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| FROM ubuntu:bionic | ||
| FROM ubuntu:focal | ||
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| # Style dependencies | ||
| RUN apt-get update && apt-get install --no-install-recommends -y \ | ||
| ca-certificates curl gnupg postgresql-client python3 python3-distutils \ | ||
| fonts-hanazono fonts-noto-cjk fonts-noto-hinted fonts-noto-unhinted \ | ||
| mapnik-utils nodejs npm ttf-unifont unzip && rm -rf /var/lib/apt/lists/* | ||
| mapnik-utils nodejs npm ttf-unifont unzip git && rm -rf /var/lib/apt/lists/* | ||
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| # Kosmtik with plugins, forcing prefix to /usr because bionic sets | ||
| # Kosmtik with plugins, forcing prefix to /usr because Ubuntu sets | ||
| # npm prefix to /usr/local, which breaks the install | ||
| RUN npm set prefix /usr && npm install -g kosmtik | ||
| # We install kosmtik not from release channel, but directly from a specific commit on github. | ||
| RUN npm set prefix /usr && npm install -g "git+https://[email protected]/kosmtik/kosmtik.git#f176c4c" | ||
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| WORKDIR /usr/lib/node_modules/kosmtik/ | ||
| RUN kosmtik plugins --install kosmtik-overpass-layer \ | ||
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| @@ -0,0 +1,143 @@ | ||
| #!/usr/bin/env python3 | ||
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| # Colours for unpaved roads | ||
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| # This reads some color variables from some .mss files and also reads | ||
| # symbols/unpaved/unpaved.svg and generates colourized versions of | ||
| # the unpaved pattern for all road types and saves them in the symbols/unpaved | ||
| # folder. Existing files of the same name are overwritten! | ||
| # | ||
| # This script produces patterns that perceptually have the same overall | ||
| # brightness as the original road color. Therefor, the pattern foreground | ||
| # is darker than the original color, and the pattern background lighter than | ||
| # the original color. This script does its very best, but the same overall | ||
| # brightness is not always possible (for example for white roads) and also | ||
| # depends on the monitor gammut on which the pattern is finally displayed. | ||
| # | ||
| # Usage: Call this script in the main directory of openstreetmap-carto | ||
| # without further parameters. | ||
| # | ||
| # Customize: | ||
| # You can customize this script by changing the first variables of in the main() | ||
| # function (color_names, file_names, darken, brighten_darken_ratio). | ||
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| from colormath.color_objects import LabColor, sRGBColor | ||
| from colormath.color_conversions import convert_color | ||
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| # def get_color_value_by_name(variable_name, file_names): | ||
| # | ||
| # Searches in MSS files for variable values with the given name. Returns | ||
| # the first value it finds. Only supports very basic syntax like: | ||
| # @test: 12; # Comment | ||
| # which would return "12". | ||
| # | ||
| # Paramaters: | ||
| # variable_name: the name of the variable for which we search the value | ||
| # file_names: list of files where we search for the variable value | ||
| # | ||
| # Return value: the variable value (if any) | ||
| def get_color_value_by_name(variable_name, file_names): | ||
| for files in file_names: | ||
| with open(files) as f: | ||
| for line in f: | ||
| if line.startswith("@" + variable_name + ":"): | ||
| temp = line.strip("@" + variable_name + ":").split(";")[0].strip() | ||
| # test if the value length is okay (#abc or #aabbcc) | ||
| if (len(temp) == 4) or (len(temp)== 7): | ||
| # remove the first character (#) | ||
| temp = temp[1:] | ||
| # expand value like #abc to #aabbcc | ||
| if len(temp) == 3: | ||
| temp = temp[0] + temp [0] + temp [1] + temp [1] + temp [2] + temp [2] | ||
| # make sure that the content is really a (lowercase) hex value | ||
| if all(c in set("0123456789abcdef") for c in temp): | ||
| # if so, return the hex value with a leading "#" | ||
| return ("#" + temp) | ||
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| # Takes an RGB hex values, applies the indicated Lab lightness change and returns the result as RGB hex value again | ||
