Repo created

tools/python/stylesheet/drules_info.py

@@ -0,0 +1,80 @@
+#!/usr/bin/env python3
+
+# Tool shows the following information about classes
+#  - zooms range, for classes with a style
+#  - classes without a style
+
+import csv
+import sys
+
+import drules_struct_pb2
+
+
+def GetAllClasses(mapping_path):
+    class_order = []
+    for row in csv.reader(open(mapping_path), delimiter=';'):
+        if not row or row[0].startswith('#'):
+            continue
+        cl = row[0].replace("|", "-")
+        if row[2] != "x":
+            class_order.append(cl)
+    class_order.sort()
+    return class_order
+
+
+def GetClassesZoomRange(drules_path):
+    drules = drules_struct_pb2.ContainerProto()
+    with open(drules_path, 'rb') as f:
+        drules.ParseFromString(f.read())
+    result = {}
+    for rule in drules.cont:
+        name = str(rule.name)
+        zooms = [-1, -1]
+        for elem in rule.element:
+            if elem.scale >= 0:
+                if zooms[0] == -1 or elem.scale < zooms[0]:
+                    zooms[0] = elem.scale
+                if zooms[1] == -1 or elem.scale > zooms[1]:
+                    zooms[1] = elem.scale
+        if zooms[0] != -1:
+            if name in result:
+                zooms[0] = min(zooms[0], result[name][0])
+                zooms[1] = max(zooms[1], result[name][1])
+            result[name] = zooms
+    return result
+
+
+def ShowZoomInfo(mapping_path, drules_path):
+    classes_order = GetAllClasses(mapping_path)
+    classes_zooms = GetClassesZoomRange(drules_path)
+
+    classes_with_style = []
+    classes_without_style = []
+
+    for c in classes_order:
+        if c in classes_zooms:
+            classes_with_style.append(c)
+        else:
+            classes_without_style.append(c)
+
+    classes_with_style.sort()
+    classes_without_style.sort()
+
+    print(f"Classes with a style: {len(classes_with_style)}")
+    for c in classes_with_style:
+        print(f"\t{c} - [{str(classes_zooms[c][0])}, {str(classes_zooms[c][1])}]")
+    print()
+    print(f"Classes without a style ({len(classes_without_style)}):")
+    for c in classes_without_style:
+        print(f"\t{c}")
+
+
+if __name__ == "__main__":
+    if len(sys.argv) < 3:
+        print("Usage:")
+        print(f"{sys.argv[0]} <mapcss_mapping_file> <drules_proto_file>")
+        exit(-1)
+
+    mapping_path = sys.argv[1]
+    drules_path = sys.argv[2]
+    ShowZoomInfo(mapping_path, drules_path)