#!/usr/bin/env python3.8
# coding: latin-1
# (c) Massachusetts Institute of Technology 2015-2018
# (c) Brian Teague 2018-2022
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
cytoflowgui.workflow.operations.polygon
---------------------------------------
"""
from traits.api import provides, Instance, Str, observe, List, Float
from cytoflow.operations.polygon import PolygonOp, ScatterplotPolygonSelectionView
import cytoflow.utility as util
from ..views import IWorkflowView, WorkflowView, ScatterplotPlotParams
from ..serialization import camel_registry, traits_str, traits_repr, dedent
from .operation_base import IWorkflowOperation, WorkflowOperation
PolygonOp.__repr__ = traits_repr
[docs]@provides(IWorkflowView)
class PolygonSelectionView(WorkflowView, ScatterplotPolygonSelectionView):
op = Instance(IWorkflowOperation, fixed = True)
plot_params = Instance(ScatterplotPlotParams, ())
_vertices = List((Float, Float), status = True)
# data flow: user choose polygon. upon double click, the remote
# canvas calls _onselect, sets _vertices. _vertices is copied back to
# local view (because it's "status = True"). _update_vertices is called,
# and because self.interactive is false, then the operation is updated. the
# operation's vertices is sent back to the remote operation (because
# "apply = True"), where the remote operation is updated.
def _onselect(self, vertices):
self._vertices = vertices
@observe('_vertices')
def _update_vertices(self, _):
if not self.interactive:
self.op.vertices = self._vertices
@observe('xchannel,ychannel,xscale,yscale', post_init = True)
def _reset_polygon(self, _):
self._vertices = []
self.op.vertices = []
[docs] def clear_estimate(self):
# no-op
return
[docs] def get_notebook_code(self, idx):
view = ScatterplotPolygonSelectionView()
view.copy_traits(self, view.copyable_trait_names())
plot_params_str = traits_str(self.plot_params)
return dedent("""
op_{idx}.default_view({traits}).plot(ex_{prev_idx}{plot_params})
"""
.format(idx = idx,
traits = traits_str(view),
prev_idx = idx - 1,
plot_params = ", " + plot_params_str if plot_params_str else ""))
[docs]@provides(IWorkflowOperation)
class PolygonWorkflowOp(WorkflowOperation, PolygonOp):
name = Str(apply = True)
xchannel = Str(apply = True)
ychannel = Str(apply = True)
vertices = List((Float, Float), apply = True)
# there's a bit of a subtlety here: if the vertices were
# selected on a plot with scaled axes, we need to apply that
# scale function to both the vertices and the data before
# looking for path membership
xscale = util.ScaleEnum(apply = True)
yscale = util.ScaleEnum(apply = True)
[docs] def default_view(self, **kwargs):
return PolygonSelectionView(op = self, **kwargs)
[docs] def get_notebook_code(self, idx):
op = PolygonOp()
op.copy_traits(self, op.copyable_trait_names())
return dedent("""
op_{idx} = {repr}
ex_{idx} = op_{idx}.apply(ex_{prev_idx})
"""
.format(repr = repr(op),
idx = idx,
prev_idx = idx - 1))
### Serialization
@camel_registry.dumper(PolygonWorkflowOp, 'polygon', version = 1)
def _dump(op):
return dict(name = op.name,
xchannel = op.xchannel,
ychannel = op.ychannel,
vertices = op.vertices,
xscale = op.xscale,
yscale = op.yscale)
@camel_registry.loader('polygon', version = 1)
def _load(data, version):
data['vertices'] = [(v[0], v[1]) for v in data['vertices']]
return PolygonWorkflowOp(**data)
@camel_registry.dumper(PolygonSelectionView, 'polygon-view', version = 2)
def _dump_view(view):
return dict(op = view.op,
huefacet = view.huefacet,
subset_list = view.subset_list,
plot_params = view.plot_params,
current_plot = view.current_plot)
@camel_registry.dumper(PolygonSelectionView, 'polygon-view', version = 1)
def _dump_view_v1(view):
return dict(op = view.op,
huefacet = view.huefacet,
subset_list = view.subset_list)
@camel_registry.loader('polygon-view', version = any)
def _load_view(data, version):
return PolygonSelectionView(**data)