ó m[c@`sjdZddlmZmZmZmZddlZddlmZddl Z de fd„ƒYZ dS(u Tools for triangular grids. i(tabsolute_importtdivisiontprint_functiontunicode_literalsN(t Triangulationt TriAnalyzercB`sbeZdZd„Zed„ƒZed„Zded„Ze e d„Z e dd„ƒZ RS( u§ Define basic tools for triangular mesh analysis and improvement. A TriAnalizer encapsulates a :class:`~matplotlib.tri.Triangulation` object and provides basic tools for mesh analysis and mesh improvement. Parameters ---------- triangulation : :class:`~matplotlib.tri.Triangulation` object The encapsulated triangulation to analyze. Attributes ---------- `scale_factors` cC`s+t|tƒstdƒ‚n||_dS(NuExpected a Triangulation object(t isinstanceRt ValueErrort_triangulation(tselft triangulation((s6lib/python2.7/site-packages/matplotlib/tri/tritools.pyt__init__scC`st|jjƒ}tjtj|ƒd|jjjƒdk}dtj|jj|ƒdtj|jj|ƒfS(ur Factors to rescale the triangulation into a unit square. Returns *k*, tuple of 2 scale factors. Returns ------- k : tuple of 2 floats (kx, ky) Tuple of floats that would rescale the triangulation : ``[triangulation.x * kx, triangulation.y * ky]`` fits exactly inside a unit square. t minlengthii( Rtget_masked_trianglestnptbincounttraveltxtsizetptpty(R tcompressed_trianglest node_used((s6lib/python2.7/site-packages/matplotlib/tri/tritools.pyt scale_factors#s cC`sþ|r|j\}}n d \}}tj|jj||jj|gƒj}||jj}|dd…ddd…f|dd…ddd…f}|dd…ddd…f|dd…ddd…f}|dd…ddd…f|dd…ddd…f}tj|dd…dfd|dd…dfdƒ}tj|dd…dfd|dd…dfdƒ}tj|dd…dfd|dd…dfdƒ}|||d} | ||| ||| ||| } | dk} tj | ƒr…|j d} tj | dtj ƒ} tj | | <|||}|| d tj| | ƒ| | s "