gitphp 0.2.9.1 :: bus.git/blame

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		4	Marey graphs are a visualization form typically used for timetables. Time
		5	is on the x-axis and position on the y-axis. This module reads data from a
		6	transitfeed.Schedule and creates a marey graph in svg/xml format. The graph
		7	shows the speed between stops for each trip of a route.
		8
		9	TODO: This module was taken from an internal Google tool. It works but is not
		10	well intergrated into transitfeed and schedule_viewer. Also, it has lots of
		11	ugly hacks to compensate set canvas size and so on which could be cleaned up.
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		13	For a little more information see (I didn't make this URL ;-)
		14	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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		16	MareyGraph: Class, keeps cache of graph data and graph properties
		17	and draws marey graphs in svg/xml format on request.
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		28	If called without arguments, the data generated in the previous call
		29	will be used. New decorators can be added between calls.
		30
		31	Args:
		32	# Class Stop is defined in transitfeed.py
		33	stoplist: [Stop, Stop, ...]
		34	# Class Trip is defined in transitfeed.py
		35	triplist: [Trip, Trip, ...]
		36
		37	Returns:
		38	# A string that contain a svg/xml web-page with a marey graph.
		39	" <svg width="1440" height="520" version="1.1" ... "
		40	s%s %s %s %s(RRt_gheightRt_slistRt_BuildStationsRt_DrawBoxt
		41	_DrawHourst _DrawStationst
		42	_DrawTripst_DrawHeadert_DrawDecoratorst_DrawFooter(Rtstoplistttriplisttheighttoutput((sK/var/www/bus/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pytDrawHs( cCsKd\|j\|jd\|jd\|j\|jd\|j\|j\|jf}\|S(NsY
		43	<svg width="%s" height="%s" version="1.1"
		44	xmlns="http://www.w3.org/2000/svg">
		45	<script type="text/ecmascript"><![CDATA[
		46	function init(evt) {
		47	if ( window.svgDocument == null )
		48	svgDocument = evt.target.ownerDocument;
		49	}
		50	var oldLine = 0;
		51	var oldStroke = 0;
		52	var hoffset= %s; // Data from python
		53
		54	function parseLinePoints(pointnode){
		55	var wordlist = pointnode.split(" ");
		56	var xlist = new Array();
		57	var h;
		58	var m;
		59	// TODO: add linebreaks as appropriate
		60	var xstr = " Stop Times :";
		61	for (i=0;i<wordlist.length;i=i+2){
		62	var coord = wordlist[i].split(",");
		63	h = Math.floor(parseInt((coord[0])-20)/60);
		64	m = parseInt((coord[0]-20))%%60;
		65	xstr = xstr +" "+ (hoffset+h) +":"+m;
		66	}
		67
		68	return xstr;
		69	}
		70
		71	function LineClick(tripid, x) {
		72	var line = document.getElementById(tripid);
		73	if (oldLine)
		74	oldLine.setAttribute("stroke",oldStroke);
		75	oldLine = line;
		76	oldStroke = line.getAttribute("stroke");
		77
		78	line.setAttribute("stroke","#fff");
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		80	var dynTxt = document.getElementById("dynamicText");
		81	var tripIdTxt = document.createTextNode(x);
		82	while (dynTxt.hasChildNodes()){
		83	dynTxt.removeChild(dynTxt.firstChild);
		84	}
		85	dynTxt.appendChild(tripIdTxt);
		86	}
		87	]]> </script>
		88	<style type="text/css"><![CDATA[
		89	.T { fill:none; stroke-width:1.5 }
		90	.TB { fill:none; stroke:#e20; stroke-width:2 }
		91	.Station { fill:none; stroke-width:1 }
		92	.Dec { fill:none; stroke-width:1.5 }
		93	.FullHour { fill:none; stroke:#eee; stroke-width:1 }
		94	.SubHour { fill:none; stroke:#ddd; stroke-width:1 }
		95	.Label { fill:#aaa; font-family:Helvetica,Arial,sans;
		96	text-anchor:middle }
		97	.Info { fill:#111; font-family:Helvetica,Arial,sans;
		98	text-anchor:start; }
		99	]]></style>
		100	<text class="Info" id="dynamicText" x="0" y="%d"></text>
		101	<g id="mcanvas" transform="translate(%s,%s)">
		102	<g id="zcanvas" transform="scale(%s)">
		103
		104	iii
		105	(RR RR RR(Rt
		106
		107	fill="lightgrey" stroke="%s" stroke-width="2" />
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		109
		110	Args:
		111	# Class Stop is defined in transitfeed.py
		112	stoplist: [Stop, Stop, ...]
