def test_redraw_on_color_mapper_update(self):
# regression check for https://github.com/enthought/chaco/issues/220
npoints = 200
xs = numpy.linspace(-2 * numpy.pi, +2 * numpy.pi, npoints)
ys = numpy.linspace(-1.5 * numpy.pi, +1.5 * numpy.pi, npoints)
x, y = numpy.meshgrid(xs, ys)
z = y * x
index = GridDataSource(xdata=xs, ydata=ys)
index_mapper = GridMapper(range=DataRange2D(index))
color_source = ImageData(data=z, value_depth=1)
color_mapper = Spectral(DataRange1D(color_source))
cmap_plot = CMapImagePlot(
index=index,
index_mapper=index_mapper,
value=color_source,
value_mapper=color_mapper,
)
cmap_plot._window = window = mock.Mock(spec=AbstractWindow)
#when
cmap_plot.color_mapper.updated = True
# Then
window.redraw.assert_called_once_with()
def setUp(self):
# Set up plot component containing
xs = np.arange(0, 5)
ys = np.arange(0, 5)
# Add some fake 2D data for the box's component
index = GridDataSource(xdata=xs,
ydata=ys,
sort_order=('ascending', 'ascending'))
index_mapper = GridMapper(range=DataRange2D(index))
color_source = ImageData(data=np.ones(shape=(5, 5)), depth=1)
self.plot = CMapImagePlot(
index=index,
index_mapper=index_mapper,
value=color_source,
)
self.databox = DataBox(
component=self.plot,
data_position=[0, 0],
)
self.plot.overlays.append(self.databox)
def create_plot(self):
# Create the mapper, etc
self._image_index = GridDataSource(array([]),
array([]),
sort_order=("ascending",
"ascending"))
image_index_range = DataRange2D(self._image_index)
# self._image_index.on_trait_change(self._metadata_changed,
# "metadata_changed")
self._image_value = ImageData(data=array([]), value_depth=1)
image_value_range = DataRange1D(self._image_value)
# Create the colormapped scalar plot
self.plot = CMapImagePlot(
index=self._image_index,
index_mapper=GridMapper(range=image_index_range),
value=self._image_value,
value_mapper=self._cmap(image_value_range))
# Add a left axis to the plot
left = PlotAxis(orientation='left',
title="y",
mapper=self.plot.index_mapper._ymapper,
component=self.plot)
self.plot.overlays.append(left)
# Add a bottom axis to the plot
bottom = PlotAxis(orientation='bottom',
title="x",
mapper=self.plot.index_mapper._xmapper,
component=self.plot)
self.plot.overlays.append(bottom)
# Add some tools to the plot
self.plot.tools.append(PanTool(self.plot, constrain_key="shift"))
self.plot.overlays.append(
ZoomTool(component=self.plot, tool_mode="box", always_on=False))
# Create a colorbar
cbar_index_mapper = LinearMapper(range=image_value_range)
self.colorbar = ColorBar(index_mapper=cbar_index_mapper,
plot=self.plot,
padding_top=self.plot.padding_top,
padding_bottom=self.plot.padding_bottom,
padding_right=40,
resizable='v',
width=10)
# Create a container and add components
self.container = HPlotContainer(padding=40,
fill_padding=True,
bgcolor="white",
use_backbuffer=False)
self.container.add(self.colorbar)
self.container.add(self.plot)
class GridMapperTestCase(unittest.TestCase):
def setUp(self):
self.x_ary = array([5.0, 6.0, 7.0, 8.0, 9.0, 10.0])
self.y_ary = array([1.0, 1.0, 2.0, 2.0, 3.0, 3.0])
ds = GridDataSource(xdata=self.x_ary, ydata=self.y_ary)
r = DataRange2D(ds)
self.mapper = GridMapper(range=r)
def test_basic(self):
self.mapper.x_low_pos = 50
self.mapper.x_high_pos = 100
self.mapper.y_low_pos = 0
self.mapper.y_high_pos = 10
result = self.mapper.map_screen(transpose((self.x_ary, self.y_ary)))
assert_equal(result, [(50, 0), (60, 0), (70, 5), (80, 5), (90, 10),
(100, 10)])
def test_map_screen_scalar(self):
self.mapper.x_low_pos = 50
self.mapper.x_high_pos = 100
self.mapper.y_low_pos = 0
self.mapper.y_high_pos = 10
