Added "connect" option for painting polygons.

FlatCAMGUI.py

@@ -651,7 +651,9 @@ class GeometryOptionsGroupUI(OptionsGroupUI):
         )
         self.layout.addWidget(self.plot_cb)
 
+        # ------------------------------
         ## Create CNC Job
+        # ------------------------------
         self.cncjob_label = QtGui.QLabel('<b>Create CNC Job:</b>')
         self.cncjob_label.setToolTip(
             "Create a CNC Job object\n"
@@ -711,7 +713,9 @@ class GeometryOptionsGroupUI(OptionsGroupUI):
         self.cncspindlespeed_entry = IntEntry(allow_empty=True)
         grid1.addWidget(self.cncspindlespeed_entry, 4, 1)
 
+        # ------------------------------
         ## Paint area
+        # ------------------------------
         self.paint_label = QtGui.QLabel('<b>Paint Area:</b>')
         self.paint_label.setToolTip(
             "Creates tool paths to cover the\n"
@@ -756,19 +760,44 @@ class GeometryOptionsGroupUI(OptionsGroupUI):
         self.paintmargin_entry = LengthEntry()
         grid2.addWidget(self.paintmargin_entry, 2, 1)
 
+        # Method
+        methodlabel = QtGui.QLabel('Method:')
+        methodlabel.setToolTip(
+            "Algorithm to paint the polygon:<BR>"
+            "<B>Standard</B>: Fixed step inwards.<BR>"
+            "<B>Seed-based</B>: Outwards from seed."
+        )
+        grid2.addWidget(methodlabel, 3, 0)
+        self.paintmethod_combo = RadioSet([
+            {"label": "Standard", "value": "standard"},
+            {"label": "Seed-based", "value": "seed"},
+            {"label": "Straight lines", "value": "lines"}
+        ], orientation='vertical')
+        grid2.addWidget(self.paintmethod_combo, 3, 1)
+
+        # Connect lines
+        pathconnectlabel = QtGui.QLabel("Connect:")
+        pathconnectlabel.setToolTip(
+            "Draw lines between resulting\n"
+            "segments to minimize tool lifts."
+        )
+        grid2.addWidget(pathconnectlabel, 4, 0)
+        self.pathconnect_cb = FCCheckBox()
+        grid2.addWidget(self.pathconnect_cb, 4, 1)
+
         # Polygon selection
         selectlabel = QtGui.QLabel('Selection:')
         selectlabel.setToolTip(
             "How to select the polygons to paint."
         )
-        grid2.addWidget(selectlabel, 3, 0)
+        grid2.addWidget(selectlabel, 5, 0)
         # grid3 = QtGui.QGridLayout()
         self.selectmethod_combo = RadioSet([
             {"label": "Single", "value": "single"},
             {"label": "All", "value": "all"},
             # {"label": "Rectangle", "value": "rectangle"}
         ])
-        grid2.addWidget(self.selectmethod_combo, 3, 1)
+        grid2.addWidget(self.selectmethod_combo, 5, 1)
 
 
 class CNCJobOptionsGroupUI(OptionsGroupUI):

FlatCAMObj.py

@@ -1210,6 +1210,7 @@ class FlatCAMGeometry(FlatCAMObj, Geometry):
             "paintoverlap": 0.15,
             "paintmargin": 0.01,
             "paintmethod": "standard",
+            "pathconnect": True,
             "multidepth": False,
             "depthperpass": 0.002,
             "selectmethod": "single"
@@ -1242,6 +1243,7 @@ class FlatCAMGeometry(FlatCAMObj, Geometry):
             "paintoverlap": self.ui.paintoverlap_entry,
             "paintmargin": self.ui.paintmargin_entry,
             "paintmethod": self.ui.paintmethod_combo,
+            "pathconnect": self.ui.pathconnect_cb,
             "multidepth": self.ui.mpass_cb,
             "depthperpass": self.ui.maxdepth_entry,
             "selectmethod": self.ui.selectmethod_combo
@@ -1259,7 +1261,8 @@ class FlatCAMGeometry(FlatCAMObj, Geometry):
         overlap = self.options["paintoverlap"]
 
         if self.options["selectmethod"] == "all":
-            self.paint_poly_all(tooldia, overlap)
+            self.paint_poly_all(tooldia, overlap,
+                                connect=self.option["pathconnect"])
             return
 
         if self.options["selectmethod"] == "single":
@@ -1270,11 +1273,13 @@ class FlatCAMGeometry(FlatCAMObj, Geometry):
                 self.app.info("Painting polygon...")
                 self.app.plotcanvas.mpl_disconnect(subscription)
                 point = [event.xdata, event.ydata]
-                self.paint_poly_single_click(point, tooldia, overlap)
+                self.paint_poly_single_click(point, tooldia, overlap,
+                                             connect=self.options["pathconnect"])
 
             subscription = self.app.plotcanvas.mpl_connect('button_press_event', doit)
 
-    def paint_poly_single_click(self, inside_pt, tooldia, overlap, outname=None):
+    def paint_poly_single_click(self, inside_pt, tooldia, overlap,
+                                outname=None, connect=True):
         """
         Paints a polygon selected by clicking on its interior.
 
