gitphp 0.2.9.1 :: bus.git/blame

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		5	Marey graphs are a visualization form typically used for timetables. Time
		6	is on the x-axis and position on the y-axis. This module reads data from a
		7	transitfeed.Schedule and creates a marey graph in svg/xml format. The graph
		8	shows the speed between stops for each trip of a route.
		9
		10	TODO: This module was taken from an internal Google tool. It works but is not
		11	well intergrated into transitfeed and schedule_viewer. Also, it has lots of
		12	ugly hacks to compensate set canvas size and so on which could be cleaned up.
		13
		14	For a little more information see (I didn't make this URL ;-)
		15	http://transliteracies.english.ucsb.edu/post/research-project/research-clearinghouse-individual/research-reports/the-indexical-imagination-marey%e2%80%99s-graphic-method-and-the-technological-transformation-of-writing-in-the-nineteenth-century
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		17	MareyGraph: Class, keeps cache of graph data and graph properties
		18	and draws marey graphs in svg/xml format on request.
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		27	g}n\|p
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		30
		31	If called without arguments, the data generated in the previous call
		32	will be used. New decorators can be added between calls.
		33
		34	Args:
		35	# Class Stop is defined in transitfeed.py
		36	stoplist: [Stop, Stop, ...]
		37	# Class Trip is defined in transitfeed.py
		38	triplist: [Trip, Trip, ...]
		39
		40	Returns:
		41	# A string that contain a svg/xml web-page with a marey graph.
		42	" <svg width="1440" height="520" version="1.1" ... "
		43	s%s %s %s %s(RRt_gheightRt_slistRt_BuildStationsRt_DrawBoxt
		44	_DrawHourst _DrawStationst
		45	_DrawTripst_DrawHeadert_DrawDecoratorst_DrawFooter(Rtstoplistttriplisttheighttoutput((sO/var/www/busstop/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pytDrawHs(
		46
		47	cCsKd\|i\|id\|id\|i\|id\|i\|i\|if}\|S(NsY
		48	<svg width="%s" height="%s" version="1.1"
		49	xmlns="http://www.w3.org/2000/svg">
		50	<script type="text/ecmascript"><![CDATA[
		51	function init(evt) {
		52	if ( window.svgDocument == null )
		53	svgDocument = evt.target.ownerDocument;
		54	}
		55	var oldLine = 0;
		56	var oldStroke = 0;
		57	var hoffset= %s; // Data from python
		58
		59	function parseLinePoints(pointnode){
		60	var wordlist = pointnode.split(" ");
		61	var xlist = new Array();
		62	var h;
		63	var m;
		64	// TODO: add linebreaks as appropriate
		65	var xstr = " Stop Times :";
		66	for (i=0;i<wordlist.length;i=i+2){
		67	var coord = wordlist[i].split(",");
		68	h = Math.floor(parseInt((coord[0])-20)/60);
		69	m = parseInt((coord[0]-20))%%60;
		70	xstr = xstr +" "+ (hoffset+h) +":"+m;
		71	}
		72
		73	return xstr;
		74	}
		75
		76	function LineClick(tripid, x) {
		77	var line = document.getElementById(tripid);
		78	if (oldLine)
		79	oldLine.setAttribute("stroke",oldStroke);
		80	oldLine = line;
		81	oldStroke = line.getAttribute("stroke");
		82
		83	line.setAttribute("stroke","#fff");
		84
		85	var dynTxt = document.getElementById("dynamicText");
		86	var tripIdTxt = document.createTextNode(x);
		87	while (dynTxt.hasChildNodes()){
		88	dynTxt.removeChild(dynTxt.firstChild);
		89	}
		90	dynTxt.appendChild(tripIdTxt);
		91	}
		92	]]> </script>
		93	<style type="text/css"><![CDATA[
		94	.T { fill:none; stroke-width:1.5 }
		95	.TB { fill:none; stroke:#e20; stroke-width:2 }
		96	.Station { fill:none; stroke-width:1 }
		97	.Dec { fill:none; stroke-width:1.5 }
		98	.FullHour { fill:none; stroke:#eee; stroke-width:1 }
		99	.SubHour { fill:none; stroke:#ddd; stroke-width:1 }
		100	.Label { fill:#aaa; font-family:Helvetica,Arial,sans;
		101	text-anchor:middle }
		102	.Info { fill:#111; font-family:Helvetica,Arial,sans;
		103	text-anchor:start; }
		104	]]></style>
		105	<text class="Info" id="dynamicText" x="0" y="%d"></text>
		106	<g id="mcanvas" transform="translate(%s,%s)">
		107	<g id="zcanvas" transform="scale(%s)">
		108
		109	iii
		110	(RR RR RR(Rt
		111
		112	fill="lightgrey" stroke="%s" stroke-width="2" />
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		114
		115	Args:
		116	# Class Stop is defined in transitfeed.py
		117	stoplist: [Stop, Stop, ...]
