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Plots: Add title and axis titles; scatterplot option for logarithmic axes [FEATURE] #59366

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merged 14 commits into from
Nov 29, 2024
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Plots: Add title and axis titles; scatterplot option for logarithmic axes [FEATURE] #59366

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aa6b869
Add title, xaxis_title, yaxis_title to BarPlot
florianneukirchen Sep 27, 2024
986e0dd
Add title, xaxis_title, yaxis_title to BoxPlot
florianneukirchen Sep 27, 2024
3937c42
Parameter value must be numeric
florianneukirchen Sep 27, 2024
917dbbd
Add title and axis titles to Vector layer Scatterplot3D
florianneukirchen Sep 27, 2024
3ff6b89
Add title, axis titles and option for log axis to Vector layer Scatte…
florianneukirchen Sep 27, 2024
d0d70ef
Was setting the wrong axis titles to None
florianneukirchen Sep 28, 2024
776aa3b
Axis titles default to the names of the field instead of not showing …
florianneukirchen Sep 28, 2024
7325917
Remove blank line
florianneukirchen Sep 30, 2024
d7f459a
Add @florianneukirchen to CONTRIBUTORS
florianneukirchen Oct 1, 2024
d072ef6
Allow to show no axis titles by entering a single space
florianneukirchen Nov 7, 2024
1b03d34
Change strings as suggested in code review
florianneukirchen Nov 13, 2024
57b04bf
Change strings as suggested in code review part 2
florianneukirchen Nov 13, 2024
57763c9
Add comment as suggested in code review
florianneukirchen Nov 15, 2024
8a75d24
Update python/plugins/processing/algs/qgis/VectorLayerScatterplot3D.py
nyalldawson Nov 28, 2024
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1 change: 1 addition & 0 deletions doc/CONTRIBUTORS
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ Even Rouault
Fernando Pacheco
Florian El Ahdab
Florian Hof
Florian Neukirchen
Frank Warmerdam
Germán Carrillo
Giovanni Manghi
Expand Down
45 changes: 43 additions & 2 deletions python/plugins/processing/algs/qgis/BarPlot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,8 @@
QgsProcessingParameterFeatureSource,
QgsProcessingParameterField,
QgsProcessingException,
QgsProcessingParameterFileDestination)
QgsProcessingParameterFileDestination,
QgsProcessingParameterString,)
from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
from processing.tools import vector

Expand All @@ -37,6 +38,9 @@ class BarPlot(QgisAlgorithm):
OUTPUT = 'OUTPUT'
NAME_FIELD = 'NAME_FIELD'
VALUE_FIELD = 'VALUE_FIELD'
TITLE = 'TITLE'
XAXIS_TITLE = "XAXIS_TITLE"
YAXIS_TITLE = "YAXIS_TITLE"

def group(self):
return self.tr('Plots')
Expand All @@ -59,6 +63,21 @@ def initAlgorithm(self, config=None):

self.addParameter(QgsProcessingParameterFileDestination(self.OUTPUT, self.tr('Bar plot'), self.tr('HTML files (*.html)')))

self.addParameter(QgsProcessingParameterString(
self.TITLE,
self.tr('Title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.XAXIS_TITLE,
self.tr('X-axis title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.YAXIS_TITLE,
self.tr('Y-axis title'),
optional=True))

def name(self):
return 'barplot'

Expand All @@ -83,6 +102,21 @@ def processAlgorithm(self, parameters, context, feedback):
namefieldname = self.parameterAsString(parameters, self.NAME_FIELD, context)
valuefieldname = self.parameterAsString(parameters, self.VALUE_FIELD, context)

title = self.parameterAsString(parameters, self.TITLE, context)
xaxis_title = self.parameterAsString(parameters, self.XAXIS_TITLE, context)
yaxis_title = self.parameterAsString(parameters, self.YAXIS_TITLE, context)

if title.strip() == "":
title = None
if xaxis_title == "":
xaxis_title = namefieldname
elif xaxis_title == " ":
xaxis_title = None
if yaxis_title == "":
yaxis_title = valuefieldname
elif yaxis_title == " ":
yaxis_title = None

output = self.parameterAsFileOutput(parameters, self.OUTPUT, context)

values = vector.values(source, valuefieldname)
Expand All @@ -91,6 +125,13 @@ def processAlgorithm(self, parameters, context, feedback):

data = [go.Bar(x=x_var,
y=values[valuefieldname])]
plt.offline.plot(data, filename=output, auto_open=False)

fig = go.Figure(
data=data,
layout_title_text=title,
layout_xaxis_title=xaxis_title,
layout_yaxis_title=yaxis_title)

fig.write_html(output)

return {self.OUTPUT: output}
44 changes: 42 additions & 2 deletions python/plugins/processing/algs/qgis/BoxPlot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,8 @@
QgsProcessingParameterField,
QgsProcessingParameterEnum,
QgsProcessingParameterFileDestination,
QgsFeatureRequest)
QgsFeatureRequest,
QgsProcessingParameterString)
from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
from processing.tools import vector

