pyfeyn2.render.pyx.blobs

Various blob shapes to represent generic interactions.

Module Contents

Classes

Blob	Base class for all blob-like objects in Feynman diagrams
Circle	A circular blob
Ellipse	An elliptical blob

Attributes

NamedBlob

class pyfeyn2.render.pyx.blobs.Blob

Bases: pyfeyn2.render.pyx.points.Point, pyfeyn2.render.pyx.utils.Visible

Base class for all blob-like objects in Feynman diagrams

Dysfunctional constructor, since this is an abstract base class.

setStrokeStyle(strokestyle)

Set the stroke style.

clearStrokeStyles()

Remove all the current stroke styles.

setFillStyle(fillstyle)

Set the fill style.

clearFillStyles()

Remove all the current fill styles.

addTrafo(trafo)

Add a transformation.

clearTrafos()

Remove transformations.

setPoints(points)

Set the points to which this blob is attached.

addLabel(text, displace=-0.15, angle=0, size=pyx.text.size.normalsize)

Add a label.

clearLabels()

Remove all current labels.

class pyfeyn2.render.pyx.blobs.Circle(x=None, y=None, center=None, radius=None, fill=[pyx.color.rgb.white], stroke=[pyx.color.rgb.black], points=None)

Bases: Blob

A circular blob

Constructor.

blobshape = circle

getPath()

Get the path of this circle blob.

draw(canvas)

Draw this circle blob.

class pyfeyn2.render.pyx.blobs.Ellipse(x=None, y=None, center=None, xradius=None, yradius=None, fill=[pyx.color.rgb.white], stroke=[pyx.color.rgb.black], points=None)

Bases: Blob

An elliptical blob

Constructor.

blobshape = ellipse

getXRadius()

Get the component of the radius in the x-direction.

setXRadius(xrad)

Set the component of the radius in the x-direction.

getYRadius()

Get the component of the radius in the y-direction.

setYRadius(yrad)

Set the component of the radius in the y-direction.

getXYRadius()

Get the components of the radius in the x and y directions at the same time.

setXYRadius(xrad, yrad)

Get the components of the radius in the x and y directions at the same time.

getPath()

Get the path for this blob.

draw(canvas)

Draw this blob on the given canvas.

pyfeyn2.render.pyx.blobs.NamedBlob