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epaper.flush(self, mode)

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@Function description: select refresh mode

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@Parameter

mode：refresh mode

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epaper.FULL：refresh fully

epaper.PART：refresh partially

Calling fucntions about geometrical figure

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epaper.setLineWidth(self, w)

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@Function description: set the line width of the figure

@parameter

w: line width

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epaper.pixel(self, x, y, color)

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@Fucntion description：draw a point

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@（parameter1, parameter2）

（x, y)：position of the point（row, column）

@parameter3

color：color of the point. Value epaper.BLACK, epaper.WHITE

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epaper.VLine(self, x, y, h, color)

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@Function description: draw a vertical line

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@（parameter1，parameter2） （x, y): starting point of the vertical line.

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@ parameter3

h：height of vertical line

@ parameter4

color：line color, value epaper.BLACK, epaper.WHITE.

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epaper.HLine(self, x, y, w, color)

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@Function description: draw a horizontal line

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@（parameter1，parameter2） （x, y): starting point of the horizontal line

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@parameter3

w：width of horizontal line