simplify polygon drawing

if it's a polygon, it's always a CMAP.

Makefile

@@ -73,7 +73,6 @@ $(1).pdf: layer2img.py Makefile $(2)
 	python ./layer2img.py --outfile=$(1).pdf \
 		$$(if $$($(1)_WIDTHDIV),--widthdiv=$$($(1)_WIDTHDIV)) \
 		$$(foreach i,1 2 3, \
-			$$(if $$($(1)_$$(i)CMAP),--group$$(i)-cmap="$$($(1)_$$(i)CMAP)") \
 			$$(if $$($(1)_$$(i)SELECT),--group$$(i)-select="$$($(1)_$$(i)SELECT)") \
 			$$(if $$($(1)_$$(i)LINESTYLE),--group$$(i)-linestyle="$$($(1)_$$(i)LINESTYLE)") \
 	)
@@ -84,26 +83,21 @@ $(foreach fig,$(RIVERS), $(eval $(call FIG_template,$(fig),.faux_test-rivers)))
 test-figures_1SELECT = wm_figures
 
 fig8-definition-of-a-bend_1SELECT = wm_debug where name='fig8' AND stage='bbends' AND gen=1
-fig8-definition-of-a-bend_2CMAP = 1
 fig8-definition-of-a-bend_2SELECT = wm_debug where name='fig8' AND stage='bbends-polygon' AND gen=1
 
 fig5-gentle-inflection-before_WITHDIV = 2
 fig5-gentle-inflection-before_1SELECT = wm_debug where name='fig5' AND stage='bbends' AND gen=1
-fig5-gentle-inflection-before_2CMAP = 1
 fig5-gentle-inflection-before_2SELECT = wm_debug where name='fig5' AND stage='bbends-polygon' AND gen=1
 fig5-gentle-inflection-after_WITHDIV = 2
 fig5-gentle-inflection-after_1SELECT = wm_debug where name='fig5' AND stage='cinflections' AND gen=1
 fig5-gentle-inflection-after_2SELECT = wm_debug where name='fig5' AND stage='cinflections-polygon' AND gen=1
-fig5-gentle-inflection-after_2CMAP = 1
 
 inflection-1-gentle-inflection-before_WIDTHDIV = 2
 inflection-1-gentle-inflection-before_1SELECT = wm_debug where name='inflection-1' AND stage='bbends' AND gen=1
 inflection-1-gentle-inflection-before_2SELECT = wm_debug where name='inflection-1' AND stage='bbends-polygon' AND gen=1
-inflection-1-gentle-inflection-before_2CMAP = 1
 inflection-1-gentle-inflection-after_WIDTHDIV = 2
 inflection-1-gentle-inflection-after_1SELECT = wm_debug where name='inflection-1' AND stage='cinflections' AND gen=1
 inflection-1-gentle-inflection-after_2SELECT = wm_debug where name='inflection-1' AND stage='cinflections-polygon' AND gen=1
-inflection-1-gentle-inflection-after_2CMAP = 1
 
 fig6-selfcrossing-before_WIDTHDIV = 2
 fig6-selfcrossing-before_1SELECT = wm_debug where name='fig6' AND stage='bbends' AND gen=1

layer2img.py

@@ -25,7 +25,6 @@ def parse_args():
     parser = argparse.ArgumentParser(
             description='Convert a geometry to an image')
     parser.add_argument('--group1-select', required=True)
-    parser.add_argument('--group1-cmap', type=bool)
     parser.add_argument('--group1-linestyle')
 
     simplify = parser.add_mutually_exclusive_group()
@@ -34,7 +33,6 @@ def parse_args():
     parser.add_argument('--group1-chaikin', type=bool)
 
     parser.add_argument('--group2-select')
-    parser.add_argument('--group2-cmap', type=bool)
     parser.add_argument('--group2-linestyle')
     simplify = parser.add_mutually_exclusive_group()
     simplify.add_argument('--group2-simplifydp', type=int)
@@ -42,7 +40,6 @@ def parse_args():
     parser.add_argument('--group2-chaikin', type=bool)
 
     parser.add_argument('--group3-select')
-    parser.add_argument('--group3-cmap', type=bool)
     parser.add_argument('--group3-linestyle')
     simplify = parser.add_mutually_exclusive_group()
     simplify.add_argument('--group3-simplifydp', type=int)
@@ -65,10 +62,13 @@ def read_layer(select, width):
     return geopandas.read_postgis(sql, con=conn, geom_col='way1')
 
 
-def plot_args(color, maybe_cmap, maybe_linestyle):
+def plot_args(geom, color, maybe_linestyle):
-    if maybe_cmap:
+    if geom is None:
-        r = {'cmap': CMAP}
+        return
-    else:
+
+    if geom.geom_type[0] == 'Polygon':
+        return {'cmap': CMAP}
+
     r = {'color': color}
     if maybe_linestyle == 'invisible':
         r['color'] = (0, 0, 0, 0)
@@ -83,9 +83,9 @@ def main():
     group1 = read_layer(args.group1_select, width)
     group2 = read_layer(args.group2_select, width)
     group3 = read_layer(args.group3_select, width)
-    c1 = plot_args(BLACK, args.group1_cmap, args.group1_linestyle)
+    c1 = plot_args(group1, BLACK, args.group1_linestyle)
-    c2 = plot_args(ORANGE, args.group2_cmap, args.group2_linestyle)
+    c2 = plot_args(group2, ORANGE, args.group2_linestyle)
-    c3 = plot_args(GREEN, args.group3_cmap, args.group3_linestyle)
+    c3 = plot_args(group3, GREEN, args.group3_linestyle)
 
     rc('text', usetex=True)
     fig, ax = plt.subplots()

mj-msc.tex

@@ -38,7 +38,7 @@
 \usepackage{layouts}
 
 \newcommand{\onpage}[1]{\ref{#1} on page~\pageref{#1}}
-\newcommand{\titlecite}[1]{\citetitle{#1} \cite{#1}}
+\newcommand{\titlecite}[1]{\citetitle{#1}\cite{#1}}
 \newcommand{\DP}{Douglas \& Peucker}
 \newcommand{\VW}{Visvalingam--Whyatt}
 \newcommand{\WM}{Wang--M{\"u}ller}
@@ -75,7 +75,7 @@
 \label{sec:abstract}
 Current open-source line generalization solutions have their roots in
     mathematics and geometry, and are not fit for natural objects like rivers
-    and coastlines. This paper discusses our implementation of {\WM} algorithm
+    and coastlines. This paper discusses our implementation of {\WM}'s algorithm
     under and open-source license, explains things that we would had
     appreciated in the original paper and compares our results to different
     generalization algorithms.