Python matplotlib.path方法代码示例

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def _paint_path(closep, fillp, strokep):
    """Return the PDF operator to paint a path in the following way:
    closep:  close the path before painting
    fillp:   fill the path with the fill color
    strokep: stroke the outline of the path with the line color"""
    if strokep:
        if closep:
            if fillp:
                return Op.close_fill_stroke
            else:
                return Op.close_stroke
        else:
            if fillp:
                return Op.fill_stroke
            else:
                return Op.stroke
    else:
        if fillp:
            return Op.fill
        else:
            return Op.endpath 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def writePathCollectionTemplates(self):
        for (name, path, trans, ob, joinstyle, capstyle, padding, filled,
             stroked) in self.paths:
            pathops = self.pathOperations(path, trans, simplify=False)
            bbox = path.get_extents(trans)
            if not np.all(np.isfinite(bbox.extents)):
                extents = [0, 0, 0, 0]
            else:
                bbox = bbox.padded(padding)
                extents = list(bbox.extents)
            self.beginStream(
                ob.id, None,
                {'Type': Name('XObject'), 'Subtype': Name('Form'),
                 'BBox': extents})
            self.output(GraphicsContextPdf.joinstyles[joinstyle], Op.setlinejoin)
            self.output(GraphicsContextPdf.capstyles[capstyle], Op.setlinecap)
            self.output(*pathops)
            self.output(Op.paint_path(False, filled, stroked))
            self.endStream() 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def clip_cmd(self, cliprect, clippath):
        """Set clip rectangle. Calls self.pop() and self.push()."""
        cmds = []
        # Pop graphics state until we hit the right one or the stack is empty
        while ((self._cliprect, self._clippath) != (cliprect, clippath)
                and self.parent is not None):
            cmds.extend(self.pop())
        # Unless we hit the right one, set the clip polygon
        if ((self._cliprect, self._clippath) != (cliprect, clippath) or
            self.parent is None):
            cmds.extend(self.push())
            if self._cliprect != cliprect:
                cmds.extend([cliprect, Op.rectangle, Op.clip, Op.endpath])
            if self._clippath != clippath:
                path, affine = clippath.get_transformed_path_and_affine()
                cmds.extend(
                    PdfFile.pathOperations(path, affine, simplify=False) +
                    [Op.clip, Op.endpath])
        return cmds 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def _load_bitmap(filename):
    """
    Load a bitmap file from the backends/images subdirectory in which the
    matplotlib library is installed. The filename parameter should not
    contain any path information as this is determined automatically.

    Returns a wx.Bitmap object
    """

    basedir = os.path.join(rcParams['datapath'],'images')

    bmpFilename = os.path.normpath(os.path.join(basedir, filename))
    if not os.path.exists(bmpFilename):
        raise IOError('Could not find bitmap file "%s"; dying'%bmpFilename)

    bmp = wx.Bitmap(bmpFilename)
    return bmp 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def draw_path_collection(self, gc, master_transform, paths, all_transforms,
                             offsets, offsetTrans, facecolors, edgecolors,
                             linewidths, linestyles, antialiaseds, urls,
                             offset_position):
        if offset_position=='data':
            offset_position = True
        else:
            offset_position = False
        path_ids = []
        for path, transform in self._iter_collection_raw_paths(
            master_transform, paths, all_transforms):
            path_ids.append((path, transform))
        master_transform = master_transform.get_matrix()
        all_transforms = [t.get_matrix() for t in all_transforms]
        offsetTrans = offsetTrans.get_matrix()
        gc.draw_path_collection(master_transform, path_ids, all_transforms,
                             offsets, offsetTrans, facecolors, edgecolors,
                             linewidths, linestyles, antialiaseds,
                             offset_position) 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def linear_spine(cls, axes, spine_type, **kwargs):
        """
        (staticmethod) Returns a linear :class:`Spine`.
        """
        # all values of 13 get replaced upon call to set_bounds()
        if spine_type == 'left':
            path = mpath.Path([(0.0, 13), (0.0, 13)])
        elif spine_type == 'right':
            path = mpath.Path([(1.0, 13), (1.0, 13)])
        elif spine_type == 'bottom':
            path = mpath.Path([(13, 0.0), (13, 0.0)])
        elif spine_type == 'top':
            path = mpath.Path([(13, 1.0), (13, 1.0)])
        else:
            raise ValueError('unable to make path for spine "%s"' % spine_type)
        result = cls(axes, spine_type, path, **kwargs)
        return result 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def _load_bitmap(filename):
    """
    Load a bitmap file from the backends/images subdirectory in which the
    matplotlib library is installed. The filename parameter should not
    contain any path information as this is determined automatically.

    Returns a wx.Bitmap object
    """

    basedir = os.path.join(rcParams['datapath'], 'images')

    bmpFilename = os.path.normpath(os.path.join(basedir, filename))
    if not os.path.exists(bmpFilename):
        raise IOError('Could not find bitmap file "%s"; dying' % bmpFilename)

    bmp = wx.Bitmap(bmpFilename)
    return bmp 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def linear_spine(cls, axes, spine_type, **kwargs):
        """
        (staticmethod) Returns a linear :class:`Spine`.
        """
        # all values of 0.999 get replaced upon call to set_bounds()
        if spine_type == 'left':
            path = mpath.Path([(0.0, 0.999), (0.0, 0.999)])
        elif spine_type == 'right':
            path = mpath.Path([(1.0, 0.999), (1.0, 0.999)])
        elif spine_type == 'bottom':
            path = mpath.Path([(0.999, 0.0), (0.999, 0.0)])
        elif spine_type == 'top':
            path = mpath.Path([(0.999, 1.0), (0.999, 1.0)])
        else:
            raise ValueError('unable to make path for spine "%s"' % spine_type)
        result = cls(axes, spine_type, path, **kwargs)
        result.set_visible(rcParams['axes.spines.{0}'.format(spine_type)])

        return result 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def DrawContourAndMark(contour, x, y, z, level, clipborder, patch, m):

