gemma: pkg/mesh/meshserialize.go annotate

annotate pkg/mesh/meshserialize.go @ 5710:37c8feeecb4d

Merged branch sr-v2 into default.

author	Sascha L. Teichmann <sascha.teichmann@intevation.de>
date	Tue, 20 Feb 2024 21:28:56 +0100
parents	ef80748ae4f3
children	1ea1d3ef2258

rev	line source
1017 a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 729 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: 729 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: 729 diff changeset	3 //
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 729 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: 729 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: 729 diff changeset	6 //
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 729 diff changeset	7 // Copyright (C) 2018 by via donau
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 729 diff changeset	8 // – Österreichische Wasserstraßen-Gesellschaft mbH
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 729 diff changeset	9 // Software engineering by Intevation GmbH
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 729 diff changeset	10 //
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 729 diff changeset	11 // Author(s):
a244b18cb916 Added GNU Affero General Public License. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 729 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: 729 diff changeset	13
4827 f4abfd0ee8ad Renamed octree package to mesh as there is no octree any more. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 4824 diff changeset	14 package mesh
674 120a82bd9953 octree: Added loading frame for contour generation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	15
120a82bd9953 octree: Added loading frame for contour generation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	16 import (
120a82bd9953 octree: Added loading frame for contour generation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	17 "bufio"
727 41c8dc61f38f Moved octree loading stuff to octree package. Sascha L. Teichmann <teichmann@intevation.de> parents: 726 diff changeset	18 "bytes"
4656 a2f16987911b Removed lz4 from loader, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 4650 diff changeset	19 "compress/gzip"
674 120a82bd9953 octree: Added loading frame for contour generation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	20 "encoding/binary"
5674 e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	21 "fmt"
5678 4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	22 "io"
5691 9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	23
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	24 "gemma.intevation.de/gemma/pkg/log"
674 120a82bd9953 octree: Added loading frame for contour generation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	25 )
120a82bd9953 octree: Added loading frame for contour generation. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: diff changeset	26
5695 ef80748ae4f3 Finish deserializing v2 of the mesh index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5692 diff changeset	27 // Version is current version of the format the mesh index is stored in.
ef80748ae4f3 Finish deserializing v2 of the mesh index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5692 diff changeset	28 const Version = 2
5678 4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	29
5695 ef80748ae4f3 Finish deserializing v2 of the mesh index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5692 diff changeset	30 // magicHeader is a magic header to tell if the data blob is a mesh index.
5674 e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	31 const magicHeader = "SR3D"
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	32
5695 ef80748ae4f3 Finish deserializing v2 of the mesh index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5692 diff changeset	33 // coalesceVersion returns the most recent version if version is less or equal zero.
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	34 func coalesceVersion(version int) int {
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	35 if version > 0 {
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	36 return version
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	37 }
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	38 return Version
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	39 }
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	40
5695 ef80748ae4f3 Finish deserializing v2 of the mesh index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5692 diff changeset	41 // OptimizeForSerialization apply version specific storage optimizations
ef80748ae4f3 Finish deserializing v2 of the mesh index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5692 diff changeset	42 // before serialization.
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	43 func (s *STRTree) OptimizeForSerialization(version int) {
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	44 version = coalesceVersion(version)
5680 a87900c0fd11 Remove triangles that are not registered in the spatial index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5679 diff changeset	45 if version == 2 {
a87900c0fd11 Remove triangles that are not registered in the spatial index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5679 diff changeset	46 s.optimizeForSerializationV2()
a87900c0fd11 Remove triangles that are not registered in the spatial index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5679 diff changeset	47 }
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	48 }
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	49
5676 d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	50 // Bytes serializes this tree to a byte slice.
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	51 func (s *STRTree) Bytes(version int) ([]byte, int, error) {
5676 d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	52 var buf bytes.Buffer
d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	53 w, err := gzip.NewWriterLevel(&buf, gzip.BestSpeed)
d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	54 if err != nil {
5678 4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	55 return nil, 0, err
4650 f5fce22184da Added a deserializer from STRTrees. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 2465 diff changeset	56 }
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	57 version = coalesceVersion(version)
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	58 if err := s.serializeVn(w, version); err != nil {
5678 4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	59 return nil, 0, err
5676 d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	60 }
d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	61 if err := w.Close(); err != nil {
5678 4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	62 return nil, 0, err
5676 d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	63 }
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	64 return buf.Bytes(), version, nil
5678 4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	65 }
4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	66
4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	67 func (s *STRTree) serializeVn(w io.Writer, version int) error {
5686 c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	68 switch version {
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	69 case 1:
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	70 return s.serializeV1(w)
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	71 case 2:
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	72 return s.serializeV2(w)
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	73 default:
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	74 return fmt.Errorf("cannot serialize mesh version %d", version)
5678 4abbb62d2bed Write mesh version to database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5677 diff changeset	75 }
4650 f5fce22184da Added a deserializer from STRTrees. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 2465 diff changeset	76 }
f5fce22184da Added a deserializer from STRTrees. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 2465 diff changeset	77
5676 d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	78 // FromBytes restores a STRTree from a binary representation.
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	79 func (s *STRTree) FromBytes(data []byte, version int) error {
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	80 version = coalesceVersion(version)
5676 d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	81 r, err := gzip.NewReader(bytes.NewReader(data))
d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	82 if err != nil {
4650 f5fce22184da Added a deserializer from STRTrees. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 2465 diff changeset	83 return err
f5fce22184da Added a deserializer from STRTrees. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 2465 diff changeset	84 }
5676 d56e043bbbca More code moving. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5674 diff changeset	85 return s.deserialize(bufio.NewReader(r), version)
4650 f5fce22184da Added a deserializer from STRTrees. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 2465 diff changeset	86 }
f5fce22184da Added a deserializer from STRTrees. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 2465 diff changeset	87
