a Sic@sXdZddlZddlmZddlZddlmZddlZddlm Z m Z ddl m Z ddl mZddlmZddlmZddlmZddlmZddlmZddlmZddlmZddl m!Z"ddl#m$Z%Gdddej&Z'd d Z(Gd d d Z)d dZ*ddZ+e j,j-dde j.Gdddej/e)Z0e j.Gddde0Z1e j,j-de j,j2ddS)zG Classes to support contour plotting and labelling for the Axes class. N)Integral)ma)_api _docstring) MouseButtoncs eZdZdZfddZZS) ClabelTextz Unlike the ordinary text, the get_rotation returns an updated angle in the pixel coordinate assuming that the input rotation is an angle in data coordinate (or whatever transform set). cs$|tg|g\}|SN) get_transformtransform_anglessuper get_rotation get_position)selfZ new_angle __class__N/var/www/html/django/DPS/env/lib/python3.9/site-packages/matplotlib/contour.pyr )szClabelText.get_rotation)__name__ __module__ __qualname____doc__r __classcell__rrrrr"srcCs|jjj}|jdk}|jdk}|r.|jtjks<|rF|jdvrF|n~|rV|jtj ksd|rz|jdvrz|s| | nJ|r|jtj ks|r|jdur|j |jkr|j|j|jd||d| dS)Nbutton_press_eventkey_press_event)escapeenter)Z backspacedeleteF) transforminlineinline_spacing)axesfigurecanvasnamebuttonrMIDDLEkeyZstop_event_loopRIGHT pop_labeldrawLEFTinaxesadd_label_nearxy)csrreventr"Z is_buttonis_keyrrr_contour_labeler_event_handler/s6      r2c @seZdZdZd+dddddddddd ddZd d Zd d Zd dZe dddZ ddZ ddZ ddZ d,ddZddZddZddZd d!Zd"d#Zd-d$d%Zd.d'd(Zd)d*ZdS)/ContourLabelerz7Mixin to provide labelling capability to `.ContourSet`.NTF) fontsizerrfmtcolorsuse_clabeltextmanual rightside_upzorderc  Cs |durtjdd}|||_||_||_| |_| durJd|j|_n| |_|durr|j }t t t |j } nht |} gg} }t|j D]$\} }|| vr| | ||qt |t | krtd| d|j ||_| |_t|_|j||j}|gt ||_|dur:||_t|j |j|_nsz+ContourLabeler.too_close..)rwrd)rr-r.lwrr~r too_closes zContourLabeler.too_closecCsF|jj}|}tjdd||j||j||j||j d |j S)z/Return the width of the *nth* label, in pixels.rr!sizeZfontproperties) r r! _get_renderertextTextget_textrTrHrZrXget_window_extentwidth)rnthfigrendererrrr_get_nth_label_widthsz#ContourLabeler._get_nth_label_widthz3.5cCsXt|ts|||}|jj}|}tjdd||||jd |j }|d|j 9}|S)z(Return the width of the label in points.rrH) isinstancestrrr r!rrrrXrrdpi)rrpr6fsizerrrrrrget_label_widths   zContourLabeler.get_label_widthcCs2||||||j||jjdS)z1Set the label properties - color, fontsize, text.N)set_text set_colorZset_fontpropertiesrX set_clip_boxr bbox)rlabelrcolorrrrset_label_propss   zContourLabeler.set_label_propscCsht|tr|St|tr$||dStt|ddrL|g|j|dSt|r\||S||SdS)zGet the text of the label.z%1.3f format_ticksNrB)rrdictgetcallablegetattrrrT)rrpr6rrrrs   zContourLabeler.get_textcCst|}|dkr"tt||nd}|dkr2|nt|}t|dddf||f}t|dddf||f}|ddddf}|ddddf} |ddddf} |ddddf} ||| | | || |} t| | | |} tjddd$t| | jdd}Wdn1s00Y|d}t |}t ||dD]6}|||f|||f}}| |||s\qq\||||||fS) zX Find good place to draw a label (relatively flat part of the contour). r{NrrBignore)divideinvalidrsr=) rOintr\ceilresizehypoterrstateabssumargsortrRr)rrxryZctr_sizeZn_blocks block_sizexxyyZyfirstZylastZxfirstZxlastsl distancesZhbsizeZadistidxr-r.rrr locate_label(s( 4  zContourLabeler.locate_labelc s|dur g}|d}t|}|rpt||d|d|dg}t|rlt||d|d|dg}d}tj|jdtdtj|dd}tt |dddf|dddfdd<|t | |g|rt ddgn t fdd |j D\\}\} t t| |} |jrL| d d d } g} t|rt | |gtjttddd } t| dtt| dtg} | ddkr܇fd d|j D} | ddkrfdd|j D}|rFtdd | Dr| t||| d| dd| gn`| ddkrx| t|d| dd| g| ddkr| t||| ddg| | fS)a Calculate the appropriate label rotation given the linecontour coordinates in screen units, the index of the label location and the label width. If *lc* is not None or empty, also break contours and compute inlining. *spacing* is the empty space to leave around the label, in pixels. Both tasks are done together to avoid calculating path lengths multiple times, which is relatively costly. The method used here involves computing the path length along the contour in pixel coordinates and then looking approximately (label width / 2) away from central point to determine rotation and then to break contour if desired. Ng@rBr{rdtypersc3s&|]}tt|VqdSr)r\diffinterp)r|Zslc_coldpplxirrrzsz;ContourLabeler.calc_label_rot_and_inline..Z)leftrightcsg|]}td|qS)rr\rr|Zlc_colrrrr