@@ -1310,16 +1315,16 @@ class FlatCAMGeometry(FlatCAMObj, Geometry):
             if self.options["paintmethod"] == "seed":
                 # Type(cp) == FlatCAMRTreeStorage | None
                 cp = self.clear_polygon2(poly.buffer(-self.options["paintmargin"]),
-                                         tooldia, overlap=overlap)
+                                         tooldia, overlap=overlap, connect=connect)
 
             elif self.options["paintmethod"] == "lines":
                 # Type(cp) == FlatCAMRTreeStorage | None
                 cp = self.clear_polygon3(poly.buffer(-self.options["paintmargin"]),
-                                         tooldia, overlap=overlap)
+                                         tooldia, overlap=overlap, connect=connect)
             else:
                 # Type(cp) == FlatCAMRTreeStorage | None
                 cp = self.clear_polygon(poly.buffer(-self.options["paintmargin"]),
-                                        tooldia, overlap=overlap)
+                                        tooldia, overlap=overlap, connect=connect)
 
             if cp is not None:
                 geo_obj.solid_geometry = list(cp.get_objects())

GUIElements.py

@@ -16,6 +16,8 @@ class RadioSet(QtGui.QWidget):
         * 'value': The value returned is selected
 
         :param choices: List of choices. See description.
+        :param orientation: 'horizontal' (default) of 'vertical'.
+        :param parent: Qt parent widget.
         :type choices: list
         """
         super(RadioSet, self).__init__(parent)

ObjectUI.py

@@ -385,6 +385,7 @@ class GeometryObjectUI(ObjectUI):
 
         # Method
         methodlabel = QtGui.QLabel('Method:')
+        methodlabel.setAlignment(QtCore.Qt.AlignLeft | QtCore.Qt.AlignTop)
         methodlabel.setToolTip(
             "Algorithm to paint the polygon:<BR>"
             "<B>Standard</B>: Fixed step inwards.<BR>"
@@ -395,22 +396,32 @@ class GeometryObjectUI(ObjectUI):
             {"label": "Standard", "value": "standard"},
             {"label": "Seed-based", "value": "seed"},
             {"label": "Straight lines", "value": "lines"}
-        ])
+        ], orientation='vertical')
         grid2.addWidget(self.paintmethod_combo, 3, 1)
 
+        # Connect lines
+        pathconnectlabel = QtGui.QLabel("Connect:")
+        pathconnectlabel.setToolTip(
+            "Draw lines between resulting\n"
+            "segments to minimize tool lifts."
+        )
+        grid2.addWidget(pathconnectlabel, 4, 0)
+        self.pathconnect_cb = FCCheckBox()
+        grid2.addWidget(self.pathconnect_cb, 4, 1)
+
         # Polygon selection
         selectlabel = QtGui.QLabel('Selection:')
         selectlabel.setToolTip(
             "How to select the polygons to paint."
         )
-        grid2.addWidget(selectlabel, 4, 0)
+        grid2.addWidget(selectlabel, 5, 0)
         #grid3 = QtGui.QGridLayout()
         self.selectmethod_combo = RadioSet([
             {"label": "Single", "value": "single"},
             {"label": "All", "value": "all"},
             #{"label": "Rectangle", "value": "rectangle"}
         ])
-        grid2.addWidget(self.selectmethod_combo, 4, 1)
+        grid2.addWidget(self.selectmethod_combo, 5, 1)
 
         # GO Button
         self.generate_paint_button = QtGui.QPushButton('Generate')

camlib.py

@@ -475,7 +475,7 @@ class Geometry(object):
         return boundary.difference(self.solid_geometry)
         
     @staticmethod
-    def clear_polygon(polygon, tooldia, overlap=0.15):
+    def clear_polygon(polygon, tooldia, overlap=0.15, connect=True):
         """
         Creates geometry inside a polygon for a tool to cover
         the whole area.
@@ -543,13 +543,14 @@ class Geometry(object):
                 break
 
         # Optimization: Reduce lifts
-        log.debug("Reducing tool lifts...")
+        if connect:
-        geoms = Geometry.paint_connect(geoms, polygon, tooldia)
+            log.debug("Reducing tool lifts...")
+            geoms = Geometry.paint_connect(geoms, polygon, tooldia)
 
         return geoms
 
     @staticmethod
-    def clear_polygon2(polygon, tooldia, seedpoint=None, overlap=0.15):
+    def clear_polygon2(polygon, tooldia, seedpoint=None, overlap=0.15, connect=True):
         """
         Creates geometry inside a polygon for a tool to cover
         the whole area.
@@ -622,8 +623,9 @@ class Geometry(object):
         # geoms = Geometry.path_connect(geoms)
 
         # Optimization: Reduce lifts
-        log.debug("Reducing tool lifts...")
+        if connect:
-        geoms = Geometry.paint_connect(geoms, polygon, tooldia)
+            log.debug("Reducing tool lifts...")
+            geoms = Geometry.paint_connect(geoms, polygon, tooldia)
 
         return geoms