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Geoview simplifications

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svn: r13212
This commit is contained in:
Gerald Britton
2009-09-16 16:12:40 +00:00
parent 60abf87026
commit c2dd4dc139
1 changed files with 131 additions and 71 deletions
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202
src/DataViews/GeoView.py
View File

@@ -84,6 +84,82 @@ from HtmlRenderer import HtmlView
GEOVIEW_SUBPATH = Utils.get_empty_tempdir('geoview')
NB_MARKERS_PER_PAGE = 200
#-------------------------------------------------------------------------
#
# Javascript template
#
#-------------------------------------------------------------------------
_JAVASCRIPT = '''<script>
var gmarkers = [];
var min = 0;
var zoom = 0;
var pos = 0;
var selected = 0;
var current_map = '{current_map}';
var selectedmarkers = 'All';
// shows or hide markers of a particular category
function selectmarkers(year) {{
selectedmarkers = year;
for (var i=0; i<gmarkers.length; i++) {{
val = gmarkers[i].getAttribute("year");
min = parseInt(year);
max = min + step;
if ( selectedmarkers == "All" )
{{ min = 0; max = 9999; }}
gmarkers[i].hide();
gmarkers[i].closeBubble();
years = val.split(' ');
for ( j=0; j < years.length; j++) {{
if ( years[j] >= min ) {{
if ( years[j] < max ) {{
gmarkers[i].show();
}}
}}
}}
}}
}}
function savezoomandposition(mapstraction) {{
var t=setTimeout("savezoomandposition(mapstraction)",1000);
nzoom = mapstraction.getZoom();
nposition=mapstraction.getCenter();
if ( ( nzoom != zoom ) || ( nposition != pos )) {{
zoom = nzoom;
pos = nposition;
document.title = "zoom=" + zoom + " coord=" + pos + ":::";
}}
}}
function removemarkers(mapstraction) {{
for ( m=0; m < gmarkers.length; m++) {{
mapstraction.removeMarker(gmarkers[m]);
}}
}}
function get_selected_radio() {{
selected = 0;
for ( b=0; b < document.btns.years.length; b++) {{
if ( document.btns.years[b].checked == true )
selected=b;
}}
}}
function set_selected_radio() {{
document.btns.years[selected].click();
}}
function reset_radio() {{
document.btns.years[0].click();
}}
function swap_map(div,map) {{
savezoomandposition(mapstraction);
{get_radio}
removemarkers(mapstraction);
current_map=map;
mapstraction.swap(div,map);
{reset_radio}
setmarkers(mapstraction);
mapstraction.enableScrollWheelZoom();
{set_radio}
}}
'''
#-------------------------------------------------------------------------
#
# Functions
@@ -182,9 +258,9 @@ class GeoView(HtmlView):
self.sort = []
self.without_coord_file = []
self.place_without_coordinates = []
self.minlat = float(0.0)
self.maxlat = float(0.0)
self.minlon = float(0.0)
self.minlat = 0.0
self.maxlat = 0.0
self.minlon = 0.0
self.key_active_changed = None
def top_widget(self):
@@ -624,6 +700,18 @@ class GeoView(HtmlView):
"""
Create the needed javascript functions.
"""
not_places = self.displaytype != "places"
self.mapview.write(
_JAVASCRIPT.format(
current_map = self.usedmap,
get_radio = "get_selected_radio();\n" if not_places else "",
reset_radio = "reset_radio();\n" if not_places else "",
set_radio = "set_selected_radio();\n" if not_places else "",
)
)
return
self.mapview.write("<script>\n")
self.mapview.write(" var gmarkers = [];\n")
self.mapview.write(" var min = 0;\n")
@@ -761,6 +849,7 @@ class GeoView(HtmlView):
"""
Add the last directives for the html page.
"""
self.mapview.write(" setcenterandzoom(mapstraction);\n")
self.mapview.write(" setmarkers(mapstraction);\n")
self.mapview.write(" savezoomandposition(mapstraction);\n")
@@ -771,6 +860,7 @@ class GeoView(HtmlView):
self.mapview.write("</script>\n")
self.mapview.write("</body>\n")
self.mapview.write("</html>\n")
self.mapview.close()
def _set_center_and_zoom(self, ptype):
@@ -800,18 +890,15 @@ class GeoView(HtmlView):
# Calculate the zoom. all places must be displayed on the map.
zoomlat = _get_zoom_lat(maxlat)
zoomlong = _get_zoom_long(maxlong)
if zoomlat < zoomlong:
self.zoom = zoomlat
else:
self.zoom = zoomlong
self.zoom = zoomlat if zoomlat < zoomlong else zoomlong
self.zoom -= 1
if self.zoom < 2:
self.zoom = 2
# We center the map on a point at the center of all markers
self.centerlat = maxlat/2
self.centerlon = maxlong/2
latit = 0.0
longt = 0.0
latit = longt = 0.0
for mark in self.sort:
cent = int(mark[6])
if cent:
@@ -835,11 +922,11 @@ class GeoView(HtmlView):
else:
