Inner Dimension

Inner Dimensions
Horizontal	Vertical

Inner Dimension Properties

This dimension uses the line dimension and angled text, but only works in an orthogonal manner.

Show/Hide Inner Dimension Attributes

• im

  PIL image handle, link to the calling program

• dr

  PIL drawing handle, link to the calling program

• ptA

  Start coordinates

• ptB

  Finishing coordinates

• text

  Text to be written next to the dimension, default None

• font

  Font of the text, default None

• fill

  Line colour RGB tuple, default (0,0,0)

• width

  Line width in pixels, default 1

• arrowhead

  Three integer tuple describing the shape and size of the arrow, default (8,10,3)

• arrow

  position of the arrow on the line, which influences the direction it points, default "both".

Normally inner dimensions are not slanted. The position of the text changes according to orientation, so angled_text is used.

Show/Hide Code test_inner_dim.py

from PIL import Image, ImageDraw, ImageFont
from math import pi, sin, cos
from DimLinesPIL import dimension, angled_text

def inner_dim(im, dr, ptA, ptB, text=None, font=None, width=1, fill=(0,0,0),
              arrowhead=(8, 10, 3), arrow='both'):
    # used on horizontal or vertical inner dimensions

    dimension(dr, ptA, ptB, width=width, fill=fill, arrowhead=arrowhead,
              arrow='both')
    # vertical
    if ptA[0] == ptB[0]:
        at = ptA[0] - 10, (ptA[1] + ptB[1]) //2
        angle = 90

    # horizontal
    elif ptA[1] == ptB[1]:
        at = (ptA[0] + ptB[0]) // 2, ptA[1] - 10
        angle = 0
    else:
        raise Exception('The inner dimension: should be vertical or horizontal '\
                        '{} {} coordinates'.format(ptA, ptB))

    angled_text(im, at, text, angle, font=font, fill=fill)

    return im

if __name__ == '__main__':
    Text = 'Test'
    Font = ImageFont.truetype('consola.ttf', 15)

    image2 = Image.new('RGB', (120, 120), '#FFFFDD')

    draw2 = ImageDraw.Draw(image2)

    draw2.line([(30,30), (90,30)], width=2, fill='black')
    draw2.line([(30,90), (90,90)], width=2, fill='black')

    pta = (60,30)
    ptb = (60,90)

    inner_dim(image2, draw2, pta, ptb, text=Text, font=Font)

    image2.show()
    #image2.save('../figures/vert_inner.png') #