https://github.com/minorua/Qgis2threejs
Tip revision: aad03941f08af75640383838ff0cdf61abeb9c90 authored by Minoru Akagi on 24 June 2020, 01:28:58 UTC
version 2.5
version 2.5
Tip revision: aad0394
qgis2threejstools.py
# -*- coding: utf-8 -*-
"""
/***************************************************************************
Qgis2threejs
A QGIS plugin
export terrain data, map canvas image and vector data to web browser
-------------------
begin : 2013-12-29
copyright : (C) 2013 Minoru Akagi
email : akaginch@gmail.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
import os
import base64
import configparser
import re
import shutil
from PyQt5.QtCore import qDebug, QProcess, QSettings, QUrl, QBuffer, QByteArray, QIODevice, QFile, QDir, QFileInfo
from PyQt5.QtGui import QDesktopServices
from qgis.core import NULL, Qgis, QgsMapLayer, QgsMessageLog, QgsProject
from .conf import DEBUG_MODE
def getLayersInProject():
layers = []
for tl in QgsProject.instance().layerTreeRoot().findLayers():
if tl.layer():
layers.append(tl.layer())
return layers
def getDEMLayersInProject():
layers = []
for layer in getLayersInProject():
if layer.type() == QgsMapLayer.RasterLayer:
if layer.providerType() == "gdal" and layer.bandCount() == 1:
layers.append(layer)
return layers
def getLayersByLayerIds(layerIds):
layers = []
for id in layerIds:
layer = QgsProject.instance().mapLayer(id)
if layer:
layers.append(layer)
return layers
def js_bool(o):
return "true" if o else "false"
def pyobj2js(obj, escape=False, quoteHex=True):
if isinstance(obj, dict):
items = ["{0}:{1}".format(k, pyobj2js(v, escape, quoteHex)) for k, v in obj.items()]
return "{" + ",".join(items) + "}"
elif isinstance(obj, list):
items = [str(pyobj2js(v, escape, quoteHex)) for v in obj]
return "[" + ",".join(items) + "]"
elif isinstance(obj, bool):
return "true" if obj else "false"
elif isinstance(obj, str):
if escape:
return '"' + obj.replace("\\", "\\\\").replace('"', '\\"') + '"'
if not quoteHex and re.match("0x[0-9A-Fa-f]+$", obj):
return obj
return '"' + obj + '"'
elif isinstance(obj, bytes):
return pyobj2js(obj.decode("UTF-8"), escape, quoteHex)
elif isinstance(obj, (int, float)):
return obj
elif obj == NULL: # qgis.core.NULL
return "null"
return '"' + str(obj) + '"'
def abchex(number):
h = ""
for c in "{:x}".format(number):
i = ord(c)
if i >= 97: # a - f => k - p
h += chr(i + 10)
else: # 0 - 9 => a - j
h += chr(i + 49)
return h
def logMessage(message, warning=True):
QgsMessageLog.logMessage(str(message), "Qgis2threejs", Qgis.Warning if warning else Qgis.Info, warning)
def shortTextFromSelectedLayerIds(layerIds):
count = len(layerIds)
return "{0} layer{1} selected".format(count, "s" if count > 1 else "")
#
if count == 0:
return "0 layer"
layer = QgsProject.instance().mapLayer(layerIds[0])
if layer is None:
return "Layer not found"
text = '"{0}"'.format(layer.name())
if count > 1:
text += " and {0} layer".format(count - 1)
if count > 2:
text += "s"
return text
def openUrl(url):
"""url: QUrl object"""
if url.fileName().endswith((".html", ".htm")):
settings = QSettings()
browserPath = settings.value("/Qgis2threejs/browser", "", type=str)
if browserPath:
if QProcess.startDetached(browserPath, [url.toString()]):
return
else:
logMessage("Incorrect web browser path. Open URL using default web browser.", True)
QDesktopServices.openUrl(url)
def openDirectory(dir_path):
QDesktopServices.openUrl(QUrl.fromLocalFile(dir_path))
def base64image(image):
ba = QByteArray()