        # 是否绘制等值线 ------ 等值线和标注是一体的

        if contour.contour['visible']:

            matplotlib.rcParams['contour.negative_linestyle'] = 'dashed'
            if contour.contour['colorline']:
                CS1 = m.contour(x, y, z, levels=level, linewidths=contour.contour['linewidth'])
            else:
                CS1 = m.contour(x,
                                y,
                                z,
                                levels=level,
                                linewidths=contour.contour['linewidth'],
                                colors=contour.contour['linecolor'])

            # 是否绘制等值线标注
            CS2 = None
            if contour.contourlabel['visible']:
                CS2 = plt.clabel(CS1,
                                 inline=1,
                                 fmt=contour.contourlabel['fmt'],
                                 inline_spacing=contour.contourlabel['inlinespacing'],
                                 fontsize=contour.contourlabel['fontsize'],
                                 colors=contour.contourlabel['fontcolor'])

            # 用区域边界裁切等值线图
            if clipborder.path is not None and clipborder.using:
                for collection in CS1.collections:
                    # collection.set_clip_on(True)
                    collection.set_clip_path(patch)

                if CS2 is not None:
                    for text in CS2:
                        if not clipborder.path.contains_point(text.get_position()):
                            text.remove() 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def DrawClipBorders(clipborders):

        # 绘制裁切区域边界并返回
        path = clipborders[0].path
        linewidth = clipborders[0].linewidth
        linecolor = clipborders[0].linecolor
        if path is not None:
            patch = patches.PathPatch(path, linewidth=linewidth, facecolor='none', edgecolor=linecolor)
            plt.gca().add_patch(patch)
        else:
            patch = None
        return patch 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def DrawBorders(m, products):
        """
        画县市边界
        :param m: 画布对象（plt或投影后的plt)
        :param products: 产品参数
        :return: 
        """
        try:
            for area in products.map.borders:
                if not area.draw:
                    continue
                if area.filetype == 'SHP':  # shp文件
                    if m is plt:
                        # Map.DrawShapeFile(area)
                        Map.readshapefile(area.file.replace('.shp', ''),
                                          os.path.basename(area.file),
                                          color=area.linecolor,
                                          linewidth=area.linewidth)
                    else:
                        m.readshapefile(area.file.replace('.shp', ''),
                                        os.path.basename(area.file),
                                        color=area.linecolor)
                else:  # 文本文件 , 画之前 路径中的点已经被投影了
                    if area.path is None:
                        continue
                    if area.polygon == 'ON':
                        area_patch = patches.PathPatch(area.path,
                                                       linewidth=area.linewidth,
                                                       linestyle='solid',
                                                       facecolor='none',
                                                       edgecolor=area.linecolor)
                        plt.gca().add_patch(area_patch)
                    else:
                        x, y = list(zip(*area.path.vertices))
                        m.plot(x, y, 'k-', linewidth=area.linewidth, color=area.linecolor)
        except Exception as err:
            print(u'【{0}】{1}-{2}'.format(products.xmlfile, err, datetime.now())) 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def DrawShapeFile(area):
        """
        在画布上绘制shp文件
        :param area: 包含shp文件名及线宽和线颜色的一个字典
        :return: 
        """
        try:
            shpfile = area.file
            border_shape = shapefile.Reader(shpfile)
            border = border_shape.shapes()
            for b in border:
                border_points = b.points
                path_data = []
                count = 0
                for cell in border_points:
                    if count == 0:
                        trans = (Path.MOVETO, (cell[0], cell[1]))
                        path_data += [trans]
                        cell_end = cell
                    else:
                        trans = (Path.CURVE4, (cell[0], cell[1]))
                        path_data += [trans]
                trans = (Path.CLOSEPOLY, (cell_end[0], cell_end[1]))
                path_data += [trans]

                codes, verts = list(zip(*path_data))
                path = Path(verts, codes)
                x, y = list(zip(*path.vertices))
                plt.plot(x, y, 'k-', linewidth=area.linewidth, color=area.linecolor)
        except Exception as err:
            print(u'【{0}】{1}-{2}'.format(area['file'], err, datetime.now())) 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def GetFontProperties(font):
        fontfile = r"C:\WINDOWS\Fonts\{0}".format(font['family'])
        if not os.path.exists(fontfile):
            fp = FontProperties(family=font['family'], weight=font['weight'], size=font['size'])
        else:
            fp = FontProperties(fname=fontfile, weight=font['weight'], size=font['size'])
        return fp 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def _ring_coding(ob):
    # The codes will be all "LINETO" commands, except for "MOVETO"s at the
    # beginning of each subpath
    n = len(ob.coords)
    codes = np.ones(n, dtype=matplotlib.path.Path.code_type) * \
        matplotlib.path.Path.LINETO
    codes[0] = matplotlib.path.Path.MOVETO
    return codes


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# https://sgillies.net/2010/04/06/painting-punctured-polygons-with-matplotlib.html 

# 需要导入模块: import matplotlib [as 别名]
# 或者: from matplotlib import path [as 别名]
def _pathify(polygon):
    # Convert coordinates to path vertices. Objects produced by Shapely's
    # analytic methods have the proper coordinate order, no need to sort.
    vertices = np.concatenate(
        [np.asarray(polygon.exterior)]
        + [np.asarray(r) for r in polygon.interiors])
    codes = np.concatenate(
        [_ring_coding(polygon.exterior)]
        + [_ring_coding(r) for r in polygon.interiors])
    return matplotlib.path.Path(vertices, codes)
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