def _process_args(self, *args, **kwargs):
"""
Process args and kwargs.
"""
if isinstance(args[0], TriContourSet):
C = args[0].cppContourGenerator
if self.levels is None:
self.levels = args[0].levels
else:
tri, z = self._contour_args(args, kwargs)
C = _tri.TriContourGenerator(tri.get_cpp_triangulation(), z)
self._mins = [tri.x.min(), tri.y.min()]
self._maxs = [tri.x.max(), tri.y.max()]
self.cppContourGenerator = C
def _process_args(self, *args, **kwargs):
"""
Process args and kwargs.
"""
if isinstance(args[0], TriContourSet):
C = args[0].cppContourGenerator
if self.levels is None:
self.levels = args[0].levels
else:
tri, z = self._contour_args(args, kwargs)
C = _tri.TriContourGenerator(tri.get_cpp_triangulation(), z)
x0 = tri.x.min()
x1 = tri.x.max()
y0 = tri.y.min()
y1 = tri.y.max()
self.ax.update_datalim([(x0, y0), (x1, y1)])
self.ax.autoscale_view()
self.cppContourGenerator = C
def _process_args(self, *args, **kwargs):
"""
Process args and kwargs.
"""
if isinstance(args[0], TriContourSet):
C = args[0]._contour_generator
if self.levels is None:
self.levels = args[0].levels
self.zmin = args[0].zmin
self.zmax = args[0].zmax
self._mins = args[0]._mins
self._maxs = args[0]._maxs
else:
from matplotlib import _tri
tri, z = self._contour_args(args, kwargs)
C = _tri.TriContourGenerator(tri.get_cpp_triangulation(), z)
self._mins = [tri.x.min(), tri.y.min()]
self._maxs = [tri.x.max(), tri.y.max()]
self._contour_generator = C
return kwargs
def test_internal_cpp_api():
# Following github issue 8197.
import matplotlib._tri as _tri
# C++ Triangulation.
with pytest.raises(TypeError) as excinfo:
triang = _tri.Triangulation()
excinfo.match(r'function takes exactly 7 arguments \(0 given\)')
with pytest.raises(ValueError) as excinfo:
triang = _tri.Triangulation([], [1], [[]], None, None, None, False)
excinfo.match(r'x and y must be 1D arrays of the same length')
x = [0, 1, 1]
y = [0, 0, 1]
with pytest.raises(ValueError) as excinfo:
triang = _tri.Triangulation(x, y, [[0, 1]], None, None, None, False)
excinfo.match(r'triangles must be a 2D array of shape \(\?,3\)')
tris = [[0, 1, 2]]
with pytest.raises(ValueError) as excinfo:
triang = _tri.Triangulation(x, y, tris, [0, 1], None, None, False)
excinfo.match(r'mask must be a 1D array with the same length as the ' +
r'triangles array')
with pytest.raises(ValueError) as excinfo:
triang = _tri.Triangulation(x, y, tris, None, [[1]], None, False)
excinfo.match(r'edges must be a 2D array with shape \(\?,2\)')
with pytest.raises(ValueError) as excinfo:
triang = _tri.Triangulation(x, y, tris, None, None, [[-1]], False)
excinfo.match(r'neighbors must be a 2D array with the same shape as the ' +
r'triangles array')
triang = _tri.Triangulation(x, y, tris, None, None, None, False)
with pytest.raises(ValueError) as excinfo:
triang.calculate_plane_coefficients([])
excinfo.match(r'z array must have same length as triangulation x and y ' +
r'arrays')
with pytest.raises(ValueError) as excinfo:
triang.set_mask([0, 1])
excinfo.match(r'mask must be a 1D array with the same length as the ' +
r'triangles array')
# C++ TriContourGenerator.
with pytest.raises(TypeError) as excinfo:
tcg = _tri.TriContourGenerator()
excinfo.match(r'function takes exactly 2 arguments \(0 given\)')
with pytest.raises(ValueError) as excinfo:
tcg = _tri.TriContourGenerator(triang, [1])
excinfo.match(r'z must be a 1D array with the same length as the x and ' +
r'y arrays')
z = [0, 1, 2]
tcg = _tri.TriContourGenerator(triang, z)
with pytest.raises(ValueError) as excinfo:
tcg.create_filled_contour(1, 0)
excinfo.match(r'filled contour levels must be increasing')
# C++ TrapezoidMapTriFinder.
with pytest.raises(TypeError) as excinfo:
trifinder = _tri.TrapezoidMapTriFinder()
excinfo.match(r'function takes exactly 1 argument \(0 given\)')
trifinder = _tri.TrapezoidMapTriFinder(triang)
with pytest.raises(ValueError) as excinfo:
trifinder.find_many([0], [0, 1])
excinfo.match(r'x and y must be array_like with same shape')