longt = self.minlon+self.centerlon
# all maps: 0.0 for longitude and latitude means no location.
if latit == 0.0 and longt == 0.0:
latit = 0.00000001
longt = 0.00000001
if latit == longt == 0.0:
latit = longt = 0.00000001
self.mustcenter = False
if latit != 0.0 or longt != 0.0:
if not (latit == longt == 0.0):
self.latit = latit
self.longt = longt
self.mustcenter = True
@@ -860,16 +947,7 @@ class GeoView(HtmlView):
self._set_center_and_zoom(ptype)
for page in range(0, pages, 1):
self.nbpages += 1
if ptype == 1:
ftype = "P"
elif ptype == 2:
ftype = "E"
elif ptype == 3:
ftype = "F"
elif ptype == 4:
ftype = "I"
else:
ftype = "X"
ftype = {1:'P', 2:'E', 3:'F', 4:'I'}.get(ptype, 'X')
filename = os.path.join(GEOVIEW_SUBPATH,
"GeoV-%c-%05d.html" %
(ftype, self.nbpages))
@@ -928,34 +1006,16 @@ class GeoView(HtmlView):
self.minyear = tfc
if tfc > self.maxyear:
self.maxyear = tfc
if tfa < 0.0:
tfa -= 0.00000001
else:
tfa += 0.00000001
if tfb < 0.0:
tfb -= 0.00000001
else:
tfb += 0.00000001
if self.minlat == 0.0:
tfa += 0.00000001 if tfa >= 0 else -0.00000001
tfb += 0.00000001 if tfb >= 0 else -0.00000001
if self.minlat == 0.0 or 0.0 > tfa < self.minlat:
self.minlat = tfa
if tfa < self.minlat:
if tfa < 0.0:
self.minlat = tfa
if self.maxlat == 0.0:
if self.maxlat == 0.0 or 0.0 < tfa > self.maxlat:
self.maxlat = tfa
if tfa > self.maxlat:
if tfa > 0.0:
self.maxlat = tfa
if self.minlon == 0.0:
if self.minlon == 0.0 or 0.0 > tfb < self.minlon:
self.minlon = tfb
if tfb < self.minlon:
if tfb < 0.0:
self.minlon = tfb
if self.maxlon == 0.0:
if self.maxlon == 0.0 or 0.0 < tfb > self.maxlon:
self.maxlon = tfb
if tfb > self.maxlon:
if tfb > 0.0:
self.maxlon = tfb
def _create_markers(self, format, firstm, lastm):
"""
@@ -1169,12 +1229,12 @@ class GeoView(HtmlView):
"""
self.place_list = []
self.place_without_coordinates = []
self.minlat = float(0.0)
self.maxlat = float(0.0)
self.minlon = float(0.0)
self.maxlon = float(0.0)
self.minyear = int(9999)
self.maxyear = int(0)
self.minlat = 0.0
self.maxlat = 0.0
self.minlon = 0.0
self.maxlon = 0.0
self.minyear = 9999
self.maxyear = 0
latitude = ""
longitude = ""
self.center = True
@@ -1211,12 +1271,12 @@ class GeoView(HtmlView):
"""
self.place_list = []
self.place_without_coordinates = []
self.minlat = float(0.0)
self.maxlat = float(0.0)
self.minlon = float(0.0)
self.maxlon = float(0.0)
self.minyear = int(9999)
self.maxyear = int(0)
self.minlat = 0.0
self.maxlat = 0.0
self.minlon = 0.0
self.maxlon = 0.0
self.minyear = 9999
self.maxyear = 0
latitude = ""
longitude = ""
self.center = True
@@ -1293,12 +1353,12 @@ class GeoView(HtmlView):
"""
self.place_list = []
self.place_without_coordinates = []
self.minlat = float(0.0)
self.maxlat = float(0.0)
self.minlon = float(0.0)
self.maxlon = float(0.0)
self.minyear = int(9999)
self.maxyear = int(0)
self.minlat = 0.0
self.maxlat = 0.0
self.minlon = 0.0
self.maxlon = 0.0
self.minyear = 9999
self.maxyear = 0
self.center = True
person = None
if dbstate.active:
@@ -1356,12 +1416,12 @@ class GeoView(HtmlView):
"""
self.place_list = []
self.place_without_coordinates = []
self.minlat = float(0.0)
self.maxlat = float(0.0)
self.minlon = float(0.0)
self.maxlon = float(0.0)
self.minyear = int(9999)
self.maxyear = int(0)
self.minlat = 0.0
self.maxlat = 0.0
self.minlon = 0.0
self.maxlon = 0.0
self.minyear = 9999
self.maxyear = 0
latitude = ""
longitude = ""
person = None