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comparison static/iwws.js @ 13:a0213f0e707b

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- Update for v12.10 - Plot raw data to show more up to date data - Average/peak winds so they don't spam the display. - Display the time of the most recent data.
author Daniel O'Connor <darius@dons.net.au>
date Thu, 10 Jan 2013 16:38:36 +1030
parents bfe6ed563ffc
children 294e6a7fbb6e
comparison
equal deleted inserted replaced
12:bfe6ed563ffc 13:a0213f0e707b
43 var pressure = []; 43 var pressure = [];
44 var i, mint = 5, maxt = 35; 44 var i, mint = 5, maxt = 35;
45 var l = datacache['idx'].length - 1; 45 var l = datacache['idx'].length - 1;
46 var d = new Date(); 46 var d = new Date();
47 var tzofs = d.getTimezoneOffset() * 60; 47 var tzofs = d.getTimezoneOffset() * 60;
48 var wavgtmp = 0;
49 var wgusttmp = 0;
50 var winddir = 0;
51 var windavgs = 0;
52 var windnavg = 4;
48 for (i = 0; i < l; i++) { 53 for (i = 0; i < l; i++) {
49 // Convert time from UTC to browser LT 54 // Apply offset so Flot times look right (it always shows UTC)
50 t = datacache['idx'][i] - tzofs; 55 t = (datacache['idx'][i] - tzofs) * 1000.0;
56
57 // Keep track of min/max temperature
51 if (datacache['temp_out'][i] < mint) 58 if (datacache['temp_out'][i] < mint)
52 mint = datacache['temp_out'] 59 mint = datacache['temp_out']
53 if (datacache['temp_out'][i] > maxt) 60 if (datacache['temp_out'][i] > maxt)
54 maxt = datacache['temp_out'][i] 61 maxt = datacache['temp_out'][i]
55 temp_out.push([t * 1000.0, datacache['temp_out'][i]]); 62
56 if (datacache['hum_out'][i] != null && datacache['temp_out'][i] != null) { 63 // Store outside temperature if valid
57 dewpt.push([t * 1000.0, hum2dp(datacache['hum_out'][i], datacache['temp_out'][i])]); 64 if (datacache['temp_out'][i] != null) {
65 temp_out.push([t, datacache['temp_out'][i]]);
66
67 // Calculate dewpoint if outside humidity is valid
68 if (datacache['hum_out'][i] != null) {
69 dewpt.push([t, hum2dp(datacache['hum_out'][i], datacache['temp_out'][i])]);
70 }
58 } 71 }
59 wavg.push([t * 1000.0, datacache['wind_ave'][i] * 60.0 * 60.0 / 1000.0, wind2angle(datacache['wind_dir'][i])]); 72
60 wgust.push([t * 1000.0, datacache['wind_gust'][i] * 60.0 * 60.0 / 1000.0, wind2angle(datacache['wind_dir'][i])]); 73 // Store baro
61 pressure.push([t * 1000.0, datacache['abs_pressure'][i]]); 74 pressure.push([t, datacache['abs_pressure'][i]]);
75
76 // Store rain if there was any
62 if (datacache['rain'][i] > 0) 77 if (datacache['rain'][i] > 0)
63 rain.push([t * 1000.0, datacache['rain'][i]]); 78 rain.push([t, datacache['rain'][i]]);
79
80 // Store wind (convert to km/r)
81 // Average the average wind speed
82 wavgtmp += datacache['wind_ave'][i] * 60.0 * 60.0 / 1000.0
83 // Pick highest speed gusts
84 var g = datacache['wind_gust'][i] * 60.0 * 60.0 / 1000.0;
85 if (g > wgusttmp) {
86 wgusttmp = g;
87 }
88 // Accumulate speed/gust direction
89 winddir += wind2angle(datacache['wind_dir'][i]);
90 windavgs++;
91 // Normalise
92 if (windavgs == windnavg) {
93 windavgs = 0;
94 wavgtmp /= windnavg;