z.csg|]}td|qSr{rrrrrrrcss|]}|dkVqdS)rBNr)r|rorrrrr)_is_closed_polygonr\ concatenaterOzerosshapefloatrcumsumrarray zeros_likeTrad2degarctan2r:rarangefloorastyperrallrR row_stack)rslcindrlcspacingZhlwcloseddxdyrotationnlcIxy1xy2rrrcalc_label_rot_and_inlineJsP""2   (,$ z(ContourLabeler.calc_label_rot_and_inlinecCs6|jj||f\}}tj|||dd|jd}|S)NcenterrZhorizontalalignmentZverticalalignmentr;)r transDatainvertedrrrrK)rr-r.rrrtrrr_get_label_texts  zContourLabeler._get_label_textc Cs\|jj}|||f\}}|t|gt||gg}t|||ddd|jd}|S)Nrrr) r rrrr r\rrrK) rr-r.rZ transDataInvrrZ drotationrrrr_get_label_clabeltexts  z$ContourLabeler._get_label_clabeltextcCsf|jj||jd}|||j}|||||j||j||j ||f|j |dS)Nalpha) r[to_rgbarrrHrrmrR labelCValuesrdr add_artist)rrr-r.rpcvaluer_textrrr _add_labels  zContourLabeler._add_labelcCs$||||}||||||dS)zO Add contour label using :class:`~matplotlib.text.Text` class. N)rrrr-r.rrprrrrr add_labelszContourLabeler.add_labelcCs$||||}||||||dS)zD Add contour label using :class:`ClabelText` class. N)rrrrrradd_label_clabeltextsz#ContourLabeler.add_label_clabeltextcCs*|dur|jj}|r&|||f\}}||||jdd\}}}} } |j|} | |j} |jj| | g} t | | |st j | || dd} t | | |<|j|}||}||jj| |||r| nd|\}}|| | ||j||j||r&| || dd|DdS)a Add a label near the point ``(x, y)``. Parameters ---------- x, y : float The approximate location of the label. inline : bool, default: True If *True* remove the segment of the contour beneath the label. inline_spacing : int, default: 5 Space in pixels to leave on each side of label when placing inline. This spacing will be exact for labels at locations where the contour is straight, less so for labels on curved contours. transform : `.Transform` or `False`, default: ``self.axes.transData`` A transform applied to ``(x, y)`` before labeling. The default causes ``(x, y)`` to be interpreted as data coordinates. `False` is a synonym for `.IdentityTransform`; i.e. ``(x, y)`` should be interpreted as display coordinates. Nr4rrscSs"g|]}t|dkrt|qSr)rOmpathPath)r|nrrrrrz1ContourLabeler.add_label_near..)r rrfind_nearest_contourrU collections get_pathsverticesrr\allcloseinsertrrindexrrrrTr^popextend)rr-r.rrrconminsegminiminxminyminpathsrZxcminlminrrrrrrr,s6     zContourLabeler.add_label_nearrBcCs$|j||j|}|dS)z>Defaults to removing last label, but any index can be suppliedN)rrrmremove)rrrrrrr(s  zContourLabeler.pop_labelc Cs|jr|j}n|j}tt|j|j|jD]\}\}}}|j|}| } | |} g} | } t| D]\} }|j }| |}||| r||| \}}}|||| |r|nd|\}}|||||||r|D] }t|dkr| t|qqh| |qh|r*| | dd<q*dS)Nr{)rIrrrQziprUrTr^rr rrrrrzrrrOrRrr)rrrrriconrprcontransr additionsrsegNumlinepathrrr-r.rrnewrrrrrjs:      zContourLabeler.labels)N)Nr4)Tr4N)rB)rrrrrqrzrrr deprecatedrrrrrrrrrrr,r(rjrrrrr3Ls4 "   " Z   @ r3cCstj|d|ddddS)z Return whether first and last object in a sequence are the same. These are presumably coordinates on a polygonal curve, in which case this function tests if that curve is closed. rrBg|=gvIh%<=)rtolatol)r\r)XrrrrMsrcCst|dkr*||dd|ddfS|dd|dd}|djdd}d||dk<t||dd|jdd|dddddf}|dd||}||djdd}t|}||||||dffS)a Parameters ---------- xys : (N, 2) array-like Coordinates of vertices. p : (float, float) Coordinates of point. Returns ------- d2min : float Minimum square distance of *p* to *xys*. proj : (float, float) Projection of *p* onto *xys*. imin : (int, int) Consecutive indices of vertices of segment in *xys* where *proj* is. Segments are considered as including their end-points; i.e if the closest point on the path is a node in *xys* with index *i*, this returns ``(i-1, i)``. For the special case where *xys* is a single point, this returns ``(0, 0)``. r{rr=rrNrBrs)rOrr\clipargmin)xyspZdxysnormsZ rel_projsZprojsZd2srrrr_find_closest_point_on_pathVs    ra Attributes ---------- ax : `~matplotlib.axes.Axes` The Axes object in which the contours are drawn. collections : `.silent_list` of `.PathCollection`\s The `.Artist`\s representing the contour. This is a list of `.PathCollection`\s for both line and filled