def loadXML(self, xmlfile=None, strict=False, xmlstring='', basepath=''):
config = ConfigParser.SafeConfigParser()
map_wms_srs = None
if self.configpath:
config.readfp(open(self.configpath))
if config.has_option('map', 'wms_srs'):
map_wms_srs = config.get('map', 'wms_srs')
tmp_map = Map(0, 0)
if xmlfile:
load_map(tmp_map, xmlfile, strict)
elif xmlstring:
load_map_from_string(tmp_map, xmlstring, strict, basepath)
else:
raise ServerConfigurationError(
"Mapnik configuration XML is not specified - 'xmlfile' and 'xmlstring' variables are empty.\
Please set one of this variables to load mapnik map object.")
# get the map scale
if tmp_map.parameters:
if tmp_map.parameters['scale']:
self.map_scale = float(tmp_map.parameters['scale'])
# parse map level attributes
if tmp_map.background:
self.map_attributes['bgcolor'] = tmp_map.background
if tmp_map.buffer_size:
self.map_attributes['buffer_size'] = tmp_map.buffer_size
for lyr in tmp_map.layers:
layer_section = 'layer_%s' % lyr.name
layer_wms_srs = None
if config.has_option(layer_section, 'wms_srs'):
layer_wms_srs = config.get(layer_section, 'wms_srs')
else:
layer_wms_srs = map_wms_srs
if config.has_option(layer_section, 'title'):
lyr.title = config.get(layer_section, 'title')
else:
lyr.title = ''
if config.has_option(layer_section, 'abstract'):
lyr.abstract = config.get(layer_section, 'abstract')
else:
lyr.abstract = ''
style_count = len(lyr.styles)
if style_count == 0:
raise ServerConfigurationError(
"Cannot register Layer '%s' without a style" % lyr.name)
elif style_count == 1:
style_obj = tmp_map.find_style(lyr.styles[0])
style_name = lyr.styles[0]
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles['%s_meta' % lyr.name] = meta_s
if hasattr(lyr, 'abstract'):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = '%s:%s' % (name_, '-'.join(meta_s.names))
meta_layer_name = meta_layer_name.replace(' ', '_')
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
print meta_layer_name
if style_name not in self.aggregatestyles.keys(
) and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_,
style_name,
extrastyles=(style_name, ))
elif style_count > 1:
for style_name in lyr.styles:
style_obj = tmp_map.find_style(style_name)
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles['%s_meta' % lyr.name] = meta_s
if hasattr(lyr, 'abstract'):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = '%s:%s' % (name_, '-'.join(
meta_s.names))
meta_layer_name = meta_layer_name.replace(' ', '_')
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
print meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
if style_name not in self.aggregatestyles.keys(
) and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
aggregates = tuple([sty for sty in lyr.styles])
aggregates_name = '%s_aggregates' % lyr.name
self.register_aggregate_style(aggregates_name, aggregates)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_,
aggregates_name,
extrastyles=aggregates)
if 'default' in aggregates:
sys.stderr.write(
"Warning: Multi-style layer '%s' contains a regular style named 'default'. \
This style will effectively be hidden by the 'all styles' default style for multi-style layers.\n"
% lyr_.name)
def loadXML(self, xmlfile=None, strict=False, xmlstring='', basepath=''):
config = ConfigParser.SafeConfigParser()
map_wms_srs = None
if self.configpath:
config.readfp(open(self.configpath))
if config.has_option('map', 'wms_srs'):
map_wms_srs = config.get('map', 'wms_srs')
tmp_map = Map(0,0)
if xmlfile:
load_map(tmp_map, xmlfile, strict)
elif xmlstring:
load_map_from_string(tmp_map, xmlstring, strict, basepath)
else:
raise ServerConfigurationError("Mapnik configuration XML is not specified - 'xmlfile' and 'xmlstring' variables are empty.\
Please set one of this variables to load mapnik map object.")
