gemma: pkg/octree/tin.go annotate

annotate pkg/octree/tin.go @ 2478:930ca9c4e2a7 octree-diff

Fixed concurrent octree builder. The iso line cuts are now in the same quantity order of line segments but still differ. Need to have a closer look once we serve the data.

author	Sascha L. Teichmann <sascha.teichmann@intevation.de>
date	Thu, 28 Feb 2019 12:34:47 +0100
parents	63475c8e710e
children	45d51a49f191

rev	line source
1017 a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	1 // This is Free Software under GNU Affero General Public License v >= 3.0
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	2 // without warranty, see README.md and license for details.
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	3 //
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	4 // SPDX-License-Identifier: AGPL-3.0-or-later
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	5 // License-Filename: LICENSES/AGPL-3.0.txt
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	6 //
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	7 // Copyright (C) 2018 by via donau
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	8 // – Österreichische Wasserstraßen-Gesellschaft mbH
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	9 // Software engineering by Intevation GmbH
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	10 //
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	11 // Author(s):
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	12 // * Sascha L. Teichmann <sascha.teichmann@intevation.de>
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 971 diff changeset	13
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	14 package octree
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	15
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	16 import (
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	17 "bytes"
971 f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	18 "context"
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	19 "database/sql"
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	20 "encoding/binary"
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	21 "errors"
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	22 "fmt"
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	23 "io"
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	24 "log"
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	25 "math"
1373 84e78d2e2d95 Backend: Centralized the definition of WGS84 constant in the models package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1328 diff changeset	26
84e78d2e2d95 Backend: Centralized the definition of WGS84 constant in the models package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1328 diff changeset	27 "gemma.intevation.de/gemma/pkg/models"
2471 63475c8e710e Moved WKB constants to own package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1692 diff changeset	28 "gemma.intevation.de/gemma/pkg/wkb"
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	29 )
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	30
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	31 var (
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	32 errNoByteSlice = errors.New("Not a byte slice")
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	33 errTooLessPoints = errors.New("Too less points")
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	34 )
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	35
1692 f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	36 // Tin stores a mesh of triangles with common vertices.
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	37 type Tin struct {
1692 f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	38 // EPSG holds the projection.
f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	39 EPSG uint32
f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	40 // Vertices are the shared vertices.
f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	41 Vertices []Vertex
f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	42 // Triangles are the triangles.
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	43 Triangles [][]int32
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	44
1692 f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	45 // Min is the lower left corner of the bbox.
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	46 Min Vertex
1692 f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	47 // Max is the upper right corner of the bbox.
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	48 Max Vertex
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	49 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	50
1692 f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	51 // FromWKB constructs the TIN from a WKB representation.
f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	52 // Shared vertices are identified and referenced by the
f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	53 // same index.
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	54 func (t *Tin) FromWKB(data []byte) error {
1691 de09bd3b5c05 Octree: Fixed a few golint quirks and normalized logging a bit. Sascha L. Teichmann <teichmann@intevation.de> parents: 1373 diff changeset	55 log.Printf("info: data length %d\n", len(data))
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	56
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	57 r := bytes.NewReader(data)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	58
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	59 endian, err := r.ReadByte()
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	60
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	61 var order binary.ByteOrder
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	62
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	63 switch {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	64 case err != nil:
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	65 return err
2471 63475c8e710e Moved WKB constants to own package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1692 diff changeset	66 case endian == wkb.NDR:
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	67 order = binary.LittleEndian
2471 63475c8e710e Moved WKB constants to own package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1692 diff changeset	68 case endian == wkb.XDR:
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	69 order = binary.BigEndian
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	70 default:
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	71 return fmt.Errorf("unknown byte order %x", endian)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	72 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	73
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	74 var geomType uint32
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	75 err = binary.Read(r, order, &geomType)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	76
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	77 switch {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	78 case err != nil:
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	79 return err
2471 63475c8e710e Moved WKB constants to own package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1692 diff changeset	80 case geomType != wkb.TinZ:
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	81 return fmt.Errorf("unknown geometry type %x", geomType)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	82 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	83
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	84 var num uint32
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	85 if err = binary.Read(r, order, &num); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	86 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	87 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	88
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	89 vertices := make([]Vertex, 0, 100000)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	90
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	91 var v Vertex
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	92
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	93 v2i := make(map[Vertex]int32, 100000)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	94
