Mercurial > gemma

annotate pkg/controllers/diff.go @ 2809:216bc6394911

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Optimized longterm waterlevel statistics.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Tue, 26 Mar 2019 12:45:50 +0100
parents 857bb070b9f1
children 2a079d0a71c1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2570
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
1 // This is Free Software under GNU Affero General Public License v >= 3.0
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
2 // without warranty, see README.md and license for details.
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
3 //
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
4 // SPDX-License-Identifier: AGPL-3.0-or-later
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
5 // License-Filename: LICENSES/AGPL-3.0.txt
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
6 //
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
7 // Copyright (C) 2018, 2019 by via donau
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
8 // – Österreichische Wasserstraßen-Gesellschaft mbH
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
9 // Software engineering by Intevation GmbH
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
10 //
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
11 // Author(s):
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
13
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
14 package controllers
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
15
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
16 import (
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
17 "database/sql"
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
18 "fmt"
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
19 "log"
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
20 "net/http"
2574
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
21 "sync"
2570
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
22 "time"
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
23
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
24 "golang.org/x/sync/semaphore"
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
25
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
26 "gemma.intevation.de/gemma/pkg/common"
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
27 "gemma.intevation.de/gemma/pkg/models"
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
28 "gemma.intevation.de/gemma/pkg/octree"
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
29 )
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
30
2580
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
31 const (
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
32 contourTolerance = 0.1
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
33 contourStep = 0.1
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
34 )
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
35
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
36 const (
2580
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
37 diffIDSQL = `
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
38 SELECT sd.id FROM
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
39 caching.sounding_differences sd JOIN
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
40 waterway.sounding_results srm ON sd.minuend = srm.id JOIN
2587
857bb070b9f1 Morphological differences: Bottleneck_id is an integer represented as a string.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2585
diff changeset
41 waterway.sounding_results srs ON sd.subtrahend = srs.id
2580
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
42 WHERE srm.bottleneck_id = srs.bottleneck_id AND
2587
857bb070b9f1 Morphological differences: Bottleneck_id is an integer represented as a string.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2585
diff changeset
43 srm.bottleneck_id = $1 AND
857bb070b9f1 Morphological differences: Bottleneck_id is an integer represented as a string.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2585
diff changeset
44 srm.date_info = $2::date AND
857bb070b9f1 Morphological differences: Bottleneck_id is an integer represented as a string.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2585
diff changeset
45 srs.date_info = $3::date
2580
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
46 `
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
47 insertDiffSQL = `
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
48 WITH soundings AS (
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
49 SELECT sr.id AS id, sr.date_info AS date_info FROM
2587
857bb070b9f1 Morphological differences: Bottleneck_id is an integer represented as a string.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2585
diff changeset
50 waterway.sounding_results sr
857bb070b9f1 Morphological differences: Bottleneck_id is an integer represented as a string.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2585
diff changeset
51 WHERE sr.bottleneck_id = $1
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
52 )
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
53 INSERT INTO caching.sounding_differences (minuend, subtrahend)
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
54 SELECT m.id, s.id FROM soundings m, soundings s
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
55 WHERE m.date_info = $2::date AND s.date_info = $3::date
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
56 RETURNING id
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
57 `
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
58 insertDiffContourSQL = `
2587
857bb070b9f1 Morphological differences: Bottleneck_id is an integer represented as a string.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2585
diff changeset
59 INSERT INTO caching.sounding_differences_contour_lines (
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
60 sounding_differences_id,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
61 height,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
62 lines
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
63 )
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
64 SELECT
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
65 $5,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
66 $4,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
67 ST_Transform(
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
68 ST_Multi(
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
69 ST_CollectionExtract(
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
70 ST_SimplifyPreserveTopology(
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
71 ST_Multi(ST_Collectionextract(
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
72 ST_MakeValid(ST_GeomFromWKB($1, $2::integer)), 2)),
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
73 $3
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
74 ),
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
75 2
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
76 )
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
77 ),
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
78 4326
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
79 )
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
80 `
2580
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
81 )
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
82
2570
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
83 // Only allow three diffence calculation at once.
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
84 // TODO: Make this configurable?