Expand All @@ -39,6 +40,9 @@ class BoxPlot(QgisAlgorithm):
NAME_FIELD = 'NAME_FIELD'
VALUE_FIELD = 'VALUE_FIELD'
MSD = 'MSD'
TITLE = 'TITLE'
XAXIS_TITLE = "XAXIS_TITLE"
YAXIS_TITLE = "YAXIS_TITLE"

def group(self):
return self.tr('Plots')
Expand Down Expand Up @@ -69,6 +73,21 @@ def initAlgorithm(self, config=None):
self.tr('Additional Statistic Lines'),
options=msd, defaultValue=0))

self.addParameter(QgsProcessingParameterString(
self.TITLE,
self.tr('Title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.XAXIS_TITLE,
self.tr('X-axis title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.YAXIS_TITLE,
self.tr('Y-axis title'),
optional=True))

self.addParameter(QgsProcessingParameterFileDestination(self.OUTPUT, self.tr('Box plot'), self.tr('HTML files (*.html)')))

def name(self):
Expand All @@ -95,6 +114,21 @@ def processAlgorithm(self, parameters, context, feedback):
namefieldname = self.parameterAsString(parameters, self.NAME_FIELD, context)
valuefieldname = self.parameterAsString(parameters, self.VALUE_FIELD, context)

title = self.parameterAsString(parameters, self.TITLE, context)
xaxis_title = self.parameterAsString(parameters, self.XAXIS_TITLE, context)
yaxis_title = self.parameterAsString(parameters, self.YAXIS_TITLE, context)

if title.strip() == "":
title = None
if xaxis_title == "":
xaxis_title = namefieldname
elif xaxis_title == " ":
xaxis_title = None
if yaxis_title.strip() == "":
yaxis_title = valuefieldname
elif yaxis_title == " ":
yaxis_title = None

output = self.parameterAsFileOutput(parameters, self.OUTPUT, context)

values = vector.values(source, valuefieldname)
Expand All @@ -115,6 +149,12 @@ def processAlgorithm(self, parameters, context, feedback):
y=values[valuefieldname],
boxmean=msd)]

plt.offline.plot(data, filename=output, auto_open=False)
fig = go.Figure(
data=data,
layout_title_text=title,
layout_xaxis_title=xaxis_title,
layout_yaxis_title=yaxis_title)

fig.write_html(output)

return {self.OUTPUT: output}
4 changes: 3 additions & 1 deletion python/plugins/processing/algs/qgis/MeanAndStdDevPlot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,9 @@ def initAlgorithm(self, config=None):
self.tr('Category name field'), parentLayerParameterName=self.INPUT,
type=QgsProcessingParameterField.DataType.Any))
self.addParameter(QgsProcessingParameterField(self.VALUE_FIELD,
self.tr('Value field'), parentLayerParameterName=self.INPUT))
self.tr('Value field'),
parentLayerParameterName=self.INPUT,
type=QgsProcessingParameterField.DataType.Numeric))

self.addParameter(QgsProcessingParameterFileDestination(self.OUTPUT, self.tr('Plot'), self.tr('HTML files (*.html)')))

Expand Down
68 changes: 66 additions & 2 deletions python/plugins/processing/algs/qgis/VectorLayerScatterplot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,10 @@
from qgis.core import (QgsProcessingException,
QgsProcessingParameterFeatureSource,
QgsProcessingParameterField,
QgsProcessingParameterFileDestination)
QgsProcessingParameterFileDestination,
QgsProcessingParameterString,
QgsProcessingParameterBoolean)

from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
from processing.tools import vector

Expand All @@ -35,6 +38,11 @@ class VectorLayerScatterplot(QgisAlgorithm):
OUTPUT = 'OUTPUT'
XFIELD = 'XFIELD'
YFIELD = 'YFIELD'
TITLE = 'TITLE'
XAXIS_TITLE = "XAXIS_TITLE"
YAXIS_TITLE = "YAXIS_TITLE"
XAXIS_LOG = "XAXIS_LOG"
YAXIS_LOG = "YAXIS_LOG"

def group(self):
return self.tr('Plots')
Expand All @@ -57,6 +65,33 @@ def initAlgorithm(self, config=None):
parentLayerParameterName=self.INPUT,
type=QgsProcessingParameterField.DataType.Numeric))

self.addParameter(QgsProcessingParameterString(
self.TITLE,
self.tr('Title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.XAXIS_TITLE,
self.tr('X-axis title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.YAXIS_TITLE,
self.tr('Y-axis title'),
optional=True))

self.addParameter(QgsProcessingParameterBoolean(
self.XAXIS_LOG,
self.tr('Use logarithmic scale for x-axis'),
defaultValue=False,
optional=True))

self.addParameter(QgsProcessingParameterBoolean(
self.YAXIS_LOG,
self.tr('Use logarithmic scale for y-axis'),
defaultValue=False,
optional=True))

self.addParameter(QgsProcessingParameterFileDestination(self.OUTPUT, self.tr('Scatterplot'), self.tr('HTML files (*.html)')))

