examples/geometry/test-path.py → examples/geometry-engine/test-path.py

@@ -8,7 +8,7 @@ from Patro.GeometryEngine.Path import (
     LinearSegment, QuadraticBezierSegment, CubicBezierSegment
 )
 from Patro.GeometryEngine.Vector import Vector2D
-from Patro.GraphicEngine.GraphicScene.GraphicItem import GraphicPathStyle, GraphicBezierStyle
+from Patro.GraphicEngine.GraphicScene.GraphicStyle import GraphicPathStyle, GraphicBezierStyle
 from Patro.GraphicEngine.Painter.QtPainter import QtScene
 from Patro.GraphicStyle import Colors, StrokeStyle
 

examples/geometry-engine/test-seam-symbol.py

+####################################################################################################
+
+from Patro.Common.Logging import Logging
+Logging.setup_logging()
+
+from Patro.GeometryEngine.Conic import Circle2D
+from Patro.GeometryEngine.Path import (
+    Path2D,
+    LinearSegment, QuadraticBezierSegment, CubicBezierSegment
+)
+from Patro.GeometryEngine.Transformation import Transformation2D
+from Patro.GeometryEngine.Vector import Vector2D
+from Patro.GraphicEngine.GraphicScene.GraphicStyle import GraphicPathStyle, GraphicBezierStyle
+from Patro.GraphicEngine.Painter.QtPainter import QtScene
+from Patro.GraphicStyle import Colors, StrokeStyle, CapStyle
+
+####################################################################################################
+
+class SceneBuilder:
+
+    ##############################################
+
+    def __init__(self):
+
+        self._scene = QtScene()
+
+        self._bounding_box = None
+        self._line_width = 5.
+        for path in self._make_figure1():
+            self._add_item(path)
+        self._scene.bounding_box = self._bounding_box # Fixme:
+
+    ##############################################
+
+    @property
+    def scene(self):
+        return self._scene
+
+    ##############################################
+
+    def _update_bounding_box(self, item):
+
+        interval = item.bounding_box
+        if self._bounding_box is None:
+            self._bounding_box = interval
+        else:
+            self._bounding_box |= interval
+
+    ##############################################
+
+    def _make_figure1(self):
+
+        width = 30
+        space = 2
+        seam_length = width / 4
+        long_arm_length = width / 2
+        short_arm_length = long_arm_length * .6
+        height = 4
+        radius = 2
+
+        vertical_seam_position = short_arm_length * 2 / 3
+        vertical_seam_length = height * 1.5
+
+        right_side_length = width / 4
+        y_right_side = height * 1.5
+        right_side_circle_radius = 1
+
+        path1 = Path2D((short_arm_length + space/2, -height/2))
+        path1.west_to(short_arm_length)
+        path1.north_to(height, radius=radius)
+        path1.east_to(long_arm_length, radius=radius)
+
+        path2 = path1.x_mirror(clone=True)
+
+        path3 = Path2D((-seam_length/2, 0))
+        path3.east_to(seam_length)
+
+        path4 = Path2D((vertical_seam_position, -vertical_seam_length/2))
+        path4.north_to(vertical_seam_length)
+
+        path5 = path4.x_mirror(clone=True)
+
+        path6 = Path2D((-right_side_length/2, y_right_side))
+        path6.east_to(right_side_length)
+
+        circle = Circle2D((0, y_right_side), right_side_circle_radius)
+
+        return [path1, path2, path3, path4, path5, path6, circle]
+
+    ##############################################
+
+    def _add_item(self, item):
+
+        if isinstance(item, Path2D):
+            self._add_path(item)
+        elif isinstance(item, Circle2D):
+            self._add_circle(item)
+
+    ##############################################
+
+    def _add_path(self, path):
+
+        path_style = GraphicPathStyle(
+            line_width=self._line_width,
+            stroke_color=Colors.black,
+            stroke_style=StrokeStyle.SolidLine,
+            cap_style=CapStyle.RoundCap,
+        )
+
+        for item in path:
+            # print('Path part:', item)
+            if isinstance(item, LinearSegment):
+                # print('linear', item.start_point, item.stop_point, item.points)
+                if item.radius is not None:
+                    print('-'*10)
+                    print(item.bissector)
+                    print(item.bulge_angle, item.bulge_center, item.start_point, item.stop_point)
+                    print(item.bulge_geometry)
+                    arc = item.bulge_geometry
+                    self._scene.circle(arc.center, arc.radius,
+                                       path_style,
+                                       start_angle=arc.domain.start,
+                                       stop_angle=arc.domain.stop,
+                                       user_data=item,
+                    )
+                self._scene.segment(*item.points,
+                                    path_style,
+                                    user_data=item,
+                )
+            elif isinstance(item, QuadraticBezierSegment):
+                self._scene.quadratic_bezier(*item.points,
+                                             path_style,
+                                             user_data=item,
+                )
+            elif isinstance(item, CubicBezierSegment):
+                self._scene.cubic_bezier(*item.points,
+                                         path_style,
+                                         user_data=item,
+                )
+        # Fixme: why here ???
+        self._update_bounding_box(item)
+
+    ##############################################
+
+    def _add_circle(self, circle):
+
+        path_style = GraphicPathStyle(
+            line_width=self._line_width,
+            stroke_color=Colors.black,
+            stroke_style=StrokeStyle.SolidLine,
+        )
+
+        kwargs = dict(user_data=circle)
+        if circle.domain:
+            kwargs['start_angle'] = circle.domain.start
+            kwargs['stop_angle'] = circle.domain.stop
+        self._scene.circle(circle.center, circle.radius, path_style, **kwargs)
+        self._update_bounding_box(circle)
+
+####################################################################################################
+
+scene = QtScene()
+
+scene_builder = SceneBuilder()
+
+application.qml_application.scene = scene_builder.scene
+
+# from Patro.GraphicEngine.Painter.QtPainter import QtPainter
+# painter = QtPainter(scene_builder.scene)
+# painter.to_svg('out.svg')