如何使用matplotlib在人物的精确位置添加图片?

时间:2019-12-21 22:39:05

标签: python image matplotlib figure

我想在图形上添加图片,并且当窗口调整大小以使其保持在其位置时,我希望其与整个图形一起缩放。我尝试添加新轴(add_axis)和annotationBboxes,但是两种方法均失败。我可以在图上放一个图像,但是当调整窗口大小时它将移动。这是我的代码的相关片段:

class Field:
    def __init__(self, cords, rgb, lettuce=True):
        self.x = cords[0]
        self.y = cords[1]
        self.rgb = (rgb[0]/255, rgb[1]/255, rgb[2]/255)
        self.lettuce = lettuce

    def image(self):
        import matplotlib.pyplot as plt
        return plt.imread(self.__class__.__name__ + '.png', format='png')


class Board:
    def __init__(self, dim):
        self.dim = dim
        self.all_fields = []

    def add_field(self, field):
        self.all_fields.append(field)

    def show(self):
        import matplotlib.pyplot as plt
        import matplotlib.patches as pat
        plt.ion()
        fig = plt.figure()
        ax = fig.add_subplot(111, aspect='equal')
        ax.set_xlim((-1, self.dim + 1))
        ax.set_ylim((-1, self.dim + 1))
        plt.axis('off')
        for x in range(self.dim):
            for y in range(self.dim):
                ax.add_patch(pat.Rectangle((x, y), 1, 1,
                                           linewidth=1, edgecolor='k', facecolor=(1, 1, 1)))
        for field in self.all_fields:
            ax.add_patch(pat.Rectangle((field.x, field.y), 1, 1,
                                       linewidth=1, edgecolor='k', facecolor=field.rgb))
            im = field.image()
            newax = fig.add_axes([0.12, 0.54, 0.22, 0.1], anchor='NE')
            newax.imshow(im)
            newax.axis('off')
            if field.lettuce:
                ax.add_patch(pat.Circle((field.x + 0.5, field.y + 0.5), 0.2, facecolor=(0, 1, 0)))
        fig.canvas.draw()


P = Board(10)
A = Field((0, 4), (255, 106, 0))
P.add_field(A)
P.show()

Field picture

所以我要添加矩形以创建网格。然后,我添加代表特定字段的彩色矩形。现在,我想用沙漠图像代替橙色矩形。最后一步是有问题的,因为很难将图像放置在正确的位置,并且在调整窗口大小时会移动。

the grid

0 个答案:

没有答案