95 // Note: gust is peak, so nothing to do
96 winddir /= windnavg;
97
98 // Store
99 wavg.push([t, wavgtmp, winddir]);
100 wgust.push([t, wgusttmp, winddir]);
101
102 // Reset accumulators
103 wavgtmp = 0;
104 wgusttmp = 0;
105 winddir = 0;
106 }
64 } 107 }
65 108
66 $.plot($("#graph1"), [ 109 $.plot($("#graph1"), [
67 { data : pressure, label: "Baro", yaxis : 1, points : { show : true }, lines : { show : true } }, 110 { data : pressure, label: "Baro", yaxis : 1, points : { show : true, radius : 0 }, lines : { show : true } },
68 { data : temp_out, label: "Temp.", yaxis : 2, points : { show : true }, lines : { show : true } }, 111 { data : temp_out, label: "Temp.", yaxis : 2, points : { show : true, radius : 0 }, lines : { show : true } },
69 { data : dewpt, label: "Dew point", yaxis : 2, points : { show : true }, lines : { show : true } }, 112 { data : dewpt, label: "Dew point", yaxis : 2, points : { show : true, radius : 0 }, lines : { show : true } },
70 ], 113 ],
71 { xaxis : { mode : 'time' }, 114 { xaxis : { mode : 'time' },
72 legend : { backgroundOpacity : 0, position : 'nw' }, 115 legend : { backgroundOpacity : 0, position : 'nw' },
73 yaxis : { min : 950, max : 1050, tickFormatter : baroFormatter }, 116 yaxis : { min : 950, max : 1050, tickFormatter : baroFormatter },
74 y2axis : { min : mint, max : maxt, tickFormatter : degCFormatter }, 117 y2axis : { min : mint, max : maxt, tickFormatter : degCFormatter },
75 }); 118 });
76 $.plot($("#graph2"), [ 119 $.plot($("#graph2"), [
77 { data : wavg, label: "Wind (Avg)", yaxis : 1, points : { show : true }, lines : { show : true }, direction : true }, 120 { data : wavg, label: "Wind (Avg)", yaxis : 1, points : { show : true }, lines : { show : true }, direction : true },
78 { data : wgust, label: "Wind (Gust)", yaxis : 1, points : { show : true }, lines : { show : true }, direction : true }, 121 { data : wgust, label: "Wind (Gust)", yaxis : 1, points : { show : true }, lines : { show : true }, direction : true },
79 { data : rain, label: "Rain", yaxis : 2, bars : { show : true, barWidth : 0.5 * 60 * 60 * 1000, align : "centre" } }, 122 { data : rain, label: "Rain", yaxis : 2, bars : { show : true, barWidth : 0.5 * 60 * 60 * 1000, align : "centre" } },
80 ], 123 ],
81 { xaxis : { mode : 'time' }, 124 { xaxis : { mode : 'time' },
82 legend : { backgroundOpacity : 0, position : 'nw' }, 125 legend : { backgroundOpacity : 0, position : 'nw' },
83 yaxis : { tickFormatter : spdFormatter }, 126 yaxis : { tickFormatter : spdFormatter },
84 y2axis : { min : 0, tickFormatter : mmFormatter } 127 y2axis : { min : 0, tickFormatter : mmFormatter }
85 }); 128 });
129 // Reverse tzofs calculation as Date does local time
130 var dobj = new Date(datacache['lastdata'] * 1000.0);
131 $('#stamp').html(sprintf("Last data: %02d/%02d/%02d %02d:%02d:%02d", dobj.getFullYear(), dobj.getMonth() + 1, dobj.getDate(),
132 dobj.getHours(), dobj.getMinutes(), dobj.getSeconds()));
86 } 133 }
87 134
88 function wind2angle(dir) { 135 function wind2angle(dir) {
89 var a = dir * (360.0 / 16.0); 136 var a = dir * (360.0 / 16.0);
90 return a; 137 return a;