contours. levels : array The values of the contour levels. layers : array Same as levels for line contours; half-way between levels for filled contours. See ``ContourSet._process_colors``. )Zcontour_set_attributesc@seZdZdZdddddddddddddddddddddd Zd d Zd d ZdefddZddZ ddZ ddZ ddZ ddZ ddZddZdd Zd!d"Zd#d$Zd%d&Zd'd(Zd)d*Zd.d,d-ZdS)/ ContourSeta Store a set of contour lines or filled regions. User-callable method: `~.Axes.clabel` Parameters ---------- ax : `~.axes.Axes` levels : [level0, level1, ..., leveln] A list of floating point numbers indicating the contour levels. allsegs : [level0segs, level1segs, ...] List of all the polygon segments for all the *levels*. For contour lines ``len(allsegs) == len(levels)``, and for filled contour regions ``len(allsegs) = len(levels)-1``. The lists should look like :: level0segs = [polygon0, polygon1, ...] polygon0 = [[x0, y0], [x1, y1], ...] allkinds : ``None`` or [level0kinds, level1kinds, ...] Optional list of all the polygon vertex kinds (code types), as described and used in Path. This is used to allow multiply- connected paths such as holes within filled polygons. If not ``None``, ``len(allkinds) == len(allsegs)``. The lists should look like :: level0kinds = [polygon0kinds, ...] polygon0kinds = [vertexcode0, vertexcode1, ...] If *allkinds* is not ``None``, usually all polygons for a particular contour level are grouped together so that ``level0segs = [polygon0]`` and ``level0kinds = [polygon0kinds]``. **kwargs Keyword arguments are as described in the docstring of `~.Axes.contour`. %(contour_set_attributes)s NFrneitherr)rLfilled linewidths linestyleshatchesroriginextentr@r7rAvminvmaxr antialiasednchunklocatorrnegative_linestylesc!sN|_|_|_|_|_|_|_|_| _| _ |_ |_ j dur^jr^d_ |_ |_ t| tjstj tjrd_| durt} nd_tjgd|djdurtjdkrtdj dur| durtdjd krtjd _|_|_jdur*tjd _j|i|}j d v_j d v_j durtj}jr|d8}d}d}|t jt j}tj |krЈjsjrd}jrd}tj!j |d|d} |rjr| "j djr| #j dt$%d_&g_'g_(d| i}| durP| |d<t)j*j+fi|| durv| j,_-|dur|j,_./t0dddur1\_2_3nj3durdgtj2_3jr6jdurt4d5\}}|6dd_7fddt8||j2j3Dj&dd<nl9_:};}j durdj f|6dd_7fddt8j||j2j3Dj&dd<j&D]V} jj<| ddj=dj>dg| j?j@dd<j=dj>dg| j?jAdd<qjBj=j>gjjCddD|rJt4ddEtFtG|dS)a Draw contour lines or filled regions, depending on whether keyword arg *filled* is ``False`` (default) or ``True``. Call signature:: ContourSet(ax, levels, allsegs, [allkinds], **kwargs) Parameters ---------- ax : `~.axes.Axes` The `~.axes.Axes` object to draw on. levels : [level0, level1, ..., leveln] A list of floating point numbers indicating the contour levels. allsegs : [level0segs, level1segs, ...] List of all the polygon segments for all the *levels*. For contour lines ``len(allsegs) == len(levels)``, and for filled contour regions ``len(allsegs) = len(levels)-1``. The lists should look like :: level0segs = [polygon0, polygon1, ...] polygon0 = [[x0, y0], [x1, y1], ...] allkinds : [level0kinds, level1kinds, ...], optional Optional list of all the polygon vertex kinds (code types), as described and used in Path. This is used to allow multiply- connected paths such as holes within filled polygons. If not ``None``, ``len(allkinds) == len(allsegs)``. The lists should look like :: level0kinds = [polygon0kinds, ...] polygon0kinds = [vertexcode0, vertexcode1, ...] If *allkinds* is not ``None``, usually all polygons for a particular contour level are grouped together so that ``level0segs = [polygon0]`` and ``level0kinds = [polygon0kinds]``. **kwargs Keyword arguments are as described in the docstring of `~.Axes.contour`. NFT)Nlowerupperimage)r"z3If given, 'extent' must be None or (x0, x1, y0, y1)z"Either colors or cmap must be Noner,z image.originzcontour.negative_linestyleminbothmaxr0r{rr>rBr@rAallsegsz!linewidths is ignored by contourfr;c s>g|]6\}}}}tj||jfdjjdqS)none) antialiaseds edgecolorsrrr;)mcollPathCollection _make_pathsr&rr rJ)r|level level_uppersegskindsrrrr^s  z'ContourSet.