		113	# Class Trip is defined in transitfeed.py
		114	triplist: [Trip, Trip, ...]
		115
		116	Returns:
		117	# One integer y-coordinate for each station normalized between
		118	# 0 and X, where X is the height of the graph in pixels
		119	[0, 33, 140, ... , X]
		120
		121
		122	Uses the stoplists long/lats to approximate distances
		123	between stations and build a list with y-coordinates for the
		124	horizontal lines in the graph.
		125
		126	Args:
		127	# Class Stop is defined in transitfeed.py
		128	stoplist: [Stop, Stop, ...]
		129
		130	Returns:
		131	# One integer for each pair of stations
		132	# indicating the approximate distance
		133	[0,33,140, ... ,X]
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		135
		136	Args:
		137	# One integer for each pair of stations
		138	# indicating the approximate distance
		139	dists: [0,33,140, ... ,X]
		140
		141	Returns:
		142	# One integer y-coordinate for each station normalized between
		143	# 0 and X, where X is the height of the graph in pixels
		144	[0, 33, 140, ... , X]
		145	ii(tsumtfloatRt enumeratetint(RR)ttot_disttdt
		146	pixel_disttitpdt
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		149
		150	Uses a timetable to approximate distances
		151	between stations
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		153	Args:
		154	# Class Trip is defined in transitfeed.py
		155	triplist: [Trip, Trip, ...]
		156	# (Optional) Index of Triplist prefered for timetable Calculation
		157	index: 3
		158
		159	Returns:
		160	# One integer for each pair of stations
		161	# indicating the approximate distance
		162	[0,33,140, ... ,X]
		163
		164	iiii(tlenR*R+tGetTimeStops(RRtindexR@ttripR/R0tt_dists2((RsK/var/www/bus/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyt_TravelTimess"
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		170	Args:
		171	# Class Trip is defined in transitfeed.py
		172	[Trip, Trip, ...]
		173
		174	Returns:
		175	# A string containing a polyline tag for each trip
		176	' <polyline class="T" stroke="#336633" points="433,0 ...'
		177
		178	service_idtappendR5RCRAthexRBR4ttrip_idR,tFormatSecondsSinceMidnighttGetStartTimeRtNoneR
		179	R R$(RRtcolparR(ttmpstrstservlisttttshadetcolort start_offsetst
		180	first_stoptjtfreq_offsett
		181	scriptcallt
		182	tmpstrheadR9tstarr_ttdep_ttarr_xtdep_x((sK/var/www/bus/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyR)sP
		183	*
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		188	Args:
		189	# Class Stop is defined in transitfeed.py
		190	stations: [Stop, Stop, ...]
		191
		192	Returns:
		193	# A string containing a polyline tag for each stop
		194	" <polyline class="Station" stroke="#336633" points="20,0 ..."
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		196
		197	Returns:
		198	# A string containing a polyline tag for each grid line
		199	" <polyline class="FullHour" points="20,0 ..."
		200
		201	RLRR R$(RRSR9((sK/var/www/bus/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyR{s '
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		203
		204	Args:
		205	# Integer, index of stop to be highlighted.
		206	index: 4
		207	# An optional string with a html color code
		208	color: "#fff"
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		210
		211	Args:
		212	# Class Trip is defined in transitfeed.py
		213	triplist: [Trip, Trip, ...]
		214	# An optional string with a html color code
		215	color: "#fff"
		216
		217
		218	1.0 is the original canvas size.
		219
		220	Args:
		221	# float value between 0.0 and 5.0
		222	newfactor: 0.7
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		225
		226	N(t__name__t
		227	__module__t__doc__RkR<RRQR!RRRRRR&R'RFRGRRJRRRiRjRmRnRoRpRrRz(((sK/var/www/bus/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyR(s4 ) E $ : ((R}R*R,R(((sK/var/www/bus/origin-src/transitfeed-1.2.5/gtfsscheduleviewer/marey_graph.pyt<module>"s