- added a new FlatCAM Tool: Gerber Invert Tool. It will invert the copper features in a Gerber file: where is copper there will be empty and where is empty it will be copper

FlatCAMApp.py

@@ -14,7 +14,7 @@ import getopt
 import random
 import simplejson as json
 import lzma
-import threading
+# import threading
 import shutil
 import stat
 
@@ -26,7 +26,7 @@ import ctypes
 
 from reportlab.graphics import renderPDF
 from reportlab.pdfgen import canvas
-from reportlab.graphics import renderPM
+# from reportlab.graphics import renderPM
 from reportlab.lib.units import inch, mm
 from reportlab.lib.pagesizes import landscape, portrait
 from svglib.svglib import svg2rlg
@@ -39,9 +39,9 @@ from xml.dom.minidom import parseString as parse_xml_string
 from multiprocessing.connection import Listener, Client
 from multiprocessing import Pool
 import socket
-from array import array
+# from array import array
 
-import vispy.scene as scene
+# import vispy.scene as scene
 
 # #######################################
 # #      Imports part of FlatCAM       ##
@@ -1306,7 +1306,7 @@ class App(QtCore.QObject):
             # Excellon Options
             "excellon_drillz": self.ui.excellon_defaults_form.excellon_opt_group.cutz_entry,
             "excellon_multidepth": self.ui.excellon_defaults_form.excellon_opt_group.mpass_cb,
-            "excellon_depthperpass":self.ui.excellon_defaults_form.excellon_opt_group.maxdepth_entry,
+            "excellon_depthperpass": self.ui.excellon_defaults_form.excellon_opt_group.maxdepth_entry,
             "excellon_travelz": self.ui.excellon_defaults_form.excellon_opt_group.travelz_entry,
             "excellon_endz": self.ui.excellon_defaults_form.excellon_opt_group.endz_entry,
             "excellon_feedrate": self.ui.excellon_defaults_form.excellon_opt_group.feedrate_z_entry,
@@ -2558,6 +2558,7 @@ class App(QtCore.QObject):
         self.edrills_tool = None
         self.align_objects_tool = None
         self.punch_tool = None
+        self.invert_tool = None
 
         # always install tools only after the shell is initialized because the self.inform.emit() depends on shell
         try:
@@ -2724,6 +2725,8 @@ class App(QtCore.QObject):
         # this holds a widget that is installed in the Plot Area when View Source option is used
         self.source_editor_tab = None
 
+        self.pagesize = dict()
+
         # Storage for shapes, storage that can be used by FlatCAm tools for utility geometry
         # VisPy visuals
         if self.is_legacy is False:
@@ -3194,6 +3197,9 @@ class App(QtCore.QObject):
         self.punch_tool = ToolPunchGerber(self)
         self.punch_tool.install(icon=QtGui.QIcon(self.resource_location + '/punch32.png'), pos=self.ui.menutool)
 
+        self.invert_tool = ToolInvertGerber(self)
+        self.invert_tool.install(icon=QtGui.QIcon(self.resource_location + '/invert32.png'), pos=self.ui.menutool)
+
         self.transform_tool = ToolTransform(self)
         self.transform_tool.install(icon=QtGui.QIcon(self.resource_location + '/transform.png'),
                                     pos=self.ui.menuoptions, separator=True)
@@ -3338,6 +3344,7 @@ class App(QtCore.QObject):
         self.ui.copperfill_btn.triggered.connect(lambda: self.copper_thieving_tool.run(toggle=True))
         self.ui.fiducials_btn.triggered.connect(lambda: self.fiducial_tool.run(toggle=True))
         self.ui.punch_btn.triggered.connect(lambda: self.punch_tool.run(toggle=True))
+        self.ui.invert_btn.triggered.connect(lambda: self.invert_tool.run(toggle=True))
 
     def object2editor(self):
         """
@@ -8716,14 +8723,14 @@ class App(QtCore.QObject):
         else:
             event_pos = (event.xdata, event.ydata)
             # Matplotlib has the middle and right buttons mapped in reverse compared with VisPy
-            pan_button = 3 if self.defaults["global_pan_button"] == '2'else 2
+            pan_button = 3 if self.defaults["global_pan_button"] == '2' else 2
 