| # def change_lightness(base_color_rgb_hex, lightness_change): | ||
| # | ||
| # Changes the lightness of a given color. This function | ||
| # tries to do a perceptual transformation. | ||
| # | ||
| # Paramaters: | ||
| # base_color_rgb_hex: An RGB hex value like #1212ab | ||
| # lightness_change: A number (positive or negative), interpreted as change to the lightness component like in Lab perceptual color space (range: 0..100) | ||
| # | ||
| # Return value: The RGB hex value with the lightness change applied. If the lightness change leaves | ||
| # us with an out-of-gammut value, it is clipped to make sure to be within the RGB gammut. So the return | ||
| # value is guarantied to be always a valid RGB value. | ||
| def change_lightness(base_color_rgb_hex, lightness_change): | ||
| base_color_lab = convert_color(sRGBColor.new_from_rgb_hex(base_color_rgb_hex), LabColor) | ||
| new_color_lab = LabColor( | ||
| base_color_lab.lab_l + lightness_change, # This value might be out of gammut and therefor invalid | ||
| base_color_lab.lab_a, | ||
| base_color_lab.lab_b, | ||
| base_color_lab.observer, | ||
| base_color_lab.illuminant) | ||
| new_color_rgb = convert_color(new_color_lab, sRGBColor) # This value might be out of gammut and therefor invalid | ||
| # use the "clamped" values which means they are within the gammut and therefor valid | ||
| new_color_rgb_clamped = sRGBColor( | ||
| new_color_rgb.clamped_rgb_r, | ||
| new_color_rgb.clamped_rgb_g, | ||
| new_color_rgb.clamped_rgb_b) | ||
| return new_color_rgb_clamped.get_rgb_hex() | ||
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| def main(): | ||
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| # List of names of color variables in mss code for which we will generate patterns | ||
| color_names = { | ||
| 'motorway-low-zoom', | ||
| 'trunk-low-zoom', | ||
| 'primary-low-zoom', | ||
| 'motorway-fill', | ||
| 'trunk-fill', | ||
| 'primary-fill', | ||
| 'secondary-fill', | ||
| 'platform-fill', | ||
| 'aeroway-fill', | ||
| 'road-fill', | ||
| 'pedestrian-fill', | ||
| 'living-street-fill', | ||
| 'raceway-fill', | ||
| 'residential-fill' | ||
| } | ||
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| # List of names of mss files in which we search for color variables | ||
| file_names = { | ||
| 'style/roads.mss', | ||
| 'style/road-colors-generated.mss' | ||
| } | ||
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| # The value by which the original color is darkened for the pattern foreground | ||
| # This value should always be negative. | ||
| darken = -60 | ||
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| # The pattern foreground occupies less space than the background. So lightening | ||
| # the background has to be less intense than darkening the foreground. This | ||
| # value is multiplied with the negative value of "darken" to get a value for | ||
| # "brighten", so brighten_darken_ration must also be negative to make sure | ||
| # the "brighten" result is positive. This value should (only) be changed when | ||
| # the pattern itself is changed. | ||
| brighten_darken_ratio = -0.065 | ||
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| # actual code | ||
| for color_name in color_names: | ||
| print("\nColor name: " + color_name) | ||
| original_color_value = get_color_value_by_name(color_name, file_names) | ||
| print("Plain color: " + original_color_value) | ||
| pattern_colors = [change_lightness(original_color_value, darken), | ||
| change_lightness(original_color_value, darken * brighten_darken_ratio)] | ||
| print("Colors for pattern: " + str(pattern_colors)) | ||
| if pattern_colors: | ||
| with open('symbols/unpaved/unpaved.svg', 'rt') as fin: | ||
| with open('symbols/unpaved/unpaved_' + color_name + '.svg', 'wt') as fout: | ||
| for line in fin: | ||
| temp = line | ||
| temp = temp.replace('#0000ff', pattern_colors[0]) | ||
| temp = temp.replace('fill:none', 'fill:' + pattern_colors[1]) | ||
| fout.write(temp) | ||
| print("Pattern file: " + 'symbols/unpaved/unpaved_' + color_name + '.svg') | ||
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| if __name__ == "__main__": | ||
| main() |
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