result = self.mapper.map_screen(transpose((6.0, 1.0)))
assert_equal(result, [[60, 0]])
def test_map_data(self):
self.mapper.x_low_pos = 50
self.mapper.x_high_pos = 100
self.mapper.y_low_pos = 0
self.mapper.y_high_pos = 10
screen_ary = array([(50, 0), (60, 0), (70, 5), (80, 5), (90, 10),
(100, 10)])
result = self.mapper.map_data(screen_ary)
assert_equal(result, transpose((self.x_ary, self.y_ary)))
def test_map_data_scalar(self):
self.mapper.x_low_pos = 50
self.mapper.x_high_pos = 100
self.mapper.y_low_pos = 0
self.mapper.y_high_pos = 10
screen_ary = (60, 0)
result = self.mapper.map_data(screen_ary)
assert_equal(result, [[6.0, 1.0]])
class GridMapperTestCase(unittest.TestCase):
def setUp(self):
self.x_ary = array([5.0, 6.0, 7.0, 8.0, 9.0, 10.0])
self.y_ary = array([1.0, 1.0, 2.0, 2.0, 3.0, 3.0])
ds = GridDataSource(xdata=self.x_ary, ydata=self.y_ary)
r = DataRange2D(ds)
self.mapper = GridMapper(range=r)
def test_basic(self):
self.mapper.x_low_pos=50
self.mapper.x_high_pos=100
self.mapper.y_low_pos=0
self.mapper.y_high_pos=10
result = self.mapper.map_screen(transpose((self.x_ary, self.y_ary)))
assert_equal(result, [(50,0), (60,0), (70,5),
(80,5), (90,10), (100,10)])
def test_map_screen_scalar(self):
self.mapper.x_low_pos=50
self.mapper.x_high_pos=100
self.mapper.y_low_pos=0
self.mapper.y_high_pos=10
result = self.mapper.map_screen(transpose((6.0, 1.0)))
assert_equal(result, [[60, 0]])
def test_map_data(self):
self.mapper.x_low_pos=50
self.mapper.x_high_pos=100
self.mapper.y_low_pos=0
self.mapper.y_high_pos=10
screen_ary = array([(50,0), (60,0), (70,5), (80,5), (90,10), (100,10)])
result = self.mapper.map_data(screen_ary)
assert_equal(result, transpose((self.x_ary, self.y_ary)))
def test_map_data_scalar(self):
self.mapper.x_low_pos=50
self.mapper.x_high_pos=100
self.mapper.y_low_pos=0
self.mapper.y_high_pos=10
screen_ary = (60, 0)
result = self.mapper.map_data(screen_ary)
assert_equal(result, [[6.0, 1.0]])
def test_basic(self):
x_ary = array([5.0, 6.0, 7.0, 8.0, 9.0, 10.0])
y_ary = array([1.0, 1.0, 2.0, 2.0, 3.0, 3.0])
ds = GridDataSource(xdata=x_ary, ydata=y_ary)
r = DataRange2D(ds)
mapper = GridMapper(range=r)
mapper.x_low_pos = 50
mapper.x_high_pos = 100
mapper.y_low_pos = 0
mapper.y_high_pos = 10
result = mapper.map_screen(transpose((x_ary, y_ary)))
assert_equal(result, [(50, 0), (60, 0), (70, 5), (80, 5), (90, 10),
(100, 10)])
def empty_image():
""" Returns empty image plot """
from chaco.api import ImageData, GridDataSource, GridMapper, DataRange2D, ImagePlot
image_source = ImageData.fromfile(config.IMG_NOCOMPLEX_PATH)
w, h = image_source.get_width(), image_source.get_height()
index = GridDataSource(np.arange(w), np.arange(h))
index_mapper = GridMapper(
range=DataRange2D(low=(0, 0), high=(w - 1, h - 1)))
image_plot = ImagePlot(index=index,
value=image_source,
index_mapper=index_mapper,
origin='top left')
return image_plot
def _corr_plot_default(self):
diag = self.covar.diagonal()
corr = self.covar / np.sqrt(np.outer(diag, diag))
N = len(diag)
value_range = DataRange1D(low=-1, high=1)
color_mapper = cmap(range=value_range)
index = GridDataSource()
value = ImageData()
mapper = GridMapper(range=DataRange2D(index),
y_low_pos=1.0,
y_high_pos=0.0)
index.set_data(xdata=np.arange(-0.5, N), ydata=np.arange(-0.5, N))
value.set_data(np.flipud(corr))
self.corr_data = value
cmap_plot = CMapImagePlot(index=index,
index_mapper=mapper,
value=value,
value_mapper=color_mapper,
padding=(40, 40, 100, 40))
yaxis = PlotAxis(
cmap_plot,
orientation='left',
tick_interval=1,
tick_label_formatter=lambda x: self.header[int(N - 1 - x)],
tick_generator=ShowAllTickGenerator(positions=np.arange(N)))