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	88 func (s STRTree) deserialize(r bufio.Reader, version int) error {
5674 e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	89 header, err := r.Peek(8)
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	90 if err != nil {
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	91 return err
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	92 }
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	93 if bytes.HasPrefix(header, []byte(magicHeader)) {
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	94 realVersion := int(binary.LittleEndian.Uint32(header[4:]))
03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	95 if realVersion != version {
5686 c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	96 return fmt.Errorf("mesh version mismatch: Have %d expect %d",
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	97 realVersion, version)
5674 e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	98 }
5687 8ff842858434 More stubs for serializing v2. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5686 diff changeset	99 // Skip the header
8ff842858434 More stubs for serializing v2. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5686 diff changeset	100 if _, err := r.Discard(8); err != nil {
8ff842858434 More stubs for serializing v2. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5686 diff changeset	101 return err
8ff842858434 More stubs for serializing v2. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5686 diff changeset	102 }
5674 e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	103 return s.deserializeVn(r, realVersion)
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	104 }
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	105 return s.deserializeV1(r)
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	106 }
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	107
5679 03dfbe675842 Simplified version handling. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5678 diff changeset	108 func (s STRTree) deserializeVn(r bufio.Reader, version int) error {
5686 c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	109 switch version {
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	110 case 1:
5674 e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	111 return s.deserializeV1(r)
5686 c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	112 case 2:
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	113 return s.deserializeV2(r)
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	114 default:
c33a5354328d Add stubs for de/serialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5680 diff changeset	115 return fmt.Errorf("cannot deserialize mesh version %d", version)
5674 e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	116 }
e54635c20d43 Load version fom database. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5601 diff changeset	117 }
5690 da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	118
5692 d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	119 // serializer is a generic function to apply a chain of
5695 ef80748ae4f3 Finish deserializing v2 of the mesh index. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5692 diff changeset	120 // serializer/deserializer functions to an object given a reader or writer.
5692 d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	121 func serializer[T, S any](
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	122 s S,
5691 9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	123 t T,
5692 d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	124 fns ...func(T, S) error,
5691 9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	125 ) error {
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	126 for _, fn := range fns {
5692 d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	127 if err := fn(t, s); err != nil {
5691 9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	128 return err
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	129 }
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	130 }
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	131 return nil
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	132 }
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	133
5690 da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	134 func (s *STRTree) serializeEntries(w io.Writer) error {
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	135 return binary.Write(w, binary.LittleEndian, uint8(s.Entries))
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	136 }
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	137
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	138 func (s STRTree) deserializeEntries(r bufio.Reader) error {
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	139 var numEntries uint8
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	140 if err := binary.Read(r, binary.LittleEndian, &numEntries); err != nil {
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	141 return err
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	142 }
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	143 s.Entries = int(numEntries)
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	144 return nil
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	145 }
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	146
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	147 func (t *Tin) serializeExtent(w io.Writer) error {
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	148 if err := t.Min.Write(w); err != nil {
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	149 return err
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	150 }
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	151 return t.Max.Write(w)
da9720b4aa42 More stubs and refactoring to deserialize v2 meshes. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5687 diff changeset	152 }
5691 9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	153
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	154 func (t Tin) deserializeExtent(r bufio.Reader) error {
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	155 if err := t.Min.Read(r); err != nil {
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	156 return err
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	157 }
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	158 if err := t.Max.Read(r); err != nil {
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	159 return err
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	160 }
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	161 log.Infof("BBOX: [[%f, %f, %f], [%f, %f, %f]]\n",
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	162 t.Min.X, t.Min.Y, t.Min.Z,
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	163 t.Max.X, t.Max.Y, t.Max.Z)
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	164 return nil
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	165 }
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	166
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	167 func (t *Tin) serializeEPSG(w io.Writer) error {
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	168 return binary.Write(w, binary.LittleEndian, t.EPSG)
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	169 }
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	170
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	171 func (t Tin) deserializeEPSG(r bufio.Reader) error {
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	172 if err := binary.Read(r, binary.LittleEndian, &t.EPSG); err != nil {
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	173 return err
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	174 }
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	175 log.Infof("EPSG: %d\n", t.EPSG)
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	176 return nil
9d2e74225104 Some refactoring to clean up deserialization. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5690 diff changeset	177 }
5692 d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	178
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	179 func serializeHeader() func(*STRTree, io.Writer) error {
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	180 return func(_ *STRTree, w io.Writer) error {
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	181 _, err := w.Write([]byte(magicHeader))
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	182 return err
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	183 }
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	184 }
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	185
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	186 func serializeVersion(version int) func(*STRTree, io.Writer) error {
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	187 return func(_ *STRTree, w io.Writer) error {
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	188 return binary.Write(w, binary.LittleEndian, uint32(version))
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	189 }
d920f0fa2f04 User generic serializer for serialization, too. Sascha L. Teichmann <sascha.teichmann@intevation.de> parents: 5691 diff changeset	190 }

Mercurial > gemma

annotate pkg/mesh/meshserialize.go @ 5710:37c8feeecb4d