__init__..r=c sDg|]<\}}}}}tj||d||gjjdd qS)r4Z _nolegend_) facecolorsr5rr rrr;r)r7r8r9rr rJ)r|r:rZlstyler<r=aarrrrrs  )Zautolim)tightz/The following kwargs were not used by contour: z, )Hr rLrrr r!rr"r#r7rr&r'r(rr_LogNormrE LogLocatorlogscaler check_in_listrOrSrgrcParams _transformr) _process_args_process_levelsZ _extend_minZ _extend_maxrr` set_underset_overrkrlrrmrrarb__init__rAr$r%_process_colorsr_get_allsegs_and_allkindsr3allkinds warn_external_get_lowers_and_uppersrrJr _process_linewidths tlinewidths_process_linestylesadd_collection_mins_maxs sticky_edgesr-r.Zupdate_datalimZautoscale_viewchangedjoinmaprepr)!raxrLrrr r!rr"r#r@r7rAr$r%rr&r'r(rr)argskwargsncolorsi0Zuse_set_under_overZ total_levelskwlowersuppersrT tlinestylescolrr@rrMs3                        $zContourSet.__init__cCsF|jdur|jj|_n*t|jtjs@t|jdr@|j|j|_|jS)z9Return the `.Transform` instance used by this ContourSet.N_as_mpl_transform)rHr rr mtransforms Transformhasattrrhr>rrrr s   zContourSet.get_transformcCs|j}d|d<|S)N_contour_generator)__dict__copy)rstaterrr __getstate__s zContourSet.__getstate__r-c Csdg}g}|jr|\}}t|j}tt|j||D]\}\} } } tjddd| d| | d} | | || } || } |dkr|j dvr| d|d| dq8||dkr|j d vr| d|d | dq8| d| d |d| dq8nXt|j|j D]H\} } td } | | | | || } | d|d | dq||fS)a Return a list of artists and labels suitable for passing through to `~.Axes.legend` which represent this ContourSet. The labels have the form "0 < x <= 1" stating the data ranges which the artists represent. Parameters ---------- variable_name : str The string used inside the inequality used on the labels. str_format : function: float -> str Function used to format the numbers in the labels. Returns ------- artists : list[`.Artist`] A list of the artists. labels : list[str] A list of the labels. rr{r) facecolorhatchrr.$z \leq zs$r1z > z < Nz = )rrRrOrrQr mpatches Rectangle get_facecolor get_hatch get_alpharRrrLr7LineCollection update_from)r variable_name str_formatartistsrjrdreZn_levelsro collectionr*r+patchr:rrrlegend_elementss:     "   zContourSet.legend_elementscOs|d|_|d|_t|dkr(|dnd|_t|j|_t|j|_|j rrt|jt|jdkrt dnt|jt|jkrt d|jdurt|jt|jkrt ddd |jD}tj |dd }|jdd |_ |jdd |_ |S) z Process *args* and *kwargs*; override in derived classes. Must set self.levels, self.zmin and self.zmax, and update axes limits. rr{r=Nz-must be one less number of segments as levelsz)must be same number of segments as levelsz(allkinds has different length to allsegscSsg|]}|D]}|q qSrr)r|segrrrrrrz,ContourSet._process_args..rs)rLr3rOrPr\r2zmaxr/zminrrSrrWrX)rr_r`Z flatseglistpointsrrrrIs&    zContourSet._process_argsc Csg}g}|jrV|\}}t||D].\}}|j||\}}||||q$n0|jD](}|j|\}}||||q\||fS)z7Compute ``allsegs`` and ``allkinds`` using C extension.)rrRr rlZcreate_filled_contourrRrLZcreate_contour) rr3rPrdrer:r;rr=rrrrOs      z$ContourSet._get_allsegs_and_allkindscCs`|jdd}|j|dkrJ|}|jr:d|j|d<n|dd8<|jdd}||fS)zB Return ``(lowers, uppers)`` for filled contours. NrBrgGz?r{)_levelsrrnrE)rrdrerrrrRsz!ContourSet._get_lowers_and_upperscCs.|durdd|DSddt||DSdS)aB Create and return Path objects for the specified segments and optional kind codes. segs is a list of numpy arrays, each array is either a closed line loop or open line strip of 2D points with a shape of (npoints, 2). kinds is either None or a list (with the same length as segs) of numpy arrays, each array is of shape (npoints,) and contains the kinds codes for the corresponding line in segs. If kinds is None then the Path constructor creates the kind codes assuming that the line is an open strip. NcSsg|]}t|qSrrr)r|rrrrr-rz*ContourSet._make_paths..cSsg|]\}}tj||dqS))codesr)r|rkindrrrr/r)r )rr<r=rrrr9!s zContourSet._make_pathscCst|dstj|dS|j|jdd|j|j|j dD}||_ |j t |}t |||jD]0\}}}|jr||||qf||qft |j|jD]&\}}||j ||j|qtj|dS)NrPcSsg|]}t|fqSr)tuple)r|rgbarrrr<sz&ContourSet.changed..r)rkrarbrZrAautoscale_NonerLrrPrtcolorsr!rOr rr set_facecolor set_hatch set_edgecolorrmr set_alpharr[)rrr!rrrr~rZcvrrrrZ2s(      zContourSet.changedcCs |jdur0|jrt|_ntj|ddd|_|j|j|j}z|jjrR|WSWnt yfYn0t ||jkd}t |r|dnd}t ||jkd}t |r|ddnt |}|j dvr|d7}|j dvr|d8}||dkrdt |}}|||S) a, Select contour levels to span the data. The target number of levels, *N*, is used only when the scale is not log and default locator is used. We need two more levels for filled contours than for line contours, because for the latter we need to specify the lower and upper boundary of each range. For example, a single contour boundary, say at z = 0, requires only one contour line, but two filled regions, and therefore three levels to provide boundaries for both regions. Nr{) min_n_ticksrrBr.r1)r(rErErD MaxNLocator tick_valuesrr _symmetricAttributeErrorr\nonzerorOr)rr?rpunderrboveri1rrr_autolevNs*      zContourSet._autolevcCs|jdur&t|dkrd}q,|d}n|j}t|trD|||_nt|tj|_|j s|j|j k|j|j k@}|j|}t|dkr|j g|_t d|j rt|jdkrtdt|jdkrtt|jdkrtd dS) zH Determine the contour levels and store in self.levels. Nrz3No contour levels were found within the data range.r=z*Filled contours require at least 2 levels.r{gz!Contour levels must be increasing)rLrOrrrr\asarrayrfloat64rrrrrQrSr/r)rr_Z levels_arginsideZ levels_inrrr_process_contour_level_argsys(       $z&ContourSet._process_contour_level_argscCst|j|_|jrd\}}nd\}}|jdvr<|jd||jdvrR|j|t|j|_|j sr|j|_ dS|jrt |jddt |jdd|_ n"d |jdd|jdd|_ dS) a& Assign values to :attr:`layers` based on :attr:`levels`, adding extended layers as needed if contours are filled. For line contours, layers simply coincide with levels; a line is a thin layer. No extended levels are needed with line contours. )gL]? RyXs)gRyXrr0r/rr0r2NrBr{?) rMrLrrErrrRr\rrlayerssqrt)rr*r+rrrrJs"     zContourSet._process_levelscCs|jj|_|jdurvdt|j}}|jrV|d8}|jdvrD|d8}|jdvrV|d7}tt|||_ | t n|j |_ ||j||jdvrd|j_dS)a Color argument processing for contouring. Note that we base the colormapping on the contour levels and layers, not on the actual range of the Z values. This means we don't have to worry about bad values in Z, and we always have the full dynamic range available for the selected levels. The color is based on the midpoint of the layer, except for extended end layers. By default, the norm vmin and vmax are the extreme values of the non-extended levels. Hence, the layer color extremes are not the extreme values of the colormap itself, but approach those values as the number of levels increases. An advantage of this scheme is that line contours, when added to filled contours, take on colors that are consistent with those of the filled regions; for example, a contour line on the boundary between two regions will have a color intermediate between those of the regions. Nrr{rr)r0r2r/F)r@ monochromer7rOrLrrrMrNrPset_normr_rcr set_arrayrrAr)rrbrrrrrNs       zContourSet._process_colorscCs|j}t|j}|durBtjd}|dur4tjd}|fg|}nnt|sX|g|}nJt|}t||krtt |t|}||}t||kr|d|}dd|D}|S)Nzcontour.linewidthzlines.linewidthcSsg|] }|fqSrr)r|wrrrrrz2ContourSet._process_linewidths..) rrOrLrgrGr\rerMrr)rrNlevZdefault_linewidthrTnrepsrrrrSs"        zContourSet._process_linewidthscCs|j}t|j}|durbdg|}|jr|j|j d}t|jD]\}}||krD|j||<qDntt|t rx|g|}n^t |rt |}t||krt t |t|}||}t||kr|d|}ntd|S)NsolidgV瞯rrrrxszContourSet.get_alphacCs||_|dS)z Set the alpha blending value for all ContourSet artists. *alpha* must be between 0 (transparent) and 1 (opaque). N)rrZ)rrrrrrszContourSet.set_alphaTcCs|jrtd|dur$tt|j}tj}d}d}d}d} t||g} |D]} |j| } | } | }t |D]X\}}|j }|r| |}t || \}}}||krr|}| }|}|d}|d}|d} qrqL||||| |fS)a| Find the point in the contour plot that is closest to ``(x, y)``. This method does not support filled contours. Parameters ---------- x, y : float The reference point. indices : list of int or None, default: None Indices of contour levels to consider. If None (the default), all levels are considered. pixel : bool, default: True If *True*, measure distance in pixel (screen) space, which is useful for manual contour labeling; else, measure distance in axes space. Returns ------- contour : `.Collection` The contour that is closest to ``(x, y)``. segment : int The index of