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simplify polygon drawing 

if it's a polygon, it's always a CMAP.
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Motiejus Jakštys 2021-05-19 22:57:48 +03:00 committed by Motiejus Jakštys
parent 913eb30d8b
commit e528ef7dfb
3 changed files with 13 additions and 19 deletions
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6
Makefile
View File

@ -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

22
layer2img.py
View File

@ -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)
@ -65,11 +62,14 @@ def read_layer(select, width):
return geopandas.read_postgis(sql, con=conn, geom_col='way1')
def plot_args(color, maybe_cmap, maybe_linestyle):
if maybe_cmap:
r = {'cmap': CMAP}
else:
r = {'color': color}
def plot_args(geom, color, maybe_linestyle):
if geom is None:
return
if geom.geom_type[0] == 'Polygon':
return {'cmap': CMAP}
r = {'color': color}
if maybe_linestyle == 'invisible':
r['color'] = (0, 0, 0, 0)
elif maybe_linestyle:
@ -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)
c2 = plot_args(ORANGE, args.group2_cmap, args.group2_linestyle)
c3 = plot_args(GREEN, args.group3_cmap, args.group3_linestyle)
c1 = plot_args(group1, BLACK, args.group1_linestyle)
c2 = plot_args(group2, ORANGE, args.group2_linestyle)
c3 = plot_args(group3, GREEN, args.group3_linestyle)
rc('text', usetex=True)
fig, ax = plt.subplots()

4
mj-msc.tex
View File

@ -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.