Revision c43528ee4f4c879cc5eeb8aec5144872dd297628 authored by Minoru Akagi on 31 October 2018, 07:28:59 UTC, committed by Minoru Akagi on 31 October 2018, 07:29:14 UTC
1 parent 9ce61f3
datamanager.py
# -*- coding: utf-8 -*-
"""
/***************************************************************************
Qgis2threejs
A QGIS plugin
export terrain data, map canvas image and vector data to web browser
-------------------
begin : 2014-01-16
copyright : (C) 2014 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
from PyQt5.QtCore import Qt, QSize, QUrl
from PyQt5.QtGui import QColor, QImage, QPainter
from qgis.core import QgsMapLayer
from . import qgis2threejstools as tools
from .qgis2threejstools import logMessage
class DataManager:
""" manages a list of unique items """
def __init__(self):
self._list = []
def count(self):
return len(self._list)
def _index(self, data):
if data in self._list:
return self._list.index(data)
index = len(self._list)
self._list.append(data)
return index
class ImageManager(DataManager):
IMAGE_FILE = 1
CANVAS_IMAGE = 2
MAP_IMAGE = 3
LAYER_IMAGE = 4
def __init__(self, exportSettings):
DataManager.__init__(self)
self.exportSettings = exportSettings
self._renderer = None
def imageIndex(self, path):
img = (self.IMAGE_FILE, path)
return self._index(img)
def canvasImageIndex(self, transp_background):
img = (self.CANVAS_IMAGE, transp_background)
return self._index(img)
def mapImageIndex(self, width, height, extent, transp_background):
img = (self.MAP_IMAGE, (width, height, extent, transp_background))
return self._index(img)
def layerImageIndex(self, layerids, width, height, extent, transp_background):
img = (self.LAYER_IMAGE, (layerids, width, height, extent, transp_background))
return self._index(img)
def mapCanvasImage(self, transp_background=False):
""" returns base64 encoded map canvas image """
canvas = self.exportSettings.canvas
size = self.exportSettings.mapSettings.outputSize()
if canvas is None or transp_background or True: #
return self.renderedImage(size.width(), size.height(), self.exportSettings.baseExtent, transp_background)
# bad - incompletely rendered image is given
image = QImage(size.width(), size.height(), QImage.Format_ARGB32_Premultiplied)
painter = QPainter()
painter.begin(image)
canvas.render(painter)
painter.end()
return image
def renderedImage(self, width, height, extent, transp_background=False, layerids=None):
# render layers with QgsMapRendererCustomPainterJob
from qgis.core import QgsMapRendererCustomPainterJob
antialias = True
settings = self.exportSettings.mapSettings
# store old map settings
old_outputSize = settings.outputSize()
old_extent = settings.extent()
old_rotation = settings.rotation()
old_layerids = settings.layerIds()
old_backgroundColor = settings.backgroundColor()
# map settings
settings.setOutputSize(QSize(width, height))
settings.setExtent(extent.unrotatedRect())
settings.setRotation(extent.rotation())
if layerids:
settings.setLayers(tools.getLayersByLayerIds(layerids))
if transp_background:
settings.setBackgroundColor(QColor(Qt.transparent))
has_pluginlayer = False
for layer in settings.layers():
if layer and layer.type() == QgsMapLayer.PluginLayer:
has_pluginlayer = True
break
# create an image
image = QImage(width, height, QImage.Format_ARGB32_Premultiplied)
painter = QPainter()
painter.begin(image)
if antialias:
painter.setRenderHint(QPainter.Antialiasing)
# rendering
job = QgsMapRendererCustomPainterJob(settings, painter)
if has_pluginlayer:
