[Qgis-developer] Re: Draw a single point
Germán Carrillo
carrillo.german at gmail.com
Thu Dec 10 15:30:58 EST 2009
I guess QgsVertexMarker just works with the current map canvas reference
system.
I don't know if this is what you ask.
Germán.
2009/12/10 motta.luiz at gmail.com <motta.luiz at gmail.com>
> German,
>
>
> VertexMarker have projection (core.QgsCoordinateReferenceSystem) ?
> If have is default, how happend the temporaly layer
>
> Regards,
> Luiz
>
> Germán Carrillo escreveu:
>
>> I guess this can help you:
>>
>> /self.marker = QgsVertexMarker( self.canvas )
>> /
>> /self.marker.setCenter( QgsPoint( x, y ) ) /
>> /self.marker.setIconType( 1 ) /
>> /self.marker.setIconSize( 10 ) /
>> /self.marker.setColor( QColor( 255,0,0,255 ) ) /
>> /self.marker.setPenWidth ( 1 ) /
>>
>> As you see, just define the marker with your canvas as parent and set the
>> properties.
>>
>> Regards.
>>
>> Germán
>>
>> El 10 de diciembre de 2009 14:46, sergio cavalcante <
>> sergio.cavalcante at gmail.com <mailto:sergio.cavalcante at gmail.com>>
>> escribió:
>>
>>
>> Thanks for your reply, Germán.
>>
>> I'll study the class. Do you know where I may find some sample of
>> its usage?
>>
>> Best Regards,
>> ------------------------------
>> Sérgio Cavalcante
>>
>>
>>
>>
>> 2009/12/10 Germán Carrillo <carrillo.german at gmail.com
>> <mailto:carrillo.german at gmail.com>>:
>>
>> > Hi Sergio.
>> >
>> > Take a look at the QgsVertexMarker class. This way you can add
>> points to the
>> > map canvas.
>> >
>> > Regards.
>> >
>> > Germán
>> >
>> > -------------------------------
>> > [1] http://doc.qgis.org/head/classQgsVertexMarker.html
>> >
>> >
>> > 2009/12/10 sergio cavalcante <sergio.cavalcante at gmail.com
>> <mailto:sergio.cavalcante at gmail.com>>
>>
>> >>
>> >> Hello Guys,
>> >> Any Ideas?
>> >> Just plot a single pixel at a specific coordinate?
>> >>
>> >> Best Regards,
>> >> ------------------------------
>> >> Sérgio Cavalcante
>> >>
>> >>
>> >>
>> >>
>> >> On Tue, Dec 8, 2009 at 4:57 PM, sergio cavalcante
>> >> <sergio.cavalcante at gmail.com
>> <mailto:sergio.cavalcante at gmail.com>> wrote:
>> >> > People.
>> >> > I have a qmapcanvas. I just need to draw a single point in
>> any pixel
>> >> > at the mapcanvas and delete when I need.
>> >> > Is that possible?
>> >> >
>> >> > Best regards,
>> >> > ------------------------------
>> >> > Sérgio Cavalcante
>> >> >
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