xaxis = PlotAxis(
cmap_plot,
orientation='top',
tick_interval=1,
tick_label_formatter=lambda x: self.header[int(x)],
tick_label_alignment='edge',
tick_generator=ShowAllTickGenerator(positions=np.arange(N)))
cmap_plot.overlays.append(yaxis)
cmap_plot.overlays.append(xaxis)
colorbar = ColorBar(
index_mapper=LinearMapper(range=cmap_plot.value_range),
plot=cmap_plot,
orientation='v',
resizable='v',
width=10,
padding=(40, 5, 100, 40))
container = HPlotContainer(bgcolor='transparent')
container.add(cmap_plot)
container.add(colorbar)
return container
def test_basic(self):
x_ary = array([5.0, 6.0, 7.0, 8.0, 9.0, 10.0])
y_ary = array([1.0, 1.0, 2.0, 2.0, 3.0, 3.0])
ds = GridDataSource(xdata=x_ary, ydata=y_ary)
r = DataRange2D(ds)
mapper = GridMapper(range=r)
mapper.x_low_pos=50
mapper.x_high_pos=100
mapper.y_low_pos=0
mapper.y_high_pos=10
result = mapper.map_screen(transpose((x_ary, y_ary)))
assert_equal(result, [(50,0), (60,0), (70,5),
(80,5), (90,10), (100,10)])
def image_histogram_plot_component(self):
xs = np.arange(0, len(self.im))
ys = np.arange(0, len(self.im[0]))
index = GridDataSource(xdata=xs,
ydata=ys,
sort_order=('ascending', 'ascending'))
index_mapper = GridMapper(range=DataRange2D(index))
color_source = ImageData(data=np.flipud(self.im), value_depth=1)
reversed_grays = reverse(Greys)
color_mapper = reversed_grays(DataRange1D(color_source))
plot = CMapImagePlot(
index=index,
index_mapper=index_mapper,
value=color_source,
value_mapper=color_mapper,
)
#: Add overlay for zoom
data_box_overlay = MyDataBox(
component=plot,
data_position=[0, 0],
data_bounds=self.data_bounds,
)
move_tool = MoveTool(component=data_box_overlay)
resize_tool = ResizeTool(component=data_box_overlay)
data_box_overlay.tools.append(move_tool)
data_box_overlay.tools.append(resize_tool)
data_box_overlay.on_trait_change(self.update_position, 'position')
data_box_overlay.on_trait_change(self.update_data_bounds, 'bounds')
#: Add to plot
plot.overlays.append(data_box_overlay)
return plot
def image_histogram_plot_component(self):
xs = np.arange(0, len(self.im))
ys = np.arange(0, len(self.im[0]))
index = GridDataSource(xdata=xs,
ydata=ys,
sort_order=('ascending', 'ascending'))
index_mapper = GridMapper(range=DataRange2D(index))
color_source = ImageData(data=self.im, value_depth=1)
reversed_grays = reverse(Greys)
color_mapper = reversed_grays(DataRange1D(color_source))
plot = CMapImagePlot(
index=index,
index_mapper=index_mapper,
value=color_source,
value_mapper=color_mapper,
orientation='h',
origin='top left',
)
self.data_box_overlay = DataBox(
component=plot,
data_position=[0, 0],
data_bounds=[self.my_data_bounds, self.my_data_bounds],
)
move_tool = MoveTool(component=self.data_box_overlay)
self.data_box_overlay.tools.append(move_tool)
self.data_box_overlay.on_trait_change(self.update_my_position,
'position')
#: Add to plot
plot.overlays.append(self.data_box_overlay)
return plot
def get_image_index_and_mapper(image):
h, w = image.shape[:2]
index = GridDataSource(np.arange(h+1), np.arange(w+1))
index_mapper = GridMapper(range=DataRange2D(low=(0, 0), high=(h, w)))
return index, index_mapper
def create_plot(self):
# Create the mapper, etc
self._image_index = GridDataSource(array([]),
array([]),
sort_order=("ascending","ascending"))
image_index_range = DataRange2D(self._image_index)
self._image_index.on_trait_change(self._metadata_changed,
"metadata_changed")
self._image_value = ImageData(data=array([]), value_depth=1)
image_value_range = DataRange1D(self._image_value)
# Create the contour plots
self.polyplot = ContourPolyPlot(index=self._image_index,
value=self._image_value,