         # So it can receive key presses
         self.plotcanvas.native.setFocus()
 
         self.pos_canvas = self.plotcanvas.translate_coords(event_pos)
 
-        if self.grid_status() == True:
+        if self.grid_status():
             self.pos = self.geo_editor.snap(self.pos_canvas[0], self.pos_canvas[1])
         else:
             self.pos = (self.pos_canvas[0], self.pos_canvas[1])

FlatCAMObj.py

@@ -2164,14 +2164,17 @@ class FlatCAMGerber(FlatCAMObj, Gerber):
                                 gerber_code += 'D02*\n'
                                 gerber_code += 'G37*\n'
                                 gerber_code += '%LPD*%\n'
+        except Exception as e:
+            log.debug("FlatCAMObj.FlatCAMGerber.export_gerber() '0' aperture --> %s" % str(e))
 
-            for apid in self.apertures:
-                if apid == '0':
-                    continue
-                else:
-                    gerber_code += 'D%s*\n' % str(apid)
-                    if 'geometry' in self.apertures[apid]:
-                        for geo_elem in self.apertures[apid]['geometry']:
+        for apid in self.apertures:
+            if apid == '0':
+                continue
+            else:
+                gerber_code += 'D%s*\n' % str(apid)
+                if 'geometry' in self.apertures[apid]:
+                    for geo_elem in self.apertures[apid]['geometry']:
+                        try:
                             if 'follow' in geo_elem:
                                 geo = geo_elem['follow']
                                 if not geo.is_empty:
@@ -2212,7 +2215,10 @@ class FlatCAMGerber(FlatCAMObj, Gerber):
                                             prev_coord = coord
 
                                         # gerber_code += "D02*\n"
+                        except Exception as e:
+                            log.debug("FlatCAMObj.FlatCAMGerber.export_gerber() 'follow' --> %s" % str(e))
 
+                        try:
                             if 'clear' in geo_elem:
                                 gerber_code += '%LPC*%\n'
 
@@ -2256,9 +2262,8 @@ class FlatCAMGerber(FlatCAMObj, Gerber):
                                             prev_coord = coord
                                         # gerber_code += "D02*\n"
                                     gerber_code += '%LPD*%\n'
-
-        except Exception as e:
-            log.debug("FlatCAMObj.FlatCAMGerber.export_gerber() --> %s" % str(e))
+                        except Exception as e:
+                            log.debug("FlatCAMObj.FlatCAMGerber.export_gerber() 'clear' --> %s" % str(e))
 
         if not self.apertures:
             log.debug("FlatCAMObj.FlatCAMGerber.export_gerber() --> Gerber Object is empty: no apertures.")

README.md

@@ -12,6 +12,7 @@ CAD program, and create G-Code for Isolation routing.
 14.02.2020
 
 - adjusted the UI for Excellon and Geometry objects
+- added a new FlatCAM Tool: Gerber Invert Tool. It will invert the copper features in a Gerber file: where is copper there will be empty and where is empty it will be copper
 
 13.02.2020
 

flatcamGUI/FlatCAMGUI.py

@@ -928,6 +928,8 @@ class FlatCAMGUI(QtWidgets.QMainWindow):
             QtGui.QIcon(self.app.resource_location + '/calibrate_32.png'), _("Calibration Tool"))
         self.punch_btn = self.toolbartools.addAction(
             QtGui.QIcon(self.app.resource_location + '/punch32.png'), _("Punch Gerber Tool"))
+        self.invert_btn = self.toolbartools.addAction(
+            QtGui.QIcon(self.app.resource_location + '/invert32.png'), _("Invert Gerber Tool"))
 
