Adding upstream version 1.2.2.upstream/1.2.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 297 insertions, 0 deletions

diff --git a/share/extensions/grid_cartesian.py b/share/extensions/grid_cartesian.py
new file mode 100755
index 0000000..e2082c1
--- /dev/null
+++ b/share/extensions/grid_cartesian.py
@@ -0,0 +1,297 @@
+#!/usr/bin/env python
+# coding=utf-8
+#
+# Copyright (C) 2007 John Beard john.j.beard@gmail.com
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+"""
+This extension allows you to draw a Cartesian grid in Inkscape.
+
+There is a wide range of options including subdivision, subsubdivions and
+logarithmic scales. Custom line widths are also possible.
+
+All elements are grouped with similar elements (eg all x-subdivs)
+"""
+
+from math import log
+
+import inkex
+from inkex import Group, PathElement, Rectangle
+
+
+def draw_line(x1, y1, x2, y2, width, name, parent):
+    """Draw an SVG line"""
+    line = parent.add(PathElement())
+    line.style = {"stroke": "#000000", "stroke-width": str(width), "fill": "none"}
+    line.path = "M {},{} L {},{}".format(x1, y1, x2, y2)
+    line.label = name
+
+
+def draw_rect(x, y, w, h, width, fill, name, parent):
+    """Draw an SVG Rectangle"""
+    rect = parent.add(Rectangle(x=str(x), y=str(y), width=str(w), height=str(h)))
+    rect.style = {"stroke": "#000000", "stroke-width": str(width), "fill": fill}
+    rect.label = name
+
+
+class GridCartesian(inkex.GenerateExtension):
+    def add_arguments(self, pars):
+        pars.add_argument("--border_th", type=float, default=1.0)
+        pars.add_argument("--border_th_unit", default="px")
+        pars.add_argument("--tab", default="x_tab")
+        pars.add_argument("--x_divs", type=int, default=6)
+        pars.add_argument("--dx", type=float, default=5.0)
+        pars.add_argument("--dx_unit", default="mm")
+        pars.add_argument("--x_subdivs", type=int, default=1)
+        pars.add_argument("--x_log", type=inkex.Boolean, default=False)
+        pars.add_argument("--x_subsubdivs", type=int, default=1)
+        pars.add_argument("--x_half_freq", type=int, default=1)
+        pars.add_argument("--x_divs_th", type=float, default=1.0)
+        pars.add_argument("--x_subdivs_th", type=float, default=0.5)
+        pars.add_argument("--x_subsubdivs_th", type=float, default=0.3)
+        pars.add_argument("--x_div_unit", default="px")
+        pars.add_argument("--y_divs", type=int, default=5)
+        pars.add_argument("--dy", type=float, default=5.0)
+        pars.add_argument("--dy_unit", default="mm")
+        pars.add_argument("--y_subdivs", type=int, default=1)
+        pars.add_argument("--y_log", type=inkex.Boolean, default=False)
+        pars.add_argument("--y_subsubdivs", type=int, default=5)
+        pars.add_argument("--y_half_freq", type=int, default=1)
+        pars.add_argument("--y_divs_th", type=float, default=1.0)
+        pars.add_argument("--y_subdivs_th", type=float, default=0.5)
+        pars.add_argument("--y_subsubdivs_th", type=float, default=0.3)
+        pars.add_argument("--y_div_unit", default="px")
+
+    def generate(self):
+        self.options.border_th = self.svg.unittouu(
+            str(self.options.border_th) + self.options.border_th_unit
+        )
+
+        self.options.dx = self.svg.unittouu(str(self.options.dx) + self.options.dx_unit)
+        self.options.x_divs_th = self.svg.unittouu(
+            str(self.options.x_divs_th) + self.options.x_div_unit
+        )
+        self.options.x_subdivs_th = self.svg.unittouu(
+            str(self.options.x_subdivs_th) + self.options.x_div_unit
+        )
+        self.options.x_subsubdivs_th = self.svg.unittouu(
+            str(self.options.x_subsubdivs_th) + self.options.x_div_unit
+        )
+
+        self.options.dy = self.svg.unittouu(str(self.options.dy) + self.options.dy_unit)
+        self.options.y_divs_th = self.svg.unittouu(
+            str(self.options.y_divs_th) + self.options.y_div_unit
+        )
+        self.options.y_subdivs_th = self.svg.unittouu(
+            str(self.options.y_subdivs_th) + self.options.y_div_unit
+        )
+        self.options.y_subsubdivs_th = self.svg.unittouu(
+            str(self.options.y_subsubdivs_th) + self.options.y_div_unit
+        )
+
+        # find the pixel dimensions of the overall grid
+        ymax = self.options.dy * self.options.y_divs
