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336 lines
12 KiB
Python
336 lines
12 KiB
Python
"""
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Simple OpenStreetMap renderer.
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"""
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from typing import Any, Dict
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import numpy as np
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import svgwrite
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from colour import Color
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from svgwrite.container import Group
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from svgwrite.path import Path
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from svgwrite.shapes import Rect
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from roentgen import ui
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from roentgen.constructor import Building, Constructor, Segment, Road
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from roentgen.direction import DirectionSet, Sector
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from roentgen.flinger import Flinger
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from roentgen.icon import ShapeExtractor
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from roentgen.osm_reader import Map
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from roentgen.point import Occupied, Point
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from roentgen.scheme import Scheme
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__author__ = "Sergey Vartanov"
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__email__ = "me@enzet.ru"
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ICONS_FILE_NAME: str = "icons/icons.svg"
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TAGS_FILE_NAME: str = "scheme/default.yml"
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MISSING_TAGS_FILE_NAME: str = "missing_tags.yml"
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AUTHOR_MODE = "user-coloring"
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CREATION_TIME_MODE = "time"
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class Painter:
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"""
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Map drawing.
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"""
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def __init__(
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self,
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map_: Map,
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flinger: Flinger,
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svg: svgwrite.Drawing,
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icon_extractor: ShapeExtractor,
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scheme: Scheme,
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show_missing_tags: bool = False,
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overlap: int = 12,
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mode: str = "normal",
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label_mode: str = "main"
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):
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self.show_missing_tags: bool = show_missing_tags
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self.overlap: int = overlap
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self.mode: str = mode
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self.label_mode: str = label_mode
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self.map_: Map = map_
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self.flinger: Flinger = flinger
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self.svg: svgwrite.Drawing = svg
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self.icon_extractor = icon_extractor
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self.scheme: Scheme = scheme
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self.background_color: Color = self.scheme.get_color("background_color")
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if self.mode in [AUTHOR_MODE, CREATION_TIME_MODE]:
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self.background_color: Color = Color("#111111")
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def draw(self, constructor: Constructor) -> None:
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"""
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Draw map.
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"""
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self.svg.add(
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Rect((0, 0), self.flinger.size, fill=self.background_color)
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)
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ways = sorted(constructor.figures, key=lambda x: x.line_style.priority)
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ways_length: int = len(ways)
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for index, way in enumerate(ways):
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ui.progress_bar(index, ways_length, step=10, text="Drawing ways")
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path_commands: str = way.get_path(self.flinger)
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if path_commands:
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path = Path(d=path_commands)
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path.update(way.line_style.style)
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self.svg.add(path)
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ui.progress_bar(-1, 0, text="Drawing ways")
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roads = sorted(
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constructor.roads, key=lambda x: x.matcher.priority
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)
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for road in roads:
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self.draw_road(road, road.matcher.border_color, 2)
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for road in roads:
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self.draw_road(road, road.matcher.color)
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# Trees
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for node in constructor.points:
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if not (node.get_tag("natural") == "tree" and
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("diameter_crown" in node.tags or
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"circumference" in node.tags)):
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continue
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if "circumference" in node.tags:
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if "diameter_crown" in node.tags:
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opacity = 0.7
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radius = float(node.tags["diameter_crown"]) / 2
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else:
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opacity = 0.3
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radius = 2
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self.svg.add(self.svg.circle(
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node.point,
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radius * self.flinger.get_scale(node.coordinates),
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fill=self.scheme.get_color("evergreen_color"),
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opacity=opacity))
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self.svg.add(self.svg.circle(
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node.point,
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float(node.tags["circumference"]) / 2 / np.pi *
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self.flinger.get_scale(node.coordinates),
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fill="#B89A74"))
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# Draw building shade.
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building_shade: Group = Group(opacity=0.1)
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length: float = self.flinger.get_scale()
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for building in constructor.buildings:
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shift = np.array((length * building.get_levels(), 0))
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for nodes in building.inners + building.outers:
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for i in range(len(nodes) - 1): # type: int
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flung_1 = self.flinger.fling(nodes[i].coordinates)
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flung_2 = self.flinger.fling(nodes[i + 1].coordinates)
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building_shade.add(Path(
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("M", flung_1, "L", flung_2, np.add(flung_2, shift),
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np.add(flung_1, shift), "Z"),
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fill="#000000", stroke="#000000", stroke_width=1))
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self.svg.add(building_shade)
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# Draw buildings.
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previous_level: float = 0
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level_height: float = self.flinger.get_scale()
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level_count: int = len(constructor.levels)
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for index, level in enumerate(sorted(constructor.levels)):
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ui.progress_bar(
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index, level_count, step=1, text="Drawing buildings")
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fill: Color()
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for way in constructor.buildings: # type: Building
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if way.get_levels() < level:
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continue
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shift_1 = [0, -previous_level * level_height]
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shift_2 = [0, -level * level_height]
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for segment in way.parts: # type: Segment
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if level == 0.5:
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fill = Color("#AAAAAA")
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elif level == 1:
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fill = Color("#C3C3C3")
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else:
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color_part: float = 0.8 + segment.angle * 0.2
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fill = Color(rgb=(color_part, color_part, color_part))
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self.svg.add(self.svg.path(
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d=("M", segment.point_1 + shift_1, "L",
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segment.point_2 + shift_1,
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segment.point_2 + shift_2,
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segment.point_1 + shift_2,
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segment.point_1 + shift_1, "Z"),
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fill=fill.hex, stroke=fill.hex, stroke_width=1,
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stroke_linejoin="round"))
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# Draw building roofs.