         # ########################################################################
         # ########################## Excellon Editor Toolbar# ####################

flatcamParsers/ParseGerber.py

@@ -1414,9 +1414,12 @@ class Gerber(Geometry):
             self.follow_geometry = follow_buffer
 
             # this treats the case when we are storing geometry as solids
-
-            if len(poly_buffer) == 0 and len(self.solid_geometry) == 0:
-                log.error("Object is not Gerber file or empty. Aborting Object creation.")
+            try:
+                if len(poly_buffer) == 0 and len(self.solid_geometry) == 0:
+                    log.error("Object is not Gerber file or empty. Aborting Object creation.")
+                    return 'fail'
+            except TypeError as e:
+                log.error("Object is not Gerber file or empty. Aborting Object creation. %s" % str(e))
                 return 'fail'
 
             log.warning("Joining %d polygons." % len(poly_buffer))

flatcamTools/ToolInvertGerber.py

@@ -0,0 +1,274 @@
+# ##########################################################
+# FlatCAM: 2D Post-processing for Manufacturing            #
+# File Author: Marius Adrian Stanciu (c)                   #
+# Date: 2/14/2020                                          #
+# MIT Licence                                              #
+# ##########################################################
+
+from PyQt5 import QtWidgets, QtCore
+
+from FlatCAMTool import FlatCAMTool
+from flatcamGUI.GUIElements import FCButton, FCDoubleSpinner
+
+from shapely.geometry import Polygon, MultiPolygon, MultiLineString, LineString, box
+from shapely.ops import cascaded_union
+
+import traceback
+from copy import deepcopy
+import time
+import logging
+import gettext
+import FlatCAMTranslation as fcTranslate
+import builtins
+
+fcTranslate.apply_language('strings')
+if '_' not in builtins.__dict__:
+    _ = gettext.gettext
+
+log = logging.getLogger('base')
+
+
+class ToolInvertGerber(FlatCAMTool):
+
+    toolName = _("Invert Tool")
+
+    def __init__(self, app):
+        self.app = app
+        self.decimals = self.app.decimals
+
+        FlatCAMTool.__init__(self, app)
+
+        self.tools_frame = QtWidgets.QFrame()
+        self.tools_frame.setContentsMargins(0, 0, 0, 0)
+        self.layout.addWidget(self.tools_frame)
+        self.tools_box = QtWidgets.QVBoxLayout()
+        self.tools_box.setContentsMargins(0, 0, 0, 0)
+        self.tools_frame.setLayout(self.tools_box)
+
+        # Title
+        title_label = QtWidgets.QLabel("%s" % self.toolName)
+        title_label.setStyleSheet("""
+                        QLabel
+                        {
+                            font-size: 16px;
+                            font-weight: bold;
+                        }
+                        """)
+        self.tools_box.addWidget(title_label)
+
+        # Form Layout
+        grid0 = QtWidgets.QGridLayout()
+        grid0.setColumnStretch(0, 0)
+        grid0.setColumnStretch(1, 1)
+        self.tools_box.addLayout(grid0)
+
+        grid0.addWidget(QtWidgets.QLabel(''), 0, 0, 1, 2)
+
+        # Target Gerber Object
+        self.gerber_combo = QtWidgets.QComboBox()
+        self.gerber_combo.setModel(self.app.collection)
+        self.gerber_combo.setRootModelIndex(self.app.collection.index(0, 0, QtCore.QModelIndex()))
+        self.gerber_combo.setCurrentIndex(1)
+
+        self.gerber_label = QtWidgets.QLabel('%s:' % _("Gerber Object"))
+        self.gerber_label.setToolTip(
+            _("Gerber object that will be inverted.")
+        )
+
+        grid0.addWidget(self.gerber_label, 1, 0, 1, 2)
+        grid0.addWidget(self.gerber_combo, 2, 0, 1, 2)
+
+        # Margin
+        self.margin_label = QtWidgets.QLabel('%s:' % _('Margin'))
+        self.margin_label.setToolTip(
+            _("Distance by which to avoid\n"
+              "the edges of the Gerber object.")
+        )