+        xmax = self.options.dx * self.options.x_divs
+
+        # Embed grid in group
+        # Put in in the centre of the current view
+
+        grid = Group.new("GridCartesian:X{0.x_divs}:Y{0.y_divs}".format(self.options))
+
+        (pos_x, pos_y) = self.svg.namedview.center
+        grid.transform.add_translate(pos_x - xmax / 2.0, pos_y - ymax / 2.0)
+
+        # Group for major x gridlines
+        majglx = grid.add(Group.new("MajorXGridlines"))
+        # Group for major y gridlines
+        majgly = grid.add(Group.new("MajorYGridlines"))
+
+        # Group for minor x gridlines
+        if self.options.x_subdivs > 1:  # if there are any minor x gridlines
+            minglx = grid.add(Group.new("MinorXGridlines"))
+
+        # Group for subminor x gridlines
+        if self.options.x_subsubdivs > 1:  # if there are any minor minor x gridlines
+            mminglx = grid.add(Group.new("SubMinorXGridlines"))
+
+        # Group for minor y gridlines
+        if self.options.y_subdivs > 1:  # if there are any minor y gridlines
+            mingly = grid.add(Group.new("MinorYGridlines"))
+
+        # Group for subminor y gridlines
+        if self.options.y_subsubdivs > 1:  # if there are any minor minor x gridlines
+            mmingly = grid.add(Group.new("SubMinorYGridlines"))
+
+        draw_rect(
+            0, 0, xmax, ymax, self.options.border_th, "none", "Border", grid
+        )  # border rectangle
+
+        # DO THE X DIVISIONS======================================
+        sd = self.options.x_subdivs  # sub divs per div
+        ssd = self.options.x_subsubdivs  # subsubdivs per subdiv
+
+        for i in range(0, self.options.x_divs):  # Major x divisions
+            if i > 0:  # don't draw first line (we made a proper border)
+                draw_line(
+                    self.options.dx * i,
+                    0,
+                    self.options.dx * i,
+                    ymax,
+                    self.options.x_divs_th,
+                    "MajorXDiv" + str(i),
+                    majglx,
+                )
+
+            if self.options.x_log:  # log x subdivs
+                for j in range(1, sd):
+                    if j > 1:  # the first loop is only for subsubdivs
+                        draw_line(
+                            self.options.dx * (i + log(j, sd)),
+                            0,
+                            self.options.dx * (i + log(j, sd)),
+                            ymax,
+                            self.options.x_subdivs_th,
+                            "MinorXDiv" + str(i) + ":" + str(j),
+                            minglx,
+                        )
+
+                    for k in range(1, ssd):  # subsub divs
+                        if (j <= self.options.x_half_freq) or (
+                            k % 2 == 0
+                        ):  # only draw half the subsubdivs past the half-freq point
+                            if (ssd % 2 > 0) and (
+                                j > self.options.y_half_freq
+                            ):  # half frequency won't work with odd numbers of subsubdivs,
+                                ssd2 = ssd + 1  # make even
+                            else:
+                                ssd2 = ssd  # no change
+                            draw_line(
+                                self.options.dx * (i + log(j + k / float(ssd2), sd)),
+                                0,
+                                self.options.dx * (i + log(j + k / float(ssd2), sd)),
+                                ymax,
+                                self.options.x_subsubdivs_th,
+                                "SubminorXDiv" + str(i) + ":" + str(j) + ":" + str(k),
+                                mminglx,
+                            )
+
+            else:  # linear x subdivs
+                for j in range(0, sd):
+                    if (
+                        j > 0
+                    ):  # not for the first loop (this loop is for the subsubdivs before the first subdiv)
+                        draw_line(
+                            self.options.dx * (i + j / float(sd)),
+                            0,
+                            self.options.dx * (i + j / float(sd)),
+                            ymax,
+                            self.options.x_subdivs_th,
+                            "MinorXDiv" + str(i) + ":" + str(j),