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	95 var indexPool []int32
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	96
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	97 allocIndices := func() []int32 {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	98 if len(indexPool) == 0 {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	99 indexPool = make([]int32, 381024)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	100 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	101 ids := indexPool[:3]
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	102 indexPool = indexPool[3:]
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	103 return ids
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	104 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	105
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	106 var triangles [][]int32
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	107
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	108 min := Vertex{math.MaxFloat64, math.MaxFloat64, math.MaxFloat64}
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	109 max := Vertex{-math.MaxFloat64, -math.MaxFloat64, -math.MaxFloat64}
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	110
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	111 for i := uint32(0); i < num; i++ {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	112
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	113 endian, err = r.ReadByte()
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	114 switch {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	115 case err != nil:
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	116 return err
2471 63475c8e710e Moved WKB constants to own package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1692 diff changeset	117 case endian == wkb.NDR:
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	118 order = binary.LittleEndian
2471 63475c8e710e Moved WKB constants to own package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1692 diff changeset	119 case endian == wkb.XDR:
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	120 order = binary.BigEndian
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	121 default:
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	122 return fmt.Errorf("unknown byte order %x", endian)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	123 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	124
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	125 err = binary.Read(r, order, &geomType)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	126 switch {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	127 case err != nil:
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	128 return err
2471 63475c8e710e Moved WKB constants to own package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1692 diff changeset	129 case geomType != wkb.TriangleZ:
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	130 return fmt.Errorf("unknown geometry type %d", geomType)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	131 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	132
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	133 var rings uint32
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	134 if err = binary.Read(r, order, &rings); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	135 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	136 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	137 triangle := allocIndices()
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	138
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	139 for ring := uint32(0); ring < rings; ring++ {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	140 var npoints uint32
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	141 if err = binary.Read(r, order, &npoints); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	142 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	143 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	144
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	145 if npoints < 3 {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	146 return errTooLessPoints
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	147 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	148
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	149 for p := uint32(0); p < npoints; p++ {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	150 var x, y, z uint64
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	151 for _, addr := range []*uint64{&x, &y, &z} {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	152 if err = binary.Read(r, order, addr); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	153 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	154 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	155 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	156 if p >= 3 \|\| ring >= 1 {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	157 // Don't store the forth point.
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	158 continue
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	159 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	160 // Do this conversion later to spare reflect calls
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	161 // and allocs in binary.Read.
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	162 v.X = math.Float64frombits(x)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	163 v.Y = math.Float64frombits(y)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	164 v.Z = math.Float64frombits(z)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	165 idx, found := v2i[v]
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	166 if !found {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	167 idx = int32(len(vertices))
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	168 v2i[v] = idx
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	169 vertices = append(vertices, v)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	170 min.Minimize(v)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	171 max.Maximize(v)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	172 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	173 triangle[p] = idx
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	174 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	175 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	176 triangles = append(triangles, triangle)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	177 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	178
1691 de09bd3b5c05 Octree: Fixed a few golint quirks and normalized logging a bit. Sascha L. Teichmann <teichmann@intevation.de> parents: 1373 diff changeset	179 log.Printf("info: bbox: [[%f, %f], [%f, %f]]\n",
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	180 min.X, min.Y, max.X, max.Y)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	181
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	182 *t = Tin{
1373 84e78d2e2d95 Backend: Centralized the definition of WGS84 constant in the models package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1328 diff changeset	183 EPSG: models.WGS84,
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	184 Vertices: vertices,
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	185 Triangles: triangles,
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	186 Min: min,
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	187 Max: max,
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	188 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	189
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	190 return nil
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	191 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	192
971 f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	193 const (
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	194 tinSQLPrefix = `WITH trans AS (
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	195 SELECT
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	196 ST_Buffer(ST_Transform(area::geometry, $1::int), 0.001) AS area,
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	197 ST_Transform(point_cloud::geometry, $1::int) AS point_cloud
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	198 FROM waterway.sounding_results