		118	# Class Trip is defined in transitfeed.py
		119	triplist: [Trip, Trip, ...]
		120
		121	Returns:
		122	# One integer y-coordinate for each station normalized between
		123	# 0 and X, where X is the height of the graph in pixels
		124	[0, 33, 140, ... , X]
		125
		126
		127	Uses the stoplists long/lats to approximate distances
		128	between stations and build a list with y-coordinates for the
		129	horizontal lines in the graph.
		130
		131	Args:
		132	# Class Stop is defined in transitfeed.py
		133	stoplist: [Stop, Stop, ...]
		134
		135	Returns:
		136	# One integer for each pair of stations
		137	# indicating the approximate distance
		138	[0,33,140, ... ,X]
		139
		140
		141
		142	Args:
		143	# One integer for each pair of stations
		144	# indicating the approximate distance
		145	dists: [0,33,140, ... ,X]
		146
		147	Returns:
		148	# One integer y-coordinate for each station normalized between
		149	# 0 and X, where X is the height of the graph in pixels
		150	[0, 33, 140, ... , X]
		151	ii(tsumtfloatRt enumeratetint(
		152	RR)ttot_distR/tdt
		153	pixel_distt_[2]titpdt
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		155
		156	Uses a timetable to approximate distances
		157	between stations
		158
		159	Args:
		160	# Class Trip is defined in transitfeed.py
		161	triplist: [Trip, Trip, ...]
		162	# (Optional) Index of Triplist prefered for timetable Calculation
		163	index: 3
		164
		165	Returns:
		166	# One integer for each pair of stations
		167	# indicating the approximate distance
		168	[0,33,140, ... ,X]
		169
		170	iiii(tlenR*R+tGetTimeStops( RRtindexRBttripR/R0R1tt_dists2((RsO/var/www/busstop/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyt_TravelTimess$
		171	McCs \|GHdS(N((RR((sO/var/www/busstop/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyt_AddWarning&stc
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		174
		175	d
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		177
		178	Args:
		179	# Class Trip is defined in transitfeed.py
		180	[Trip, Trip, ...]
		181
		182	Returns:
		183	# A string containing a polyline tag for each trip
		184	' <polyline class="T" stroke="#336633" points="433,0 ...'
		185
		186	service_idtappendR6RERCthexRDR5ttrip_idR,tFormatSecondsSinceMidnighttGetStartTimeRtNoneR
		187	R R$(RRtcolparR(ttmpstrstservlisttttshadetcolort start_offsetst
		188	first_stoptjtfreq_offsett
		189	scriptcallt
		190	tmpstrheadR;tstarr_ttdep_ttarr_xtdep_x((sO/var/www/busstop/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyR)sV
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		192	*
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		197	Args:
		198	# Class Stop is defined in transitfeed.py
		199	stations: [Stop, Stop, ...]
		200
		201	Returns:
		202	# A string containing a polyline tag for each stop
		203	" <polyline class="Station" stroke="#336633" points="20,0 ..."
		204
		205
		206	Returns:
		207	# A string containing a polyline tag for each grid line
		208	" <polyline class="FullHour" points="20,0 ..."
		209
		210	RNRR R$(RRUR;((sO/var/www/busstop/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyR{s '
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		213
		214	Args:
		215	# Integer, index of stop to be highlighted.
		216	index: 4
		217	# An optional string with a html color code
		218	color: "#fff"
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		221
		222	Args:
		223	# Class Trip is defined in transitfeed.py
		224	triplist: [Trip, Trip, ...]
		225	# An optional string with a html color code
		226	color: "#fff"
		227
		228
		229	1.0 is the original canvas size.
		230
		231	Args:
		232	# float value between 0.0 and 5.0
		233	newfactor: 0.7
		234
		235
		236
		237	N(t__name__t
		238	__module__t__doc__RmR>RRSR!RRRRRR&R'RHRIRRLRRRkRlRoRpRqRrRtR\|(((sO/var/www/busstop/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyR(s4 ) E $ : ((RR*R,R(((sO/var/www/busstop/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyt<module>"s