+        self.margin_entry = FCDoubleSpinner()
+        self.margin_entry.set_precision(self.decimals)
+        self.margin_entry.set_range(0.0000, 9999.9999)
+        self.margin_entry.setObjectName(_("Margin"))
+
+        grid0.addWidget(self.margin_label, 3, 0)
+        grid0.addWidget(self.margin_entry, 3, 1)
+
+        separator_line = QtWidgets.QFrame()
+        separator_line.setFrameShape(QtWidgets.QFrame.HLine)
+        separator_line.setFrameShadow(QtWidgets.QFrame.Sunken)
+        grid0.addWidget(separator_line, 4, 0, 1, 2)
+
+        self.invert_btn = FCButton(_('Invert Gerber'))
+        self.invert_btn.setToolTip(
+            _("Will invert the Gerber object: areas that have copper\n"
+              "will be emty of copper and previous empty area will be\n"
+              "filled with copper.")
+        )
+        self.invert_btn.setStyleSheet("""
+                        QPushButton
+                        {
+                            font-weight: bold;
+                        }
+                        """)
+        grid0.addWidget(self.invert_btn, 5, 0, 1, 2)
+
+        self.tools_box.addStretch()
+
+        # ## Reset Tool
+        self.reset_button = QtWidgets.QPushButton(_("Reset Tool"))
+        self.reset_button.setToolTip(
+            _("Will reset the tool parameters.")
+        )
+        self.reset_button.setStyleSheet("""
+                        QPushButton
+                        {
+                            font-weight: bold;
+                        }
+                        """)
+        self.tools_box.addWidget(self.reset_button)
+
+        self.invert_btn.clicked.connect(self.on_grb_invert)
+        self.reset_button.clicked.connect(self.set_tool_ui)
+
+    def install(self, icon=None, separator=None, **kwargs):
+        FlatCAMTool.install(self, icon, separator, shortcut='', **kwargs)
+
+    def run(self, toggle=True):
+        self.app.report_usage("ToolInvertGerber()")
+        log.debug("ToolInvertGerber() is running ...")
+
+        if toggle:
+            # if the splitter is hidden, display it, else hide it but only if the current widget is the same
+            if self.app.ui.splitter.sizes()[0] == 0:
+                self.app.ui.splitter.setSizes([1, 1])
+            else:
+                try:
+                    if self.app.ui.tool_scroll_area.widget().objectName() == self.toolName:
+                        # if tab is populated with the tool but it does not have the focus, focus on it
+                        if not self.app.ui.notebook.currentWidget() is self.app.ui.tool_tab:
+                            # focus on Tool Tab
+                            self.app.ui.notebook.setCurrentWidget(self.app.ui.tool_tab)
+                        else:
+                            self.app.ui.splitter.setSizes([0, 1])
+                except AttributeError:
+                    pass
+        else:
+            if self.app.ui.splitter.sizes()[0] == 0:
+                self.app.ui.splitter.setSizes([1, 1])
+
+        FlatCAMTool.run(self)
+        self.set_tool_ui()
+
+        self.app.ui.notebook.setTabText(2, _("Invert Tool"))
+
+    def set_tool_ui(self):
+        self.margin_entry.set_value(0.0)
+
+    def on_grb_invert(self):
+        margin = self.margin_entry.get_value()
+        if round(margin, self.decimals) == 0.0:
+            margin = 1E-10
+
+        grb_circle_steps = int(self.app.defaults["gerber_circle_steps"])
+        obj_name = self.gerber_combo.currentText()
+
+        outname = obj_name + "_inverted"
+
+        # Get source object.
+        try:
+            grb_obj = self.app.collection.get_by_name(obj_name)
+        except Exception as e:
+            self.app.inform.emit('[ERROR_NOTCL] %s: %s' % (_("Could not retrieve object"), str(obj_name)))
+            return "Could not retrieve object: %s with error: %s" % (obj_name, str(e))
+
+        if grb_obj is None:
+            self.app.inform.emit('[ERROR_NOTCL] %s: %s' % (_("Object not found"), str(obj_name)))