the `.Path` in *contour* that is closest to ``(x, y)``. index : int The index of the path segment in *segment* that is closest to ``(x, y)``. xmin, ymin : float The point in the contour plot that is closest to ``(x, y)``. d2 : float The squared distance from ``(xmin, ymin)`` to ``(x, y)``. z(Method does not support filled contours.Nr{r)rrSrNrOrr\infrr rrQrrr)rr-r.rnpixelZd2minrrrrpointr r r rrrrd2ZxcZlegrrrrr"s6*   zContourSet.find_nearest_contour)NT)rrrrrMr rprrrIrOrRr9rZrrrJrNrSrUrxrrrrrrrs2+  X <"+%-rc@s8eZdZdZdddddZddZdd Zd d ZdS) QuadContourSetz Create and store a set of contour lines or filled regions. This class is typically not instantiated directly by the user but by `~.Axes.contour` and `~.Axes.contourf`. %(contour_set_attributes)s N) corner_mask algorithmc Ost|dtrz|jdur$|dj|_|dj|_|dj|_|dj|_|dj}|dj|_|dj|_|dj |_ n"ddl }|durt j d}t j j d|||_ |dur|j dkrd}n t j d}||_|||\}}} |j||| |j |j|jj|jj|jd}|} | |jjkrpt| |jjrp| |jj} t|j|jgj} | | } | d}| d }t |t |g|_t!|t!|g|_||_|S) z* Process args and kwargs. rNzcontour.algorithmmpl2005Fzcontour.corner_mask)r#r line_type fill_type chunk_size).r).r{)"rrrLrrZ _corner_maskrlrWrX _algorithm contourpyrgrGvalidate _contour_argscontour_generatorZLineTypeZ SeparateCodeZFillTypeZ OuterCoder'r r rrwcontains_branch_seperatelyr\vstackflatrrrr/r2)rrrr_r`rrr-r.zrZ trans_to_dataptsZtransformed_ptsrrrrI|sP             zQuadContourSet._process_argscCs|jr d}nd}t|}|dkrPtj|dtjd}||\}}|dd}n@|dkr||dd|\}}}|dd}ntd ||ftj |d d }t | |_ t | |_|jr|jdkrt|dk|}td t | |_|||||fS) Ncontourfcontourr=rrr{r-rz&Too many arguments to %s; see help(%s)F)rnz,Log scale: values of z <= 0 have been masked)rrOrrr\r_initialize_x_y _check_xyz TypeErrormasked_invalidrr2rr/rrE masked_whererrQr)rr_r`fnZNargsrr-r.rrrrs.  zQuadContourSet._contour_argsc Cs|dd\}}|jd|fd|fg|\}}tj|tjd}tj|tjd}tj|dtjd}|jdkr~td|jd|jddks|jd dkrtd |j|j\}}|j|jkrtd |jd |jd |jd krH|j\}|j\} ||krtd|d|d| |kr6td| d|dt ||\}}np|jdkr|j|jkr|td|jd|jd|j|jkrtd|jd|jdntd|jd|||fS)z Check that the shapes of the input arrays match; if x and y are 1D, convert them to 2D using meshgrid. Nr=r-r.rInput z must be 2D, not Drr{>Input z must be at least a (2, 2) shaped array, but has shape zNumber of dimensions of x (z ) and y (z) do not matchz Length of x (z%) must match number of columns in z ()z Length of y (z") must match number of rows in z (z Shapes of x z and z z do not matchz Shapes of y z%Inputs x and y must be 1D or 2D, not ) r Z_process_unit_infor\rrrndimrrmeshgrid) rr_r`r-r.rNyNxnxnyrrrrsN             zQuadContourSet._check_xyzc CsP|jdkrtd|jdn8|jddks:|jddkrLtd|jn |j\}}|jdur|jdurtt|t|S|j\}}}}t|||}t|||} t|| S|jdurd|d|f\}}}}n|j\}}}}|||} |||} |t|d| }|t|d| } |jd krD| ddd } t|| S) a Return X, Y arrays such that contour(Z) will match imshow(Z) if origin is not None. The center of pixel Z[i, j] depends on origin: if origin is None, x = j, y = i; if origin is 'lower', x = j + 0.5, y = i + 0.5; if origin is 'upper', x = j + 0.5, y = Nrows - i - 0.5 If extent is not None, x and y will be scaled to match, as in imshow. If origin is None and extent is not None, then extent will give the minimum and maximum values of x and y. r=rrrr{rNrr+rB) rrrr"r#r\rrlinspace) rrrrx0x1y0y1r-r.rrrrrrs0          zQuadContourSet._initialize_x_y)rrrrrIrrrrrrrrqs  :,ra-# `.contour` and `.contourf` draw contour lines and filled contours, respectively. Except as noted, function signatures and return values are the same for both versions. Parameters ---------- X, Y : array-like, optional The coordinates of the values in *Z*. *X* and *Y* must both be 2D with the same shape as *Z* (e.g. created via `numpy.meshgrid`), or they must both be 1-D such that ``len(X) == N`` is the number of columns in *Z* and ``len(Y) == M`` is the number of rows in *Z*. *X* and *Y* must both be ordered monotonically. If not given, they are assumed to be integer indices, i.e. ``X = range(N)``, ``Y = range(M)``. Z : (M, N) array-like The height values over which the