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
85 var diffCalculationSemaphore = semaphore.NewWeighted(int64(3))
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
86
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
87 func diffCalculation(
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
88 input interface{},
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
89 req *http.Request,
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
90 conn *sql.Conn,
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
91 ) (jr JSONResult, err error) {
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
92
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
93 begin := time.Now()
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
94 start := begin
2570
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
95
2584
0c400404a237 Morphological differences: Fixed type assertion for input json.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2583
diff changeset
96 dci := input.(*models.DiffCalculationInput)
2580
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
97
2570
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
98 ctx := req.Context()
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
99
2580
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
100 var id int64
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
101 err = conn.QueryRowContext(
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
102 ctx,
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
103 diffIDSQL,
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
104 dci.Bottleneck,
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
105 dci.Minuend.Time,
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
106 dci.Subtrahend.Time,
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
107 ).Scan(&id)
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
108
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
109 switch {
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
110 case err == sql.ErrNoRows:
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
111 // We need to calculate it.
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
112 case err != nil:
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
113 return
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
114 default:
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
115 // We already have this diff
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
116 jr = JSONResult{
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
117 Result: map[string]int64{"id": id},
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
118 }
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
119 return
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
120 }
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
121
2570
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
122 // DoS counter measure.
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
123 if err = diffCalculationSemaphore.Acquire(ctx, 1); err != nil {
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
124 return
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
125 }
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
126 defer diffCalculationSemaphore.Release(1)
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
127
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
128 minuendTree, err := octree.FromCache(
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
129 ctx, conn,
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
130 dci.Bottleneck, dci.Minuend.Time)
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
131
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
132 log.Printf("info: loading minuend octree took %s\n", time.Since(start))
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
133 if err != nil {
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
134 return
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
135 }
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
136
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
137 if minuendTree == nil {
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
138 err = JSONError{
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
139 Code: http.StatusNotFound,
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
140 Message: fmt.Sprintf("Cannot find survey for %s/%s.",
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
141 dci.Bottleneck,
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
142 dci.Minuend.Format(common.DateFormat)),
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
143 }
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
144 return
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
145 }
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
146
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
147 start = time.Now()
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
148
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
149 subtrahendTree, err := octree.FromCache(
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
150 ctx, conn,
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
151 dci.Bottleneck, dci.Subtrahend.Time)
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
152
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
153 log.Printf("info: loading subtrahend octree took %s\n", time.Since(start))
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
154 if err != nil {
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
155 return
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
156 }
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
157
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
158 if subtrahendTree == nil {
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
159 err = JSONError{
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
160 Code: http.StatusNotFound,
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
161 Message: fmt.Sprintf("Cannot find survey for %s/%s.",
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
162 dci.Bottleneck,
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
163 dci.Subtrahend.Format(common.DateFormat)),
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
164 }
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
165 return
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
166 }
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
167
2572
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
168 // We need a slow path implementation for this.
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
169 if minuendTree.EPSG != subtrahendTree.EPSG {
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
170 err = JSONError{
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
171 Code: http.StatusInternalServerError,
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
172 Message: "Calculating differences between two different " +
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
173 "EPSG code octrees are not supported, yet.",
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
174 }
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
175 return
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
176 }
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
177
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
178 start = time.Now()
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
179 points := minuendTree.Diff(subtrahendTree)
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
180 log.Printf("info: A - B took %v\n", time.Since(start))
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
181
2574
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
182 // The Triangulation and the loading of the clipping
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
183 // polygon can be done concurrently.
