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Python _backend_gdk.pixbuf_get_pixels_array函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Python中matplotlib.backends._backend_gdk.pixbuf_get_pixels_array函数的典型用法代码示例。如果您正苦于以下问题:Python pixbuf_get_pixels_array函数的具体用法?Python pixbuf_get_pixels_array怎么用?Python pixbuf_get_pixels_array使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了pixbuf_get_pixels_array函数的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Python代码示例。

示例1: draw_image

    def draw_image(self, gc, x, y, im):
        bbox = gc.get_clip_rectangle()

        if bbox != None:
            l,b,w,h = bbox.bounds
            #rectangle = (int(l), self.height-int(b+h),
            #             int(w), int(h))
            # set clip rect?

        rows, cols = im.shape[:2]

        pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,
                                has_alpha=True, bits_per_sample=8,
                                width=cols, height=rows)

        array = pixbuf_get_pixels_array(pixbuf)
        array[:, :, :] = im[::-1]

        gc = self.new_gc()


        y = self.height-y-rows

        try: # new in 2.2
            # can use None instead of gc.gdkGC, if don't need clipping
            self.gdkDrawable.draw_pixbuf (gc.gdkGC, pixbuf, 0, 0,
                                          int(x), int(y), cols, rows,
                                          gdk.RGB_DITHER_NONE, 0, 0)
        except AttributeError:
            # deprecated in 2.2
            pixbuf.render_to_drawable(self.gdkDrawable, gc.gdkGC, 0, 0,
                                  int(x), int(y), cols, rows,
                                  gdk.RGB_DITHER_NONE, 0, 0)
开发者ID:4over7,项目名称:matplotlib,代码行数:33,代码来源:backend_gdk.py


示例2: _draw_mathtext

    def _draw_mathtext(self, gc, x, y, s, prop, angle):
        ox, oy, width, height, descent, font_image, used_characters = \
            self.mathtext_parser.parse(s, self.dpi, prop)

        if angle == 90:
            width, height = height, width
            x -= width
        y -= height

        imw = font_image.get_width()
        imh = font_image.get_height()

        pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, has_alpha=True,
                                bits_per_sample=8, width=imw, height=imh)

        array = pixbuf_get_pixels_array(pixbuf)

        rgb = gc.get_rgb()
        array[:,:,0] = int(rgb[0]*255)
        array[:,:,1] = int(rgb[1]*255)
        array[:,:,2] = int(rgb[2]*255)
        array[:,:,3] = (
            np.fromstring(font_image.as_str(), np.uint8).reshape((imh, imw)))

        # can use None instead of gc.gdkGC, if don't need clipping
        self.gdkDrawable.draw_pixbuf(gc.gdkGC, pixbuf, 0, 0,
                                     int(x), int(y), imw, imh,
                                     gdk.RGB_DITHER_NONE, 0, 0)
开发者ID:RealGeeks,项目名称:matplotlib,代码行数:28,代码来源:backend_gdk.py


示例3: _draw_mathtext

    def _draw_mathtext(self, gc, x, y, s, prop, angle):
        ox, oy, width, height, descent, font_image, used_characters = \
            self.mathtext_parser.parse(s, self.dpi, prop)

        if angle==90:
            width, height = height, width
            x -= width
        y -= height

        imw = font_image.get_width()
        imh = font_image.get_height()
        N = imw * imh

        # a numpixels by num fonts array
        Xall = np.zeros((N,1), np.uint8)

        image_str = font_image.as_str()
        Xall[:,0] = np.fromstring(image_str, np.uint8)

        # get the max alpha at each pixel
        Xs = np.amax(Xall,axis=1)

        # convert it to it's proper shape
        Xs.shape = imh, imw

        pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, has_alpha=True,
                                bits_per_sample=8, width=imw, height=imh)

        array = pixbuf_get_pixels_array(pixbuf)

        rgb = gc.get_rgb()
        array[:,:,0]=int(rgb[0]*255)
        array[:,:,1]=int(rgb[1]*255)
        array[:,:,2]=int(rgb[2]*255)
        array[:,:,3]=Xs

        try: # new in 2.2
            # can use None instead of gc.gdkGC, if don't need clipping
            self.gdkDrawable.draw_pixbuf (gc.gdkGC, pixbuf, 0, 0,
                                          int(x), int(y), imw, imh,
                                          gdk.RGB_DITHER_NONE, 0, 0)
        except AttributeError:
            # deprecated in 2.2
            pixbuf.render_to_drawable(self.gdkDrawable, gc.gdkGC, 0, 0,
                                  int(x), int(y), imw, imh,
                                  gdk.RGB_DITHER_NONE, 0, 0)
开发者ID:4over7,项目名称:matplotlib,代码行数:46,代码来源:backend_gdk.py


示例4: draw_image

    def draw_image(self, x, y, im, bbox, clippath=None, clippath_trans=None):
        if bbox != None:
            l,b,w,h = bbox.bounds
            #rectangle = (int(l), self.height-int(b+h),
            #             int(w), int(h))
            # set clip rect?

        im.flipud_out()
        rows, cols, image_str = im.as_rgba_str()

        image_array = npy.fromstring(image_str, npy.uint8)
        image_array.shape = rows, cols, 4

        pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,
                                has_alpha=True, bits_per_sample=8,
                                width=cols, height=rows)

        array = pixbuf_get_pixels_array(pixbuf)
        array[:,:,:] = image_array

        gc = self.new_gc()


        y = self.height-y-rows

        try: # new in 2.2
            # can use None instead of gc.gdkGC, if don't need clipping
            self.gdkDrawable.draw_pixbuf (gc.gdkGC, pixbuf, 0, 0,
                                          int(x), int(y), cols, rows,
                                          gdk.RGB_DITHER_NONE, 0, 0)
        except AttributeError:
            # deprecated in 2.2
            pixbuf.render_to_drawable(self.gdkDrawable, gc.gdkGC, 0, 0,
                                  int(x), int(y), cols, rows,
                                  gdk.RGB_DITHER_NONE, 0, 0)

        # unflip
        im.flipud_out()
开发者ID:08s011003,项目名称:nupic,代码行数:38,代码来源:backend_gdk.py



注:本文中的matplotlib.backends._backend_gdk.pixbuf_get_pixels_array函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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