job.renderSynchronously() # use this method so that TileLayerPlugin layer is rendered correctly
else:
job.start()
job.waitForFinished()
painter.end()
# restore map settings
settings.setOutputSize(old_outputSize)
settings.setExtent(old_extent)
settings.setRotation(old_rotation)
settings.setLayers(tools.getLayersByLayerIds(old_layerids))
settings.setBackgroundColor(old_backgroundColor)
return image
def image(self, index):
image = self._list[index]
imageType = image[0]
if imageType == self.IMAGE_FILE:
image_path = image[1]
if os.path.isfile(image_path):
return QImage(image_path)
else:
logMessage("Image file not found: {0}".format(image_path))
image = QImage(1, 1, QImage.Format_RGB32)
image.fill(Qt.lightGray)
return image
if imageType == self.MAP_IMAGE:
width, height, extent, transp_background = image[1]
return self.renderedImage(width, height, extent, transp_background)
if imageType == self.LAYER_IMAGE:
layerids, width, height, extent, transp_background = image[1]
return self.renderedImage(width, height, extent, transp_background, layerids)
#imageType == self.CANVAS_IMAGE:
transp_background = image[1]
return self.mapCanvasImage(transp_background)
def base64image(self, index):
image = self.image(index)
if image:
return tools.base64image(image)
return None
def write(self, index, path):
self.image(index).save(path)
def writeAll(self, pathRoot):
for i in range(self.count()):
self.image(i).save("{0}{1}.png".format(pathRoot, i))
class MaterialManager(DataManager):
# following six material types are defined also in JS
# first three types are basic material types
MESH_LAMBERT = 0
MESH_PHONG = 1
MESH_TOON = 2
LINE_BASIC = 3
LINE_DASHED = 4
SPRITE_IMAGE = 5
# other material types for internal use
MESH_MATERIAL = 10
MESH_FLAT = 11
WIREFRAME = 12
CANVAS_IMAGE = 20
MAP_IMAGE = 21
LAYER_IMAGE = 22
IMAGE_FILE = 23
ERROR_COLOR = "0"
def __init__(self, basicType=MESH_LAMBERT):
DataManager.__init__(self)
self.basicMaterialType = basicType
def _indexCol(self, type, color, opacity=1, doubleSide=False):
if color[0:2] != "0x":
color = self.ERROR_COLOR
mtl = (type, color, opacity, doubleSide)
return self._index(mtl)
def getMeshMaterialIndex(self, color, opacity=1, doubleSide=False):
return self._indexCol(self.MESH_MATERIAL, color, opacity, doubleSide)
def getFlatMeshMaterialIndex(self, color, opacity=1, doubleSide=False):
return self._indexCol(self.MESH_FLAT, color, opacity, doubleSide)
def getBasicLineIndex(self, color, opacity=1):
return self._indexCol(self.LINE_BASIC, color, opacity)
def getDashedLineIndex(self, color, opacity=1):
return self._indexCol(self.LINE_DASHED, color, opacity)
def getWireframeIndex(self, color, opacity=1):
return self._indexCol(self.WIREFRAME, color, opacity)
def getCanvasImageIndex(self, opacity=1, transp_background=False):
mtl = (self.CANVAS_IMAGE, transp_background, opacity, True)
return self._index(mtl)
def getMapImageIndex(self, width, height, extent, opacity=1, transp_background=False):
mtl = (self.MAP_IMAGE, (width, height, extent, transp_background), opacity, True)
return self._index(mtl)
def getLayerImageIndex(self, layerids, width, height, extent, opacity=1, transp_background=False):
mtl = (self.LAYER_IMAGE, (layerids, width, height, extent, transp_background), opacity, True)
return self._index(mtl)
def getImageFileIndex(self, path, opacity=1, transp_background=False, doubleSide=False):
mtl = (self.IMAGE_FILE, (path, transp_background), opacity, doubleSide)
return self._index(mtl)
def getSpriteImageIndex(self, path_url, opacity=1):
transp_background = True
