[Qgis-user] Trigger actions of CADDigitize plugin from pyqgis

[Tudorache, Marian]

Hi everyone,

I have a question about how to use CADDigitize plugin from pyqgis.

1.       I would like to get the active instance of this plugin from QgisInterface (iface). I understand when the plugin is installed there is a reference of this plugin recorded here (iface).
Is it possible to do this?

Thanks,
Marian

From: qgis-user-bounces at lists.osgeo.org [mailto:qgis-user-bounces at lists.osgeo.org] On Behalf Of lb
Sent: September-20-15 2:25 AM
To: qgis-user at lists.osgeo.org
Subject: Re: [Qgis-user] About QgsGeometry::buffer

Hi,

Buffer require some parameter since you can choose the "style" of buffer. You have some example on PostGis documentation (parameters are the same)
http://postgis.net/docs/ST_Buffer.html

QGis define this parameters in Settings->Options->Digitizing->Curve offset tool.

You can get this parameters via QSettings :
join = QSettings().value("Qgis/digitizing/offset_join_style", 0, type=int)
quad = QSettings().value("Qgis/digitizing/offset_quad_seg", 8, type=int)
endCap = quad
miter = QSettings().value("Qgis/digitizing/offset_miter_limit", 5, type=int)

Regards

l.bartoletti
Le 18/09/2015 23:12, Tudorache, Marian a écrit :
Hi everyone,

I would like to find more details about QgsGeometry::buffer with more styles.

In QGIS API Documentation there are two version of the buffer:
Simple version with distance and segments and with sytles.

The one with styles is defines as: ( distance, segments, endCapStyle, joinStyle, mitreLimit );

I do not understand the followings parameters:

endCapStyle: Round (1) / Flat (2) / Square (3) end cap style
joinStyle: Round (1) / Mitre (2) / Bevel (3) join style
mitreLimit: Limit on the mitre ratio used for very sharp corners

Does someone has some examples or recommend a book where to find more details please?
The QGIS API Documentation does not give me too much.


Thanks,
Marian

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