traceVisual

Module Contents

Classes

Functions

Attributes

default_colormap

_normalize_colors(z)

class TraceVisual(theData, theWGPlot, highlight_last)

Bases: PyQt5.QtCore.QObject

Defines a trace in a graph.

class _ModifiedPaintElem

Hidden class to manage brushes or pens

add_modified_paintElem(index, newPaintElem)

modify_paintElems(paintElemsIn_List)

Apply transformation to paintElemsIn_List.

Param:paintElemsIn_List: list of brushes or pens to modify Returns:False if nothing has been modified, True is something has been modified

reset_paintElem(index)

Remove transformation of point index

reset()

signal_must_update

hide_points()

Hide all the points

get_color()

Get colour of the trace, return tuple (r,g,b)

set_color(color)

Set colour of the trace, argument as tuple (r,g,b)

get_base_symbol_brush()

Get symbol brush configured for this trace, return pg.QBrush

get_base_pen()

Get pen configured for this trace, return pg.QPen

get_base_symbol_pen()

Get symbol pen configured for this trace, return`pg.QPen`

get_base_symbol()

Get base symbol configured for this trace, return str of the symbol (e.g. ‘o’)

get_symbol(size)

Get actual symbols for the trace. If the symbols have been modified: return a list which maps each points to a symbol. Otherwise: return :meth:TraceVisual.get_base_symbol()

updateTrace()

Forces the trace to refresh.

get_length()

Return number of data to plot

hide()

Hides the trace

show()

Shows the trace

toggle(boolean)

Toggle the trace (hide/show)

get_data()

Get data to plot Data

get_brushes(size)

Get actual brushes for the trace (=symbol filling). return a list which maps each points to a symbol brush

set_brush(indexPoint, newbrush, update=True)

Set the symbol brush for a specific point:

Parameters:

• indexPoint – Index of the point (in the graph) to modify
• newbrush – either QBrush or tuple (r, g, b) of the new brush
• update – if True, update the trace afterwards. This is slow operation.

set_symbol(indexPoint, newSymbol, update=True)

Set the symbol shape for a specific point:

Parameters:

• indexPoint – Index of the point (in the graph) to modify
• newSymbol – string of the new symbol (e.g.: ‘o’)
• update – if True, update the trace afterwards. This is slow operation.

set_brushes(list_indexPoint, list_newbrush, update=True)

Same as set_brush() but by taking a list as input

reset_brush(indexPoint, update=True)

Reset the brush of the point indexpoint

reset_brushes(list_indexPoint, update=True)

Same as reset_brush() but by taking a list as input

reset_all_brushes(update=True)

Reset all the brushes

reset_symbol(indexPoint, update=True)

Reset the symbol shape of the point indexpoint

get_symbolPens(size)

Get actual symbol pens for the trace (=symbol outline). return a list which maps each points to a symbol pen

set_symbolPen(indexPoint, newPen, update=True)

Set the symbol shape for a specific point:

Parameters:

• indexPoint – Index of the point (in the graph) to modify
• newPen – QPen item or tuple of the color (r,g,b)
• update – if True, update the trace afterwards. This is slow operation.

set_symbolPens(list_indexPoint, list_newpens, update=True)

Same as set_symbolPen() but by taking a list as input

reset_symbolPen(indexPoint, update=True)

Reset the symbol pen of the point indexpoint

reset_symbolPens(list_indexPoint, update=True)

Same as reset_symbolPen() but by taking a list as input

reset_all_symbolPens(update=True)

Reset all the symbol pens

get_point(indexPoint)

Return object pyqtgraph.SpotItem