# parse map level attributes
if tmp_map.background:
self.map_attributes['bgcolor'] = tmp_map.background
if tmp_map.buffer_size:
self.map_attributes['buffer_size'] = tmp_map.buffer_size
for lyr in tmp_map.layers:
layer_section = 'layer_%s' % lyr.name
layer_wms_srs = None
if config.has_option(layer_section, 'wms_srs'):
layer_wms_srs = config.get(layer_section, 'wms_srs')
else:
layer_wms_srs = map_wms_srs
if config.has_option(layer_section, 'title'):
lyr.title = config.get(layer_section, 'title')
else:
lyr.title = ''
if config.has_option(layer_section, 'abstract'):
lyr.abstract = config.get(layer_section, 'abstract')
else:
lyr.abstract = ''
style_count = len(lyr.styles)
if style_count == 0:
raise ServerConfigurationError("Cannot register Layer '%s' without a style" % lyr.name)
elif style_count == 1:
style_obj = tmp_map.find_style(lyr.styles[0])
style_name = lyr.styles[0]
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles['%s_meta' % lyr.name] = meta_s
if hasattr(lyr,'abstract'):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = '%s:%s' % (name_,'-'.join(meta_s.names))
meta_layer_name = meta_layer_name.replace(' ','_')
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
print meta_layer_name
if style_name not in self.aggregatestyles.keys() and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_, style_name, extrastyles=(style_name,))
elif style_count > 1:
for style_name in lyr.styles:
style_obj = tmp_map.find_style(style_name)
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles['%s_meta' % lyr.name] = meta_s
if hasattr(lyr,'abstract'):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = '%s:%s' % (name_,'-'.join(meta_s.names))
meta_layer_name = meta_layer_name.replace(' ','_')
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
print meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
if style_name not in self.aggregatestyles.keys() and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
aggregates = tuple([sty for sty in lyr.styles])
aggregates_name = '%s_aggregates' % lyr.name
self.register_aggregate_style(aggregates_name,aggregates)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_, aggregates_name, extrastyles=aggregates)
def loadXML(self, xmlfile, strict=False):
config = ConfigParser.SafeConfigParser()
map_wms_srs = None
if self.configpath:
config.readfp(open(self.configpath))
if config.has_option('map', 'wms_srs'):
map_wms_srs = config.get('map', 'wms_srs')
tmp_map = Map(0, 0)
load_map(tmp_map, xmlfile, strict)
# parse map level attributes
if tmp_map.background:
self.map_attributes['bgcolor'] = tmp_map.background
if tmp_map.buffer_size:
self.map_attributes['buffer_size'] = tmp_map.buffer_size
for lyr in tmp_map.layers:
layer_section = 'layer_%s' % lyr.name
layer_wms_srs = None
if config.has_option(layer_section, 'wms_srs'):
layer_wms_srs = config.get(layer_section, 'wms_srs')
else:
layer_wms_srs = map_wms_srs
style_count = len(lyr.styles)
if style_count == 0:
raise ServerConfigurationError(
"Cannot register Layer '%s' without a style" % lyr.name)
elif style_count == 1:
style_obj = tmp_map.find_style(lyr.styles[0])
style_name = lyr.styles[0]
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles['%s_meta' % lyr.name] = meta_s
if hasattr(lyr, 'abstract'):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = '%s:%s' % (name_, '-'.join(meta_s.names))
meta_layer_name = meta_layer_name.replace(' ', '_')
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
print meta_layer_name
if style_name not in self.aggregatestyles.keys(
) and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_,
style_name,
extrastyles=(style_name, ))
elif style_count > 1:
for style_name in lyr.styles:
style_obj = tmp_map.find_style(style_name)
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles['%s_meta' % lyr.name] = meta_s