index_mapper=GridMapper(range=
image_index_range),
color_mapper=\
self._cmap(image_value_range),
levels=self.num_levels)
self.lineplot = ContourLinePlot(index=self._image_index,
value=self._image_value,
index_mapper=GridMapper(range=
self.polyplot.index_mapper.range),
levels=self.num_levels)
# Add a left axis to the plot
left = PlotAxis(orientation='left',
title= "y",
mapper=self.polyplot.index_mapper._ymapper,
component=self.polyplot)
self.polyplot.overlays.append(left)
# Add a bottom axis to the plot
bottom = PlotAxis(orientation='bottom',
title= "x",
mapper=self.polyplot.index_mapper._xmapper,
component=self.polyplot)
self.polyplot.overlays.append(bottom)
# Add some tools to the plot
self.polyplot.tools.append(PanTool(self.polyplot,
constrain_key="shift"))
self.polyplot.overlays.append(ZoomTool(component=self.polyplot,
tool_mode="box", always_on=False))
self.polyplot.overlays.append(LineInspector(component=self.polyplot,
axis='index_x',
inspect_mode="indexed",
write_metadata=True,
is_listener=True,
color="white"))
self.polyplot.overlays.append(LineInspector(component=self.polyplot,
axis='index_y',
inspect_mode="indexed",
write_metadata=True,
color="white",
is_listener=True))
# Add these two plots to one container
contour_container = OverlayPlotContainer(padding=20,
use_backbuffer=True,
unified_draw=True)
contour_container.add(self.polyplot)
contour_container.add(self.lineplot)
# Create a colorbar
cbar_index_mapper = LinearMapper(range=image_value_range)
self.colorbar = ColorBar(index_mapper=cbar_index_mapper,
plot=self.polyplot,
padding_top=self.polyplot.padding_top,
padding_bottom=self.polyplot.padding_bottom,
padding_right=40,
resizable='v',
width=30)
self.pd = ArrayPlotData(line_index = array([]),
line_value = array([]),
scatter_index = array([]),
scatter_value = array([]),
scatter_color = array([]))
self.cross_plot = Plot(self.pd, resizable="h")
self.cross_plot.height = 100
self.cross_plot.padding = 20
self.cross_plot.plot(("line_index", "line_value"),
line_style="dot")
self.cross_plot.plot(("scatter_index","scatter_value","scatter_color"),
type="cmap_scatter",
name="dot",
color_mapper=self._cmap(image_value_range),
marker="circle",
marker_size=8)
self.cross_plot.index_range = self.polyplot.index_range.x_range
self.pd.set_data("line_index2", array([]))
self.pd.set_data("line_value2", array([]))
self.pd.set_data("scatter_index2", array([]))
self.pd.set_data("scatter_value2", array([]))
self.pd.set_data("scatter_color2", array([]))
self.cross_plot2 = Plot(self.pd, width = 140, orientation="v", resizable="v", padding=20, padding_bottom=160)
self.cross_plot2.plot(("line_index2", "line_value2"),
line_style="dot")
self.cross_plot2.plot(("scatter_index2","scatter_value2","scatter_color2"),
type="cmap_scatter",
name="dot",
color_mapper=self._cmap(image_value_range),
marker="circle",
marker_size=8)
self.cross_plot2.index_range = self.polyplot.index_range.y_range
# Create a container and add components
self.container = HPlotContainer(padding=40, fill_padding=True,
bgcolor = "white", use_backbuffer=False)
inner_cont = VPlotContainer(padding=0, use_backbuffer=True)
inner_cont.add(self.cross_plot)
inner_cont.add(contour_container)
self.container.add(self.colorbar)
self.container.add(inner_cont)
self.container.add(self.cross_plot2)
def setUp(self):
self.x_ary = array([5.0, 6.0, 7.0, 8.0, 9.0, 10.0])
self.y_ary = array([1.0, 1.0, 2.0, 2.0, 3.0, 3.0])
ds = GridDataSource(xdata=self.x_ary, ydata=self.y_ary)
r = DataRange2D(ds)
self.mapper = GridMapper(range=r)
def __init__(self, x, y, z):
super(ImagePlot, self).__init__()
self.pd_all = ArrayPlotData(imagedata=z)
