Mercurial > gemma

annotate cmd/srsimplify/main.go @ 4325:124a5a7fe8d6

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enchange wms styling * Enable opacity in SLD templates by splitting the corresponding `_fill` value. The place of the change is in the handlers which are specfic to geoserver templates. Adding it there keeps the way how opacity is styled consistent with WFS styles towards the default values in the database and the client.
author Bernhard Reiter <bernhard@intevation.de>
date Wed, 04 Sep 2019 15:30:08 +0200
parents 545304d3ff93
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 // This is Free Software under GNU Affero General Public License v >= 3.0
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2 // without warranty, see README.md and license for details.
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3 //
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4 // SPDX-License-Identifier: AGPL-3.0-or-later
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5 // License-Filename: LICENSES/AGPL-3.0.txt
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6 //
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7 // Copyright (C) 2019 by via donau
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8 // – Österreichische Wasserstraßen-Gesellschaft mbH
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9 // Software engineering by Intevation GmbH
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10 //
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11 // Author(s):
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12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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13
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14 package main
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15
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16 import (
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17 "bufio"
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18 "flag"
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19 "fmt"
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20 "io"
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21 "log"
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22 "os"
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23 "strconv"
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24 "strings"
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25
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26 "gemma.intevation.de/gemma/pkg/octree"
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27 )
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28
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29 func loadXYZ(r io.Reader) (octree.MultiPointZ, error) {
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30
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31 scanner := bufio.NewScanner(r)
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32
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33 points := make(octree.MultiPointZ, 0, 2000000)
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34
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35 var x, y, z float64
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36 var err error
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37
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38 for scanner.Scan() {
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39 line := strings.TrimSpace(scanner.Text())
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40 if len(line) == 0 || strings.HasPrefix(line, "#") {
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41 continue
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42 }
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43 parts := strings.SplitN(line, " ", 3)
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44 if len(parts) != 3 {
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45 continue
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46 }
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47
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48 if x, err = strconv.ParseFloat(parts[0], 64); err != nil {
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49 return nil, err
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50 }
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51 if y, err = strconv.ParseFloat(parts[1], 64); err != nil {
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52 return nil, err
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53 }
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54 if z, err = strconv.ParseFloat(parts[2], 64); err != nil {
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55 return nil, err
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56 }
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57 points = append(points, octree.Vertex{X: x, Y: y, Z: z})
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58 }
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59
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60 return points, nil
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61 }
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62
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63 func storeXYZ(points octree.MultiPointZ, w io.Writer) error {
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64 out := bufio.NewWriter(w)
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65 for i := range points {
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66 fmt.Fprintf(out, "%.5f,%.5f,%.5f\n",
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67 points[i].X, points[i].Y, points[i].Z)
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68 }
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69 return out.Flush()
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70 }
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71
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72 func main() {
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74 var tolerance float64
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76 flag.Float64Var(&tolerance, "t", 0.1, "accepted tolerance (shorthand)")
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77 flag.Float64Var(&tolerance, "tolerance", 0.1, "accepted tolerance")
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78
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79 flag.Parse()
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81 points, err := loadXYZ(os.Stdin)
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82 if err != nil {
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83 log.Fatalf("err: %v\n", err)
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84 }
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85
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86 points = points.Simplify(tolerance)
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87
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88 if err := storeXYZ(points, os.Stdout); err != nil {
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89 log.Fatalf("err: %v\n", err)
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90 }
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91 }