Support crater drawing.

icons/icons.svg

@@ -145,12 +145,12 @@
      inkscape:object-paths="true"
      inkscape:guide-bbox="true"
      showguides="false"
-     showgrid="false"
+     showgrid="true"
      inkscape:document-units="px"
      inkscape:current-layer="layer1"
-     inkscape:cy="552.05466"
-     inkscape:cx="725.47613"
-     inkscape:zoom="1"
+     inkscape:cy="574.09971"
+     inkscape:cx="310.47613"
+     inkscape:zoom="45.254834"
      inkscape:pageshadow="2"
      inkscape:pageopacity="0.0"
      borderopacity="1.0"
@@ -22742,5 +22742,21 @@
       <title
          id="title7808">orbiter</title>
     </path>
+    <path
+       style="opacity:0.2;fill:none;fill-opacity:1;stroke:#000000;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+       d="m 306.5,12.5 11,0 c -1.5,-1 -1.5,-2 -2,-3 -2,1.5 -5,1.5 -7,0 -0.5,1 -0.5,2 -2,3 z"
+       id="path7810"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="ccccc" />
+    <path
+       style="color:#000000;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:medium;line-height:normal;font-family:sans-serif;text-indent:0;text-align:start;text-decoration:none;text-decoration-line:none;text-decoration-style:solid;text-decoration-color:#000000;letter-spacing:normal;word-spacing:normal;text-transform:none;direction:ltr;block-progression:tb;writing-mode:lr-tb;baseline-shift:baseline;text-anchor:start;white-space:normal;clip-rule:nonzero;display:inline;overflow:visible;visibility:visible;opacity:1;isolation:auto;mix-blend-mode:normal;color-interpolation:sRGB;color-interpolation-filters:linearRGB;solid-color:#000000;solid-opacity:1;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;color-rendering:auto;image-rendering:auto;shape-rendering:auto;text-rendering:auto;enable-background:accumulate"
+       d="m 308.47266,25 c -0.17969,0.01014 -0.34006,0.116064 -0.41993,0.277344 -0.55962,1.119257 -0.45808,1.891979 -1.83007,2.80664 C 305.81126,28.358467 306.00544,28.999813 306.5,29 l 11,0 c 0.49456,-1.87e-4 0.68874,-0.641533 0.27734,-0.916016 -1.37199,-0.914661 -1.27045,-1.687383 -1.83007,-2.80664 -0.13896,-0.28007 -0.49797,-0.36537 -0.74805,-0.177735 -1.808,1.356 -4.59044,1.356 -6.39844,0 -0.0942,-0.07084 -0.21043,-0.106117 -0.32812,-0.09961 z"
+       id="crater"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="cccccccccc"
+       inkscape:label="#path7812">
+      <title
+         id="title7816">crater</title>
+    </path>
   </g>
 </svg>

roentgen/constructor.py

@@ -11,7 +11,14 @@ from colour import Color
 
 from roentgen import ui
 from roentgen.color import get_gradient_color
-from roentgen.figure import Building, DirectionSector, Road, StyledFigure, Tree
+from roentgen.figure import (
+    Building,
+    Crater,
+    DirectionSector,
+    Road,
+    StyledFigure,
+    Tree,
+)
 from roentgen.flinger import Flinger
 from roentgen.map_configuration import DrawingMode, MapConfiguration
 
@@ -159,6 +166,7 @@ class Constructor:
         self.buildings: list[Building] = []
         self.roads: list[Road] = []
         self.trees: list[Tree] = []
+        self.craters: list[Crater] = []
         self.direction_sectors: list[DirectionSector] = []
 
         self.heights: set[float] = {2, 4}
@@ -411,6 +419,10 @@ class Constructor:
             self.trees.append(Tree(tags, node.coordinates, flung))
             return
 
+        if node.get_tag("natural") == "crater" and "diameter" in node.tags:
+            self.craters.append(Crater(tags, node.coordinates, flung))
+            return
+
         if "direction" in node.tags or "camera:direction" in node.tags:
             self.direction_sectors.append(DirectionSector(tags, flung))
         point: Point = Point(

roentgen/figure.py

@@ -247,6 +247,33 @@ class Road(Figure):
                 pass
 
 
+class Crater(Tagged):
+    """
+    Volcano or impact crater on the map.
+    """
+
+    def __init__(
+        self, tags: dict[str, str], coordinates: np.ndarray, point: np.ndarray
+    ) -> None:
+        super().__init__(tags)
+        self.coordinates: np.ndarray = coordinates
+        self.point: np.ndarray = point
+
+    def draw(self, svg: Drawing, flinger: Flinger) -> None:
+        """Draw crater ridge."""
+        scale: float = flinger.get_scale(self.coordinates)
+        assert "diameter" in self.tags
+        radius: float = float(self.tags["diameter"]) / 2.0
+        circle = svg.circle(
+            self.point,
+            radius * scale,
+            fill="none",
+            stroke="#000000",
+            opacity=0.3,
+        )
+        svg.add(circle)
+
+
 class Tree(Tagged):
     """
     Tree on the map.

roentgen/icon.py

@@ -357,19 +357,18 @@ class Icon:
         :param tags: tags to be displayed as hint
         :param outline: draw outline for the icon
         """
-        target = Group(opacity=self.opacity) if self.opacity != 1.0 else svg
         if outline:
             bright: bool = is_bright(self.shape_specifications[0].color)
             opacity: float = 0.7 if bright else 0.5
             outline_group: Group = Group(opacity=opacity)
             for shape_specification in self.shape_specifications:
                 shape_specification.draw(outline_group, point, tags, True)
-            target.add(outline_group)
+            svg.add(outline_group)
         else:
+            group: Group = Group(opacity=self.opacity)
             for shape_specification in self.shape_specifications:
-                shape_specification.draw(target, point, tags)
-        if self.opacity != 1.0:
-            svg.add(target)
+                shape_specification.draw(group, point, tags)
+            svg.add(group)
 
     def draw_to_file(
         self,

roentgen/mapper.py

@@ -80,6 +80,8 @@ class Map:
 
         for tree in constructor.trees:
             tree.draw(self.svg, self.flinger, self.scheme)
+        for tree in constructor.craters:
+            tree.draw(self.svg, self.flinger)
 
         for direction_sector in constructor.direction_sectors:
             direction_sector.draw(self.svg, self.scheme)

scheme/default.yml

@@ -212,6 +212,9 @@ node_icons:
       shapes: [cliff]
     - tags: {natural: peak}
       shapes: [triangle_small]
+    - tags: {natural: crater}
+      exception: {diameter: "*"}
+      shapes: [crater]
 
     - tags:
         natural: volcano