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
184
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
185 jobs := make(chan func())
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
186
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
187 wg := new(sync.WaitGroup)
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
188 for i := 0; i < 2; i++ {
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
189 wg.Add(1)
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
190 go func() {
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
191 defer wg.Done()
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
192 for job := range jobs {
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
193 job()
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
194 }
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
195 }()
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
196 }
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
197
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
198 var (
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
199 tri *octree.Triangulation
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
200 triErr error
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
201 clip *octree.Polygon
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
202 clipErr error
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
203 )
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
204
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
205 jobs <- func() {
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
206 start := time.Now()
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
207 tri, triErr = points.Triangulate()
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
208 log.Printf("info: triangulation took %v\n", time.Since(start))
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
209 }
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
210
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
211 jobs <- func() {
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
212 start := time.Now()
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
213 clip, clipErr = octree.LoadClippingPolygon(
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
214 ctx, conn,
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
215 minuendTree.EPSG,
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
216 dci.Bottleneck,
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
217 dci.Minuend.Time,
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
218 dci.Subtrahend.Time)
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
219 log.Printf("info: loading clipping polygon took %v\n", time.Since(start))
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
220 }
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
221 close(jobs)
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
222 wg.Wait()
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
223
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
224 switch {
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
225 case triErr != nil && clipErr != nil:
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
226 err = fmt.Errorf("%v %v", triErr, clipErr)
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
227 return
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
228 case triErr != nil:
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
229 err = triErr
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
230 return
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
231 case clipErr != nil:
2833ff156cb2 Morphological differences: Moved loading of clipping polygon into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2572
diff changeset
232 err = clipErr
2572
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
233 return
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
234 }
7686c7c23506 Morphological differences: Moved some code into octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2570
diff changeset
235
2575
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
236 start = time.Now()
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
237 tin := tri.Tin()
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
238 removed := tin.Clip(clip)
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
239 log.Printf("info: clipping TIN took %v\n", time.Since(start))
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
240
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
241 start = time.Now()
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
242 log.Printf("info: Number of triangles to clip: %d\n", len(removed))
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
243 builder := octree.NewBuilder(tin)
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
244 builder.Build(removed)
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
245 log.Printf("info: building octree took %v\n", time.Since(start))
59e7a011d347 Morphological differences: Moved TIN clipping to octree package and hide the technical details there.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2574
diff changeset
246
2576
647a58ee9ae9 Morphological differences: Centralized generation of height values for differences in octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2575
diff changeset
247 tree := builder.Tree()
647a58ee9ae9 Morphological differences: Centralized generation of height values for differences in octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2575
diff changeset
248
647a58ee9ae9 Morphological differences: Centralized generation of height values for differences in octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2575
diff changeset
249 log.Printf("info: min/max: %f %f\n", tree.Min.Z, tree.Max.Z)
647a58ee9ae9 Morphological differences: Centralized generation of height values for differences in octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2575
diff changeset
250
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
251 heights := octree.SampleDiffHeights(
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
252 tree.Min.Z, tree.Max.Z, contourStep)
2576
647a58ee9ae9 Morphological differences: Centralized generation of height values for differences in octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2575
diff changeset
253 log.Printf("info: num heights: %d\n", len(heights))
647a58ee9ae9 Morphological differences: Centralized generation of height values for differences in octree package.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2575
diff changeset
254
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
255 start = time.Now()
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
256
2580
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
257 // XXX: Maybe we should start this transaction earlier!?
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
258 var tx *sql.Tx
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
259 if tx, err = conn.BeginTx(ctx, nil); err != nil {
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
260 return
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
261 }
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
262 defer tx.Rollback()
5125db802b79 Morphological differences: Check if we already have a diff before we start to calculate it.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2576
diff changeset
263
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
264 var stmt *sql.Stmt
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
265 if stmt, err = tx.PrepareContext(ctx, insertDiffContourSQL); err != nil {
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
266 return
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
267 }
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
268 defer stmt.Close()
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
269
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
270 if err = tx.QueryRowContext(
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
271 ctx,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
272 insertDiffSQL,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
273 dci.Bottleneck,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
274 dci.Minuend.Time,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
275 dci.Subtrahend.Time,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
276 ).Scan(&id); err != nil {
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
277 return
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
278 }
2570
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
279
2583
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
280 octree.DoContours(tree, heights, func(res *octree.ContourResult) {
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
281 if err == nil && len(res.Lines) > 0 {
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
282 _, err = stmt.ExecContext(
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
283 ctx,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
284 res.Lines.AsWKB2D(),
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
285 minuendTree.EPSG,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
286 contourTolerance,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
287 res.Height,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
288 id,
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
289 )
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
290 }
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
291 })
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
292
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
293 log.Printf("info: calculating and storing iso lines took %v\n",
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
294 time.Since(start))
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
295
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
296 if err != nil {
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
297 return
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
298 }
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
299
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
300 if err = tx.Commit(); err != nil {
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
301 log.Printf("info: difference calculation failed after %v\n",
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
302 time.Since(begin))
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
303 return
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
304 }
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
305 log.Printf("info: difference calculation succeed after %v\n",
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
306 time.Since(begin))
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
307
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
308 jr = JSONResult{
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
309 Result: map[string]int64{"id": id},
5c6a7e69b02d Morphological differences: Store calculated iso-lines in database.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 2580
diff changeset
310 }
2570
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
311 return
c4242b9d59fe Morphological differences: Added endpoint stub POST /api/diff
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
diff changeset
312 }