if hasattr(lyr, 'abstract'):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = '%s:%s' % (name_, '-'.join(
meta_s.names))
meta_layer_name = meta_layer_name.replace(' ', '_')
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
print meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
if style_name not in self.aggregatestyles.keys(
) and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
aggregates = tuple([sty for sty in lyr.styles])
aggregates_name = '%s_aggregates' % lyr.name
self.register_aggregate_style(aggregates_name, aggregates)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_,
aggregates_name,
extrastyles=aggregates)
def loadXML(self, xmlfile, strict=False):
config = ConfigParser.SafeConfigParser()
map_wms_srs = None
if self.configpath:
config.readfp(open(self.configpath))
if config.has_option("map", "wms_srs"):
map_wms_srs = config.get("map", "wms_srs")
tmp_map = Map(0, 0)
load_map(tmp_map, xmlfile, strict)
# parse map level attributes
if tmp_map.background:
self.map_attributes["bgcolor"] = tmp_map.background
if tmp_map.buffer_size:
self.map_attributes["buffer_size"] = tmp_map.buffer_size
for lyr in tmp_map.layers:
layer_section = "layer_%s" % lyr.name
layer_wms_srs = None
if config.has_option(layer_section, "wms_srs"):
layer_wms_srs = config.get(layer_section, "wms_srs")
else:
layer_wms_srs = map_wms_srs
if config.has_option(layer_section, "title"):
lyr.title = config.get(layer_section, "title")
else:
lyr.title = ""
if config.has_option(layer_section, "abstract"):
lyr.abstract = config.get(layer_section, "abstract")
else:
lyr.abstract = ""
style_count = len(lyr.styles)
if style_count == 0:
raise ServerConfigurationError("Cannot register Layer '%s' without a style" % lyr.name)
elif style_count == 1:
style_obj = tmp_map.find_style(lyr.styles[0])
style_name = lyr.styles[0]
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles["%s_meta" % lyr.name] = meta_s
if hasattr(lyr, "abstract"):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = "%s:%s" % (name_, "-".join(meta_s.names))
meta_layer_name = meta_layer_name.replace(" ", "_")
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
print meta_layer_name
if style_name not in self.aggregatestyles.keys() and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_, style_name, extrastyles=(style_name,))
elif style_count > 1:
for style_name in lyr.styles:
style_obj = tmp_map.find_style(style_name)
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles["%s_meta" % lyr.name] = meta_s
if hasattr(lyr, "abstract"):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = "%s:%s" % (name_, "-".join(meta_s.names))
meta_layer_name = meta_layer_name.replace(" ", "_")
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
print meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
if style_name not in self.aggregatestyles.keys() and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
aggregates = tuple([sty for sty in lyr.styles])
aggregates_name = "%s_aggregates" % lyr.name
self.register_aggregate_style(aggregates_name, aggregates)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_, aggregates_name, extrastyles=aggregates)
def loadXML(self, xmlfile=None, strict=False, xmlstring='', basepath=''):
config = ConfigParser.SafeConfigParser()
#声明变量，用于保存 map中的wms_srs
map_wms_srs = None
if self.configpath:
config.readfp(open(self.configpath))
if config.has_option('map', 'wms_srs'):
map_wms_srs = config.get('map', 'wms_srs')
#声明变量tmp_map保存Map(0,0),Map从mapnik模块中导入,此处详见doc/mapnik_help.text
tmp_map = Map(0, 0)
#支持文件模式和字符串格式的输入
if xmlfile:
load_map(tmp_map, xmlfile, strict)
elif xmlstring:
load_map_from_string(tmp_map, xmlstring, strict, basepath)
else:
#差错机制
raise ServerConfigurationError(
"Mapnik configuration XML is not specified - 'xmlfile' and 'xmlstring' variables are empty.\
Please set one of this variables to load mapnik map object.")
