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fix xticks in plot viewer when zooming (issue #143) #144

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Mar 15, 2017
Merged

fix xticks in plot viewer when zooming (issue #143) #144

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26 changes: 14 additions & 12 deletions larray/viewer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1211,8 +1211,8 @@ def plot(self):

row_min, row_max, col_min, col_max = self._selection_bounds()
dim_names = self.model().xlabels[0]
xlabels = self.model().xlabels
ylabels = self.model().ylabels
xlabels = self.model().xlabels[1][col_min:col_max]
ylabels = self.model().ylabels[1:][row_min:row_max]

assert data.ndim == 2

Expand All @@ -1224,27 +1224,29 @@ def plot(self):
if data.shape[1] == 1:
# plot one column
xlabel = ','.join(dim_names[:-1])
xticklabels = ['\n'.join([str(ylabels[j][r]) for j in range(1, len(ylabels))])
for r in range(row_min, row_max)]
ax.plot(data[:, 0])
ax.set_ylabel(xlabels[1][col_min])
xticklabels = ['\n'.join([str(ylabels[c][r]) for c in range(len(ylabels))])
for r in range(row_max - row_min)]
xdata = np.arange(row_max - row_min, dtype=int)
ax.plot(xdata, data[:, 0])
ax.set_ylabel(xlabels[0])
else:
# plot each row as a line
xlabel = dim_names[-1]
xticklabels = [str(xlabels[1][c]) for c in range(col_min, col_max)]
xticklabels = [str(label) for label in xlabels]
xdata = np.arange(col_max - col_min, dtype=int)
for row in range(len(data)):
label = ','.join([str(ylabels[j][row_min + row])
for j in range(1, len(ylabels))])
ax.plot(data[row], label=label)
label = ','.join([str(label) for label in ylabels[row]])
ax.plot(xdata, data[row], label=label)

# set x axis
ax.set_xlabel(xlabel)
ax.set_xlim(0, len(xticklabels) - 1)
ax.set_xlim((xdata[0], xdata[-1]))
# we need to do that because matplotlib is smart enough to
# not show all ticks but a selection. However, that selection
# may include ticks outside the range of x axis
xticks = [t for t in ax.get_xticks().astype(int) if t <= len(xticklabels) - 1]
xticklabels = [xticklabels[j] for j in xticks]
xticklabels = [xticklabels[t] for t in xticks]
ax.set_xticks(xticks)
ax.set_xticklabels(xticklabels)

if data.shape[1] != 1:
Expand Down