mtl = (self.SPRITE_IMAGE, (path_url, transp_background), opacity, False)
return self._index(mtl)
def build(self, index, imageManager, filepath=None, url=None, base64=False):
mtl = self._list[index]
m = {
"type": mtl[0] if mtl[0] in [self.LINE_BASIC, self.LINE_DASHED, self.SPRITE_IMAGE] else self.basicMaterialType
}
transp_background = False
if mtl[0] in [self.CANVAS_IMAGE, self.MAP_IMAGE, self.LAYER_IMAGE, self.IMAGE_FILE, self.SPRITE_IMAGE]:
if mtl[0] == self.CANVAS_IMAGE:
transp_background = mtl[1]
imgIndex = imageManager.canvasImageIndex(transp_background)
elif mtl[0] == self.MAP_IMAGE:
width, height, extent, transp_background = mtl[1]
imgIndex = imageManager.mapImageIndex(width, height, extent, transp_background)
elif mtl[0] == self.LAYER_IMAGE:
layerids, width, height, extent, transp_background = mtl[1]
imgIndex = imageManager.layerImageIndex(layerids, width, height, extent, transp_background)
elif mtl[0] == self.IMAGE_FILE:
imagepath, transp_background = mtl[1]
imgIndex = imageManager.imageIndex(imagepath)
elif mtl[0] == self.SPRITE_IMAGE:
path_url, transp_background = mtl[1]
if path_url.startswith("http:") or path_url.startswith("https:"):
url = path_url
filepath = None
else:
imgIndex = imageManager.imageIndex(path_url)
if url is None:
if base64:
m["image"] = {"base64": imageManager.base64image(imgIndex)}
else:
m["image"] = {"object": imageManager.image(imgIndex)}
else:
m["image"] = {"url": url}
if filepath:
# write image to a file
imageManager.write(imgIndex, filepath)
else:
m["c"] = int(mtl[1], 16) # color
if transp_background:
m["t"] = 1
if mtl[0] == self.WIREFRAME:
m["w"] = 1
if mtl[0] == self.MESH_FLAT:
m["flat"] = 1
opacity = mtl[2]
if opacity < 1:
m["o"] = opacity
# double sides
if mtl[3]:
m["ds"] = 1
return m
def buildAll(self, imageManager, pathRoot=None, urlRoot=None, base64=False):
mList = []
for i in range(len(self._list)):
if pathRoot is None:
filepath = url = None
else:
filepath = "{0}{1}.png".format(pathRoot, i)
url = "{0}{1}.png".format(urlRoot, i)
mList.append(self.build(i, imageManager, filepath, url, base64))
return mList
class ModelManager(DataManager):
def __init__(self, exportSettings):
DataManager.__init__(self)
self.exportSettings = exportSettings
def modelIndex(self, path):
return self._index(path)
def build(self, export=True):
l = []
for path_url in self._list:
if path_url.startswith("http:") or path_url.startswith("https:"):
url = path_url
elif export:
url = "./data/{}/models/{}".format(self.exportSettings.outputFileTitle(),
os.path.basename(path_url))
else:
url = QUrl.fromLocalFile(path_url).toString()
l.append({"url": url})
return l
def hasColladaModel(self):
for f in self._list:
_, ext = os.path.splitext(f)
if ext == ".dae":
return True
return False
def hasGLTFModel(self):
for f in self._list:
_, ext = os.path.splitext(f)
if ext in [".gltf", ".glb"]:
return True
return False
def filesToCopy(self):
f = []
if self._list:
if self.hasColladaModel():
f.append({"files": ["js/threejs/loaders/ColladaLoader.js"], "dest": "threejs/loaders"})
if self.hasGLTFModel():
f.append({"files": ["js/threejs/loaders/GLTFLoader.js"], "dest": "threejs/loaders"})
f.append({"files": self._list, "dest": "./data/{}/models".format(self.exportSettings.outputFileTitle())})
return f
def scripts(self):
s = []
if self._list:
if self.hasColladaModel():
s.append("./threejs/loaders/ColladaLoader.js")
if self.hasGLTFModel():
s.append("./threejs/loaders/GLTFLoader.js")
return s
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