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for way in constructor.buildings: # type: Building
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if way.get_levels() == level:
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shift = np.array([0, -way.get_levels() * level_height])
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path_commands: str = way.get_path(self.flinger, shift)
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path = Path(d=path_commands, opacity=1)
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path.update(way.line_style.style)
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path.update({"stroke-linejoin": "round"})
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self.svg.add(path)
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previous_level = level
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ui.progress_bar(-1, level_count, step=1, text="Drawing buildings")
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# Directions
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for node in constructor.points: # type: Point
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angle = None
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is_revert_gradient: bool = False
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if node.get_tag("man_made") == "surveillance":
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direction = node.get_tag("camera:direction")
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if "camera:angle" in node.tags:
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angle = float(node.get_tag("camera:angle"))
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if "angle" in node.tags:
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angle = float(node.get_tag("angle"))
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direction_radius: float = 25
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direction_color: Color = (
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self.scheme.get_color("direction_camera_color")
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)
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elif node.get_tag("traffic_sign") == "stop":
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direction = node.get_tag("direction")
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direction_radius: float = 25
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direction_color: Color = Color("red")
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else:
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direction = node.get_tag("direction")
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direction_radius: float = 50
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direction_color: Color = (
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self.scheme.get_color("direction_view_color")
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)
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is_revert_gradient = True
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if not direction:
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continue
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point = (node.point.astype(int)).astype(float)
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if angle:
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paths = [Sector(direction, angle).draw(point, direction_radius)]
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else:
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paths = DirectionSet(direction).draw(point, direction_radius)
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for path in paths:
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gradient = self.svg.defs.add(self.svg.radialGradient(
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center=point, r=direction_radius,
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gradientUnits="userSpaceOnUse"))
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if is_revert_gradient:
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(
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gradient
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.add_stop_color(0, direction_color.hex, opacity=0)
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.add_stop_color(1, direction_color.hex, opacity=0.7)
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)
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else:
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(
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gradient
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.add_stop_color(0, direction_color.hex, opacity=0.4)
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.add_stop_color(1, direction_color.hex, opacity=0)
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)
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self.svg.add(self.svg.path(
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d=["M", point] + path + ["L", point, "Z"],
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fill=gradient.get_paint_server()))
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# All other points
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if self.overlap == 0:
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occupied = None
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else:
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occupied = Occupied(
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self.flinger.size[0], self.flinger.size[1], self.overlap)
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nodes = sorted(constructor.points, key=lambda x: -x.priority)
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steps: int = len(nodes)
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for index, node in enumerate(nodes): # type: int, Point
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if (node.get_tag("natural") == "tree" and
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("diameter_crown" in node.tags or
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"circumference" in node.tags)):
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continue
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ui.progress_bar(
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index, steps * 3, step=10, text="Drawing main icons"
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)
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node.draw_main_shapes(self.svg, occupied)
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for index, point in enumerate(nodes): # type: int, Point
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ui.progress_bar(
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steps + index, steps * 3, step=10, text="Drawing extra icons"
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)
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point.draw_extra_shapes(self.svg, occupied)
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for index, point in enumerate(nodes): # type: int, Point
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ui.progress_bar(
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steps * 2 + index, steps * 3, step=10, text="Drawing texts"
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)
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if (
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self.mode not in [CREATION_TIME_MODE, AUTHOR_MODE]
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and self.label_mode != "no"
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):
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point.draw_texts(self.svg, occupied, self.label_mode)
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ui.progress_bar(-1, len(nodes), step=10, text="Drawing nodes")
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def draw_road(
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self, road: Road, color: Color, extra_width: float = 0
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) -> None:
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self.flinger.get_scale()
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if road.width is not None:
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width = road.width
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else:
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width = road.matcher.default_width
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scale = self.flinger.get_scale(road.outers[0][0].coordinates)
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path_commands: str = road.get_path(self.flinger)
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path = Path(d=path_commands)
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path.update({
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"fill": "none",
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"stroke": color.hex,
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"stroke-linecap": "round",
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"stroke-linejoin": "round",
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"stroke-width": scale * width + extra_width
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})
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self.svg.add(path)
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def check_level_number(tags: Dict[str, Any], level: float):
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"""
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Check if element described by tags is no the specified level.
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"""
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if "level" in tags:
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levels = map(float, tags["level"].replace(",", ".").split(";"))
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if level not in levels:
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return False
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else:
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return False
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return True
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def check_level_overground(tags: Dict[str, Any]) -> bool:
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"""
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Check if element described by tags is overground.
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"""
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if "level" in tags:
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try:
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levels = map(float, tags["level"].replace(",", ".").split(";"))
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for level in levels:
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if level <= 0:
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return False
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except ValueError:
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pass
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if "layer" in tags:
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try:
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levels = map(float, tags["layer"].replace(",", ".").split(";"))
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for level in levels:
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if level <= 0:
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return False
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except ValueError:
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pass
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if "parking" in tags and tags["parking"] == "underground":
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return False
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return True
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