
Hello all again,
From PyQgis, I need to export (to my own format) only the elements
contained in the QGis view.
So, I taken the canvas coordinates and I created a string that has the
expression syntax:
text = self.iface.mapCanvas().extent().toString()
text1 =
Hey Roberto,
No need for all that :)
This is all you need:
rq = QgsFeatureRequest(iface.mapCanvas().extent())
for feature in layer.getFeatures(rq):
...
http://www.qgis.org/api/classQgsFeatureRequest.html
- Nathan
On Thu, Oct 24, 2013 at 8:11 PM, Geo DrinX geodr...@gmail.com wrote:
Great Nathan !!!
This is all you need:
rq = QgsFeatureRequest(iface.mapCanvas().extent())
for feature in layer.getFeatures(rq):
You are the best: you solved in a second all my ploblems :)
Thank thank thank you.
Roberto
___
Qgis-developer
Hello,
I inserted a new version of GEarthView plugin for QGis.
When possible, please test it for the approval
These are the updates:
- Added publishing in KML also vector elements inside the view (with
attributes)
- Added an info panel
Regards
Roberto
Hi all
Qt already has an open gl based paint device ( QGLPixelBuffer ), so the
effect of hardware acceleration can be tested just by replacing the
QImage with a pixel buffer. I did this years ago and ( can't remember
the Qt version ), the rendering with QGLPixelBuffer was slower on my
Hi Marco
On Thu, Oct 24, 2013 at 6:32 PM, Marco Hugentobler
marco.hugentob...@sourcepole.ch wrote:
Hi all
Qt already has an open gl based paint device ( QGLPixelBuffer ), so the
effect of hardware acceleration can be tested just by replacing the QImage
with a pixel buffer. I did this years
On Thu, Oct 24, 2013 at 3:46 AM, Martin Dobias wonder...@gmail.com wrote:
On Thu, Oct 24, 2013 at 1:32 AM, Radim Blazek radim.bla...@gmail.com wrote:
On Wed, Oct 23, 2013 at 7:07 PM, Martin Dobias wonder...@gmail.com wrote:
When I enter those two lines into QGIS python console, it work fine
Related issue http://hub.qgis.org/issues/6505
Radim
On Thu, Oct 24, 2013 at 4:40 PM, Radim Blazek radim.bla...@gmail.com wrote:
On Thu, Oct 24, 2013 at 3:46 AM, Martin Dobias wonder...@gmail.com wrote:
On Thu, Oct 24, 2013 at 1:32 AM, Radim Blazek radim.bla...@gmail.com wrote:
On Wed, Oct 23,
and you can use a simple dictionary:
fields = layer.pendingFields()
field_names = [field.name() for field in fields]
for elem in layer.getFeatures():
atr = dict(zip(field_names, elem.attributes()))
The result is a Python dictionary:
{u'DIP_DIR': 120, u'STRATI_TYP': 1, u'DIP':
Hi Alexandre,
On Tue, Oct 22, 2013 at 10:58 AM, Alexandre Neto senhor.n...@gmail.comwrote:
Yes, I believe it is. At least the fact that only closing QGIS releases
the locks.
I've pushed a fix for this issue.
Please, confirm if it works now.
Cheers.
Giuseppe
You can even create several
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