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Issue #39: support flipping icons horizontally.

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If tags has "direction" key, direction is mostly to the left (to the
West), and shape for the icon is right directed, we flip the shape
horizontally.
This commit is contained in:
Sergey Vartanov 2021-05-21 03:04:49 +03:00
parent 2f957e880b
commit 1b40087b18
2 changed files with 15 additions and 4 deletions
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10
roentgen/scheme.py
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@ -10,6 +10,7 @@ from typing import Any, Dict, List, Optional, Set, Tuple, Union
import yaml
from colour import Color
from roentgen.direction import DirectionSet
from roentgen.icon import (
DEFAULT_COLOR, DEFAULT_SHAPE_ID, Icon, IconSet, ShapeExtractor,
ShapeSpecification
@ -184,6 +185,7 @@ class Scheme:
:param icon_extractor: extractor with icon specifications
:param tags: OpenStreetMap element tags dictionary
:param for_: target (node, way, area or relation)
:return (icon set, icon priority)
"""
tags_hash: str = (
",".join(tags.keys()) + ":" + ",".join(map(str, tags.values()))
@ -191,7 +193,7 @@ class Scheme:
if tags_hash in self.cache:
return self.cache[tags_hash]
main_icon: Icon = None
main_icon: Optional[Icon] = None
extra_icons: List[Icon] = []
processed: Set[str] = set()
priority: int = 0
@ -264,6 +266,12 @@ class Scheme:
returned: IconSet = IconSet(main_icon, extra_icons, processed)
self.cache[tags_hash] = returned, priority
if "direction" in tags:
if DirectionSet(tags["direction"]).is_right() is False:
for specification in main_icon.shape_specifications:
if specification.shape.is_right_directed:
specification.flip_horizontally = True
return returned, priority
def get_style(self, tags: Dict[str, Any], scale):