# parse map level attributes
#解析地图图层特征参数
#背景颜色（待查）
if tmp_map.background:
self.map_attributes['bgcolor'] = tmp_map.background
#buffer大小（待查）
if tmp_map.buffer_size:
self.map_attributes['buffer_size'] = tmp_map.buffer_size
#对tmp_map中layers中所有lyr，进行参数解析
for lyr in tmp_map.layers:
layer_section = 'layer_%s' % lyr.name
layer_wms_srs = None
if config.has_option(layer_section, 'wms_srs'):
layer_wms_srs = config.get(layer_section, 'wms_srs')
else:
layer_wms_srs = map_wms_srs
if config.has_option(layer_section, 'title'):
lyr.title = config.get(layer_section, 'title')
else:
lyr.title = ''
if config.has_option(layer_section, 'abstract'):
lyr.abstract = config.get(layer_section, 'abstract')
else:
lyr.abstract = ''
style_count = len(lyr.styles)
#必须设定有lyr.styles
if style_count == 0:
raise ServerConfigurationError(
"Cannot register Layer '%s' without a style" % lyr.name)
elif style_count == 1:
#.find_style方法为mapnik中Map类的方法？？？？？
style_obj = tmp_map.find_style(lyr.styles[0])
style_name = lyr.styles[0]
# 对style_obj进行处理，提取参数返回为 style类
meta_s = extract_named_rules(style_obj)
if meta_s:
# BaseWMSFactory类的meta_styles属性
self.meta_styles['%s_meta' % lyr.name] = meta_s
# 判断lyr是否含有abstract属性
if hasattr(lyr, 'abstract'):
name_ = lyr.abstract
else:
name_ = lyr.name
# 将meta_s.names中的字符串序列用“-”连接
meta_layer_name = '%s:%s' % (name_, '-'.join(meta_s.names))
# 将meta_layer_name中的空格全部替换为“_”
meta_layer_name = meta_layer_name.replace(' ', '_')
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
print meta_layer_name
# 如果aggregatestyles和styles中没有style_name的关键字，则注册style。.register_style为本类定义的方法
if style_name not in self.aggregatestyles.keys(
) and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
# must copy layer here otherwise we'll segfault
# c此处必须拷贝图层，否则将出现段错误
# common
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
#register_layer为本类定义的一个方法，
self.register_layer(lyr_,
style_name,
extrastyles=(style_name, ))
# 当style_count > 1时，处理步骤与style_count = 1时大致相同，
elif style_count > 1:
for style_name in lyr.styles:
style_obj = tmp_map.find_style(style_name)
meta_s = extract_named_rules(style_obj)
if meta_s:
self.meta_styles['%s_meta' % lyr.name] = meta_s
if hasattr(lyr, 'abstract'):
name_ = lyr.abstract
else:
name_ = lyr.name
meta_layer_name = '%s:%s' % (name_, '-'.join(
meta_s.names))
meta_layer_name = meta_layer_name.replace(' ', '_')
self.meta_styles[meta_layer_name] = meta_s
meta_lyr = common.copy_layer(lyr)
meta_lyr.meta_style = meta_layer_name
print meta_layer_name
meta_lyr.name = meta_layer_name
meta_lyr.wmsextrastyles = ()
meta_lyr.defaultstyle = meta_layer_name
meta_lyr.wms_srs = layer_wms_srs
self.ordered_layers.append(meta_lyr)
self.meta_layers[meta_layer_name] = meta_lyr
if style_name not in self.aggregatestyles.keys(
) and style_name not in self.styles.keys():
self.register_style(style_name, style_obj)
# 与style_count = 1时的不同之处，
aggregates = tuple([sty for sty in lyr.styles])
aggregates_name = '%s_aggregates' % lyr.name
self.register_aggregate_style(aggregates_name, aggregates)
# must copy layer here otherwise we'll segfault
lyr_ = common.copy_layer(lyr)
lyr_.wms_srs = layer_wms_srs
self.register_layer(lyr_,
aggregates_name,
extrastyles=aggregates)
if 'default' in aggregates:
sys.stderr.write(
"Warning: Multi-style layer '%s' contains a regular style named 'default'. \
This style will effectively be hidden by the 'all styles' default style for multi-style layers.\n"
% lyr_.name)