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	199 `
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	200 tinSQLSuffix = `
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	201 ),
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	202 triangles AS (
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	203 SELECT t.geom AS geom, ST_MakePolygon(ST_ExteriorRing(t.geom)) AS poly FROM (
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	204 SELECT (ST_Dump(
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	205 ST_DelaunayTriangles(point_cloud, 0, 2))).geom
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	206 FROM trans) t
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	207 )
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	208 SELECT ST_AsBinary(ST_Collect(triangles.geom)) FROM triangles, trans
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	209 WHERE ST_Covers(trans.area, triangles.poly)`
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	210
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	211 loadTinByIDSQL = tinSQLPrefix + `WHERE id = $2` + tinSQLSuffix
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	212 )
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	213
1692 f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	214 // GenerateTinByID generated a TIN by triangulating a point cloud
f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	215 // from the database.
1328 d753ce6cf588 To make golint happier made context.Context to be the first argument in all calls. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1017 diff changeset	216 func GenerateTinByID(
971 f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	217 ctx context.Context,
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	218 conn *sql.Conn,
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	219 id int64,
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	220 epsg uint32,
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	221 ) (*Tin, error) {
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	222 var tin Tin
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	223 err := conn.QueryRowContext(ctx, loadTinByIDSQL, epsg, id).Scan(&tin)
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	224 switch {
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	225 case err == sql.ErrNoRows:
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	226 return nil, nil
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	227 case err != nil:
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	228 return nil, err
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	229 }
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	230 tin.EPSG = epsg
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	231 return &tin, nil
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	232 }
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	233
1692 f4dcbe8941a1 Octree: Resolved the remaing golint issues with this package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 1691 diff changeset	234 // Scan implements the sql.Scanner interface.
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	235 func (t *Tin) Scan(raw interface{}) error {
971 f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	236 if raw == nil {
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	237 return nil
f9fb6c399f3f Moved generating of tins to octree package. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 968 diff changeset	238 }
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	239 data, ok := raw.([]byte)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	240 if !ok {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	241 return errNoByteSlice
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	242 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	243 return t.FromWKB(data)
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	244 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	245
1691 de09bd3b5c05 Octree: Fixed a few golint quirks and normalized logging a bit. Sascha L. Teichmann <teichmann@intevation.de> parents: 1373 diff changeset	246 func (t *Tin) serialize(w io.Writer) error {
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	247
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	248 if err := binary.Write(w, binary.LittleEndian, t.EPSG); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	249 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	250 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	251
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	252 if err := t.Min.Write(w); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	253 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	254 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	255 if err := t.Max.Write(w); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	256 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	257 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	258
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	259 if err := binary.Write(
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	260 w, binary.LittleEndian, uint32(len(t.Vertices))); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	261 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	262 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	263
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	264 for _, v := range t.Vertices {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	265 if err := v.Write(w); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	266 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	267 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	268 }
1691 de09bd3b5c05 Octree: Fixed a few golint quirks and normalized logging a bit. Sascha L. Teichmann <teichmann@intevation.de> parents: 1373 diff changeset	269 log.Printf("info: vertices %d (%d)\n", len(t.Vertices), len(t.Vertices)38)
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	270
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	271 if err := binary.Write(
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	272 w, binary.LittleEndian, uint32(len(t.Triangles))); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	273 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	274 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	275
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	276 var buf [binary.MaxVarintLen32]byte
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	277 var written int
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	278 var last int32
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	279 for _, triangle := range t.Triangles {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	280 for _, idx := range triangle {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	281 value := idx - last
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	282 n := binary.PutVarint(buf[:], int64(value))
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	283 for p := buf[:n]; len(p) > 0; p = p[n:] {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	284 var err error
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	285 if n, err = w.Write(p); err != nil {
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	286 return err
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	287 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	288 written += n
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	289 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	290 last = idx
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	291 }
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	292 }
1691 de09bd3b5c05 Octree: Fixed a few golint quirks and normalized logging a bit. Sascha L. Teichmann <teichmann@intevation.de> parents: 1373 diff changeset	293 log.Printf("info: compressed tin indices in bytes: %d (%d)\n",
968 a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	294 written, 34len(t.Triangles))
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	295
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	296 return nil
a4fe07a21ba7 Moved octree builder into octree package to be reusable by the sounding result import job. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	297 }

Mercurial > gemma

annotate pkg/octree/tin.go @ 2478:930ca9c4e2a7 octree-diff