From ba6679982981a9d5102726e3becd910674e7030f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= <desired.mta@gmail.com>
Date: Mon, 25 May 2020 15:03:00 +0300
Subject: [PATCH] add visvalingam.sql

---
 II/Referatas/Makefile         |  2 +-
 II/Referatas/mj-referatas.tex |  2 +-
 II/Referatas/visvalingam.sql  | 14 ++++++++++++++
 3 files changed, 16 insertions(+), 2 deletions(-)
 create mode 100644 II/Referatas/visvalingam.sql

diff --git a/II/Referatas/Makefile b/II/Referatas/Makefile
index c2216df..0d2e509 100644
--- a/II/Referatas/Makefile
+++ b/II/Referatas/Makefile
@@ -15,7 +15,7 @@ db/.faux_$(1)-$(2): $(1).sql db/.faux_ready
 	touch db/.faux_$(1)-$(2)
 
 $(1)-$(2).pdf: layer2img.py db/.faux_$(1)-$(2)
-	./layer2img.py --table=$(1)_$(2) --size=74x52 --outfile $(1)-$(2).pdf
+	./layer2img.py --table=$(1)_$(2) --size=52x74 --outfile $(1)-$(2).pdf
 endef
 
 $(foreach t,$(TOLERANCES),$(eval $(call algo2img,douglas,$(t))))
diff --git a/II/Referatas/mj-referatas.tex b/II/Referatas/mj-referatas.tex
index 776cd15..c158b38 100644
--- a/II/Referatas/mj-referatas.tex
+++ b/II/Referatas/mj-referatas.tex
@@ -143,7 +143,7 @@ As one can observe in figure~\ref{fig:douglas-300}, the Douglas \& Peucker with
     Douglas \& Peucker                                   &
     Visvalingam-Whyatt                                   \tabularnewline \hline
 
-    \center 0                                                    &
+    Original                                             &
     \multicolumn{2}{ | l | }{
         \includegraphics[width=.84\columnwidth]{douglas-0}
     }                                                    \tabularnewline \hline
diff --git a/II/Referatas/visvalingam.sql b/II/Referatas/visvalingam.sql
new file mode 100644
index 0000000..fb841e8
--- /dev/null
+++ b/II/Referatas/visvalingam.sql
@@ -0,0 +1,14 @@
+DROP TABLE IF EXISTS visvalingam_:tolerance;
+
+CREATE TABLE visvalingam_:tolerance (
+    fid serial NOT NULL,
+    geom geometry(MULTILINESTRING, 3346)
+);
+
+INSERT INTO visvalingam_:tolerance (geom) (
+    SELECT
+        ST_SimplifyVW (ST_LineMerge (ST_Union (geom)),
+            :tolerance * :tolerance) AS geoms
+    FROM
+        zeimena);
+