+            return
+
+        xmin, ymin, xmax, ymax = grb_obj.bounds()
+
+        grb_box = box(xmin, ymin, xmax, ymax).buffer(margin, resolution=grb_circle_steps, join_style=2)
+
+        try:
+            __ = iter(grb_obj.solid_geometry)
+        except TypeError:
+            grb_obj.solid_geometry = list(grb_obj.solid_geometry)
+
+        new_solid_geometry = deepcopy(grb_box)
+
+        for poly in grb_obj.solid_geometry:
+            new_solid_geometry = new_solid_geometry.difference(poly)
+
+        new_options = dict()
+        for opt in grb_obj.options:
+            new_options[opt] = deepcopy(grb_obj.options[opt])
+
+        new_apertures = dict()
+
+        # for apid, val in grb_obj.apertures.items():
+        #     new_apertures[apid] = dict()
+        #     for key in val:
+        #         if key == 'geometry':
+        #             new_apertures[apid]['geometry'] = list()
+        #             for elem in val['geometry']:
+        #                 geo_elem = dict()
+        #                 if 'follow' in elem:
+        #                     try:
+        #                         geo_elem['clear'] = elem['follow'].buffer(val['size'] / 2.0).exterior
+        #                     except AttributeError:
+        #                         # TODO should test if width or height is bigger
+        #                         geo_elem['clear'] = elem['follow'].buffer(val['width'] / 2.0).exterior
+        #                 if 'clear' in elem:
+        #                     if isinstance(elem['clear'], Polygon):
+        #                         try:
+        #                             geo_elem['solid'] = elem['clear'].buffer(val['size'] / 2.0, grb_circle_steps)
+        #                         except AttributeError:
+        #                             # TODO should test if width or height is bigger
+        #                             geo_elem['solid'] = elem['clear'].buffer(val['width'] / 2.0, grb_circle_steps)
+        #                     else:
+        #                         geo_elem['follow'] = elem['clear']
+        #                 new_apertures[apid]['geometry'].append(deepcopy(geo_elem))
+        #         else:
+        #             new_apertures[apid][key] = deepcopy(val[key])
+
+        if '0' not in new_apertures:
+            new_apertures['0'] = dict()
+            new_apertures['0']['type'] = 'C'
+            new_apertures['0']['size'] = 0.0
+            new_apertures['0']['geometry'] = list()
+
+        try:
+            for poly in new_solid_geometry:
+                new_el = dict()
+                new_el['solid'] = poly
+                new_el['follow'] = poly.exterior
+                new_apertures['0']['geometry'].append(new_el)
+        except TypeError:
+            new_el = dict()
+            new_el['solid'] = new_solid_geometry
+            new_el['follow'] = new_solid_geometry.exterior
+            new_apertures['0']['geometry'].append(new_el)
+
+        for td in new_apertures:
+            print(td, new_apertures[td])
+
+        def init_func(new_obj, app_obj):
+            new_obj.options.update(new_options)
+            new_obj.options['name'] = outname
+            new_obj.fill_color = deepcopy(grb_obj.fill_color)
+            new_obj.outline_color = deepcopy(grb_obj.outline_color)
+
+            new_obj.apertures = deepcopy(new_apertures)
+
+            new_obj.solid_geometry = deepcopy(new_solid_geometry)
+            new_obj.source_file = self.app.export_gerber(obj_name=outname, filename=None,
+                                                         local_use=new_obj, use_thread=False)
+
+        self.app.new_object('gerber', outname, init_func)
+
+    def reset_fields(self):
+        self.gerber_combo.setRootModelIndex(self.app.collection.index(0, 0, QtCore.QModelIndex()))
+
+    @staticmethod
+    def poly2rings(poly):
+        return [poly.exterior] + [interior for interior in poly.interiors]
+# end of file

