Python has_jpeg Examples

Example #1

File: render_test.py Project: mapycz/python-mapnik

def test_render_image_to_file():
    im = mapnik.Image(256, 256)
    im.fill(mapnik.Color('black'))
    if mapnik.has_jpeg():
        im.save('test.jpg')
    im.save('test.png', 'png')
    if os.path.exists('test.jpg'):
        os.remove('test.jpg')
    else:
        return False
    if os.path.exists('test.png'):
        os.remove('test.png')
    else:
        return False

Example #2

File: render_test.py Project: plepe/mapnik

def test_render_image_to_file():
    im = mapnik.Image(256, 256)
    im.background = mapnik.Color('black')
    if mapnik.has_jpeg():
        im.save('test.jpg')
    im.save('test.png', 'png')
    if os.path.exists('test.jpg'):
        os.remove('test.jpg')
    else:
        return False
    if os.path.exists('test.png'):
        os.remove('test.png')
    else:
        return False

Example #3

File: rundemo.py Project: DavidLiuGitHub/mapnik

images_ = []
if mapnik.has_png():
    im.save('demo.png', 'png') # true-colour RGBA
    images_.append('demo.png')

    # old behavior, now can do 'png8:c=256'
    im.save('demo256.png', 'png256') # save to palette based (max 256 colours) png
    images_.append('demo256.png')

    im.save('demo64_binary_transparency.png', 'png8:c=64:t=1')
    images_.append('demo64_binary_transparency.png')

    im.save('demo128_colors_hextree_no_alpha.png', 'png8:c=100:m=h:t=0')
    images_.append('demo128_colors_hextree_no_alpha.png')

if mapnik.has_jpeg():
    im.save('demo_high.jpg', 'jpeg100')
    images_.append('demo_high.jpg')

    im.save('demo_low.jpg', 'jpeg50')
    images_.append('demo_low.jpg')

if mapnik.has_tiff():
    im.save('demo.tif', 'tiff')
    images_.append('demo.tif')

if mapnik.has_webp():
    im.save('demo.webp', 'webp') # default quality is 90
    images_.append('demo.webp')

    im.save('demo_highest.webp', 'webp:quality=100')

Example #4

images_ = []
if mapnik.has_png():
    im.save('demo.png', 'png') # true-colour RGBA
    images_.append('demo.png')

    # old behavior, now can do 'png8:c=256'
    im.save('demo256.png', 'png256') # save to palette based (max 256 colours) png
    images_.append('demo256.png')

    im.save('demo64_binary_transparency.png', 'png8:c=64:t=1')
    images_.append('demo64_binary_transparency.png')

    im.save('demo128_colors_hextree_no_alpha.png', 'png8:c=100:m=h:t=0')
    images_.append('demo128_colors_hextree_no_alpha.png')

if mapnik.has_jpeg():
    im.save('demo_high.jpg', 'jpeg100')
    images_.append('demo_high.jpg')

    im.save('demo_low.jpg', 'jpeg50')
    images_.append('demo_low.jpg')

if mapnik.has_tiff():
    im.save('demo.tif', 'tiff')
    images_.append('demo.tif')

if mapnik.has_webp():
    im.save('demo.webp', 'webp') # default quality is 90
    images_.append('demo.webp')

    im.save('demo_highest.webp', 'webp:quality=100')