buffer = QBuffer(ba)
buffer.open(QIODevice.WriteOnly)
image.save(buffer, "PNG")
return "data:image/png;base64," + ba.toBase64().data().decode("ascii")
def base64file(file_path):
try:
with open(file_path, "rb") as f:
return base64.b64encode(f.read()).decode("ascii")
except:
logMessage("Cannot read file: {}".format(file_path))
return None
def getTemplateConfig(template_path):
abspath = os.path.join(templateDir(), template_path)
meta_path = os.path.splitext(abspath)[0] + ".txt"
if not os.path.exists(meta_path):
return {}
parser = configparser.ConfigParser()
parser.read(meta_path)
config = {"path": abspath}
for item in parser.items("general"):
config[item[0]] = item[1]
if DEBUG_MODE:
qDebug("config: " + str(config))
return config
def copyFile(source, dest, overwrite=False):
if os.path.exists(dest):
if overwrite or abs(QFileInfo(source).lastModified().secsTo(QFileInfo(dest).lastModified())) > 5: # use secsTo for different file systems
if DEBUG_MODE:
qDebug("Existing file removed: %s (%s, %s)" % (dest, str(QFileInfo(source).lastModified()), str(QFileInfo(dest).lastModified())))
QFile.remove(dest)
else:
if DEBUG_MODE:
qDebug("File already exists: %s" % dest)
return False
ret = QFile.copy(source, dest)
if DEBUG_MODE:
if ret:
qDebug("File copied: %s to %s" % (source, dest))
else:
qDebug("Failed to copy file: %s to %s" % (source, dest))
return ret
def copyDir(source, dest, overwrite=False):
if os.path.exists(dest):
if overwrite:
if DEBUG_MODE:
qDebug("Existing dir removed: %s" % dest)
shutil.rmtree(dest)
else:
if DEBUG_MODE:
qDebug("Dir already exists: %s" % dest)
return False
shutil.copytree(source, dest)
if DEBUG_MODE:
qDebug("Dir copied: %s to %s" % (source, dest))
return True
def copyFiles(filesToCopy, out_dir):
plugin_dir = pluginDir()
for item in filesToCopy:
dest_dir = os.path.join(out_dir, item.get("dest", ""))
subdirs = item.get("subdirs", False)
overwrite = item.get("overwrite", False)
if DEBUG_MODE:
qDebug(str(item))
qDebug("dest dir: %s" % dest_dir)
# make destination directory
QDir().mkpath(dest_dir)
# copy files
for f in item.get("files", []):
fi = QFileInfo(f)
dest = os.path.join(dest_dir, fi.fileName())
if fi.isRelative():
copyFile(os.path.join(plugin_dir, f), dest, overwrite)
else:
copyFile(f, dest, overwrite)
# copy directories
for d in item.get("dirs", []):
fi = QFileInfo(d)
source = os.path.join(plugin_dir, d) if fi.isRelative() else d
dest = os.path.join(dest_dir, fi.fileName())
if subdirs:
copyDir(source, dest, overwrite)
else:
# make destination directory
QDir().mkpath(dest)
# copy files in the source directory
filenames = QDir(source).entryList(QDir.Files)
for filename in filenames:
copyFile(os.path.join(source, filename), os.path.join(dest, filename), overwrite)
def removeTemporaryFiles(filelist):
for file in filelist:
QFile.remove(file)
def removeTemporaryOutputDir():
removeDir(temporaryOutputDir())
def removeDir(dirName):
d = QDir(dirName)
if d.exists():
for info in d.entryInfoList(QDir.Dirs | QDir.Files | QDir.NoDotAndDotDot):
if info.isDir():
removeDir(info.absoluteFilePath())
else:
d.remove(info.fileName())
d.rmdir(dirName)
def pluginDir(*subdirs):
p = os.path.dirname(__file__)
if subdirs:
return os.path.join(p, *subdirs)
return p
def templateDir():
return pluginDir("html_templates")
def temporaryOutputDir():
return QDir.tempPath() + "/Qgis2threejs"
def settingsFilePath():
proj_path = QgsProject.instance().fileName()
return proj_path + ".qto3settings" if proj_path else None