+                            minglx,
+                        )
+
+                    for k in range(1, ssd):  # subsub divs
+                        draw_line(
+                            self.options.dx * (i + (j * ssd + k) / (float(sd) * ssd)),
+                            0,
+                            self.options.dx * (i + (j * ssd + k) / (float(sd) * ssd)),
+                            ymax,
+                            self.options.x_subsubdivs_th,
+                            "SubminorXDiv" + str(i) + ":" + str(j) + ":" + str(k),
+                            mminglx,
+                        )
+
+        # DO THE Y DIVISIONS========================================
+        sd = self.options.y_subdivs  # sub divs per div
+        ssd = self.options.y_subsubdivs  # subsubdivs per subdiv
+
+        for i in range(0, self.options.y_divs):  # Major y divisions
+            if i > 0:  # don't draw first line (we will make a border)
+                draw_line(
+                    0,
+                    self.options.dy * i,
+                    xmax,
+                    self.options.dy * i,
+                    self.options.y_divs_th,
+                    "MajorYDiv" + str(i),
+                    majgly,
+                )
+
+            if self.options.y_log:  # log y subdivs
+                for j in range(1, sd):
+                    if j > 1:  # the first loop is only for subsubdivs
+                        draw_line(
+                            0,
+                            self.options.dy * (i + 1 - log(j, sd)),
+                            xmax,
+                            self.options.dy * (i + 1 - log(j, sd)),
+                            self.options.y_subdivs_th,
+                            "MinorXDiv" + str(i) + ":" + str(j),
+                            mingly,
+                        )
+
+                    for k in range(1, ssd):  # subsub divs
+                        if (j <= self.options.y_half_freq) or (
+                            k % 2 == 0
+                        ):  # only draw half the subsubdivs past the half-freq point
+                            if (ssd % 2 > 0) and (
+                                j > self.options.y_half_freq
+                            ):  # half frequency won't work with odd numbers of subsubdivs,
+                                ssd2 = ssd + 1
+                            else:
+                                ssd2 = ssd  # no change
+                            draw_line(
+                                0,
+                                self.options.dx
+                                * (i + 1 - log(j + k / float(ssd2), sd)),
+                                xmax,
+                                self.options.dx
+                                * (i + 1 - log(j + k / float(ssd2), sd)),
+                                self.options.y_subsubdivs_th,
+                                "SubminorXDiv" + str(i) + ":" + str(j) + ":" + str(k),
+                                mmingly,
+                            )
+            else:  # linear y subdivs
+                for j in range(0, self.options.y_subdivs):
+                    if (
+                        j > 0
+                    ):  # not for the first loop (this loop is for the subsubdivs before the first subdiv)
+                        draw_line(
+                            0,
+                            self.options.dy * (i + j / float(sd)),
+                            xmax,
+                            self.options.dy * (i + j / float(sd)),
+                            self.options.y_subdivs_th,
+                            "MinorXYiv" + str(i) + ":" + str(j),
+                            mingly,
+                        )
+
+                    for k in range(1, ssd):  # subsub divs
+                        draw_line(
+                            0,
+                            self.options.dy * (i + (j * ssd + k) / (float(sd) * ssd)),
+                            xmax,
+                            self.options.dy * (i + (j * ssd + k) / (float(sd) * ssd)),
+                            self.options.y_subsubdivs_th,
+                            "SubminorXDiv" + str(i) + ":" + str(j) + ":" + str(k),
+                            mmingly,
+                        )
+
+        return grid
+
+
+if __name__ == "__main__":
+    GridCartesian().run()