flatcamTools/ToolPaint.py

@@ -358,6 +358,7 @@ class ToolPaint(FlatCAMTool, Gerber):
         )
         self.paintmargin_entry = FCDoubleSpinner()
         self.paintmargin_entry.set_precision(self.decimals)
+        self.paintmargin_entry.set_range(-9999.9999, 9999.9999)
         self.paintmargin_entry.setObjectName(_("Margin"))
 
         grid4.addWidget(marginlabel, 2, 0)

flatcamTools/ToolPunchGerber.py

@@ -515,6 +515,8 @@ class ToolPunchGerber(FlatCAMTool):
 
         punch_method = self.method_punch.get_value()
 
+        new_options = deepcopy(grb_obj.options)
+
         if punch_method == 'exc':
 
             # get the Excellon file whose geometry will create the punch holes
@@ -574,7 +576,7 @@ class ToolPunchGerber(FlatCAMTool):
                 new_apertures[str(new_apid)] = deepcopy(ap_val)
 
             def init_func(new_obj, app_obj):
-                new_obj.options.update(grb_obj.options)
+                new_obj.options.update(new_options)
                 new_obj.options['name'] = outname
                 new_obj.fill_color = deepcopy(grb_obj.fill_color)
                 new_obj.outline_color = deepcopy(grb_obj.outline_color)
@@ -688,7 +690,7 @@ class ToolPunchGerber(FlatCAMTool):
                 new_apertures[str(new_apid)] = deepcopy(ap_val)
 
             def init_func(new_obj, app_obj):
-                new_obj.options.update(grb_obj.options)
+                new_obj.options.update(new_options)
                 new_obj.options['name'] = outname
                 new_obj.fill_color = deepcopy(grb_obj.fill_color)
                 new_obj.outline_color = deepcopy(grb_obj.outline_color)
@@ -830,7 +832,7 @@ class ToolPunchGerber(FlatCAMTool):
                 new_apertures[str(new_apid)] = deepcopy(ap_val)
 
             def init_func(new_obj, app_obj):
-                new_obj.options.update(grb_obj.options)
+                new_obj.options.update(new_options)
                 new_obj.options['name'] = outname
                 new_obj.fill_color = deepcopy(grb_obj.fill_color)
                 new_obj.outline_color = deepcopy(grb_obj.outline_color)
@@ -969,7 +971,7 @@ class ToolPunchGerber(FlatCAMTool):
                 new_apertures[str(new_apid)] = deepcopy(ap_val)
 
             def init_func(new_obj, app_obj):
-                new_obj.options.update(grb_obj.options)
+                new_obj.options.update(new_options)
                 new_obj.options['name'] = outname
                 new_obj.fill_color = deepcopy(grb_obj.fill_color)
                 new_obj.outline_color = deepcopy(grb_obj.outline_color)

flatcamTools/ToolSub.py

@@ -254,14 +254,14 @@ class ToolSub(FlatCAMTool):
         FlatCAMTool.run(self)
         self.set_tool_ui()
 
+        self.app.ui.notebook.setTabText(2, _("Sub Tool"))
+
+    def set_tool_ui(self):
         self.new_apertures.clear()
         self.new_tools.clear()
         self.new_solid_geometry = []
         self.target_options.clear()
 
-        self.app.ui.notebook.setTabText(2, _("Sub Tool"))
-
-    def set_tool_ui(self):
         self.tools_frame.show()
         self.close_paths_cb.setChecked(self.app.defaults["tools_sub_close_paths"])
 

flatcamTools/__init__.py

@@ -39,3 +39,5 @@ from flatcamTools.ToolSub import ToolSub
 
 from flatcamTools.ToolTransform import ToolTransform
 from flatcamTools.ToolPunchGerber import ToolPunchGerber
+
+from flatcamTools.ToolInvertGerber import ToolInvertGerber