[Qgis-developer] Re: Draw a single point

[Germán Carrillo]

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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