#self.pd_horiz = ArrayPlotData(x=x, horiz=z[4, :])
#self.pd_vert = ArrayPlotData(y=y, vert=z[:,5])
self._imag_index = GridDataSource(xdata=x,
ydata=y,
sort_order=("ascending",
"ascending"))
index_mapper = GridMapper(range=DataRange2D(self._imag_index))
self._imag_index.on_trait_change(self._metadata_changed,
"metadata_changed")
self._image_value = ImageData(data=z, value_depth=1)
color_mapper = jet(DataRange1D(self._image_value))
self.color_plot = CMapImagePlot(index=self._imag_index,
index_mapper=index_mapper,
value=self._image_value,
value_mapper=color_mapper,
padding=20,
use_backbuffer=True,
unified_draw=True)
#Add axes to image plot
left = PlotAxis(orientation='left',
title="Frequency (GHz)",
mapper=self.color_plot.index_mapper._ymapper,
component=self.color_plot)
self.color_plot.overlays.append(left)
bottom = PlotAxis(orientation='bottom',
title="Time (us)",
mapper=self.color_plot.index_mapper._xmapper,
component=self.color_plot)
self.color_plot.overlays.append(bottom)
self.color_plot.tools.append(
PanTool(self.color_plot, constrain_key="shift"))
self.color_plot.overlays.append(
ZoomTool(component=self.color_plot,
tool_mode="box",
always_on=False))
#Add line inspector tool for horizontal and vertical
self.color_plot.overlays.append(
LineInspector(component=self.color_plot,
axis='index_x',
inspect_mode="indexed",
write_metadata=True,
is_listener=True,
color="white"))
self.color_plot.overlays.append(
LineInspector(component=self.color_plot,
axis='index_y',
inspect_mode="indexed",
write_metadata=True,
color="white",
is_listener=True))
myrange = DataRange1D(low=amin(z), high=amax(z))
cmap = jet
self.colormap = cmap(myrange)
# Create a colorbar
cbar_index_mapper = LinearMapper(range=myrange)
self.colorbar = ColorBar(index_mapper=cbar_index_mapper,
plot=self.color_plot,
padding_top=self.color_plot.padding_top,
padding_bottom=self.color_plot.padding_bottom,
padding_right=40,
resizable='v',
width=30) #, ytitle="Magvec (mV)")
#create horizontal line plot
self.horiz_cross_plot = Plot(self.pd_horiz, resizable="h")
self.horiz_cross_plot.height = 100
self.horiz_cross_plot.padding = 20
self.horiz_cross_plot.plot(("x", "horiz")) #,
#line_style="dot")
# self.cross_plot.plot(("scatter_index","scatter_value","scatter_color"),
# type="cmap_scatter",
# name="dot",
# color_mapper=self._cmap(image_value_range),
# marker="circle",
# marker_size=8)
self.horiz_cross_plot.index_range = self.color_plot.index_range.x_range
#create vertical line plot
self.vert_cross_plot = Plot(self.pd_vert,
width=140,
orientation="v",
resizable="v",
padding=20,
padding_bottom=160)
self.vert_cross_plot.plot(("y", "vert")) #,
# line_style="dot")
# self.vert_cross_plot.xtitle="Magvec (mV)"
# self.vertica_cross_plot.plot(("vertical_scatter_index",
# "vertical_scatter_value",
# "vertical_scatter_color"),
# type="cmap_scatter",
# name="dot",
# color_mapper=self._cmap(image_value_range),
# marker="circle",
# marker_size=8)
self.vert_cross_plot.index_range = self.color_plot.index_range.y_range
# Create a container and add components
self.container = HPlotContainer(padding=40,
fill_padding=True,
bgcolor="white",
use_backbuffer=False)
inner_cont = VPlotContainer(padding=0, use_backbuffer=True)
inner_cont.add(self.horiz_cross_plot)
inner_cont.add(self.color_plot)
self.container.add(self.colorbar)
self.container.add(inner_cont)
self.container.add(self.vert_cross_plot)
def setUp(self):
self.x_ary = array([5.0, 6.0, 7.0, 8.0, 9.0, 10.0])
self.y_ary = array([1.0, 1.0, 2.0, 2.0, 3.0, 3.0])
ds = GridDataSource(xdata=self.x_ary, ydata=self.y_ary)
r = DataRange2D(ds)
self.mapper = GridMapper(range=r)