def name(self):
Expand All @@ -83,12 +118,41 @@ def processAlgorithm(self, parameters, context, feedback):
xfieldname = self.parameterAsString(parameters, self.XFIELD, context)
yfieldname = self.parameterAsString(parameters, self.YFIELD, context)

title = self.parameterAsString(parameters, self.TITLE, context)
xaxis_title = self.parameterAsString(parameters, self.XAXIS_TITLE, context)
yaxis_title = self.parameterAsString(parameters, self.YAXIS_TITLE, context)
xaxis_log = self.parameterAsBool(parameters, self.XAXIS_LOG, context)
yaxis_log = self.parameterAsBool(parameters, self.YAXIS_LOG, context)

if title.strip() == "":
title = None
if xaxis_title == "":
xaxis_title = xfieldname
elif xaxis_title == " ":
xaxis_title = None
if yaxis_title == "":
yaxis_title = yfieldname
elif yaxis_title == " ":
yaxis_title = None

output = self.parameterAsFileOutput(parameters, self.OUTPUT, context)

values = vector.values(source, xfieldname, yfieldname)
data = [go.Scatter(x=values[xfieldname],
y=values[yfieldname],
mode='markers')]
plt.offline.plot(data, filename=output, auto_open=False)
fig = go.Figure(
data=data,
layout_title_text=title,
layout_xaxis_title=xaxis_title,
layout_yaxis_title=yaxis_title)

if xaxis_log:
fig.update_xaxes(type="log")

if yaxis_log:
fig.update_yaxes(type="log")

fig.write_html(output)

return {self.OUTPUT: output}
55 changes: 52 additions & 3 deletions python/plugins/processing/algs/qgis/VectorLayerScatterplot3D.py
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,9 @@
from qgis.core import (QgsProcessingParameterFeatureSource,
QgsProcessingParameterField,
QgsProcessingParameterFileDestination,
QgsProcessingException)
QgsProcessingException,
QgsProcessingParameterString)

from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm

from processing.tools import vector
Expand All @@ -37,6 +39,10 @@ class VectorLayerScatterplot3D(QgisAlgorithm):
XFIELD = 'XFIELD'
YFIELD = 'YFIELD'
ZFIELD = 'ZFIELD'
TITLE = 'TITLE'
XAXIS_TITLE = "XAXIS_TITLE"
YAXIS_TITLE = "YAXIS_TITLE"
ZAXIS_TITLE = "ZAXIS_TITLE"

def group(self):
return self.tr('Plots')
Expand All @@ -63,7 +69,27 @@ def initAlgorithm(self, config=None):
parentLayerParameterName=self.INPUT,
type=QgsProcessingParameterField.DataType.Numeric))

self.addParameter(QgsProcessingParameterFileDestination(self.OUTPUT, self.tr('Histogram'), self.tr('HTML files (*.html)')))
self.addParameter(QgsProcessingParameterString(
self.TITLE,
self.tr('Title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.XAXIS_TITLE,
self.tr('X-axis title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.YAXIS_TITLE,
self.tr('Y-axis title'),
optional=True))

self.addParameter(QgsProcessingParameterString(
self.ZAXIS_TITLE,
self.tr('Z-axis title'),
optional=True))

self.addParameter(QgsProcessingParameterFileDestination(self.OUTPUT, self.tr('Scatterplot 3D'), self.tr('HTML files (*.html)')))

def name(self):
return 'scatter3dplot'
Expand All @@ -90,6 +116,22 @@ def processAlgorithm(self, parameters, context, feedback):
yfieldname = self.parameterAsString(parameters, self.YFIELD, context)
zfieldname = self.parameterAsString(parameters, self.ZFIELD, context)

title = self.parameterAsString(parameters, self.TITLE, context)
xaxis_title = self.parameterAsString(parameters, self.XAXIS_TITLE, context)
yaxis_title = self.parameterAsString(parameters, self.YAXIS_TITLE, context)
zaxis_title = self.parameterAsString(parameters, self.ZAXIS_TITLE, context)

if title.strip() == "":
title = None
# Passing None for axis titles to Plotly does not work in this case: Unlike in 2D charts, Plotly would use x, y, z as axis titles.
# If our users enter space, we still get invisible axes titles, resulting in the same behavoir as for the other algs.
if xaxis_title == "":
xaxis_title = xfieldname
if yaxis_title == "":
yaxis_title = yfieldname
if zaxis_title == "":
zaxis_title = zfieldname

output = self.parameterAsFileOutput(parameters, self.OUTPUT, context)

values = vector.values(source, xfieldname, yfieldname, zfieldname)
Expand All @@ -100,6 +142,13 @@ def processAlgorithm(self, parameters, context, feedback):
z=values[zfieldname],
mode='markers')]

plt.offline.plot(data, filename=output, auto_open=False)
fig = go.Figure(
data=data,
layout_title_text=title,
layout_scene_xaxis_title=xaxis_title,
layout_scene_yaxis_title=yaxis_title,
layout_scene_zaxis_title=zaxis_title)

fig.write_html(output)

return {self.OUTPUT: output}
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