contour is drawn. Color-mapping is controlled by *cmap*, *norm*, *vmin*, and *vmax*. levels : int or array-like, optional Determines the number and positions of the contour lines / regions. If an int *n*, use `~matplotlib.ticker.MaxNLocator`, which tries to automatically choose no more than *n+1* "nice" contour levels between *vmin* and *vmax*. If array-like, draw contour lines at the specified levels. The values must be in increasing order. Returns ------- `~.contour.QuadContourSet` Other Parameters ---------------- corner_mask : bool, default: :rc:`contour.corner_mask` Enable/disable corner masking, which only has an effect if *Z* is a masked array. If ``False``, any quad touching a masked point is masked out. If ``True``, only the triangular corners of quads nearest those points are always masked out, other triangular corners comprising three unmasked points are contoured as usual. colors : color string or sequence of colors, optional The colors of the levels, i.e. the lines for `.contour` and the areas for `.contourf`. The sequence is cycled for the levels in ascending order. If the sequence is shorter than the number of levels, it's repeated. As a shortcut, single color strings may be used in place of one-element lists, i.e. ``'red'`` instead of ``['red']`` to color all levels with the same color. This shortcut does only work for color strings, not for other ways of specifying colors. By default (value *None*), the colormap specified by *cmap* will be used. alpha : float, default: 1 The alpha blending value, between 0 (transparent) and 1 (opaque). %(cmap_doc)s This parameter is ignored if *colors* is set. %(norm_doc)s This parameter is ignored if *colors* is set. %(vmin_vmax_doc)s If *vmin* or *vmax* are not given, the default color scaling is based on *levels*. This parameter is ignored if *colors* is set. origin : {*None*, 'upper', 'lower', 'image'}, default: None Determines the orientation and exact position of *Z* by specifying the position of ``Z[0, 0]``. This is only relevant, if *X*, *Y* are not given. - *None*: ``Z[0, 0]`` is at X=0, Y=0 in the lower left corner. - 'lower': ``Z[0, 0]`` is at X=0.5, Y=0.5 in the lower left corner. - 'upper': ``Z[0, 0]`` is at X=N+0.5, Y=0.5 in the upper left corner. - 'image': Use the value from :rc:`image.origin`. extent : (x0, x1, y0, y1), optional If *origin* is not *None*, then *extent* is interpreted as in `.imshow`: it gives the outer pixel boundaries. In this case, the position of Z[0, 0] is the center of the pixel, not a corner. If *origin* is *None*, then (*x0*, *y0*) is the position of Z[0, 0], and (*x1*, *y1*) is the position of Z[-1, -1]. This argument is ignored if *X* and *Y* are specified in the call to contour. locator : ticker.Locator subclass, optional The locator is used to determine the contour levels if they are not given explicitly via *levels*. Defaults to `~.ticker.MaxNLocator`. extend : {'neither', 'both', 'min', 'max'}, default: 'neither' Determines the ``contourf``-coloring of values that are outside the *levels* range. If 'neither', values outside the *levels* range are not colored. If 'min', 'max' or 'both', color the values below, above or below and above the *levels* range. Values below ``min(levels)`` and above ``max(levels)`` are mapped to the under/over values of the `.Colormap`. Note that most colormaps do not have dedicated colors for these by default, so that the over and under values are the edge values of the colormap. You may want to set these values explicitly using `.Colormap.set_under` and `.Colormap.set_over`. .. note:: An existing `.QuadContourSet` does not get notified if properties of its colormap are changed. Therefore, an explicit call `.QuadContourSet.changed()` is needed after modifying the colormap. The explicit call can be left out, if a colorbar is assigned to the `.QuadContourSet` because it internally calls `.QuadContourSet.changed()`. Example:: x = np.arange(1, 10) y = x.reshape(-1, 1) h = x * y cs = plt.contourf(h, levels=[10, 30, 50], colors=['#808080', '#A0A0A0', '#C0C0C0'], extend='both') cs.cmap.set_over('red') cs.cmap.set_under('blue') cs.changed() xunits, yunits : registered units, optional Override axis units by specifying an instance of a :class:`matplotlib.units.ConversionInterface`. antialiased : bool, optional Enable antialiasing, overriding the defaults. For filled contours, the default is *True*. For line contours, it is taken from :rc:`lines.antialiased`. nchunk : int >= 0, optional If 0, no subdivision of the domain. Specify a positive integer to divide the domain into subdomains of *nchunk* by *nchunk* quads. Chunking reduces the maximum length of polygons generated by the contouring algorithm which reduces the rendering workload passed on to the backend and also requires slightly less RAM. It can however introduce rendering artifacts at chunk boundaries depending on the backend, the *antialiased* flag and value of *alpha*. linewidths : float or array-like, default: :rc:`contour.linewidth` *Only applies to* `.contour`. The line width of the contour lines. If a number, all levels will be plotted with this linewidth. If a sequence, the levels in ascending order will be plotted with the linewidths in the order specified. If None, this falls back to :rc:`lines.linewidth`. linestyles : {*None*, 'solid', 'dashed', 'dashdot', 'dotted'}, optional *Only applies to* `.contour`. If *linestyles* is *None*, the default is 'solid' unless the lines are monochrome. In that case, negative contours will instead take their linestyle from the *negative_linestyles* argument. *linestyles* can also be an iterable of the above strings specifying a set of linestyles to be used. If this iterable is shorter than the number of contour levels it will be repeated as necessary. negative_linestyles : {*None*, 'solid', 'dashed', 'dashdot', 'dotted'}, optional *Only applies to* `.contour`. If *linestyles* is *None* and the lines are monochrome, this argument specifies the line style for negative contours. If *negative_linestyles* is *None*, the default is taken from :rc:`contour.negative_linestyles`. *negative_linestyles* can also be an iterable of the above strings specifying a set of linestyles to be used. If this iterable is shorter than the number of contour levels it will be repeated as necessary. hatches : list[str], optional *Only applies to* `.contourf`. A list of cross hatch patterns to use on the filled areas. If None, no hatching will be added to the contour. Hatching is supported in the PostScript, PDF, SVG and Agg backends only. algorithm : {'mpl2005', 'mpl2014', 'serial', 'threaded'}, optional Which contouring algorithm to use to calculate the contour lines and polygons. The algorithms are implemented in `ContourPy `_, consult the `ContourPy documentation `_ for further information. The default is taken from :rc:`contour.algorithm`. data : indexable object, optional DATA_PARAMETER_PLACEHOLDER Notes ----- 1. `.contourf` differs from the MATLAB version in that it does not draw the polygon edges. To draw edges, add line contours with calls to `.contour`. 2. `.contourf` fills intervals that are closed at the top; that is, for boundaries *z1* and *z2*, the filled region is:: z1 < Z <= z2 except for the lowest interval, which is closed on both sides (i.e. it includes the lowest value). 3. `.contour` and `.contourf` use a `marching squares `_ algorithm to compute contour locations. More information can be found in `ContourPy documentation `_. )Z contour_doc)3rrhnumbersrnumpyr\r matplotlibrgrrmatplotlib.backend_basesrmatplotlib.pathpathrmatplotlib.tickerrE matplotlib.cmramatplotlib.colorsr7r_Zmatplotlib.collectionsrr7Zmatplotlib.font_managerrVmatplotlib.textrZmatplotlib.cbookrkmatplotlib.patchespatchesrtmatplotlib.transforms transformsrirrr2r3rrinterpdupdatededent_interpdrbrrparamsrrrrsT               $h5l